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Indianapolis

UB/TIB Hannover 89114 070 245.,

CONTENTS -

VOLUME I—PROCESSING •

EXTRUSION DIVISION

M1—TAPPI

Considerations for Choosing an Integrated Control System 2W. Hellmuth, Battenfeld Gloucester Engineering Co., Inc.The Applications and Benefits of Total Integrated Process Control 8J. W. Krause, FACTS, Inc.Optimizing COF, Seal Performance, and Optical Properties of Polyolefin Plastomers 20J. J. Wooster, B. E. Simmons, The Dow Chemical CompanyComputer Simulation of Film Blowing 31V. Sidiropoulos, J. J. Tian, J. Vlachopoulos, McMaster UniversityAn Improved Purging Compound for Polyamides and Ethylene Vinyl Alcohol Copolymers 40M. G. Botros, Quantum Chemical Company

M2-Mixing

'"Investigation of Non-Linear Effects of Polymer Flows during Mixing 54B. A. Davis, T. A. Osswald, University of Wisconsin-Madison

* Phase Inversion during Compounding of Polycaprolactone/Polyethylene Blends 59R. Ratnagiri, C. E. Scott, Massachusetts Institute of Technology

*Rheology and Processing of Polycarbonate/Carbonate/Carbon Black Composites 64Y. L. Joo, Y. D. Lee, T. H. Kwack, T.-I. Min, Hanwha Chemical Corporation

•Processing of Thermoplastic Elastomers and Rubber Modified Rubber Polymerson Continuous Operating Compounding Machines 69H. U. Siegenthaler, Buss AGT. Stropoli, Buss (America), Inc.

*The Rheology and Morphology of Layered Polymer Melts in Shear 84M. B. DeBrule, L. Levitt, C. W. Macosko, University of Minnesota

M14—Films

A Review of the Blown Film Process 92R. Knittel, Black Clawson-Sano, Inc.Modular Coextrusion Stacked Dies for Blown Film 101H. Mavridis, Black Clawson-Sano, Inc.Optimized Cooling and Gauge Tolerances in Blown Film Extrusion 106B. Feron, D. Wolf, J. Wortberg, University of EssenStudy of Kinematics and Dynamics of Film Blowing of a Linear Low Density Polyethylene IllA. Ghaneh-Fard, P. J. Carreau, P. G. Lafleur, Ecole PolytechniqueThe Effect of Processing Variables on Peel Strength Performance in Coextrusion Blown Film 116B. A. Morris, DuPont CompanyThe Effect of Layer Geometry on Tie Layer Adhesion of Coextruded Films 121G. W. Kamykowski, S. Goto, M. S. Pucci, Extrudable Specialties Business Group

•Present in a joint session.

ANTEC '96/ix

M1S—Extrusion Modeling

Analysis of Flow in Screw Extruders, Effect of Kinematic Conditions 128C. Rauwendaal, Rauwendaal Extrusion Engineering, Inc.P. J. Gramann, The Madison Group: PPRCT. A. Osswald and G. Tellez, University of Wisconsin-MadisonScrew Design and Newtonian Fluid Flow 136G. A. Campbell, C. Wang, D. Hunt, E. Leipold, Clarkson UniversityDesign of Sinusoidal Barrier Mixing Element for Single Screw Extrusion 143S. Zerafati, D. Bigio, University of MarylandT. W. Womer, Spirex CorporationComputer Simulation of Conventional and Barrier Screw Extruders 148A. MacGregor, J. Vlachopoulos, McMaster UniversityJ. Vlcek, Compuplast International, Inc.Coupled Simulation of Die and Extrusion Flows Using Three-DimensionalFinite Element Method 155A. Lawal, S. Railkar, D. M. Kalyon, Stevens Institute of TechnologyNon-Isothermal Non-Newtonian Analysis of Flow in a ModularList/Buss Kneader 160M.-Y. Lyu, J. L. White, University of AkronThree Dimensional Flow Effects on Residence Time Distribution hi Screw Extruders 170L. Chen, J. T. Lindt, University of PittsburghThe Division of Agglomerates in Molten Environment of Polymers: A PhysicalModel for Mathematical Description 178H. Potente, J. Flecke, University ofPaderborn

T1—Single Screw Extrusion

Analysis of Dynamic Seals in Screw Extruders 184C. Rauwendaal, Rauwendaal Extrusion Engineering, Inc.Stress Distribution in Solid Polymer Compacts 191M. A. Spalding, K. S. Hyun, K. R. Hughes, Dow PlasticsTheoretical and Experimental Analysis of Solids Conveying in Single-Screw Extruders 199K. S. Hyun, M. A. Spalding, C. E. Hinton, Dow PlasticsFrictional Behavior of Polyethylenes with Respect to Density and Melting Characteristics 207Y. S. Kim, C. I. Chung, Rensselaer Polytechnic InstituteS. Y. Lai, K. S. Hyun, The Dow Chemical CompanyMelting Behavior of Different Types of Low Density Polyethylenesand Screw Design Considerations 216Y. S. Kim, C. I. Chung, Rensselaer Polytechnic InstituteS. Y. Lai, T. I. Butler, K. S. Hyun, The Dow Chemical Company

T19—Dies and Die Design

"Wave" Pattern Instability in Multilayer Coextrusion—An Experimental Investigation 224R. Ramanathan, R. Shanker, T. Rehg, S. Jons, D. L. Headley, W. J. Schrenk,The Dow Chemical CompanyEnhanced Dies for Unique Tubing Applications 229A. Gupta, I. R. Harrison, The Pennsylvania State UniversityT.-C. Hsu, Polymics, Ltd.Analyzing the Flow through Dies Containing Different Channel Geometries 236J. Dooley, K. Hughes, The Dow Chemical CompanyAn Experimental and Numerical Investigation of Waterflow in anUnderwater Pelletizer (UG400) 241A. Kiani, J. Bartl, R. Sauter, R. Munz, P. Heidemeyer, Werner & Pfeiderer GmbHProfile Die Design by Pressure Balancing and Cross Flow Minimization 247B. L. Koziey, J. Vlachopoulos, Polydynamics, Inc.J. Vlcek, J. Svabik, Compuplast International, Inc.The Use of Three-Dimensional Computational Fluid Dynamics in the Design of Extrusion Dies 253W. A. Gilford, Extrusion Dies, Inc.Optimal Design of a Linearly Tapered Coat-Hanger Die 260C.-C. Huang, National Kaohsiung Institute of Technology

X/ANTEC '96

Study of Self-Reinforced Polypropylene from Continuous Melt Extrusion 265H. Huang, South China University of Technology

T20—Reactive Extrusion

'"Effect of Processing Parameters on the Compatibilization of Polypropyleneand Poly(butylene terephthalate) Blends by One-Step Reactive Extrusion 270Y.-J. Sun, G.-H. Hu, M. Lambla, Ecole dApplication des Hauts Polymeres

•Reactive Modification of Polypropylene 277M. Lu, J. R. Collier, B. J. Collier, Louisiana State University

"'Polypropylene Graft Modified with Glycidyl Methacrylate and Styrene 283B. Wong, W. E. Baker, Queen's University

"'Innovative Products from Post Consumer Nylon Carpet via Reactive Extrusion 288C. G. Hagberg, Welding Engineers, Inc.J. L. Dickerson, Monsanto Company

* Acceleration of Chemical Reaction in Reactive Extrusion Accompaniedby Devolatilization 295L. Chen, G. H. Hu, J. T. Lindt, University of Pittsburgh

"•Crystallization Behavior of the Blends of Pet and PBT by Extrusion 305Y. Yu, K.-J. Choi, Tennessee Technological University

"'Simulation of Reactive Extrusion: Polymerization of Caprolactam in aModular Co-Rotating Twin Screw Extruder 309H. Kye, J. L. White, The University of Akron

W2—Twin Screw Extrusion I

Mixing of Low Viscosity and High Viscosity Polymer Melts in a ModularCo-Rotating Twin Screw Extruder 316S.-H. Lee, J. L. White, University of AkronMixing Characteristics of Rubber in a Twin Screw Extruder Based on Drag Flow 324G. Gasner, D. Bigio, University of MarylandC. Kiehl, F. Magnus, The Goodyear Tire & Rubber CompanyResidence Tune Distributions in Twin Screw Extruders: Contribution ofthe Different Screw Functions 329M. A. Huneault, R. Gendron, L. E. Daigneault, Industrial Materials InstituteSIGMA—Computer Aided Process Simulation of Intermeshing Co-RotatingTwin-Screw Extruders 334H. Potente, U. Melisch, J. Flecke, University ofPaderbornPressure Profile in an Intermeshing Counter-Rotating Twin Screw Extruder 338T. Motoda, M. Ishihara, T. Sugaya, Y. Deguchi, Sekisui Chemical Co., Ltd.

W19—Devolatilization

A Model of Polymer Devolatilization 350C.-T. Yang, T. G. Smith, D. I. Bigio, University of MarylandC. Anolick, DuPont Central R&DAnalyzing Devolatilization Extruders for Residuals Optimization 356T. F. Bash, Welding Engineers, Inc.R. Cornejo, ARCO Chemical CompanyDevolatilization of Filled Polymeric Materials: I-Batch Study 365J. Cheng, D. I. Bigio, R. M. Briber, University of MarylandExperimental Analysis of the Dewatering Processing by Intermeshing Co-Rotating Twin Screw Extruder 370A. Kobayashi, J. Ishibashi, Toshiba Machine Co., Ltd.

H1—Twin Screw Extrusion II

Compounding of Glass Reinforced Plastics in Corotating IntermeshingTwin-Screw Extruder with Novel Mixing Sections 376L. N. Valsamis, E. L. Canedo, Farrel CorporationTwin Screw Extrusion Processing of Filled Polymers 381A. Lawal, S. Railkar, P. Yaras, D. M. Kalyon, Stevens Institute of Technology

•Present in a joint session.

ANTEC '96/xi

Experimental Study of Extruding Behavior against Material Property in theFiller Mixing by Intermeshing Co-Rotating Twin Screw Extruder 386J. Ishibashi, A. Kobayashi, T. Yoshikawa, K. Shinozaki, Toshiba Machine Co., Ltd.Compaction and Conveying Behavior of (Suspension) PVC Powder inCounter-Rotating Twin Screw Extruder " . . . .391T. Motoda, M. Ishihara, T. Sugaya, Y. Deguchi, Sekisui Chemical Co., Ltd.Heat Transfer Behavior of Powder State in Intermeshing Counter-Rotating Twin Screw Extruder 399T. Motoda, M. Ishihara, T. Sugaya, Y. Deguch, Sekisui Chemical Co., Ltd.

H2—Extrusion Tutorials

High Precision Extrusion Lines 406C. Rauwendaal, G. Armstrong, S. Unruh, Integrated Extrusion Engineering, Inc. .

H15—Measurement & Control

Predicting Actual Temperature Distributions in a Polymer Stream Using anAdjustable-Depth, Exposed-Tip Thermocouple Assembly 412T. W. McCullough, M. A. Spalding, The Dow Chemical CompanyHeat Transfer Coefficients in Extruder Melt Sections 417S. J. Derezinski, Eastman Kodak CompanyAxial Conduction in a Convectively Heated/Cooled Extruder Barrel 422V. Sernas, L. Xiao, P. Lin, Y. Jaluria, Rutgers UniversityA New Online Technique for Morphology Analysis and Residence TimeMeasurement in a Twin Screw Extruder 427A. Kiani, U. Burkhardt, P. Heidemeyer, Werner & PfleidererO. Franzheim, T. Rische, M. Stephan, Institut of Polymer Research Dresden regdH. Baetz, R. Pallas, M. Sahoub, A. Zeuner, Dresden Technical UniversityMeasure Viscosity On-Line with a Helical Barrel Rheometer 435D. B. Todd, C. G. Gogos, M. Esseghir, D.-W Yu, S. Widagdo,Polymer Processing Institute at StevensProfile Control System for Sheet Forming with a Melt Bank 440K. Mizunuma, M. Yagi, S. Nitta, Toshiba Machine Co., Ltd.Surge Suppression—A New Means to Limit Surging 445K. Luker, Randcastle Extrusion Systems, Inc.

INJECTION MOLDING DIVISION

M29—Student Joint with Injection Molding

"'Determining Process Stability while Altering a Material's Viscosity 3486J. Wilczynski, C. Green, The Pennsylvania State University-Erie, The Behrend College

•Energy Use during Injection Molding 3489C. M. Prenatt, The Pennsylvania State University-Erie, The Behrend College

•Developing an Expert System for Mold Frames 3492T. B. Garman, E. D. Anderson, The Pennsylvania State University-Erie, The Behrend College

•Shrinkage Software for Tool Design 3496G. Feldbauer, The Pennsylvania State University-Erie, The Behrend College

•Studying Processing Effects on Shrinkage of a Hygroscopic Material 3502D. Fulton, The Pennsylvania State University-Erie, The Behrend College

•The Effect of Injection Molding and Material Parameters on Moldedand Annealed Polyphthalamide 3505D. M. Moyak, The Pennsylvania State University-Erie, The Behrend College

T2—Techniques & New Developments

Evaluation of Rib Designs in IR Materials Using the Solid,Structural Foam, and Gas-Assist Molding Processes 454K. A. Kerouac, P. F. Grelle, M. A. Kallman, The Dow Chemical Company

•Present in a joint session.

XU/ANTEC '96

Dynamics of the Melt-Air Interface: The Key to Understanding the Uniquenessof Injection Molded Parts 460L. R. Schmidt, LR Schmidt AssociatesMolding Engineering Resins into Thin Wall Applications: Issues and Answers 466L. Cosma, GE PlasticsEffects of Processing Conditions and Material Models on the InjectionPressure and Flow Length in Thinwall Parts 470A. J. Poslinski, GE Corporate,Research and DevelopmentP. R. Oehler, GE PlasticsInjection Molding Higher Performance Reinforced Plastic Composites 475D. V. Rosato, Rhode Island School of Design

T3—Product Development for Injection Molding

•Dimensional Stability of Thermoplastic Parts: Modeling Issues 482W. C. Bushko, V. K. Stokes, GE Corporate Research and Development

"•Dimensional Stability of Thermoplastic Parts: Model Experiments 486A. J. Poslinski, W. C. Bushko, V. K. Stokes, GE Corporate Research and DevelopmentL. R. Cosma, GE Plastics

•Dimensional Stability of Thermoplastic Parts: Comparison of Shrinkage Data with Predictions 491W. C. Bushko, V. K. Stokes, A. J. Poslinski, GE Corporate Research and Development

•Comparison of C-Mold Predictions and Experimental Shrinkages: Fiber-Filled Materials 496R. M. Shay, Jr., P. H. Foss, C. C. Mentzer, General Motors Research and Development Center

•Prediction of Fiber Orientation and Mechanical Properties Using C-Mold and Abaqus 501P. H. Foss, J. P. Harris, J. F. O'Gara, General Motors Research and Development CenterL. P. Inzinna, E. W. Liang, GE Corporate Research and DevelopmentC. M. Dunbar, Hibbitt, Karlsson and Sorensen, Inc.C. L. T\icker III, K. F. Heitzmann, University of Illinois

T21—Injection Molding Total Quality

In-Line Process Measurements for Integrated Injection Molding 508R. G. Speight, Moldflow Pty. Ltd.E. P. Yazbak, DyniscoP. D. Coates, University of BradfordAn On-Line Quality Monitoring System for Thermoplastic Injection Molding 513J. C. Rowland, Moldflow Pty. Ltd.D. O. Kazmer, University of Massachusetts at AmherstUsing Experimental Design as a Catalyst in the Evolutionary Process of Problem Solving:A Case Study 519R. Schultz, Dickten and Masch Mfg. Co.Intelligent Monitoring for 100% Automatic Inspection of Qualityin Injection Moulding 525P. D. Coates, A. J. Dawson, A. Key, University of Bradford, Polymer InsightsC. Peters, R. Jagger, Birkbys Plastics Ltd.Application of In-Mold Pressure Sensing to Large Scale Productionof Injection Molded Parts: What Are the Benefits? 530C. Payne, B. Baylis, D. W. Panek, A. Plumb, Siemens Electric Limited: Automotive SystemsJ. W. Bozzelli, IM SolutionsQuality Control in Injection Molding with an Adaptiv Process Model Basedon Neural Networks 537J. Haufiler, J. Wortberg, University of Essen

T22—Advances in Injection Molding Equipment/Technology

Quality Quadrant Summary 544S. E. Rains, Van Dorn Demag CorporationExtending the Envelope: High Tonnage All Electric Molding Machines 551R. J. Speed, Cincinnati Milacron

•Present in a joint session.

ANTEC '96/xm

Remanufacture of Toggle and Hydraulic Clamp Injection Molding Machines 555S. R. Schroeder, John Brown Plastics MachineryDirect Acceleration Clamp Control for Injection Molding Machines 560S. Takashima, HPM Corp.Injection Molding-How to Be Effective in the Nineties ". 567R. T. Alvarez, Ethicon Endo-SurgeryR. L. Braido, Tech GroupEstimation of Machine Requirements and Process Optimization ofThinwall Injection Molding 571P. R. Oehler, GE PlasticsReproducibility of Injection Moulding Machines 575N, Kudlik, W. Michaeli, Institut fiir Kunststoffverarbeitung

T41—Student Joint with Injection Molding

•FEA Modeling Difficulties Related to the Material Characterizationof a Glass Filled Nylon 3518K. W. Hull, The Pennsylvania State University-Erie, The Behrend College

•Evaluation of Pressure Predictions from CAE Technology forthe Filling of Long Glass Fiber Filled Parts 3523D. M. Stitchick, The Pennsylvania State University-Erie, The Behrend College

•Design Considerations for Melt Delivery Systems Using LongFiber Reinforced Thermoplastics 3528J. A. Konzel, The Pennsylvania State University-Erie, The Behrend College

•Rheological Characterization of Long Glass Fiber Filled Polyurethanefor Flow Analysis Programs 3532M. A. Russell, The Pennsylvania State University-Erie, The Behrend College

•The Effects of Ribs and Corners on Long Glass Fiber Filled Materials 3538C. Watrous, The Pennsylvania State University-Erie, The Behrend College

•Effects of Shear on a 30% Glass Reinforced Material 3543J. H. Clawson, Ferris State University

•The Effects of Extra Coarse Filler in Polypropylene Compounds 3545K. C. Johnson, University of Massachusetts at Lowell

•Evaluation of Molding Process' Impact on Finite Element Structural Analysis 3550T. W. Wilhelm, The Pennsylvania State University-Erie, The Behrend College

W3—Process Control with Injection Molding

Process Control on Injection Molding Machines: What Is the Correct HydraulicResponse during Switchover from 1st to 2nd Stage? 584J. W. Bozzelli, Injection Molding SolutionsJ. Cardinal, Ashland, Inc.Control of Polymer Melt Flow Front Position during the Injection Molding Process 588R. G. Speight, Moldflow Pty. Ltd.J. B. Hull, University of Nottingham at TrentP. D. Coates, University of BradfordAdaptive Controller Performance Used for Ram VelocityControl during Filling Phase 593C. Y. Zhang, J. Leonard, R. G. Speight, Moldflow Pty. Ltd.Statistical Process Control of Injection Molding SimulationBased on an Experimental Study 598S. Taghizadegan, ConsultantD. O. Harper, University of LouisvilleAnalysis of Transducer Accuracy on the Repeatability of the Injection Molding Process 603E. Griesser, K. Pinkham, Sensotron, Inc.

W4—Specialty Materials & Material Properties—Injection Molding

Injection Molding of Metal and Ceramic Powders and Debinding byExtraction with Supercritical Carbon Dioxide 612L. A. Merz, Fraunhofer-Institut fuer Chemische Technologie

•Present in a joint session.

XIV/ANTEC '96

Dynamics of Recoverable Strain of Injection Molded Parts 615M. D. Bullwinkel, S. E. Campbell, G. Nagarajan, C. Wang, G. A. Campbell, Clarkson UniversityTexture in Injection Molded Polyethylene 2,6 naphthalene dicarboxylate) Parts 621Y. tilcer, M. Cakmak, The University of AkronVolume Viscoelastic Relaxation in a Glass Forming Polymerduring Injection Molding 627A. J. Bur, NISTC. L. Thomas, University of UtahEffect of Processing Conditions on the Heat Resistance of a Polymer:A Design of Experimental Approach 632K. H. Ahn, J. T. Yoon, Cheil Industries Inc.

W21—Gas Assist Injection Molding -

Optimization of Gas Assisted Injection Moulding by Using Multiple Gas Injection Systems 638D. M. Gao, K. T. Nguyen, A. Garcia-Rejon, G. Salloum, National Research Council of CanadaGas-Assisted Injection Molding: Influence of Processing Conditionsand Material Properties 644K. W. Koelling, The Ohio State UniversityR. C. Kaminski, The Geon CompanyAn Experimental Study to Investigate the Influence of Processing Conditionsin the Gas-Assisted Injection Molding Process 649V. Kapila, Ford Motor CompanyN. R. Schott, University of Massachusetts at LowellS. Shah, GM Corp.One-Shot Manufacturing: What Is Possible with New Molding Technologies 655J. F. Stevenson, GenCorp Technology CenterEffect of Gas Channel Design on Molding Window and Part MechanicalProperties of Gas-Assisted Injection Molding 663S. C. Chen, J. G. Dong, W. R. Jong, J. S. Huang, Chung Yuan Christian UniversityM. C. Jeng, National Central UniversityExperimental Studies of Design Guidelines for Gas-AssistedInjection Molding Process 668W.-R. Jong, J.-S. Huang, Y.-S. Chang, Chung Yuan Christian UniversityTheoretical and Practical Results for the Gas Injection Molding ProcessVariant: Melt Displacement into an Overflow Cavity 674E. Moritzer, H. Potente, University ofPaderborn

W22—Technologies for Injection Mold Design

•Characterizing and Controlling Secondary Flows hi Injection Molds 680B. A. Salamon, R. J. Donald, Dow Plastics

•Use of the Moving Boundary Molding Technique to Strengthen Weld Lines 685G. P. Gardner, R. A. Malloy, University of Massachusetts at Lowell

•Optimization of Part Wall Thicknesses to Reduce Warpage in InjectionMolded Part Based on the Modified Complex Method 692B. H. Lee, Integrated Design, Inc.B. H. Kim, University of Massachusetts at Amherst

•Texture Mapping Aesthetic Defects of Injection Molded Parts:Advances in Virtual Molding 699G. Engelstein, GR Technical Services

•3D Finite Element Method for the Simulation of the Filling Stagehi Injection Moulding 703J. F. Hetu, D. M. Gao, A. Garcia-Rejon, G. Salloum, National Research Council of Canada

•Automated Design for the Runner System of Injection MoldsBased on Packing Simulation 708B. H. Lee, Integrated Design Inc.B. H. Kim, University of Massachusetts at Amherst

•Optimal Design of Cooling System for Injection Molding 714L. Q. Tang, K. Pochiraju, C. Chassapis, S. Manoochehri, Stevens Institute of Technology

•Present in a joint session.

ANTEC '96/XV

•Mold and Part Surface Temperature Mapping 719M. Vander Kooi, ADAC Plastics, Inc.P. Engelmann, S. Ramrattan, Western Michigan UniversityM. Monfore, Ralston Foods

H3—CAE for Injection Molding, Part I

Performing an Accurate Fiber Orientation Analysis 726B. E. VerWeyst, C. L. Tucker III, University of IllinoisP. H. Foss, General Motors Research and Development CenterProgress towards True 3D CAE Analysis for Injection Molding 731C. Friedl, Moldflow Pty. Ltd.Using DOE Techniques on Molding Simulation to ImproveInjection Molded Part Quality 736Q. Zou, G. Ari, R. Hess, Bowles Fluidics CorporationNumerical Simulation of 3-Dimensional Flow in Injection Molding 744Y. Inoue, T. Higashi, T. Matsuoka, Toyota Central R&D Labs., Inc.Effects of Fiber Orientation on Strain Concentrations inGlass Reinforced Polyamides 749A. Bernhardt, Plastics & Computer Inc.G. Panzeri, Plastics & Computer International s.r.l.

H4—New Technologies & Developments, Part I

Optimization of the Injection Molding Process 754S. H. Dillman, D. Howe, H. Robar, Western Washington UniversityAnalysis of the Residence Time Distribution for Hot Runner Injection Molding 759B. Cao, K. Powell, T. Sullivan, Becton Dickinson Research CenterQuality Improvements Resulting from Rheomolding® Technologyduring Injection Molding Processes 764A. Kikuchi, R. F. Callahan, TherMold Partners L.P.Control of Performance of Polymers and Their Blends throughMelt Vibration Technology. Critical Review 769J. P. Ibar, EKNET ResearchMolding Stress-Free Parts by Adjusting Gate Size while theMold Is Running in the Press 774J. von Holdt, Plas-Tool Co.

H16—CAE for Injection Molding, Part II

The Importance of Pressure Dependent Viscosity and Contraction PressureLosses to Injection Molding CAE Analysis 778G. Sherbelis, C. Friedl, Moldflow Pty. Ltd.Prediction and Interpretation of Weld-Line Strength via CAE Results 783W.-R. Jong, C.-H. Chan, C.-C. Wu, Chung Yuan Christian University^Consideration of the Screw Injection Speed Profile in the Simulationof the Injection Moulding Process.. 788H. Findeisen, W. Michaeli, Institut fiir KunststoffverarbeitungUnified Approach to Modeling Flow and Heat Transfer hi Mold Cavities 792A. W. Chan, R. J. Morgan, Michigan State UniversityPredicting the Effect of Preforming on RTM Mold Filling .797A. S. Bakharev, C. L. Tucker in, University of IllinoisSimulation of the Plasticating Phase of Injection Moulding Machines 802H. Potente, A. Ujma, University ofPaderbornA 3D Rectilinear Flow Model Approach to the Simulation of theInjection Molding of a Slowly Crystallizing Polymer 807C.-M. Hsiung, University of SW Louisiana

•Present in a joint session.

Wi/ANTEC '96

H17—New Technologies & Developments, Part II

Comparison of Fill-to-Pack Transfer Methods during Process/Material Disturbances 814B. Souder, J. Davis, J. Bak, United Technologies Research CenterNondestructive Wall Thickness Measurements » . .821K. A. Fowler, G. M. Elfbaum, K. A. Smith, T. J. Nelligan, Panametrics, Inc.Off-Line Optimization of the Injection Molding Process Considering Regrinds 826K. Kuhmann, G. W. Ehrenstein, Lehrstuhl fur KunststofftechnikAnalytical Study of Thin-Wall Injection Molding:Filling and Cooling Analysis 831S. Cha, F. S. Lai, University of Massachusetts at LowellExpert System Aided Troubleshooting in Polymer Engineering 837I. Catic, M. Slavica, M. Sercer, G. Baric, University of ZagrebCase Studies of Morphology Development for iPP during theInjection Molding Cooling Process 842B. Xie, D. I. Bigio, University of Maryland

THERMOFORMING DIVISION

H5—Thermoforming

Thermoforming Disposables Opportunities and Issues: Markets, Materialsand Machinery—The Competitive Interface 848L. Hoover, Harborside Research GroupFinite Element Modeling of Radiant Heating on Polymeric Materials 854M. A. Thrasher, Eastman Chemical CompanyExtrusion and Thermoforming of Polypropylene—The Effect ofProcess and Material Variables on Processability 858N. Macauley, E. Harkin-Jones, W R. Murphy, The Queen's University of BelfastAutomation of the Thermoforming Process by a Wall ThicknessClosed-Loop Control 863W. Michaeli, J. van Marwick, Institutfur Kunststoffverarbeitung

H18—Thermoforming

High Nitrile Polymers-Thermoforming Par Excellence 870G. \bung, American MirrexCorp.P. R. Lund, BP ChemicalsSheet Temperature Measurement in Thermoforming 878J. F. Lappin, P. J. Martin, The Queen's University of BelfastOn Thermoforming of Heavy Gauge Sheets 883W. K. Shih, Eastman Chemical Company

THERMOSETS DIVISION

T6—Recycling of Thermosets

•The Properties of Glass Fibres Recycled from the Thermal Processingof Scrap Thermoset Composites 890J. R. Kennerley, N. J. Fenwick, S. J. Pickering, C. D. Rudd, The University of Nottingham

•The Option of Source Reduction 895M. S. Wickersham, Bulk Molding Compounds, Inc.

T28—New Developments: "These Are Not Your Father's Thermosets Anymore"

Effects of the Exposure of an Epoxy Resin to Chemicalson Its Mechanical Properties 900C. Gutierrez, A. Martinez-Ruvalcaba, E. Michel-Valdivia, V. M. Gonzalez-Romero,Universidad de Guadalajara

•Present in a joint session.

ANTEC '96/XVii

Determination of Tension and Flexural Properties of an EpoxyResin Using Several Aromatic Amines as Curing Agent 905O. Esquivel, A. Martinez-Ruvalcaba, E. Michel-Valdivia, V. M. Gonzalez-Romero,Universidad de GuadalajaraFlow Modeling of Thermoset Injection Molding 7 910H.-T. Chiu, C.-H. Wu, L. J. Lee, The Ohio State UniversityImpact Behavior and Properties of Carbon FiberReinforced Epoxy Composite Laminates 917C. C. M. Ma, N. H. Tai, G. Y. Wu, S. H. Lin, J. M. Lin, National Tsing Hua UniversityC. L. Ong, Y. C. Chang, M. F. Sheu, Chung Shan Institute of Science & Technology"Engineered" Charge Patterns—A Practical Guide forCompression Molding SMC 922B. H. Hull, Premix, Inc.High Cycle Injection Molding of Phenolic Compoundby Newly Designed Screw 927M. Horie, E. Funatsu, E. Ohno, Sumitomo Bakelite Co., Ltd.Tooling Innovations for Thermoset Molding 932L. E. Nunnery III, Bulk Molding Compounds, Inc.

BLOW MOLDING DIVISION

H7—Materials for Blow Molding

The Effect of Isophthalic Acid Modification on the Thermal Crystalization of PET 938S. L. Sakellarides, Amoco ChemicalsEffects of Moisture and Physical Aging on the Free BlowCharacteristics of PET 943G. Venkateswaran, S. A. Jabarin, The University of ToledoParison Formation and Inflation of Polyamides in Blow Molding 953A. H. Wagner, D. M. Kalyon, Stevens Institute of TechnologyBasic Studies of Blow Molding of Talc-Thermoplastic Compounds 958C. H. Suh, J. L. White, University of AkronImportance of Fast Color Change hi Accumulator Head Blow Molding 963R. A. Slawska, Proven Technology, Inc.

H19—Processing Advances in Blow Molding

Swell and Sag in Blow Moulding—A Monitoring System forthe Geometry of the Parison 970U. Langkamp, W. Michaeli, Institut fiir KunststoffverarbeitungPrediction of Extensions in 3-D Blow Moulding Simulation 977B. Debbaut, Polyflow S.A.Parison Inflation Behaviour of an Industrial Blow Moulded Part 982D. Laroche, A. Garcia-Rejon, National Research Council of CanadaN. Jivraj, Dow Benelux N.V.Integrated Modelling of Automotive Blow Moulded Parts 987D. Laroche, R. W. DiRaddo, R. Aubert, National Research Council of CanadaC. Payne, Siemens AutomotiveContinuous Process Control for Improved Quality Assurancein Extrusion Blow Molding 991H. Potente, B. Krell, Universitat GH-PaderbomApplication of Thermography for the Optimization of theBlow Moulding Process 996M. Prystay, A. Garcia-Rejon, National Research Council of Canada

MOLD MAKING & MOLD DESIGN DIVISION

T11—New Molding Technologies

Metal Injection Molding—An Emerging New Market for Mold Makers 1002F. T. Gerson, F. T. Gerson Limited

XVlft/ANTEC '96

A Case Study on Gas Assisted Injection Molding Technology 1006Y. S. Soh, Taegu UniversityA Method of Encapsulation Using a Rotary Indexing Mold 1011J. M. Fischer, Tools and Troubleshooting'3R' Unscrewing Mold Technology *! 1017D. R. McCready, Husky Injection Molding Systems Ltd.New Technology in Runnerless Molding System Temperature Control 1022T. P. Linehan, D-M-E Company

T33—Mold Design & Computer Analysis

The Aluminum Solution 1036A. Fouray, S. Marichez, F. Planquais, Pechiney RhenaluApplying Copper Alloys Using New Mold Cooling Software '. 1041P. Engelmann, E. Dawkins, Western Michigan UniversityJ. Shoemaker, Moldflow Inc.M. Monfore, Ralston FoodsVarious Types of CAD/CAM Systems and Their Integrationwithin Mold Design 1046A. F. Padalino, D-M-E CompanyGap between Mold and Part and Its Effect on Cooling ofInjection-Molded Plastics 1049H. Wang, M. Prystay, J.-F. Hetu, B. Cao, C. K. Jen, National Research Council of CanadaEffects of Gate Design on the Processing Latitudes of Engineering Thermoplastics 1054D. J. Shah, The Eureka CompanyN. R. Schott, M. Rahman, University of Massachusetts at LowellComparison of the Flow Length with the Ratio of Flow Length to Thickness 1059W.-S. Jou, National Kaohsiung Institute of Technology

W22—Technologies for Injection Mold Design

•Characterizing and Controlling Secondary Flows hi Injection Molds 680B. A. Salamon, R. J. Donald, Dow Plastics

•Use of the Moving Boundary Molding Technique to Strengthen Weld Lines 685G. P. Gardner, R. A. Malloy, University of Massachusetts at Lowell

•Optimization of Part Wall Thicknesses to Reduce Warpage in InjectionMolded Part Based on the Modified Complex Method 692B. H. Lee, Integrated Design, Inc.B. H. Kim, University of Massachusetts at Amherst

•Texture Mapping Aesthetic Defects of Injection Molded Parts:Advances in Virtual Molding 699G. Engelstein, GR Technical Services

•3D Finite Element Method for the Simulation of the Filling Stagein Injection Moulding 703J. F. Hetu, D. M. Gao, A. Garcia-Rejon, G. Salloum, National Research Council of Canada

•Automated Design for the Runner System of Injection MoldsBased on Packing Simulation 708B. H. Lee, Integrated Design Inc.B. H. Kim, University of Massachusetts at Amherst

•Optimal Design of Cooling System for Injection Molding 714L. Q. Tang, K. Pochiraju, C. Chassapis, S. Manochehri, Stevens Institute of Technology

•Mold and Part Surface Temperature Mapping 719M. Vander Kooi, ADAC Plastics, Inc.P. Engelmann, S. Ramrattan, Western Michigan UniversityM. Monfore, Ralston Foods

APPLIED RHEOLOGY SPECIAL INTEREST GROUP

W16—Applied Rheology Special Interest Group

Computer Aided Rheological Characterization of Polymer Melts 1066H. H. Winter, University of Massachusetts at Amherst

•Present in a joint session.

ANTEC '96/X1X

The Feasibility of Obtaining MWD Information from theViscosity Data of Polymer Melts 1074Y.-M. Liu, M. T. Shaw, University of ConnecticutW. H. Tuminello, Dupont Experimental StationL. Bu, University of Alabama at Birmingham •The Effect of Viscous Heating in Capillary Rheometry 1080E. E. Rosenbaum, S. G. Hatzikiriakos, University of British ColumbiaDynamic Shear Deformation in On-Line Capillary Rheometry 1085A. Goettfert, E. O. Reher, M. Erbacher, GoettfertB. I. Nelson, Goettfert U.S.A.

W33—Applied Rheology Special Interest Group

An Off Line System for Polymer Characterization 1090V. Morrow, D. E. De Laney, Kayeness, Inc.Broad Spectrum On-Line Rheology 1095D. E. De Laney, V. Morrow, J. Greene, Kayeness, Inc.Impact of the Bagley and Rabinowitsch Corrections onCapillary Rheometer Measurements 1100S. J. Watson, R. L. Miller, Eastman Chemical CompanyMethod for Measurement of Shear Heating in Capillary Flows 1108J. C. Moller, Miami UniversityD. Lee, Rensselaer Polytechnic InstituteReview of Die Lip Build-Up in Plastics Extrusion 1113J. D. Gander, A. J. Giacomin, University of Wisconsin at MadisonRheological Behavior of Polystyrene/Blowing Agent Mixtures 1118R. Gendron, L. E. Daigneault, National Research Council of CanadaL.-M. Caron, Celfortec Inc.

H13—Applied Rheology Special Interest Group

The Effects of Branching, Molecular Weight and Molecular Topology on theUniaxial Elongational Viscoelastic Properties of Atactic Polystyrene 1124R. Ramsey, J. Hahnfeld, W. Pike, G. Welsh, C. Lewis, M. Zawisza, C. Carriere,The Dow Chemical CompanyR. Quirk, University of AkronElongational Viscosity of Polymer Melts 1129A. Pendse, J. R. Collier, Louisiana State UniversityUniaxial Extensional Flow Behavior of Fiber Filled Suspensions asAffected by Fiber Aspect Ratio and Concentration 1134T. J. Fiske, A. N. Wagner, R. Yazici, D. M. Kalyon, Stevens Institute of TechnologyThe Effect of Bubbles on the Creep/Recoil Behavior of Polystyrene Melts 1139W. H. Tuminello, The DuPont CompanyMelt Fracture of Controlled-Rheology Polypropylenes 1145J. J. Baik, C. Tzoganakis, University of Waterloo

H22—Applied Rheology Special Interest Group

Partly Viscoelastic Model of LDPE Melt Flow in Conical Dies 1152C. L. Lauridsen, E. M. Kjaer, Technical University of DenmarkThe Effects of Long Chain Branching on the Processing-Structure-Property Behavior of Polyethylene Blown Film Resins 1157A. M. Sukhadia, Phillips Petroleum CompanyNon-Newtonian Fluid Flow through Porous Filter Media 1164C. B. Wang, Eastman Chemical CompanyStudies of the Effect of Specific Chemical Interactionson Newtonian Suspension Rheology 1170C. C. White, M. T. Shaw, University of ConnecticutRheology of Polymer Reinforced Asphalts 1175I. I. Negulescu, W. H. Daly, Louisiana State University

XX/ANTEC '96

An Ultrasonic Technique for Monitoring the Interfacein Multi-Layer Polymer Flows 1182J. J. Magda, M. L. Parrott, C. L. Thomas, University of UtahD. R. Lawson, 3M Corporation

JOINING OF PLASTICS & COMPOSITES SPECIAL INTEREST GROUP

T39—Ultrasonics

Amplitude and Force Profiling: Studies in UltrasonicWelding of Thermoplastics 1188D. A. Grewell, Branson Ultrasonics CorporationEffect of Amplitude and Pressure Control on the Strength ofUltrasonically Welded Thermoplastics 1193F. He, Eastman Kodak CompanyA. Benatar, The Ohio State UniversityHigh Temperature Measurements of Ultrasonic Wave Speed Usinga Laser Ultrasonic Technique 1198K. D. Tackitt, J. W. Gillespie, Jr., J. N. Caron, J. B. Mehl, University of DelawareUltrasonic Welding of PES to Aluminium Alloy 1203R. J. Wise, A. D. H. Bates, TWIAnalysis of the Vibration and Viscoelastic Heating of Polystyrene Beams 1208W.-C. Ng, A. Benatar, The Ohio State University

W17—Adhesive Bonding

In situ Evaluation of the Diffusion of Epoxy and Amine in Thermoplastic Polymers 1214K. M. Immordino, S. H. McKnight, J. W. Gillespie, Jr., University of DelawareLaser Surface Modification of Polymers to EnhanceAdhesion, Part 1-Polyolefins 1219S. M. Tavakoli, S. T. Riches, TWIInterdiffusion in a Poly-Aryl-Ether-Ether-Ketone (PEEK)/Epoxy System 1225G. Rajagopalan, J. W. Gillespie, Jr., S. H. McKnight, University of DelawareFatigue of Adhesively Bonded Thermoplastics 1231A. Buchman, A. Sidess, H. Dodiuk, RAFAEL

W34—New Processes

Through-Transmission Infrared Welding of Polymers 1238R. A. Grimm, EWI Materials Joining TechnologyInfrared Welding of Polyethylene Pipes Using Radiant Heater 1245H. J. Yeh, Edison Welding InstituteSingle Mode Microwave Welding of Nylon 6/6 UsingConductive Polyaniline Films 1250C.-Y. Wu, S. Staicovici, A. Benatar, The Ohio State UniversityLaser Butt Welding of Semi-Crystalline Thermoplastics 1255H. Potente, J. Korte, University ofPaderbornNon-Contact Hot Plate Welding of Polypropylene 1260T. T. Lin, S. Staicovici, A. Benatar, The Ohio State University

H14—Process Evaluation

The Optimized Performance of Linear Vibration WeldedNylon 6 and Nylon 66 Butt Joints 1266V. Kagan, S.-C. Lui, G. R. Smith, AlliedSignal Inc.J. Patry, Branson Ultrasonics Corp.A Morphological Examination of Polypropylene Hot Plate Welds 1275S. M. Stevens, TWIOptimization of the Spin Welding Parameters for an Air Induction Part 1280J. Bauman, J. Park, Ford Motor Company

ANTEC '96/XXi

Fractal Analysis and Radiographic Inspection ofMicrowave Welded HDPE Bars .1285S. Staicovici, C.-Y. Wu, A. Benatar, Z. Bahman, The Ohio State University

H23—Joint Performance

The Problem of Stress Cracking in Heated Tool ButtWelded Tail Lights Made of PMMA and ABS 1292H. Potente, A. BruBel, University of PaderbornStress-Strain Analysis of an Adhesive-BondedTaper-Taper Joint between Two Composite Flat Plates 1297J. E. Helms, Albemarle CorporationC. Yang, S.-S. Pang, Louisiana State UniversityPart Nesting as a Plastic Snapfit Attachment Strategy 1302A. F. Luscher, The Ohio State UniversityA Matrix Approach to Developing Plastic Part Nesting 1307A. F. Luscher, The Ohio State University

VOLUME II—MATERIALSELECTRICAL & ELECTRONIC DIVISION

M4—Electronic Polymers

Application of Thin Films of Conjugated Polymers in Novel LED'sand Liquid Crystal "Light Valves" D14A. G. MacDiarmid, H.-L. Wang, R Huang, J. K. Avlyanov, P.-C. Wang, T. M. Swager, Z. Huang,University of PennsylvaniaA. J. Epstein, Y. Wang, D. D. Gebler, The Ohio State UniversityR. Shashidhar, J. M. Calvert, R. J. Crawford, Naval Research LaboratoryT. G. Vargo, Geocenters, Inc.K. J. Wynne, Office of Naval ResearchG. M. Whitesides, Y. Xia, Harvard UniversityConducting Polymers as Alignment Layers and Patterned Electrodes forTwisted Nematic Liquid Crystal Displays 1318J. B. Lando, J. A. Mann, Jr., A. Chang, C.-J. S. Tseng, Case Western Reserve UniversityD. Johnson, Kent State UniversityExchanging Light and Charges in Electronic Polymers 1323S. A. Jenekhe, X. Zhang, University of RochesterRole of Emeraldine Base Polymer in Symmetrically ConfiguredAC Light-Emitting (Scale) Devices 1327Y. Z. Wang, D. D. Gebler, A. J. Epstein, The Ohio State UniversityH. L. Wang, T. M. Swager, A. G. MacDiarmid, University of PennsylvaniaSolid-State Polymer Light-Emitting Electrochemical Cells 1332Q. Pei, Y. Yang, G. Yu, C. Zhang, A. Heeger, UMAX Corporation

M17— Electronic Polymers

Absorption Studies of Charged Excitations in ar-Sexithiophene 1338P. A. Lane, X. Wei, Z. V. Vardeny, University of UtahJ. Poplawski, E. Ehrenfreund, Technion-Israel Institute of TechnologyM. Ibrahim, A. J. Frank, Natl. Renewable Energy LaboratoryConjugated Polymer Surfaces and Interfaces: A New Determinationof the Electronic Band Structure of Emeraldine Base 1343P. Barta, Th. Kugler, W. R. Salaneck, Linkoping UniversityJ. Libert, J. L. Bredas, Universite de Mons-HainautA. P. Monkman, P. N. Adams, University of DurhamProcessibility of Electrically Conductive Polyaniline Due to Molecular Recognition 1348T. Vikki, O. Ikkala, Helsinki University of TechnologyL.-O. Pietila, VTT Chemical TechnologyH. Osterholm, P. Passiniemi, J.-E. Osterholm, Neste Oy

XXU/ANTEC '96