MAY 7-11

UB/TIB Hannover112 852 092 I m

CONTENTS

VOLUME I—PROCESSINGEXTRUSION DIVISION

Heat Sealing Linear Ethylene Plastomers to Ionomers or LLDPEs 2R. W. Halle, D. S. Davis, Exxon Chemical CompanyA Nonlinear Viscoelastic Creep Model 14J. L. Rand, Winzen Engineering, Inc.New Materials for Heavy Duty Packaging Applications—For Conventionaland High Stalk Extrusion 20J. J. Wooster, B. A. Cobler, The Dow Chemical CompanyBarrier Screw Considerations for Cast Film and Extrusion Coating 25E. L. Steward, Davis-StandardDesign Considerations for Concentric Mandrel and Stackable Coextrusion Blown Film Dies 32W. W. Bode, Battenfeld-Gloucester EngineeringOptimal Design of Polymer Sheeting Dies 42D. E. Smith, D. A. Tortorelli, C. L. T\icker III, University of Illinois at Urbana-ChampaignExtrusion of Fluoropolymers: Effect of the Polymer/Metal Interfacein the Die on Onset of the Unstable Melt Flow 47F. Driver, A. P. Plochocki, S. I. Kogan, Polymer PLUS Lab and Stevens Institute of TechnologyReplacing Choker Bars by Flexible Membranes in Flat Sheet Dies 51H. Gross, Kunststoff-VerfahrenstechnikThermal Effects in Co-Extrusion of Polymer Melts 58A. Torres, A. Hrymak, J. Vlachopoulos, McMaster UniversityEffect of Die Geometry on Flow Kinematics in Extrusion Dies 65R. Shanker, R. Ramanathan, The Dow Chemical CompanyCoextrusion Layer Thickness Variation—Effect of Polymer Viscoelasticity on Layer Uniformity 69J. Dooley, K. Hughes, The Dow Chemical CompanyOptimizing Extruder Drive Selection—A Review of the Factors Involved 76D. C. Lounsbury, A. G. Karafilidis, Davis-StandardThe Effect of Metal Surface Roughness on the Frictional Properties of Resins 81I. Klein, R. J. Klein, Scientific Process and Research, Inc.New Concept to Run Thin Finn with Outstanding Surface Quality through a Polishing Stack 88H. Gross, Kunststoff-VerfahrenstechnikMelting Mechanisms in ZSK Extruders 92J. Curry, Werner & Pfleiderer CorporationEffects of Polypropylene Crystallinity on Extrusion 98C. Y. Cheng, Exxon Chemical Company

* Comparative Study of Mixing in Twin Screw Extruders 108P. J. Gramann, A. C. Rios, T. A. Osswald, Polymer Processing Research Group

•Flow Field Analysis of a Multi-Cut Transfer Mix 113T. Li, I. Manas-Zloczower, Case Western Reserve University

•Evaluation of the Mixing Process in a Transfermix Extruder 119W. Michaeli, U. Meiertoberens, Institut fur Kunststoffverarbeitung

•Flow and Mixing Analysis of Highly Viscous Fluids in a Wavy Wall Channel 125S. Zerafati, D. Bigio, University of Maryland

•Chaotic Mixing in the Kenics Static Mixer 130F. H. Ling, High-Technology Corporation

•Present in a joint session.

ANTEC '95 / ix

The Use of "On-Line Optical Microscopy" for Monitoring Compounding andOther Polymer Processing Operations 136D.-W. Yu, M. Esseghir, C. G. Gogos, Polymer Processing InstituteAn Experimental Comparison of Heat Removal in Water orAir Cooled Cast Aluminum Extruder Barrel Coolers 145J. L. Radovich, Jr., Davis-StandardVelocity Measurements in the Nip Region of a Co-RotatingTwin-Screw Extruder Using Laser Doppler Anemometry 150M. V. Karwe, V. Sernas, Rutgers—The State University of New JerseyExtruder Temperature Control with Adaptive Reset 155W. A. Kramer, Davis-StandardExperimental Determination of Heat Transfer Coefficient in Blown Film Process 162G. Nagarajan, G. A. Campbell, Clarkson UniversityEffects of Fluoropolymers on LLDPE Processing: Some Quantitative Aspects 167K. C. Xing, H. P. Schreiber, Ecole Polytechnique de MontrealThe Determination of Polymer Additive Effects in a Spherilene Process HDPEMatrix upon Water Carry Over in Water Quenched, Cast Film Extrusion 171T. J. Cowell, C. B. Brunner III, Himont USA, Inc.Interfacial Instability Phenomena in Blown Film Coextrusion of Polyethylene Resins 176J. Perdikoulias, Brampton EngineeringC. Tzoganakis, University of WaterlooInvestigation of Blown Film Extrusion Using the Laser Doppler Velocimetry 181W. Michaeli, G. Schmitz, Institutfur KunststoffverarbeitungNumerical Simulation of Viscoelastic Polymer Flow—Effect of Secondary Flows on Multilayer Coextrusion 188L. Dietsche, J. Dooley, The Dow Chemical CompanyA Nonisothermal Finite Difference Analysis of the Flow andHeat Transfer in a Co-Rotating Twin Screw Extruder 194R. V. Chiruvella, Y. Jaluria, T. Sastrohartono, Rutgers—The State University of New JerseyFluid Flow and Particle Trajectories in Single Screw Pumps and Extruders 201G. A. Campbell, D. Hunt, N. Dontula, S. Dunn, Clarkson UniversityModels of Flow and Experimental Studies on a Composite-ModularList/Buss Kokneter and Crosshead Screw Extruder 208M.-Y. Lyu, J. L. White, University of AkronViscoelastic Effects in Stratified Bicomponent Extrusion 217E. Mitsoulis, G. Barakos, University of OttawaNumerical Analysis of the Thermal Mixing Effectsof an Energy Transfer (ET) Screw Section 222S. A. Somers, M. A. Spalding, J. Dooley, K. S. Hyun, Dow Plastics

*The Working Domain in Reactive Extrusion: The Effect of Pre-Polymerisation 232A. J. van der Goot, S. A. Klaassens, L. P. B. M. Janssen, University of Groningen

•IR Temperature Measurement in Extruders 237C. Maier, GE Plastics

•Studies of Thermal/Peroxide Induced Degradation and Maleation of Polypropylenein a JSW Modular Twin Screw Extruder: Influence of Direction ofScrew Rotation and Screw Configuration 242B. Kim, J. L. White, University of Akron

•The Multi-Screw Extruder "MSE" for Nylon 6 Devolatilizationand Post Condensation with PET 250U. Barth, Berstorff GmbHG. Scheel, M. Pahl, University of PaderbornCoefficients of Dynamic Friction and the Mechanical MeltingMechanism for Vinylidene Chloride Copolymers 260M. A. Spalding, K. S. Hyun, D. E. Kirkpatrick, S. R. Jenkins, Dow PlasticsSolids Conveying in Low Friction and Starve Fed Extruders 268G. A. Campbell, G. Nagarajan, Clarkson UniversityJ. D. Small, Eastman Performance PlasticsJ. Staples, Eastman Chemical ResearchPredicting Channel Fill Fractions in Single and Non-Intermeshing Twin Screw Extruders 279R. E. Jerman, Rohm and Haas Co.

*Present in a joint session.

X/ANTEC '95

Developing Melt Temperature in Extruders Including Heat Conduction in the Screw 286S. J. Derezinski, Eastman Kodak CompanyElimination of a Restriction at the Entrance of Barrier Flighted Extruder Screw Sections 293K. S. Hyun, M. A. Spalding, J. R. Powers, Dow PlasticsKneading Block Melting Study 302H. T. Chan, D. A. DuFresne, 3M Engineering Systems and TechnologyMixing in Corotating Intermeshing Twin-Screw Extruders with FarrelAsymmetric Modular Mixing Elements (FAMME) 312E. L. Canedo, L. N. Valsamis, Farrel CorporationA Study of the Blending Process in a JSW Modular Co-Rotating/Counter-RotatingTwin Screw Extruder at Different Barrel Temperatures 321J. W. Cho, J. L. White, University of AkronThe Influence of Plasticizer on Extruded Thermoplastic Starch 328M. C. van der Burgt, M. E. van der Woude, L. P. B. M. Janssen, University of GroningenScaleup of Dispersive Mixing Cylindrical Compounders in CRNI Twin Screw Extruders 333C. G. Hagberg, Welding Engineers, Inc.D. Bigio, M. Shah, University of MarylandStudy on the Visual and Dynamic Extrusion Process in the Co-Rotating IntermeshingTwin Screw Extruder—Focus on the Solid Conveying Phenomena and Mechanism 340X. Geng, Q. Yu, Beijing University of Chemical Technology

•Homogeneous Ethylene/a-Olefin Copolymers with Long Chain Branching:Evaluation of the Basic Material Properties Controlling Processing Behavior 1122Y. S. Kim, C. I. Chung, Rensselaer Polytechnic InstituteS. Y. Lai, K. S. Hyung, The Dow Chemical Company

•Motion Analysis of Development of Wall Slip duringDie Flow of Concentrated Suspensions 1130D. M. Kalyon, H. Gokturk, P. Yaras, B. K. Aral, Stevens Institute of Technology

•Rheology of Reactive Polystyrene/Ethylene-Propylene Rubber Blends 1135C. E. Scott, Massachusetts Institute of TechnologyC. W. Macosko, University of Minnesota

•Extensive Rheological and Optical Quality Control in Polymer Production and Processing 1140D. Brunner, B. Poltersdorf, Brabender® OHG

•A Non-Newtonian Simulation Method for Moving Boundary Problems 1146B. A. Davis, T. A. Osswald, University of Wisconsin-Madison

•Study of Breakup Mechanisms in Cavity Flow 1988J. Kang, D. I. Bigio, T. G. Smith, University of Maryland

•Rheology-Driven Mixing Mechanisms in TSMEE Kneading Blocks:Dispersion Rates and Morphology Stabilization 1994M. Esseghir, D.-W. Yu, C. G. Gogos, Polymer Processing Institute

•Co-Continuity and Phase Inversion in HDPE/PS Blends:The Role of Interfacial Modification 2001D. Bourry, B. D. Favis, Ecole Polytechnique de Montreal

•Morphology Development of Polymer Blends in a TangentialCounter-Rotating Twin Screw Extruder 2010L.-Y. Yang, D. Bigio, T. G. Smith, University of Maryland

•Morphology and Mixing in Twin-Screw Extruders 2015C. Maier, GE PlasticsM. Lambla, K. Ilham, EAHP-ULP

•Blend Morphology Development during Compounding in a Twin-Screw Extruder 2020M. A. Huneault, M. F. Champagne, L. E. Daigneault, M. M. Dumoulin,

National Research Council of Canada

INJECTION MOLDING DIVISION

An Analysis of Pre-Consumer Regrind in an Injection Molded Thermoplastic Part 348T. Scriven, S. Sykes, Western Washington UniversityNew Rigid Vinyl Compound Molding Technology 351J. W. Summers, P. Toyoda, S. Weir, C. Beal, C. Toensing, The Geon Company

•Present in a joint session.

ANTEC '95 / x i

Critical Shear Rate for the Injection Molding of Polycarbonate,Polystyrene, and Styrene Acrylonitrile 357M. Serrano, J. Little, The Dow Chemical CompanyT. Chilcoat, Ohio UniversityCorrelating Rheology, Molding Conditions and Residual Stressin Flame Retarded Polycarbonate 366S. R. Seibel, E. Papazoglou, FMC CorporationAdvantages of High Melt Flow Rate Ignition ResistantPolycarbonate versus IR PC/ABS Blends 371S. A. Ogoe, P. F. Grelle, T. J. Watkins, P. J. Masloski, The Dow Chemical CompanyA Novel Barrel Temperature Control Method Based on Fuzzy-PID for Injection Molding 378P. J. Wang, C. H. Chang, Y. L. Lin, National Tsing Hua UniversityProcess Characterization of a Fluorinated Thermoplastic Terpolymer Using aMulti-Channel High Speed Data Acquisition System 383R. W. Peterson, J. H. Horns, 3MCrystallization Modeling for a Crystallizable Polymer during theOptimization of Injection Molding Cooling Process 389B. Xie, D. I. Bigio, University of MarylandEstimation of Melt Temperatures and Part Weight in Injection Moldingfrom Cavity Surface Temperature Measurements 394A. E. Varela, W. I. Patterson, M. R. Kamal, McGill UniversityIn-situ Real Time Monitoring of the Transient Melt Temperatures inthe Nozzle during Injection Molding via IR Pyrometry 399V. N. Reddy, Ford Motor CompanyN. R. Schott, University of Massachusetts at LowellMicrocellular Foaming of Polypropylene Containing Low GlassTransition Rubber Particles in an Injection Molding Process 406C. Wang, K. Cox, G. A. Campbell, Clarkson UniversityA Study of the Effect of Gate Design on Holding Time by Theoretical Calculations,Computer Flow Simulation and Experimentation 411V. Miranda, F. S. Lai, University of Massachusetts at LowellUsing Predetermined Time Standards for Secondary Quoting 417R. J. Peret, Nypro Inc.Innovative Gating Techniques and New Resin Technology for Thinwall Injection Molding 424J. Robertson, Husky Injection Molding SystemsThin Wall Molding: Differences in Processing over Standard Injection Molding 430J. Fassett, GE Plastics

•Predicting Clamp Force on Toggle Type Molding Machines by Using a Math Model 4238A. W. Cappella

•Predicting the Cooling Time of an Injection Molded Part 4242K. M. Boell, The Pennsylvania State University-Erie, The Behrend College

•The Effect of Transient Flow on Weld Line Strength and Visibility 4247T. Titchner, The Pennsylvania State University-Erie, The Behrend College

•The Effects of Moisture on the Viscosity of Polycarbonate 4252P. J. Marchioni, Pennsylvania College of Technology

•Flow Rate vs. Percentage Regrind 4255E. T. Murray, Pennsylvania College of Technology

•The Effects of Base Resin, Colorant and Annealing Time on the Assembly andUnscrewing of Tamper Evident Caps 4258G. L. Shaffer, Pennsylvania College of Technology

•Automated Injection Molded Part Handling: A Case Study 4263M. J. Corvino, University of Massachusetts at Lowell

•Thin-Walled Injection Molding Study: Effect of MeltTemperature on Structure-Property Relationships 4267T. A. Miller, Drexel UniversityInjection Blow Molding of High Nitrile Resins 436P. R. Lund, BP ChemicalsPowder Injection Molding—High Precision Parts Using the Hot Runner Technology 445W. Michaeli, J. Knothe, Institut fur Kunststoffverarbeitung

*Present in a joint session.

ANTEC '95/xii

Application of Simultaneous Composite Injection Molding 451H. Hamada, K. Futamata, Kyoto Institute of TechnologyS. Yamauchi, Matsushita Electric Works, Ltd.K. Tomari, Osaka Municipal Technical Research InstituteA. Yokoyama, Mie UniversityNumerical Simulation of the Sandwich Injection Moulding Process 456G. Schlatter, A. Davidoff, CisigraphG. Schlatter, J. F. Agassant, M. Vincent, C.E.M.E.F.SCORIM—Principles, Capabilities and Applications 461E. M. Grossman, Scortec, Inc.Predicting Warpage of Injection Molded Fiber-Reinforced Plastics 478R. Zheng, N. McCaffrey, K. Winch, H. Yu, P. Kennedy, Moldflow Pty. Ltd.The Effects of Boundary Conditions on the Dimensional Changes andResidual Stresses in Injection-Molded Polycarbonate Parts 484W C. Bushko, V. K. Stokes, GE Corporate Research and DevelopmentEvaluating a Plastic's Processability for Injection Molding: Packability vs. Viscosity 491J. W. Bozzelli, Injection Molding SolutionsA Study of Tooling Modifications Used to Improve WeldLine Properties of Polymeric Materials 495B. K. Pour, T. D. Sinner, Hoechst-Celanese Corporation

•A Mechanism for Coreshift in Injection Molded Containers 502T. A. Shepard, M. O'Connell, K. Powell, S. Charwinsky, Becton Dickinson Research Center

• Design of Experiments for the Injection Molding Process(Qualifying Materials to Produce Equivalent Parts) 506P. J. Meheran, P. J. Blyskal, PreSource Technologies, Inc.

•Anisotropic Impact Properties of Injection-Molded Polypropylene 510B. Cao, T. Sullivan, S. Charwinsky, H. Sugg, Becton Dickinson Research Center

• Applications of Rheological Properties in a QualityAssurance Program for Medical Products 515S. B. Driscoll, P. K. Nanavaty, S. P. Pinto, University of Massachusetts at LowellHigh Gas Barrier Container Using Co-Injection Molding Methods 520T. Seki, T. Katoh, Toppan Printing Co., Ltd.S. Kubota, Nissei Plastic Industrial Co., Ltd.A High Pressure Gas Proportional Controller for Gas-Assisted Injection Molding 525E. Lasch, D. Csongor, DMX Inc.V. Kapila, N. R. Schott, University of Massachusetts at LowellCase Studies of the Gas-Assisted Injection Molded PartsDesigned with a Gas Channel of Different Geometry 530S. C. Chen, K. S. Hsu, Chung Yuan UniversityW. L. Liu, Y. C. Chen, K. K. Ho, Materials Research Laboratories of ITRISystematic Designing of Gas Injection Moulded Parts 534Ch. Rennefeld, H. Potente, University of PaderbornOvercoming Process Control Challenges of Gas-Assist Injection Molding 540C. L. Clark, R. Williams, GE PlasticsJ. S. Dixon, S. Bi, Advanced Pressure ProductsPolymer Flow Length Simulation during Injection Mold Filling 546M. Buchmann, R. P. Theriault, T. A. Osswald, University of Wisconsin-MadisonThe Computer-Aided Cycle Time Optimization 551K. H. Lee, H. H. Tseng, F. S. Lai, University of Massachusetts at LowellAutomated Selection of Gate Location Based on Desired Quality of Injection Molded Part 554B. H. Lee, B. H. Kim, University of Massachusetts at AmherstAdvanced Graphics for Injection Molding Simulation 561G. Batch, 3MBenchmarking the Injection Molding Process for Continuous Improvement 570A. Bernhardt, Plastics & Computer Inc.N. Kassa, ConsultantInjection Molding Manufacturing Productivity—Machine Setup 576A. R. Bhogesara, R. E. Nunn, S. P. McCarthy, University of Massachusetts at LowellNew Developments in Multi-Material Machine Design 581V. E. Butera, J. Elward, Husky Injection Molding Systems

•Present in a joint session.

ANTEC '95/xiii

The Effects of Vented and Non-Vented Plastication Systems on Color and Specific Gravity 586C. Brown, M. Vander Kooi, S. Ramrattan, Western Michigan UniversityIn Search of a Non-Return Valve That Does 590P. V. Engelmann, M. Vander Kooi, Western Michigan UniversityDynamic Behavior of Various Non-Return Valves in Injection Molding Machines 595A. I. Isayev, C. Zook, Y. Zhang, R. J. Scavuzzo, University of AkronM. Teeple, S. Knoop, Van Dorn-Demag Plastic Machinery CompanyEffect of Rubber Particle Agglomeration Phenomena in Acrylonitrile-Butadiene-Styrene (ABS)Polymers on Molded Surface Appearance 602M. C. O. Chang, R. L. Nemeth, MonsantoStatistical Considerations for Three-Dimensional Fiber Orientation Distribution inInjection-Molded, Short Fiber Reinforced Transparent Thermoplastics 608B. Lian, A. Nothe, J. Ladewig, J. J. McGrath, Michigan State UniversityThe Coupling of Crystallization Kinetics and Fountain Flow in Simulationof the Injection Molding of Crystalline Polymers 613M. R. Kamal, I. Ansari, McGill UniversityEffect of Molding Conditions on Properties of Rubber Filled Polystyrene 619G. A. Campbell, H. Devanathan, Clarkson UniversityInfrared Temperature Measurements-Measured and CalculatedTemperature Profiles in the Cavity of a Mold 630R. Bluhm, W. Michaeli, Institut fiir KunststoffverarbeitungEvaluation of the Fill-to-Pack Transfer Method: Position vs. Pressure 637Q. Zou, G. Ari, Bowles Fluidics CorporationA Novel Approach to Determine Melt Temperature Profiles in Injection Molding 642N. Dontula, G. A. Campbell, Clarkson UniversityJ. J. Wenskus, Eastman Kodak CompanyIn-Line Pressure and Infrared Temperature Measurementsfor Injection Moulding Process Control 647R. G. Speight, P. D. Coates, University of BradfordE. P. Yazbak, Dynisco Instruments, Inc.Advanced Methods for Monitoring Injection Molding Processes II: Multicavity Molds 652B. V. Souder, B. L. Whitehall, J. E. Davis, United Technologies Research CenterOptimisation of the Injection Moulding Process with Multi-Cavity Moulds 659Th. Wenniges, H. Potente, University of PaderbornProcess Control for Rotational Moulding of Plastics 663R. J. Crawford, P. J. Nugent, A. Spence, The Queen's UniversityOptimization Strategies for Injection Molding 668L. S. Turng, H. H. Chiang, AC TechnologyJ. F. Stevenson, GenCorp ResearchExperimental Verification of C-Mold Fiber Orientation and Modulus Predictions 674P. H. Foss, General Motors Research and Development CenterH. H. Chiang, AC TechnologyL. P. Inzinna, GE Corporate Research and DevelopmentC. L. Tucker III, K. F. Heitzmann, University of IllinoisVerification Study on the Fiber Orientation Software 679G. Suh, C. K. \bon, S. McCarthy, University of Massachusetts at LowellModeling and Simulation of Thermally Induced Stressand Warpage in Injection Molded Thermoplastics 684S.-J. Liu, Chang Gung College of Medicine and TechnologyJ. X. Rietveld, University of Wisconsin-MadisonComputer-Aided Design Methodology for Mold Cooling 702H. A. Hadim, K. Xu, Stevens Institute of TechnologyD. E. Ferguson, 3M Corporate Molding Technology CenterInfluence of Mesh and Control Parameters on CAE Software for Injection Molding 707M. R. Gadbois, T. E. Burton, L. J. HagemanPrediction of Injection Molded Plaque Properties UsingArtificial Neural Networks and Flow Simulation 714B. H. Kim, T. W. Hwang, S. Farooqi, S. Witkus, University of Massachusetts at AmherstHeterogeneous Structures through Thickness Direction of Polymer Alloy Injection Moldings 722H. Hamada, H. Tsunasawa, Kyoto Institute of TechnologyAn Examination of Assumptions Underlying the State ofthe Art in Injection Molding Modeling 728D. C. Guell, P. M. Lovalenti, Los Alamos National Laboratory

xiv/ANTEC '95

Physically-Based Model of Thermoplastics Injection Molding Dynamics 733M. Rafizadeh, W. I. Patterson, M. R. Kamal, McGill University

•Precision Molding of Fiber Array Connectors: What Does It Take? 1372G. J. Shevchuk, M. A. Shahid, AT&T Bell Labs

•A Knowledge-Based Synthesis System for Chip Encapsulation 1377Y. J. Huh, S. Han, K. K. Wang, Cornell University

•Continuum Percolation in Short Fiber Composites:Monte Carlo Simulations, Cluster Statistics, and Fractal Growth 1382A. A. Dani, A. A. Ogale, Clemson University

•Microstructure and Properties of Electrically Conductive Fiber Composites 1387M. E. Weber, M. R. Kamal, McGill University

•Application of Scanning Acoustic Microscopy to Injection MoldedSemi-Crystalline Thermoplastics 2906T. Kuriyama, I. Narisawa, Yamagata UniversityT. Abe, Government Industrial Research and Institute

•Residual Stresses and Birefringence in Injection Molded Disks 2911G. D. Shyu, A. I. Isayev, University of Akron

•The Use of Photo-Elastic Strain Analysis in Injection Molding 2918D. G. LeGrand, G. Seeger, B. Ahrens, GE PlasticsC. Uebrueck, D. Mayo, Ford Motor Company

•Temperature and Molecular Weight Dependence of Polypropylene/PolystyreneInterfacial Tension from Pendant Drop Analysis 2922N. R. Demarquette, Sao Paulo UniversityM. R. Kamal, R. A. Lai-Fook, McGill University

•Optimization of Injection Molding Conditions Using Thermal Analysis 2926M. K. Hutchins, H. C. Kim, LNP Engineering Plastics, Inc.

*Rheo-Kinetic Measurements for the Determination of Stress-Induced Crystallinityin Polyethylene Terephthalate 2932K. A. Narh, E. Roa, M. D. Saindon, C. Cohen, K. K. Wang, Cornell University

•Correlation of Material Properties to Processibility 2937S. Oak, R. Nordin, Feamold Inc.

•How to Verify Finite Element Analysis Results 2943P. Porcaro, Huron Plastics Group

•Use of Designed Experiments in Finite Element Flow Softwareto Validate the Process in an Injection Mold 2948C. J. Vitello, IVAC Corporation

•Thermo-Mechanical Finite Element Analysis and Design of ThermoplasticCantilever Snap-Fits 2953D. Neogi, P. Godbole, University of Massachusetts at Lowell

•Reducing Cycle Time in Designing Polymeric Products Using Computer Simulation 2958P. Krishnaswamy, N. D. Ghadiali, C. R. Miele, Battelle

•The Measurement of Practical Adhesion within Thermoplastic Olefins (TPOs) 2964R. A. Ryntz, A. McNeight, Ford Motor Company

•On the Study of Birefringence Structure in Injection andInjection-Compression Molded Disks 2973K. Yoon, Dankook University

•ISO 9000 with Continued Value Improvement 4014M. J. Gordon, Jr., Gordon & Associates

•ISO 9001: After Registration, Then What??? 4019L. A. McCullough-Leibfried, LNP Engineering Plastics, Inc.

•Quality Control Testing of Crystalline/Amorphous Alloys: Dynamic MechanicalAnalysis, Heat Distortion Temperature and Vicat Softening Point 4024J. J. Scobbo, P. L. Cometti, C. P. Strom, GE Plastics

•Keeping up with ISO-9000: How the 1994 Revision Affects You 4031R. J. Nichols

•Development of a Total Quality Co-Injection Molding Process 4036M. F. Martin, J. L. Parsons, Dow PlasticsL. Albrecht, Bemis Manufacturing Co.

•Present in a joint session.

ANTEC '95/XV

•The Practical Application of Design of Experiments inthe Total Quality Injection Molding Process 4041M. F. Martin, F. Bontumasi, Dow PlasticsG. Young, Saturn Corporation

•Closed Loop Quality Control for Injection Molding Based on Statistical Process Models 4046W. Michaeli, R. Vaculik, Institut fur Kunststqffverarbeitung

•Reprocessing of Recyclat—On-Line Prediction of Quality Attributes 4051W. Michaeli, R. Vaculik, R. Bluhm, Institut fur Kunststqffverarbeitung

•The Effect of Selected Variables on the Volume Resistivity of anElectrically Conductive Thermoplastic 4374G. L. Dreibelbis, The Pennsylvania State University-Erie, The Behrend College

•Modeling the Shear Dissipation along the Injection Screw duringInjection for Polystyrene 4377B. J. Piscitelli, The Pennsylvania State University-Erie, The Behrend College

• The Effects of Isothermal Molding on Powder Injection Molding 4381S. W. Woodward, K. M. Dasch, The Pennsylvania State University-Erie, The Behrend College

•Comparison of Mechanical Properties between Isothermal Molding andInjection Molding of Polystyrene 4384T. D. Shamp, The Pennsylvania State University-Erie, The Behrend College

•A Math Model for Estimating Screw Recovery Time on Injection Molding Machines 4389M. B. Allen, The Pennsylvania State University-Erie, The Behrend College

•Impact of Environmental Temperature and Humidity on Reject Rate in aPlastic Injection Molding Plant 4392R. V. Carter, Jr., The Pennsylvania State University-Erie, The Behrend College

•The Relationship between Flow Rate and Mechanical Properties forPolybutylene Terephthalate 4398C. D. Holliday, The Pennsylvania State University-ErieMulti-Component Injection Molding—Influence of Process Paramaterson the Adhesion of Rigid-Flexible Combinations 742W. Michaeli, S. Brinkmann, Institut fur KunststoffverarbeitungA Basic Study of Rib Geometry for Gas-Assisted Injection Molding 747S. Y. Yang, F. Z. Huang, National Taiwan UniversityExperimental Study of Simultaneous Co-Injection Moulding Process 760P. Somnuk, G. F. Smith, University of WarwickAnalytical Study of Thin-Wall Molding in Injection Molding Process 765S. Cha, H. H. Tseng, F. S. Lai, University of Massachusetts at LowellVirtual Molding: A Challenge to the Analysis Industry 768G. Engelstein, GR Technical ServicesMoisture Measurement in Injection Molding and Extrusion Processes 772N. J. Sparages, Panametrics, Inc.An Approximate Prediction of Entrance Loss for Power-Law and Viscoelastic Fluids 774M. Gupta, Michigan Technological UniversityC. A. Hieber, K. K. Wang, Cornell University

THERMOFORMING DIVISION

Concurrent Engineering: Using Vendors Wisely 780R. B. Freeman, Freetech Plastics, Inc.High Melt Strength Polypropylene for Large Part Thermoforming 783J. J. Morad, Himont USA, Inc.Evaluation of PET and Recycled PET as Replacements for a PETG Packaging Tray 788J. C. Griffin, Polaroid CorporationS. B. Driscoll, University of Massachusetts at LowellA Study of the Sagging of Styrenic Sheets Associated with the Thermoforming Process 794M. J. Stephenson, M. E. Ryan, State University of New York at BuffaloOptimum Analysis Method for Thermoforming Process by Numerical Approach 800H. Hamada, T. Okumura, E. Ohno, Kyoto Institute of TechnologyA. Yokoyama, Mie University

•Present in a joint session.

xn/ANTEC '95

State of the Art, One-Step Thermoformable EMI Shielding 805D. M. Yenni, Jr., 3MC. J. Oler, University of Wisconsin-MadisonRadiant Heat Transfer in Thermoforming 810J. L. Throne, Sherwood TechnologiesProduct Variability Associated with Continuous Sheet-Fed Thermoforming Operations 822M. J. Stephenson, M. E. Ryan, State University of New York at BuffaloL. J. Karadin, Firestone Synthetic Rubber & Latex CompanyP. Kaknes, Comet Products, Inc.

THERMOSET DIVISION

Application of the Cold-Runner-Technology for FreeFlowing Thermosetting Molding Compounds 832W. Michaeli, Th. Kloubert, Institut fur KunststqffverarbeitungMicromixing in Filled Reaction Injection Molded Composites 839S. Agarwal, G. A. Campbell, Center for Advanced Materials ProcessingTechnological Advancements in Thermoset Injection Molding 843S. M. Schultheis, P. Lipp, Krauss Maffei CorporationEliminating Waste in a Phenolic Environment 850D. O'Brien, Diemolding CorporationSintered Inserts for Molded Plastics 854H. A. TewsCurrent Developments in BMC Polyester Selection and Design 862L. E. Nunnery, Jr., Bulk Molding Compounds, Inc.Simulation of the Injection Molding of Thermosetting Polymers 868K. T. Nguyen, K. K. Kabanemi, D. M. Gao, National Research Council of CanadaSyntheses and Properties of Vinyl-Terminated Polyurethanes/AHylNovolac Resin AB Crosslinked Polymers 874W.-Y. Chiang, D.-M. Chang, Tatung Institute of TechnologyChemorheology of Highly Filled Epoxy Molding Compounds 879P. J. Halley, M. E. Mackay, The University of QueenslandStructural Resin Transfer Molding with Compression Process 886H. Hamada, N. Ikegawa, Z. Maekawa, Kyoto Institute of TechnologyThe Mechanical and Thermal Properties of Polycarbonate Modified Epoxy 892M.-S. Li, Y.-S. Li, C.-C. M. Ma, Y.-D. Wu, S.-C. Chang, National Tsing Hua UniversityEffects of Low-Profile Additives on Volume Shrinkage Characteristicsin the Cure of Unsaturated Polyester Resins 897Y.-J. Huang, C.-M. Liang, National Taiwan Institute of TechnologyThe Effect of Chemical Crosslinking on Properties of Segmented Polyurethane Elastomers 902Z. S. Petrovic, Pittsburg State UniversityJ. Budinski-Simendic, B. Mikovic, University ofNovi Sad

BLOW MOLDING DIVISION

Thickness Prediction in 3-D Blow Moulding Simulation 908B. Debbaut, B. Hocq, J.-M. Marchal, Polyflow S.A.Annular Swell in Multilayer Flow of Virgin and Recycled Polymers 913A. Garcia-Rejon, R. W. DiRaddo, F. A. Dube, National Research Council of CanadaNumerical Modelling for the Optimization of Industrial Blow Moulded Parts 919D. Laroche, J. F. Hetu, L. Pecora, R. W. DiRaddo, National Research Council of CanadaM. Grenier, D. Brougham, Wedco Inc.Modelling and Simulation of the Injection Stretch-Blow Molding Process 925K. Hartwig, W. Michaeli, Institut fur KunststqffverarbeitungSelf-Adjusting Parison Programming for Extrusion Blow Molding 930W. Michaeli, M. Franke, Institut fur KunststqffverarbeitungDesign of Spiral Mandrel Coextrusion Heads for Blow Molding 936J. Wortberg, University of EssenLarge Part Blow Molding Machine with Improved Color Change Capability 943H. Takatori, Y. Kanoh, Ube Industries, Ltd.L. Ferguson, GE PlasticsExtrusion Blow Molding of High Density Polyethylene-Poly(ethylene terephthalate) Blends 950G. Kumaravel, S. A. Jabarin, University of Toledo

ANTEC '

Properties of Elastomer Toughened PE/PETG Blends as Blow Moulding Resins 962J. F. T\ing, S. L. Moh, K. F. Liew, Standards and Industrial Research Institute of MalaysiaExtrusion Blow Molding High Gloss High Density Polyethylene Bottles 966J. J. Strebel, Quantum Chemical CompanyWall Thickness Gaging in the Blow Molding Industry 970M. Giannini, Arlington GroupA. de Chiara, Panametrics, Inc.Thermal Imaging—A Powerful Tool for Blow Molding and the Plastics Industry 973M. S. Mitchell, Constar International

MOLD MAKING & MOLD DESIGN DIVISION

Computer-Aided Process-Planning for Mold Making 978V. B. Gerdes, D. Webb, C. Chassapis, Stevens Institute of TechnologyAn Intelligent Mold Shop Database: Centralizing Informationto Gain Efficiency and Flexibility 983D. Webb, V. Gerdes, S. Manoochehri, C. Chassapis, Stevens Institute of TechnologyFeatured Based CAD Techniques in Mold Design 988A. F. Padalino, D-M-E CompanyOptimum Design of Process Conditions to MinimizeResidual Stresses in Injection-Molded Parts 991S. Kang, C. A. Hieber, K. K. Wang, Cornell UniversityInjection Molding Tooling by Three Dimensional Printing,a Desktop Manufacturing Process 997E. Sachs, E. Wylonis, M. Cima, S. Allen, S. Michaels, E. Sun,

H. Tang, H. Guo, Massachusetts Institute of TechnologyOptimum Runner Sizing for Hot Runner Applications 1006J. Duffy, KONA CorporationQuick Mold Change Systems for High Volume Stack Molds 1011H. Rozema, V. Travaglini, Tradesco Mold LimitedEliminating Thermocouples in Temperature Control Systems 1016T. P. Linehan, D-M-E CompanyChoosing the Correct Runnerless System 1023T. J. Hlavaty, D-M-E CompanyNew Alloys to Help Solve Mold Problems 1030F. T. Gerson, F. T. Gerson LimitedTechnical Advances in Mold Steels from the Far East 1035T. M. Schade, International Mold Steel, Inc.Copper-Alloy Molds Provide Thermal Advantages andShorter Cycle Time for Injection Molding 1040K. C. Apacki, ISORCA, Inc.A Brief Look at Size Change When Heat Treating Tool Steels 1046J. Fischer, Tools and TroubleshootingEjector Pins: Analysis of Optimum Materials and Treatments 1050G. Starkey, Progressive Components ID&L IncorporatedThe Future Is in Your Hands—A Model Program for the Training of Moldmakers 1057R. W. Sherman, Robert W. Sherman & AssociatesNew Methods of Tolerance Analysis for Plastic Molds 1062V. A. Braginsky, Technological Institute

•Improving Packing in Thin to Thick Molded Parts 4314M. Rydbom, The Pennsylvania State University-Erie, The Behrend College

•Injection Molding Study of Automotive Interior Trim Thermoplastic Resins 4319T. P. Jones, Drexel University

•Rapid Tooling for Compression Molding of a Thermoset 4324J. E. Plavcan, The Pennsylvania State University-Erie, The Behrend College

•Design of a Side-Injection Blow Mold 4328D. Woodring, Pennsylvania College of Technology

•Cost Comparison between Stereolithography and Computer Numerical ControlMachining for Rapid Commercializing 4332A. W. Marinov, The University of Pennsylvania-Erie

•Present in a joint session.

xviii/ANTEC '95

* A Study of the Melt Temperature Profile in an Extrusion Die 4336W. S. Armstrong, University of Massachusetts at Lowell

* A Comparison between Hot-Oil and Conventional MoldHeating for Rotational Molding 4342A.M. Krott, The Pennsylvania State University-Erie, The Behrend College

* Comparing the Predictions of Blow molding Software to the Wall Thicknessof the Actual Part after Processing 4347M. D. Rose, The Pennsylvania State University-Erie, The Behrend College

APPLIED RHEOLOGY SPECIAL INTEREST GROUP

Some Factors Affecting Capillary Rheometer Performance 1068M. L. Sentmanat, J. M. Dealy, McGill UniversityThe Extensional Viscosity of Polyolefins via Flow Visualization 1073R. Ramanathan, D. L. Headley, S. Y. Lai, The Dow Chemical CompanyMelt Elasticity Measurements—The Complement and Supplementto Melt Flow Measurements 1078B. Maxwell, The Maxwell Instrument CompanyElongational Viscosity of Polypropylene Melts 1080A. Pendse, J. R. Collier, Louisiana State UniversityPrecision in Linear Viscoelastic Property Measurement:Establishing a Protocol for Statistical Quality Control 1085P. C. Saucier, D. J. Obermiller, The Dow Chemical CompanyFlow Instabilities and Melt Fracture 1092S. J. Kurtz, Union Carbide CorporationSurface Melt Fracture Behavior of Linear Low-Density Polyethylene 1095D. G. Baird, Virginia Polytechnic Institute and State UniversityP. P. Tong, Mobil Chemical CompanyViscoelastically-Driven Instabilities in Polymer Processing 1101J. A. Byars, R. C. Armstrong, R. A. Brown, Massachusetts Institute of TechnologyG. H. McKinley, Harvard UniversityPolymer Melt Instability in Large Amplitude Oscillatory Shear between Sliding Plates 1106R. S. Jeyaseelan, P. K. Dhori, J. C. Slattery, Texas A&M UniversityA. J. Giacomin, University of Wisconsin-MadisonThe Melt Fracture Behaviour of Teflon® Resins in Capillary Extrusion 1111E. E. Rosenbaum, S. G. Hatzikiriakos, University of British ColumbiaC. W. Stewart, E. I. du Pont de Nemours & Co.Melt Flow and Instability of Polycarbonate and Its Blends 1116H. T. Pham, The Dow Chemical Company

•Homogeneous Ethylene/a-Olefin Copolymers with Long Chain Branching:Evaluation of the Basic Material Properties Controlling Processing Behavior 1122Y. S. Kim, C. I. Chung, Rensselaer Polytechnic InstituteS. Y. Lai, K. S. Hyung, The Dow Chemical Company

* Motion Analysis of Development of Wall Slip duringDie Flow of Concentrated Suspensions 1130D. M. Kalyon, H. Gokturk, P. Yaras, B. K. Aral, Stevens Institute of Technology

* Rheology of Reactive Polystyrene/Ethylene-Propylene Rubber Blends 1135C. E. Scott, Massachusetts Institute of TechnologyC. W. Macosko, University of Minnesota

•Extensive Rheological and Optical Quality Control in Polymer Production and Processing 1140D. Brunner, B. Poltersdorf, Brabender® OHG

* A Non-Newtonian Simulation Method for Moving Boundary Problems 1146B. A. Davis, T. A. Osswald, University of Wisconsin-MadisonBetter "On-Line" and Laboratory Rheometer Correlation 1152V. Morrow, Kayeness Inc.A New Rheological Method to Characterize Polypropylene Molecular Weight Distribution 1157F. Chambon, Exxon Chemical EuropeDetermination of MWD from Dynamic Viscosity Using a Modified Mixing Rule 1162Y.-M. Liu, M. T. Shaw, University of Connecticut

•Present in a joint session.

ANTEC '95/xix

Rheological Characterization to Determine MWD—The Shape Factor 1166A. Goettfert, E.-O. Reher, V. Schulze, GoettfertMolecular Weight Distribution Obtained from Rheology:Different Methods and Common Problems 1172H. Braun, Gebriider HAAKE GmbHC. Friedrich, D. Maier, Albert-Ludwigs-UniversitatInvestigation of Packing Behaviour of Irregular ShapedGround Rubber Tyre Particles in LDPE Matrix 1178A. Mayadunne, S. N. Bhattacharya, E. Kosior, C. Boontanjai, RMITEffect of Interactions on Rheological and Mechanical Propertiesof Short Fiber Thermoplastic Composites 1183M. Rajabian, A. Ait-Kadi, Laval UniversityNew Developments in the Melt Rheology of Nylons I:Effect of Moisture and Molecular Weight 1190Y. P. Khanna, P. K. Han, E. D. Day, AlliedSignal Inc.

JOINING OF PLASTICS & COMPOSITES SPECIAL INTEREST GROUP

The Effect of Welding on the a- and /3-Crystalline Forms of Polypropylene 1196S. M. Stevens, TWIEffects of Ageing on Tensile Properties and Structure of LinearFriction and Hot Plate Welds in Polyethersulphone 1201S. M. Tavakoli, TWIJoining HDPE Pipe with Wrap-Around Electrofusion Couplers 1206R. J. Ritter, Raychem CorporationDesign and Evaluation Methods for Electrofusion Joints ofPolyethylene Pipes for Gas Distribution 1212H. Nishimura, M. Suyama, F. Inoue, T. Ishikawa, Osaka Gas Co., Ltd.Joining Articles with Conductive UHMWPE 1217R. J. Ritter, Raychem CorporationHot Plate Welding of High Density Polyethylene: The Effect ofMelt Index and Density on Weld Strength 1224R. J. McGreevy, Hardigg Industries, Inc.Experiments on the Hot-Tool Welding of Polycarbonate 1229V. K. Stokes, GE Corporate Research and DevelopmentInfrared Welding of Polypropylene 1235Y. S. Chen, A. Benatar, The Ohio State UniversityModeling and Design of Induction Bonding Process forInfrastructure Rehabilitation with Composite Materials 1239E. Karamuk, E. D. Wetzel, J. W. Gillespie, Jr., University of DelawareSingle Mode Microwave Welding of HDPE Using Conductive Polyaniline/HDPE Composites 1244C.-Y. Wu, A. Benatar, The Ohio State UniversityInfrared Welding of Polybutylene Terephthalate 1248Y. S. Chen, A. Benatar, The Ohio State UniversityTime Lapse Effects on Pull-Out Resistance of Threaded Inserts in Polypropylene 1254E. Lokensgard, Eastern Michigan UniversityPolymer Thread Joints under Dynamic Load 1257F. Dratschmidt, G. W. Ehrenstein, Lehrstuhl fur KunststofftechnikExperimental Investigation of Diffusion EnhancedAdhesive Bonding for Thermoplastic Composites 1264S. H. McKnight, R. C. Don, M. Scott, A. Braem, J. W. Gillespie, Jr., University of DelawareCoupling Agents for the Adhesion of Steel to Epoxy 1269K. Vaideeswaran, J. P. Bell, University of ConnecticutAssessment of Through Transmission Ultrasonics for theDetection of Intimate Contact during Fusion Bonding 1274K. D. Tackitt, J. W. Gillespie, Jr., C. A. Butler, R. L. McCullough, R. C. Don, University of DelawareToward a Weld-Strength Data Base for Vibration Welding of Thermoplastics 1280V. K. Stokes, GE Corporate Research and DevelopmentVibration Welding Nylon 6 and Nylon 66—A Comparative Study 1285I. D. Froment, TWIQuality Assurance in Ultrasonic Welding Using Statistical Process Models—Prediction of Weld Strength 1290W. Michaeli, W Korte, Institut fur Kunststqffverarbeitung

ANTEC '95/XX

Ultrasonic Weld Quality Predictions: Feasibility Study on Statistical Modeling 1296D. A. Grewell, E. Tavares, Branson Ultrasonics CorporationUltrasonic Welding with Amplitude Profiling 1301R. L. Ford, Baxter Healthcare CorporationS. B. Driscoll, University of Massachusetts at LowellFinite Element Analysis of a Plastic Part Failure during Ultrasonic Welding 1305R. Gerdes, H. S. Gopalakrishna, S. K. Nayar, 3M

•A New Design Methodology for Integral Attachments 3766P. R. Bonenberger, General Motors North American Operations

•Attachment Strategy Guidelines for Integral Attachment Features 3771A. F. Luscher, G. A. Gabriele, Rensselaer Polytechnic InstituteP. R. Bonenberger, General Motors Corporation

•A Classification Scheme for Integral Attachment Features 3783A. F. Luscher, G. A. Gabriele, R. W. Messier, Jr., Rensselaer Polytechnic InstituteP. R. Bonenberger, General Motors Corporation

•The Role of Enhancement Features in High Quality Integral Attachments 3788P. R. Bonenberger, General Motors North American Operations

•A Design Tool Based on Integral Attachment Strategy Case Studies 3793R. R. Mayer, G. A. Gabriele, Rensselaer Polytechnic Institute

•Failure Analysis of a Bayonet-Finger Snap-Fit 3799L. Wang, G. A. Gabriele, A. F. Luscher, Rensselaer Polytechnic Institute

VOLUME II-MATERIALSELECTRICAL & ELECTRONIC DIVISION

Spin Coating on Substrate with Topography 1310J. Gu, G. A. Campbell, Clarkson UniversityOxidation of Polymers Used in Electroluminescent Devices 1316B. H. Cumpston, K. F. Jensen, Massachusetts Institute of TechnologyDevelopment of Surface Conductivity in a Thermoplastic IonomerFilm by in situ Polymerization of Pyrrole 1321M. C. de Jesus, R. A. Weiss, F. Papadimitrakopoulos, University of ConnecticutY. Chen, Academia SinicaElectropolymerization of Thin, Conformal Coatings onto Steel D25X. Zhang, J. P. Bell, M. Narkis, University of ConnecticutDevelopment of Film Profiles under Different Drying Conditions 1330M. D. Bullwinkel, J. Gu, G. A. Campbell, Clarkson UniversityCarbon Fiber Reinforced Thermoplastics with Controlled Surface Resistivity 1338S. R. Gerteisen, DSM Engineering Plastics, Inc.Segregated Structures in Electrically Conductive Immiscible Polymer Blends 1343M. Narkis, R. Tchoudakov, O. Breuer, A. Siegmann, Technion-Israel Institute of TechnologyApplication of Intrinsically Conductive Polymers for Antistatic Footwear 1347C. McCall, J. A. Dalton, Footwear Innovations Ltd.G. Billis, Hong Kong PolytechnicV. G. Kulkarni, Americhem Inc.Structural Materials in the Electrical Power Transmission Industry:Perceptions and Economics 1351A. E. Mascarin, IBIS AssociatesD. E. Hodges, Massachusetts Institute of TechnologyElectrostatic Dissipating Composites Containing Graphite Microfibers 1358K. K. Schwartz, E. W. S. Bryant, Hyperion Catalysis International, Inc.NCMS Material Compatibility for Pollution Prevention 1362T. Crawford, EMPFC. Ellenberger, Texas InstrumentsL. Stenger, NCMS

•Precision Molding of Fiber Array Connectors: What Does It Take? 1372G. J. Shevchuk, M. A. Shahid, AT&T Bell Labs

•A Knowledge-Based Synthesis System for Chip Encapsulation 1377Y. J. Huh, S. Han, K. K. Wang, Cornell University

•Present in a joint session.

ANTEC '95/XXl