Lance Neward pinpoints "leadership" as theme of his SPE presidency.

Lance Neward pinpoints "leadership" as theme of his SPE presidency.

Also featured were the company's AutoProbes I and II melt thermocouples, designed to measure temperature variations in the melt stream known to affect mechanical, dimensional, and appearance of extruded products. And, Dynisco's OPT700 Fiber Optic Melt Pressure Transducer allows processors to simultaneously measure melt pressure and melt temperature from a single point on the machine. The Dynisco Companies, Four Commercial St., Sharon, MA 02067; (617) 784-8400; Fax (617) 784-7950.

Glenn L. Beall, Glenn Beall/Engineering Inc., reported on important advances in rotational molding that have made the technique both more efficient and more precise. Machine control is provided by the Rotolog System, which uses an in-mold thermocouple to produce an accurate temperature profile so that operators know exactly when to cool; and machines are now available with up to five arms for increased efficiency. Other developments Beall noted are a nitrogen gas purge to prevent oxidation and an in-mold insulated video camera for advanced R&D. Remarking that rotational molding has gone about far as possible with polyethylene, Beall said that new materials that can withstand heat for a comparatively long time, particularly engineering plastics, are needed for new applications.

International Award Address Meredith-Springfield Associates, Inc., outlined various technical services that it offers to in-house and custom blow molders and end-users of blow-molded articles. The firm's services include sampling, process and product development, and videotape training programs for blow molders.

Among the training programs available are "Blowmolding Resin Control," "Understanding a Continuous Extrusion Blowmolding Machine," and "Working with the Calibration Station." MeredithSpringfield Associates, Inc., 357 Cottage St., Springfield, MA 01104; (413) 732-3213; Fax (413) 7880847.

The FM Group provided technical information on its SprinCol colorants, which can be used to achieve special effects such as marble, granite, stone, and glitter opalescence. The effects can be achieved by molding, extrusion, calendering, casting, or coating. FM Group Inc., 20-K Robert Pitt Dr., Monsey, NY 10952; (914) 356-5500 or (800) 366-2837; Fax (914) 356-5222.

Dr. Paul demonstrated that small amounts of SMA can form graft and block copolymers in situ at the interface between two incompatible components to greatly strengthen the interface and create a polymer alloy. Two important commercial applications of such reactive coupling were discussed: nylon 6/ABS alloys, and nylon 6 toughened with coreshell impact modifiers. In each case, rubber particle size can be controlled and SMA copolymers selected that are miscible with one component, the acrylonitrile in ABS or the acrylate in the shell polymer, and can react with the nylon 6 matrix via the amide end groups during melt processing.

Ceast USA, Inc., designs and produces instruments and apparatus for quality control on materials.

The company's HDT3000 Vicat test station is equipped with a microprocessor controlled thermoresistance to individually monitor and record the test temperature. Ceast USA, Inc., P.O. Box 3085, Fort Mill, SC 29715; (803) 548-6093; Fax (803) 548-1954.

Flow Vision, Inc., highlighted its Polymer Event Detector, the COLA-2000 (Continuous On-Line

Analyzer), a hot melt stream analyzer. The system can distinguish between discrete events such as gels, voids, agglomerates, and other contaminants by recognizing programmed patterns of a given resin morphology. Flow Vision, Inc., 1911 G Associates Lane, Charlotte, NC 28217; (704) 357-9849; Fax (704) 357-9854.

The second major strategy is to strengthen SPE's international presence. The first goal is to open the Brussels office this summer. The second goal is to establish a Section in Britain, where no plasticscentered society of SPE's stature now exists. The third goal is to explore means of incorporating into SPE plastics professionals from Eastern Europe, many of whom cannot afford membership dues, yet who require the technical knowledge that SPE disseminates. The final goal is to find a way of adding "International" to the SPE name.

H.W. Theller, Inc., introduced the Model HT Hot Tack Heatsealer as part of its line of high-precision laboratory sealers. Depending on the mode selected from the computer menu, the machine automatically configures itself to perform hot tack, heatsealing, heatsealing and ultimate seal strength, peel strength of heatseals or laminations, or curve plotting. H.W. Theller, Inc., P.O. Box 751270, Petaluma, CA 94975-1270; (707) 762-3820; Fax (707) 769-0874.

At ANTEC '93, however, one word--"infrastructure"--was most often heard in refrain, and with somewhat more focus than at previous ANTECs. The lack of a viable infrastructure, the need for it, and the role of partnerships between government and industry to foster it were extensively discussed. In the contest of ideas at the '93 Super Session, the need for practical planning to meet infrastructure requirements seemed to catch up fast with consumer education in the quest to advance recycling. While the unthinking tosser of a plastic cup got a sound drubbing as one of the major culprits, panelists and audience moved closer to the concept that--where effective growth of recycling is concerned--money and organization, and building of markets for recycled products, will be what will ultimately carry the day.

Adell Plastics, Inc., is an independent compounder of thermoplastic resins. The company has a complete range of extrusion systems, all designed to perform highly specialized compounding operations. They also have the expertise and the equipment to produce a wide range of specialty compounds to customer specifications. Adell Plastics, Inc., 4530 Annapolis Rd., Baltimore, MD 21227-4899; (410) 789-7780 or (800) 638-5218; Fax (410) 789-2804.

Profitability in the '90s John A. Antonopoulos of Krupp Kautex described his company's efforts in the blow molding of large multilayered parts. Two important reasons for using coextrusions are gas barrier improvement and incorporation of recycled material. Both were accomplished in an HDPE/adhesive/barrier/adhesive/regrind/HDPE six-layer gas tank. The EVOH barrier layer thickness is measured ultrasonically for quality control. Physical properties are equal to those of the monolayer construction, and material melt flow is adequate for continuous blow molding.

International Color Standard displayed its Pantone Plastics Color System, a universal color system developed specifically for the plastics industry to eliminate the problems associated with specifying and matching colors from paper, textiles, or materials other than plastic. The system contains more than 2800 color chips in opaque and transparent plastic, individually stamped with a Pantone reference number. International Color Standard, 100 Telmore Rd., East Greenwich, RI 02818; (401) 885-9090; Fax (401) 885-1290.

Dynisco's MTX infrared melt temperature transducer provides nonintrusive measurement at a speed

of response of 0.01 sec--up to 1000 times faster than traditional probes. Using the MTX, processors can now monitor the fast changing thermodynamics of the injection molding process.

Hitech's screen changers use filter ribbons woven of stainless steel wire. The screens move slowly, almost imperceptibly, so as not to disturb the melt flow. The filter ribbon is driven by the hydraulic force of the extrudate, and its movement is controlled automatically by advanced electronic logic.

High-Technology Corp., 144 South St., Hackensack, NJ 07601; (201) 488-0010; Fax (201) 488-4318.

Alloy Polymers, Inc., presented literature on its Technology Center, which supports the company's exclusive use of twin screw compounding extruders. This technology allows for total processing flexibility with maximum control of processing conditions--shear, melt viscosity, and residence time.

Screw design and machine configuration may be custom tailored to achieve unique compounds, blends, and alloys or concentrates that require multiple feeds of dissimilar materials (liquids, powders, pellets, reinforcing materials, etc.), reactive processing, inerting, or vacuum or atmospheric venting. Alloy Polymers, Inc., 3310 Deepwater Terminal Rd., Richmond, VA 23234; (804) 232-8000; Fax (804) 230-0386.

Berstorff Corp. offered literature on its ZE-A extruder series, which, the company says, offers economic advantages for raw material manufacturers, raw material refiners, and the actual user. An important feature is the enlarged screw channel volume, which allows increased outputs at low melt temperatures. Berstorff Corp., 8200 Arrowridge Blvd., P.O. Box 240357, Charlotte, NC 28224; (704) 523-2614; Fax (704) 523-4353.

Fluid Dynamics demonstrated how its FIDAP software package provides a powerful, general-purpose analytical tool for design, testing, and production. Fluid Dynamics International, 500 Davis St., Suite 600, Evanston, IL 60201; (708) 491-0200; Fax (708) 869-6495.

New Technology Forum An opening overview by Russell Gould, president of RG Associates, discussed trends in the extrusion business, notably related to the importance of quality, costs, and the increasing need to factor recycling into the operational equation. Gould cited growing emphasis on achieving ISO 9000 capability as one of the most important changes in the extrusion industry. Downsizing and more efficient use of human resources; higher outputs with lower costs; and more sophisticated, automated operations are ongoing trends.

Heraeus showed its Xenotest 1200 CPS, an instrument for testing light- and weather-fastness of all types of materials in accordance to standards. Also displayed was the company's Suntest CPS accelerated exposure machine table unit. Heraeus DSET Laboratories, Inc., 45601 N. 47th Ave., Phoenix, AZ 85027-7042; (602) 465-7356; Fax (602) 465-9409.

Chemir/Polytech Laboratories, Inc., provides chemical analysis and testing services. It specializes in materials identification, polymer testing, deformulations, failure analysis, comparative analysis, and expert witness and testimony. Chemir/Polytech Laboratories, Inc., 2173, Big Bend Blvd., St. Louis, MO 63117; (314) 644-2002; Fax (314) 644-2004.

Killion Extruders, Inc., highlighted its KN series of heavy duty extruders with screw diameters from 1-1/4 to 3 inches. The equipment may be specified to accommodate corrosive polymers, high temperature materials, and nonthermoplastics. The company also offered information on its floor model extruders, laboratory sheet takeoff, cast film takeoff units, and its precision vacuum tank.

Killion Extruders, Inc., 200 Commerce Rd., Cedar Grove, NJ 07009; (201) 239-0200; (201) 239-3061.

Fortune Personnel Consultants of Houston, Inc., are personnel specialists serving the plastics industry. They handle R&D, engineering, sales and marketing, and manufacturing positions. Fortune Personnel Consultants of Houston, Inc., 2555 Central Parkway, Houston, TX 77092; (713) 680-9132 or (713) 680-1737.

Mold-Masters Ltd.'s hot runner technology includes the Compact Master-Shot nozzle for relatively small parts (up to 2.4-oz shot weight). The nozzle provides a relatively large internal channel diameter of 7 mm and an external diameter of 15 mm, permitting greater cooling close to the gate area. It operates at 24 volts and works within a temperature window of 6 |degrees~ C. The firm also offers a Master-Probe nozzle with a fused-in copper core that helps draw friction heat out of the gate area to speed freeze-off and achieve faster cycle times. Mold-Masters Ltd., 233 Armstrong Ave., Georgetown, Ontario, L7G 4X5 Canada; (416) 877-0185; Fax (416) 873-2818.

William Kramer, technical director, Davis-Standard, in his coverage of state-of-the-art extrusion controls/technology, juxtaposed increasing customer expectations against sometimes decreasing manufacturing capabilities, caused by the loss of hands-on operator skills, which may result in the undermining of even highly sophisticated control efforts.

Moldflow, Inc., outlined the capabilities of its computer-aided engineering software for injection molding analysis. The firm's products include software for analysis of flow and cooling (MF/FLOW and MF/COOL), and shrinkage, warpage, and stress (MF/WARP). MF/WARP simulates the effect of molding on product geometry, isolating the dominant causes of warpage to permit application of the correct remedy. It also evaluates product strength and stiffness. MF/FLOW analyzes polymer flow within the mold, permitting improved mold cavity layout, materials selection, and mold processing conditions for the filling and packing phases of the molding cycle. Moldflow, Inc., Suite 2208, 4341 S. Westnedge, Kalamazoo, MI 49008; (616) 345-4812; Fax (616) 345-4816.

SPE's New Technology Committee presented a lively, comprehensive update on processing--its effect on part performance, recent developments, and challenges--at the second New Technology Forum.

Dr. Vijay K. Stokes, of GE Corporate R&D, stressed the importance of including the effects of processing when predicting the structural performance of a part. Key factors are the type of material, amorphous or semicrystalline and neat or filled or reinforced; and whether or not the part geometry depends on the processing. Only neat amorphous systems with their geometry dependent on the processing can be analyzed by structural mechanics, i.e., conventional finite-element analysis based on ASTM data, Stokes said. All other systems require process mechanics and micromechanics to determine morphology and properties before structural mechanics can be applied.

Applications for gas-assisted injection molding, said Andrew J. Poslinski of GE Corporate R&D, are developing for thick parts such as hollow beams for handles and frames, and for hollow ribs on thin parts such as panels and chassis. Part performance depends on the skin thickness, which is determined by the extent of gas penetration. The viscosity and shear thinning characteristics of the material affect the gas penetration, and because the gas follows the path of least resistance in processing, special software is needed to help design systems with balanced flow.

Bay Resins, Inc., specializes in formulating and compounding filled and reinforced engineering resins. The company's capabilities include mineral filling; glass, graphite, and aramid fiber reinforcing; the mixing and reacting of multiple resin systems; and the addition of lubricants such as graphite powder, silicone fluids, and PTFE powders. Bay Resins, Inc., P.O. Box 630, Route 313, Millington, MD 21651; (301) 928-3083.

Principal technical barriers to improved processing, Hunston said, were a lack of understanding of the physical and chemical changes during processing and their influence on performance, and of interface effects. He recommended development of microstructure-performance relationships with the aid of improved process monitoring sensors and process simulation models, and more study of surface treatments, sizing, and resin flow/wetting. Complementary technologies, such as preform and prepreg preparation, joining, tooling, microwave heating, and heat-assisted fiber placement, he said, also need to be refined.

The Davis-Standard D-TEX is a rugged, production rated twin screw extruder, available in six machine size categories from 30-mm to 128-mm screw diameter for polymer compounding from 10 to 8000 lbs/hr in lengths up to 56 L/D. The company also highlighted its EPIC II extrusion controller, which is IBM AT compatible and is equipped with a 386/25 MHZ Processor. Davis-Standard, Extrusion Systems, #1 Extrusion Dr., Pawcatuck, CT 06379; (203) 599-1010; Fax (203) 599-2952.

Double M Plastics offers injection molders a chance to test their molds under simulated manufacturing conditions prior to being sent to customers. They provide complete molding process data, full SPC capabilities, entire tryout history, and bound report and data disk. Double M Plastics, 4165 Walker Rd., Windsor, Ontario, Canada N8W 3T6; (519) 966-7022; Fax (519) 966-3135.

MTS Colorimetrie's Spectrophotometer SD 92 features an autocalibration device that reportedly can correct "any minimal Extruder Technologies highlighted its screw elements and assemblies for twin or single screw extruders, twin or single screw extruder barrel sections, and its complete new or reconditioned extruders and process sections. Extruder Technologies, Freedom Dr., P.O. Box 510, Lawrence, PA 15055; (412) 745-7869; Fax (412) 745-7810.

COPYRIGHT 1993 Society of Plastics Engineers, Inc. No portion of this article can be reproduced without the express written permission from the copyright holder.

LEDA provides information on the economic advantages of locating a business in Lafayette, La. Site selection services for new and expanding industry are also provided free of charge. Lafayette Economic Development Authority (LEDA), 2004 West Pinhook Rd., Suite 100, Lafayette, LA 705083289; (318) 234-2986; Fax (318) 234-3009.

While applauding the work of the American Plastics Council, Gambrell said it is not sufficient to

overcome the more positive public perception of traditional materials. He called for all industry employees to get personally involved in communicating the real environmental story about plastics.

Kayeness also introduced a new digital method B capability for its line of Galaxy series melt indexers. Designated option D7059, the system utilizes a high resolution digital encoder to measure piston rod position and speed of descent. Determination of flow rate over a millimeter of piston movement with up to 15 measurements per single charge of material is possible. The system software also calculates and displays melt flow index in real time as the test proceeds; thus it is no longer necessary to wait until the end of the test to determine the melt flow index.

C.W. Brabender Instruments, Inc.'s Data Processing Plasti-Corder PL 2000 is a computer-rheometer system for dynamically testing the processability of thermoplastics, thermosets, elastomers, and other plastic and plastifiable materials under practice-oriented conditions. Production processes such as compounding, mixing, masticating, extruding, and calendering can be simulated on laboratory scale and followed by measurements.

Betacontrol develops and manufactures measurement and control systems to improve the quality of sheet products and bring cost reduction and productivity increases to sheet, film, textile, or coating operations. The systems continuously monitor and control key quality parameters such as basis weight, caliper, coating thickness, moisture, and density. Betacontrol, P.O. Box 235, 435 Route 202, Towaco, NJ 07082; (201) 263-0724; Fax (201) 263-0477.

Kistler Instrument Corp. featured its Unisens exchangeable cavity pressure sensor with uniformed sensitivity. Cavity pressure can be measured directly (on the surface of the cavity) or indirectly (behind the ejector pin). Kistler Instrument Corp., 75 John Glenn Dr., Amherst, NY 14228-2171; (716) 691-5100; Fax (716) 691-5226.

In Thursday's plenary speech, Michael McEvoy, vice president, Baxter Healthcare Corp., presented a dynamic picture of new technology driving industry directions. After touching on the shakeups and realignments in many industries, he discussed the technologically based changes, such as the use of powerful computer workstations for CAD/CAM/CAE, to innovate and accelerate the new application process. "Previously," he said, "as just one example, automobiles were developed on a five-year cycle; now the development time is reduced to three years, and the Japanese are thinking in terms of one year."

McCullough & Benton, Inc., a manufacturers' agent and raw materials distributor, highlighted various products, including laboratory instruments and processing equipment, resins, pigments, fillers, and specialty chemicals. The firm's clients include Artisan Industries; C.W. Brabender Instruments, Inc.; Cabot Corp.; Celite Corp.; Datacolor International (ACS); Fillite; Henkel Corp.; Kerr-McGee Chemical; Mathe Co./Div. of Norac; The Mearl Corp.; Mineral Pigments; The Montana Talc Co.; Mountain Minerals; Ore and Chemical Corp., Div. of Sachtleben; Rhone Poulenc Fine Organics; and Shell Chemical Co. McCullough & Benton, Inc., P.O. Box 29303, Atlanta, GA 30359; (404) 325-1606.

AC Technology introduced a PC version, with full 3-D analysis, of its C-Mold v3.2 that is available on engineering workstations, mainframes, and supercomputers. All software products in C-Mold v3.2 are provided in the PC version, from basic filling and cooling analyses to the complete performance solution (shrinkage and warpage analysis), as well as gas-assisted and reactive injection solutions.

AC Technology, Warren Road Business Park, 31 Dutch Mill Rd., Ithaca, NY 14850; (607) 257-4280; Fax (607) 257-6355.

In closing, President Neward returned to his theme of cooperative leadership by asking each member's help in providing "technological leadership through work and research; leadership in and for the Society . . .; and leadership to the public at large," by means of educating others as to the benefits of plastics.

A Corporate Environmental Program Peter Cloeren, Jr., president, Cloeren Co., covered issues in die design, cautioning that "in the characterization of the numerous pertinent disciplines, one should not allow application theory and computer science to overwhelm production realities."

Hoffmann-La Roche provided information on its Ronotec 201 vitamin E-based polymer antioxidant, which, in studies, has been proven to reduce taste and odor in HDPE 1-gal water bottles. HoffmannLa Roche Inc., Industrial and Agricultural Products, 340 Kingsland St., Bldg. 787, Nutley, NJ 071101199; (201) 909-8205.

The anisotropy of liquid crystal polymers, said Richard W. Lusignea, Superex Polymers, Inc., makes their end-use properties highly dependent on processing, and new processing techniques are needed to increase the number of applications. One such technique used by his company is a counterrotating die that adds transverse shear to the melt to produce biaxially oriented LCP films with exceptional strength and barrier properties. A trimodal die with a central cylinder is another new device. It produces products with highly oriented skins and cores that show no dropoff in tensile strength in thicker sections.

Custom Scientific Instruments (CSI) introduced its MF12 Melt Flow Indexer, an extrusion plastometer that provides basic melt flow measurements for thermoplastics. The MFI2 can determine extrusion properties, check incoming materials, and characterize new polymers. Also displayed was the company's CSI HDV DTUL/VICAT Systems for determining deflection temperatures under load (DTUL) and Vicat softening points of plastic materials. Custom Scientific Instruments, 13 Wing Dr., Cedar Knolls, NJ 07927; (201) 538-8500 or (800) 229-1274; Fax (201) 984-6793.

MRC Polymers, Inc., presented specifications on its line of recycled engineering resins reported to offer properties that meet or exceed those of comparable virgin plastics at significant cost savings.

The firm's product line includes Naxell Poly-carbonate, Stanuloy Modified Polyester, and Emarex Modified Nylon. Additives options, such as glass reinforcements, flame retardants, and UV stabilizers, are also available. MRC Polymers, Inc., 1716 West Webster Ave., Chicago, IL 60614; (312) 276-6345; Fax (312) 276-4431.

The third major strategy is to provide more and better services to SPE members. The first goal is to improve recognition of SPE leaders and activities at all levels. Establishment of a Society-wide newsletter to better publicize activities and expanding the types of awards for better member recognition will be investigated. Under the second goal of improving recognition of internationallevel award winners, Mr. Neward announced that a proposal is under discussion with the National Plastics Museum in Leominster, Mass., for a year-long display highlighting current ANTEC award winners at the museum, to be updated after each ANTEC. Certification was included in this goal.

The third goal is the development of leadership training courses, either through the Seminar Program or for volunteers at the Section level. The fourth goal is possible modification of the staff organization to enhance member services. Establishment of a customer-service group to provide a "one-stop" response for member's calls, and a field-service department to handle SPE's greatly increased membership will be investigated.

Liquid Carbonic-Fluorodynamic Division provided information on the benefits of plastics fluorination, a process that reduces the permeability and improves the chemical resistance of various plastics and elastomers. Fluorodynamics employs a post-mold fluorination process, which involves loading the plastic articles into a reactor chamber, where a mixture of fluorine and carbon dioxide gas is introduced. The fluorine reacts with the polymer surface, resulting in a permanent modification of the plastic surface. Liquid Carbonic-Fluorodynamic Division, 435 Polymoore Dr., Corunna, Ontario, Canada NON 1G0; (519) 862-5531 or (800) 663-9920; Fax (519) 862-3449.

Kobelco Stewart Bolling Inc. featured its Nex-T, a new compounding unit that combines the company's Mixtron NCM with an under-mixer extruder. Mixing and extrusion can be separately controlled, enabling the selection of optimum operating conditions, use of a wide range of materials, and economical kneading and pelletizing.

As expected, the issue of recycling quickly took center stage and held it for the duration of the forum. Moderator Bill Nigut, a political reporter from WSB-TV, Channel 2, Atlanta, valiantly strove to get to the core of the matter as the sometimes impassioned panelists and audience members vied to make their points, for or against government, the public, or the need for more regulation or more laissezfaire. The conviction resulting from the extensive interplay of ideas is that there is a considerable distance to go before any real consensus can be reached, and that essentially what was achieved was to replay previous environmental Super Sessions in a later time frame, albeit with different, more dramatic staging.

ANTEC '93's Super Session, "Plastics and Politics--The Coming Battle," was a microcosm of the controversy about the subject in society as a whole. Conducted in the familiar mode of a panel and audience participation TV talk show, the Super Session provided a variety of opinions concerning where responsibility for environmental deterioration resides and who should do what about it.

BP Chemicals offered information on its Polybond functionalized polyolefins, which offer a unique approach to polymer modification. Polybond products function as chemical coupling agents for filled thermoplastic composites; polar substrate adhesives; dispersing agents for highly loaded masterbatches; metal adhesives; polymer alloy compatibilizers; and adhesive tie layers. BP Chemicals, Polybond Products, Newburg Rd., P.O. Box 741, Hackettstown, NJ 07840; (800) 2724367; Fax (708) 850-7282.

Modern Plastics magazine, published monthly by McGraw-Hill, Inc., offered subscription information and samples of its May 1993 issue. Modern Plastics/McGraw-Hill, Inc., Princeton Rd., N-1, Hightstown, NJ 08520; (609) 426-5830; Fax (609) 426-5472.

CNA Insurance Companies' new Plastic Processors Program includes basic coverages for commercial property, commercial liability, commercial auto, and workers' compensation. Optional coverages include commercial crime, commercial umbrella, inland marine, and business interruption. Also available are specialized coverages such as patterns, molds, and dies; replacement cost coverage; marring and scratching, and change in temperature and humidity. CNA Insurance Companies, CNA Plaza-9W, Chicago, IL 60685; (312) 822-7159 or (800) 262-6241; Fax (312) 8221645.

Maag Pump Systems of America, Inc., presented information on its line of polymer process pumps, reported to feature low shear design, minimal polymer residence time, and high volumetric efficiency. The pumps can handle melts with viscosities as high as 20 million cp, flow rates from 50 to 50,000 lb/hr, and vacuum conditions down to 0.5 mm Hg. The firm also offers extrusion pumps, reported to reduce energy consumption and eliminate extruder surging, and compounding pumps

that are capable of handling filled polymers and low melt index polymers. Maag Pump Systems of America, Inc., P.O. Box 38, Matthews, NC 28106-0038; (704) 841-3537; Fax (704) 841-3547.

Tuesday's plenary speaker, John N. Lauer, president and chief operating officer, BFGoodrich, described his company's response to the public's environmental concerns as a proactive companywide compliance program under the oversight of top management coupled with community outreach programs primarily in localities of company operations. Every BFGoodrich operating facility, business, and product has a five-year strategy for continuous improvement in environmental, health, and safety areas. Each unit is subject to internal compliance audits and assurance audits by external experts to ensure that goals are being met. Results are reported to a dedicated corporate staff, then to Mr. Lauer, and finally to an oversight committee composed totally of outside directors.

Buss (America), Inc.'s Buss Kneader employs a combination of axial dispersive and distributive mixing across the entire screw channel, providing unique compounding characteristics. A reverse flight element permits localized compounding of polymers in a dynamic mixing zone. Mixing is less aggressive with low viscosity materials, and more aggressive with high viscosity materials. Buss (America), Inc., 230 Covington Dr., Bloomingdale, IL 60108-3106; (708) 307-9900; Fax (708) 3079905.

Advanced Cardiovascular Systems, Inc., a designer and manufacturer of therapeutic medical devices used in treating atherosclerotic disease of the coronary and peripheral arteries, distributed literature highlighting its engineering employment opportunities, which include positions for extrusion, polymer processing, and R&D engineers. Advanced Cardiovascular Systems, Inc., P.O. Box 58167, Santa Clara, CA 95052-8167; (800) 633-3375; Fax (408) 235-3702.

Mearl Corp. exhibited a variety of pearlescent and iridescent pigments, including its recently introduced Mearlin MagnaPearls 1000 and 2000. Both are Ti|O.sub.2~-coated mica pigments, recommended by the manufacturer for applications requiring the combination of an attractive, bright white pearl effect and excellent coverage. MagnaPearl 1000 has a particle size range of 8 to 48 microns, and MagnaPearl 2000, 5 to 25 microns. Both are rutile versions that exhibit a brighter, whiter, and more lustrous effect than previously introduced anatase grades. Mearl Corp., 41 E. 42nd St., New York, NY 10017; (212) 573-8500; Fax (212) 557-0495.

CMC Technologies, Ltd., offered literature on its measurement and control instrumentation. New products included a microprocessor-based single channel IPC (intelligent process controller), for the measurement and control of pressure, force, strain, or other process variables; and a microprocessor-based MMC, a four-channel monitor controller designed for cyclical (forming) processes such as molding, die casting, and forging. CMC Technologies, Ltd., P.O. Box 1918, Buffalo, NY 14231-1918; (716) 688-6186; Fax (716) 636-0411.

The Association Members Retirement Program offered information on its various types of retirement plans, plus typical investments, services, and reporting of account activity for every participant. The Association Members Retirement Program, Information Distribution Center, P.O. Box 2011, Secaucus, NJ 07096-9807; (800) 523-1125 or (201) 392-5339; Fax (201) 392-2300.

Incoming President Neward chose "Leadership" as his theme for 1993-1994. He defined a cooperative leadership composed of the Executive Committee, the Council, and the SPE staff, who would blend their diverse talents to achieve common goals. Four major leadership strategies were presented with specific goals under each strategy. The first strategy is to broaden the diversity and depth of the membership. Its first goal is to explore ways to reach people who have never considered either plastics as a career or SPE as a professional society. Executive Committee member Dr. Costel

D. Denson has been asked to head an ad hoc task force on Outreach Strategy and Development. The second goal is to better support and understand the SPE student members. Council and Executive Committee members will be asked to visit at least one Student Chapter in the coming year. A related goal is to explore ways that the SPE can act as a clearinghouse for financial aid, an endeavor in which the Society may be joined by the Plastics Institute of America.

LCI Corp.'s precision-engineered gear pumps are at the heart of the packaged systems that the company produces for extrusion and compounding applications. Process improvements that reportedly result from use of LCI extrusion pumps include enhanced product uniformity (relative to gage thickness), more efficient mixing/melting, and reduced energy requirements. LCI Corp., Fluid Systems Division, P.O. Box 16348, Charlotte, NC 28297; (704) 394-8341; Fax (704) 393-8590.

Eastman offered information on the Aquastab Additives delivery system--dispersed polymer additives in an aqueous emulsion of a low-molecular-weight oxidized polyolefin wax. The company also distributed literature on its Eastobrite OB-1 optical brightener, which is added to many materials to reduce yellowing, improve whiteness, and enhance the brightness of a product. Eastman Chemical Co., Attn: Polymer Modifiers, P.O. Box 431, Kingsport, TN 37662-5280; (800) 327-8626 or (615) 2292000.

Kenrich Petrochemicals, Inc., distributed scientific literature concerning its line of neoalkoxy titanate and zirconate coupling agents. These agents promise major benefits in productivity for filled or unfilled, rigid or flexible PVC injection molded, extruded, or foamed products. Data show that more product can be produced in less time, with fewer rejects, and lower material/energy costs.

Kenrich Petrochemicals, Inc., 1400 East 22nd St., P.O. Box 32, Bayonne, NJ 07002-0032; (201) 8239000; Fax (201) 823-0691.

Also highlighted by Bohlin was the VOR Rheometer for Melts. This mechanical spectrometer is designed to meet the needs of research as well as QC laboratories. The VOR-M provides dynamic oscillatory data for polymer melts and solids, steady shear measurements of both viscosity and normal stress, and a system suitable for low viscosity fluids. Bohlin Instruments, Inc., 2540 Route 130, Suite 113, Cranbury, NJ 08512; (609) 655-4447; Fax (609) 655-1475.

The fourth strategy is to provide for the future growth and strength of the Society. To achieve the first goal, a new Strategic Plan for guidance to the year 2000, a committee has been formed under the leadership of Second Vice President Jay Gardiner. The next three goals are financial--targets of $175,000 for the Capital Fund and $350,000 for the Scholarship Fund; and establishment of a new class of membership called a Sustaining Member or Corporate Partner to offer ways to support the Society beyond annual dues. The final goal is to evaluate the concept of devoting 1.5% of the annual budget for SPE staff training and professional development.

Cabot Corp. distributed literature on its Special Carbon Blacks for color, conductivity, and UV protection. Cabot Special Blacks are manufactured by a continuous process to meet rigorous specifications and satisfy end-use performance requirements. Cabot Corp., 950 Winter St., P.O. Box 9073, Waltham, MA 00254; (617) 890-0200; Fax (617) 890-7920.

Monday's plenary speaker, Ed Gambrell, vice president for the Polyolefins, Styron Polystyrenes, and Saran Products divisions, Dow Plastics, noted that because of eroding profits from price pressures and rising costs, analysts are predicting a major restructuring in the plastics industry. The key to restoring profitability and avoiding extensive downsizing, Gambrell said, is rapid growth "by developing new applications, and at the same time, . . . extract(ing) maximum value for the contributions we make to new and better products." Maximum value cannot be obtained through

interpolymer competition, he maintained, but by challenging traditional materials, which still have 95% of the materials market.

Koch Engineering Co., Inc., displayed its Koch Melt Blender, for effecting mass and temperature homogenization of the melt stream from a plastics extruder. The blender's design and method of operation is similar to the operation of the Koch Mixing Head, also exhibited, which is used by injection molders for similar purposes. Koch Engineering Co., Inc., P.O. Box 8127, Wichita, KS 67208; (316) 832-5110; Fax (316) 832-6843.

Recycling Replayed Chemineer-Kenics displayed its line of Static Mixers, Heat Exchangers, and Thermogenizers. The Kenics Heat Exchanger employs static mixing technology for use on viscous polymer heating and cooling applications. The Post Extrusion Thermogenizer unit is used for thermal homogenization and additive blending of polymer melt. Chemineer-Kenics, 125 Flagship Dr., North Andover, MA 01845; (508) 687-0101; Fax (508) 687-8500.

Antek Instruments, Inc., exhibited its Nitrogen/Sulfur Analyzers. Pyro-chemiluminescence is a clean, fast, accurate, and precise method for determining total chemically bound nitrogen in a wide variety of sample matrices--gas, liquid, and solid. Pyro-fluorescent sulfur analysis is more stable than coulometric methods and more sensitive than X-ray, and does not have their matrix sensitivity problems. It provides sulfur quantitation of gas, liquid, or solid samples. Both techniques are entirely instrumental. Antek Instruments, Inc., 300 Bammel Westfield Rd., Houston, TX 77090-3508; (713) 580-0339 or (800) 365-2143; Fax (713) 580-0719.

The 1993 SPE International Award winner, Dr. Donald R. Paul, professor of chemical engineering and director of the Polymer Research Center at the University of Texas at Austin, gave Wednesday's plenary speech, titled "From Blends to Alloys." He discussed the use of compatibilizers to create, at lower cost, new polymers without new molecules and to produce viable products from mixed plastics waste. After noting that polymer pairs are, in general, immiscible, he reviewed earlier work that showed, in one example, how the miscibility of styrene-maleic anhydride (SMA) copolymers with various polyacrylates depended on MA concentration.

Noting the current emphasis on speed and improved product quality, value-added, high-tech products in biotechnology, and in recreational and most other markets, Mr. McEvoy said, are being designed in what he called a "get fast or go broke" environment. The growing use of increasingly sophisticated computer-driven design tools, and solid modeling techniques for rapid prototyping, are facilitating this rapid transfer of design concepts to marketable products.

Business Meeting Highlights IBM Analytical Services Group, representing IBM's advanced analytical laboratories, is involved in solving intricate, multivariable problems related to semiconductor and microelectronics packaging development and manufacturing. In a broader range of technologies, involving polymer systems, problems that are considered include polymer surface analysis, microstructural analysis, trace chemical components, microspectroscopy, defect identification, molecular orientation, and mechanical properties determinations. IBM, East Fishkill Facility, 1580 Route 52, Hopewell Jct., NY 12533; (800) 228-5227.

Elf Atochem North America exhibited two product lines--Pebax thermoplastic elastomer, and Rilsan polyamides 11 and 12. Pebax resins combine high strength, excellent impact and chemical

resistance, low moisture absorption, high elastic memory, and ease of processability, making them a popular material for a variety of applications for the medical, sporting goods, and film industries, among others. Rilsan polyamides 11 and 12 combine superior dimensional stability, stable electrical and physical properties, and resistance to impact, abrasion, and chemicals. Elf Atochem North America, Inc., Engineering Polymers, Three Parkway, Philadelphia, PA 19102; (800) 225-7788.

Nonhomogeneous systems with varying densities, such as structural foam and continuous random glass-mat reinforced thermoplastics, Stokes noted, require even more sophisticated techniques. In addition, thermoviscoelastic models are required to accurately predict dimensional stability.

Enprotech Mechanical Services offered literature on their services, including injection molding equipment remanufacture, control panel design and fabrication, diagnostics and inspection services, and portable machining services. Enprotech Mechanical Services, Inc., 223 Peterson Dr. Elizabethtown, KY 42701-9370; (502) 737-1900; Fax (502) 765-2308.

Gulf States Utilities Co. offers confidential and free business development services to firms seeking buildings or sites in southeast Texas and south Louisiana. Location needs are matched to available properties and appropriate communities. Gulf States Utilities Co., Business Development Group, P.O. Box 2951, Beaumont, TX 77704; (409) 838-6631 or (800) 729-7483; Fax (409) 839-2805.

Kayeness introduced its Aquascan polymer moisture analyzer, which employs a unique dielectric capacitance technology that allows extremely quick and accurate measurements of the moisture levels of hygroscopic polymers such as nylons, PETs, polyesters, PBTs, PMMAs, and others. Moisture levels to 50 ppm can be obtained in as little as 2 min total test time. After just 90 sec, relative moisture levels of a polymer can be determined.

LCP/thermoplastic blends offer ways of increasing LCP applications at a lower cost, Lusignea said.

Use of just 10% LCP can improve processing by lowering melt viscosity. The coefficient of thermal expansion is also lowered and a barrier layer can be built in by processing. Lusignea noted that LCP reinforcement allows deep drawing of parts, which is not possible with glass reinforcement.

Century Specialties, Inc., manufactures specialty tooling, including a variety of dies, mandrels, mill rolls, precision feed screws (their component parts), and other precession tooling, for the industrial market. Applications for the tooling include the manufacture of pipe, seamless tube, rod, rolled sheet, and nonmetallic compounds for products in many shapes and forms. Century Specialties, Inc., 2410 Aero Park Court, Traverse City, MI 49684; (616) 946-7500; Fax (616) 947-4456.

Cappa-D offered information on its Polycad software package, which solves the equations of conservation of mass, momentum, and energy for molten polymer flow through process equipment.

Cappa-D's other software products include T-Formcad, Extrucad, Flatcad, Coexcad, Layercad, Spiralcad, and Calendercad. Cappa-D, McMaster University, Chemical Engineering, Hamilton, Ontario, Canada L8S 4L7; (416) 521-8815; Fax (416) 522-5004.

Goettfert highlighted its Mi-Robo fully automated melt index system, which features automatic test value acquisition, sample loading, die changing, and cleaning. Also shown was the Rheotens tensile tester for uniaxial extension of polymer melts, and the company's Melt Indexer Model MPX. Goettfert, 488 Lakeshore Parkway, Rock Hill, SC 29730; (803) 324-3883; Fax (803) 324-3993.

D.C. Wilson Co.'s factory training system consists of student lesson books, instructors' manuals, ready-made overhead transparencies of lesson book illustrations, and educational topics, including process definition, working with the equipment, working with the materials, troubleshooting, quality

and productivity, and safety in operations. D.C. Wilson Co., Inc., 2850 Metro Dr., Suite 510, Minneapolis, MN 55425; (612) 858-9000 or (800) 831-0239; Fax (612) 858-5474.

The Management Involvement Forum at ANTEC '93, chaired by George W. Thorne, SPE President in 1991-1992, focused on "Extrusion for the '90s." The all-day session examined economic factors relative to in-house compounding vs. outside purchase; directions in resin development; extrusion and coextrusion-technology; and key elements of global competition.

The two worst problems in molding fiber-reinforced plastics, according to John Theberge, Materials Development Corp., are weldline integrity and anisotropic moldings. One solution described by Theberge is multiple-live-feed injection molding. Feed is split and packing pressure is applied by two pistons that can oscillate either 0 |degrees~ or 180 |degrees~ out of phase. The oscillation of the material removes any weldlines and orientation. In double-live-feed molding, with proper phasing of the four pistons, 90 |degrees~ laminates have been fabricated in situ. Another method, push-pull injection molding, involving alternating feed from two injection units, was developed by Klockner, and, Theberge said, is still only available in Germany.

Hoechst Celanese discussed its new recycling program, Encore Reclaimed Thermoplastic Resins, which offers products and related services for five engineering and high performance thermoplastics. Encore resins consist of formulations based mainly on pelletized regrind from customers' post-industrial scrap, such as sprues, runners, and rejects; post-consumer finished parts; and reprocessed polymer from the company's manufacturing operations. Hoechst Celanese Corp., 114 Mayfield Ave., Edison, NJ 08818-3050; (800) 235-2637.

The key to building public understanding and acceptance, according to Mr. Lauer, is honest, voluntary communication. He cited Avon Lake, Ohio, as a community where BFGoodrich has a considerable presence. The company has shown its facilities there to more than 6000 people during two years of open houses. A quarterly column in the local newspaper is read by 90% of the subscribers. Surveys indicate that these and other programs are perceived by the public to have provided useful information and helped to create a positive image of BFGoodrich in the community.

The American Chemical Society (ACS) distributed its Partners for Growth literature, which aims to heighten awareness of current ACS programs, products, and services that are useful to professionals in the chemical and allied industries. ACS also had available information on its scientific software for the PC and Macintosh, which features programs for data management and data reference systems; chemical structure drawing and molecular modeling; graphing and plotting; pharmaceutical chemistry; statistics, quality control, and equation solving; analytical and environmental chemistry; and scientific word processing and utilities. American Chemical Society, 1155 Sixteenth St., NW, Washington, DC 20036.

Migrandy Corp. presented information on its capabilities in the manufacture and rebuilding of screws, barrels, and components for injection molding and extrusion processes. The firm uses 4140 steel and other steels and alloys to manufacture screws and barrels. It also hard-surfaces, straightens, machines, grinds, and polishes screws to "precision tolerances." The firm also provides screw modification, chrome plating, and barrel resurfacing, resleeving, and honing. Migrandy Corp., 6756 Cypress Dr., Merritt Island, FL 32952; (800) 327-0943 or (407) 459-0044; Fax (407) 459-2641.

Hartig densifying reclaim extruders are designed especially for the reclamation of low bulk density scrap. This line features two different diameter plasticizing screws--large and smaller--keyed together for easy removal. Battenfeld Blowmolding Machines, Inc., Hartig Extrusion Systems, 95 Fulton St., Boonton, NJ 07005; (201) 402-1000; Fax (201) 402-1424.

The firm also has a new "On Line" System--comprising a measuring head, spectrophotometer, and computer system--that permits continuous color measurement on a production line. For powders or pellets, the measuring head is mounted in a pressurized enclosure and measurements are obtained through a Lance M. Neward succeeded Henry J. Wojtaszek as President of the Society of Plastics Engineers during ceremonies at ANTEC '93, SPE's Annual Technical Conference, which took place May 9-14 in New Orleans. They and SPE's new Executive Director, Gene De Michele, were among the 4762 attendees at the event, which featured 664 technical papers. Some 140 companies, organizations, and institutions participated in the ANTEC Exhibition at the New Orleans Convention Center, and the meeting was augmented by plenary speakers, special sessions, and SPE's seminar program.

Also highlighted was Kobelco's Hyper KTX high performance twin screw extruder. Among its features are extra high speed, extra high torque, deep-channel, a double-flighted thread type screw, many types of screw segments for various mixing and extruding functions, and many types of barrels for various mixing and extruding functions. Kobelco Stewart Bolling Inc., 1600 Terex Rd., Hudson, OH 44236; Cleveland (216) 656-3111; Akron (216) 655-3111.

Rapid Product Development MTS Systems Corp., Sintech Division, highlighted its "Test Works for Windows" materials testing software package, configurable for most ASTM, ISO, and DIN tests. The software features a Virtual Control Panel, which permits users to create their testing environment, and a built-in calculations library for commonly used mechanical properties. The package also has a material reference database option that compares test results with materials specifications created by the user, and flags deviations; a trend and histogram option that permits creation of SQC/SPC statistical charts; and a query function that permits search and sorting of specific test data according to various criteria. MTS Systems Corp., Sintech Division, P.O. Box 14226, Research Triangle Park, NC 277094226; (919) 677-1610; Fax (919) 677-2480.

Intec's on-line defect detection systems incorporate real-time alarm and reporting. System 3000, for web widths up to 60 inches wide, uses a combination of solid-state technology and a patented twinlaser scanner. Intec Corp., One Trefoil Dr., Trumbull, CT 06611; (203) 268-8000; Fax (203) 2682538.

Some 140 exhibitors, including companies, universities, and not-for-profit institutions, took part in the ANTEC '93 Exhibition. Following is a summary of the products and services exhibited at the show: Millipore, Waters Chromatography Division, exhibited its 150CV GPC Viscometry System. The instrument can be used to characterize molecular weights of various types of resins; it also provides information concerning intrinsic viscosity and distribution of molecular weights. Also featured was the firm's LC Transform FTIR interface module. Millipore, Waters Chromatography Division, 34 Maple St., Milford, MA 01757; (508) 478-2000; Fax (508) 478-5839.

At the annual business meeting and luncheon on Monday, May 10, outgoing President Wojtaszek recalled that his theme of "Focus" meant choosing as goals the resolution of important issues that have been facing SPE for some time. Of the eight goals achieved, he emphasized two--certification and establishment of a non-North American office. A plan, timetable, and budget for certification have been proposed, and the Executive Committee has approved the establishment of a Brussels office. Mr. Wojtaszek also noted that the Capital Fund goal of $150, 000 was oversubscribed by at least $10,000, and that in a very difficult economic climate, SPE has maintained its membership

level and finished the year with a small budget surplus.

Husky highlighted its hot runner systems for small part applications. The company offers small pitch capability in a variety of gating methods, including a standard hot tip nozzle, with a modified support ring, grouped in clusters of four to eight; the multiprobe nozzle, a single housing with a number of hot tips that can gate up to four parts; and the edge gate, which provides a means of reducing mold size by gating multiple parts from one housing. Husky Injection Molding Systems Ltd., 530 Queen St. South, Bolton, Ontario, Canada L7E 5S5; (416) 951-5000; Fax (416) 857-4692.

The final speaker, James Feene, president and treasurer of Windmoeller & Hoelscher, addressing changing patterns of global competition, discussed the trend toward fewer suppliers, high demands for resin and film, and the "profound effects of environmental and packaging regulations." He added that machine builders "are working hard to really understand our customers' needs."

Battenfeld Blowmolding Machines, Inc.'s Hartig Extrusion Systems offers extruders in sizes ranging from 3/4-inch to 15-inch screw diameters, and in standard as well as custom configurations. All are equipped with components as required to meet a specific production requirement. instrument drift" during use. A screen prompt notifies the user when updated calibration is necessary. To facilitate measurement of various sample sizes, the instrument is available with sample apertures ranging from 4 to 25 mm; it also has a software-driven motorized port for "global measurement."

Copyright 1993 Gale, Cengage Learning. All rights reserved.

Arizona Instrument's Computrac TMX moisture analyzer provides low level moisture analysis in minutes. The instrument does not require glassware or toxic reagents and is simple to operate. Even with small sample sizes, the TMX provides accurate readings. For very low moisture samples, the instrument's 100-g capacity ensures continued accuracy and representative moisture. Arizona Instrument Corp., 1100 E. University Dr., P.O. Box 1930, Tempe, AZ 85280; (602) 731-3400 or (800) 528-7411; Fax (602) 731-3434.

D&S Data Resources, Inc./Plaspec offers the Plaspec on-line database, accessed via computer and modem through a local telephone line. Updated daily, Plaspec helps design and manufacturing engineers select materials by providing all the pertinent engineering and processing information in a format that is easy to use and read. D&S Data Resources, Inc./Plaspec, P.O. Box H, Yardley, PA 19067; (215) 428-1060 or (800) 743-1060.

GP:50 New York Ltd. offered literature on its line of melt pressure transducers and transmitters, which are based on the proven bonded strain gage principle successfully utilized in thousands of applications. These units blend the latest in integrated circuit technology with standard 4-arm bridge circuitry. GP:50 New York Ltd., P.O. Box 805, 2770 Long Rd., Grand Island, NY 14072; (716) 773-9300; Fax (716) 773-5019.

Dynatup demonstrated how its Speciment Feeder System provides an instrumented impact test system that requires minimal operator assistance. The system utilizes the successful integration of a specimen feeder device, a Model 8250 impact test machine, an environmental chamber, and a Model 830-SF data acquisition system. The company also introduced an electronic torque tool, the IzoTorque, for measuring Izod specimen clamping torques. Dynatup/General Research Corp., 5383 Hollister Ave., Santa Barbara, CA 93111; (805) 681-8825; Fax (805) 964-2914.

American Leistritz Extruder Corp. operated its Micro-18 mm twin screw compounding system, which is intended for use in laboratory and medical applications where process throughputs are lower than feasible with conventional larger machines. Throughputs are generally in the 1 to 15 lbs/hr range.

The unit may be operated in any or all of the major twin screw compounding modes--co-rotating intermeshing, counter-rotating intermeshing, and counter-rotating non-intermeshing. The company showed the system tied into its new Extrusion Monitor and Control System. American Leistritz Extruder Corp., 169 Meister Ave., Somerville, NJ 08876; (908) 685-2333; Fax (908) 685-0247.

Atlas Electric Devices Co. provided literature on its Ci3000 xenon exposure instrument, which provides sophisticated control and simple operation. The instrument is offered in both Fade-Ometer and Weather-Ometer models to meet international industry requirements for lightfastness and weathering testing. Atlas Electric Devices Co., 4114 North Ravenswood Ave., Chicago, IL 60613; (312) 327-4520; Fax (312) 327-5787.

APV Chemical Machinery, Inc.'s Industrial Extruder Division has designed twin screw extruders to cover all mixing needs for low torque applications in the chemical industry, through established thermoplastic compounding and powder coating processes, to the latest techniques for advanced polymers and resins. APV can supply complete process lines, from raw material in, to packaged product out. APV Chemical Machinery Inc., 1000 Hess St., Saginaw, MI 48601; (517) 752-4121; Fax (517) 752-6037 or (517) 752-1060.

Haake demonstrated its Rheocord System, which includes its Computer-controlled torque rheometer Rheocord90. Information was also provided on Haake's Rheomix mixers, including open and low intensive mixers; internal, intensive mixers; closed, high-intensive mixers; and accessories and special mixer versions. Haake, 53 West Century Rd., Paramus, NJ 07652; (201) 265-7865.

An Extrusion Perspective Also highlighted by Brabender was its Auto-Grader machine system, which continuously determines rheological characteristics such as viscosity, shear rate, shear stress, and flow exponent. From these values, the system automatically calculates the melt flow index. C.W. Brabender Instruments, Inc., 50 East Wesley St., P.O. Box 2127, South Hackensack, NJ 07606; (201) 343-8425; Fax (201) 3430608.

Hanser Gardner Publications offered information on its publications, including reference books and texts on plastics engineering, processing (extrusion, injection molding, and blow molding), polymer science, and materials science. Hanser Gardner, 6600 Clough Pike, Cincinnati, OH 45244-4090; (800) 950-8977 or (513) 527-8977; Fax (513) 527-8950.

Daniel Pearce, president of Technical Compounding Services, Inc., addressed converters' responses to pricing pressures and decreasing development times, often through consolidation and interpolymer substitution. Advances in olefin polymers were said by Kurt Swagger, R&D director, Polyolefins & Elastomers R&D, Dow Plastics, to be driven by concerns about recyclability, source reduction, demands for lower-cost polymers, and decreasing development times and life cycles.

Swagger stressed that a key Gated Community Homes Sale Georgetown DC driving force is the manipulation of molecular architecture--or rearranging simple monomers to achieve higher properties without the expense of new polymer chemistries. Dow's new Insite technology is one example of such manipulative techniques.

Among the forum's other speakers, Chan I. Chung, professor, Rensselaer Polytechnic Institute, in a presentation entitled "Screw Design for Managers," described the extruder's overall functions in the

context of the equipment's mechanisms, polymer properties, and computer extrusion programs.

Finally, Kayeness introduced the smart melt pressure transducer option (Smartran) for its Galaxy series of capillary rheometers. The Smartran option compensates for nonlinearities in the pressure response for both pressure level and temperature. This compensation results in more accurate pressure measurements and therefore more accurate viscosity measurements. Smartran is available on all Galaxy IV and V capillary rheometers and can be retrofit to other Kayeness capillary rheometers. Kayeness Inc., 115 Thousand Oaks Blvd., Suite 101, P.O. Box 709, Morgantown, PA 19543; (215) 286-7555; Fax (215) 286-9396.

Hunkar Laboratories showed how its CIM-III, a third-generation factory management system, is a practical development tool. The system is aimed at improving machine capability, process stability, consistency of quality, downtime, organization bottlenecks, and more. Hunkar Laboratories Inc., 7007 Valley Ave., Cincinnati, OH 45244; (513) 272-1010; Fax (513) 272-0013.

Bohlin Instruments, Inc.'s CSM is a controlled stress rheometer specifically designed to provide the most sensitive rheological measurements on polymer melts. A choice of several software measuring programs may be tailored to each user's individual needs, including creep and recovery, oscillation, and stress viscometry.

Exhibitors Donald L. Hunston of the National Institute of Standards and Technology said that the challenge in the processing of thermoset composites is to convert high-performance composites for the aerospace industry into cost-performance composites for industrial applications. He contrasted the Automobile Composites Consortium's goal of five minutes to manufacture the front of a Ford Escort with the one to four days typically required to manufacture an aerospace part, and because fabrication accounts for 72% of the cost of the latter, traditional processing methods are not being used optimally.