Blowing Agents and Foaming Processes 2002

Foaming is a large area of the plastics processing industry and the possibilities grow every year through the introduction of new products, processes and systems. The advances in the industry are clearly documented by the high numbers of patent applications for products or processes which are filed every year. Improvements in screw design, gas dosing equipment and modifications are other important advances in the machinery used in the processes. The fourth Blowing Agents and Foaming Processes Conference was held in Heidelberg, Germany and was dedicated to the critical role of blowing agents in foamed plastics and rubber. The two day conference brought together major blowing agent manufacturers and suppliers, foaming process providers and academia to present an insight into the latest industrial progress and research for foam generation. Reports were presented on new co-injection moulding, structural foam, micro cellular and extrusion processes. Theoretical presentations provided a good overview of the physical properties, effects, performance, and function of blowing agents. List of Papers

• "Hydrocarbon-Blown Formulations for Appliances and Rigid Panels: Available Solutions for Specific Local Regulations"
  Christian Cairati & Davide Lucca, Cannon AFROS SpA, Italy
• "Extrusion of Thermoplastic Foams with CO2 as a Blowing Agent"
  Robert Heinz & Johannes Lorenz, IKV Aachen, Germany
• "Development of New High Temperature Chemical Foaming Agents"
  Gunther Luebke & Marcel Weisner, Clariant Masterbatch GmbH & Co, Germany
• "Effects of the Die Geometry on the Cell Nulceation of Microcellular PS Foams Blown with CO2"
  Chul Park, University of Toronto, USA
• "HCF-365mfc Foaming Agent Blends"
  Lothar Zipfel, Solvay Fluor und Derivative GmbH, Germany
• "EnovateTM 3000 Blowing Agent - A Versatile and Cost Effective Blowing Agent Technology for Rigid Foam"
  Mary Bogdan, Honeywell Specialty Chemicals, USA
• "Latest Develoment with Structural Foam"
  Helmut Eckardt, Battenfeld Injection Moulding Technology, Germany
  (Paper unavailable at time of print)
• "New Developments in MuCell Microcellular Foam Molding Technology and Commercial Applications"
  Robert Janisch, Trexel Inc, USA
• "Simulation of Polyolefine Foam Parameters as Prediction for Cable Production Limits"
  Horst Scheid, Siebe Engineering, Germany
• "Foam Extrusion of PS Blown with HFC-134a - Impact on Screw Design and Processing Conditions"
  Richard Gendron, National Research Council of Canada, USA
• "Feedblock Technologies for Foam Core Products"
  Josef Dobrowsky, Cincinnati (CET) Extrusion GmbH, Austria
• "The Use of Chemical Blowing Agents in the Rotational Moulding of Plastics"
  Mark Kearns, PPRC Belfast, UK
• "An Overview of the Technical Advantages of Physically XL PO Foams"
  Mark Hennessy, Sekisui UK Ltd, UK
• "Crosslinking of LDPE in the Presence of Polyfunctional Monomers to Modify Matrix Properties and CYCLE times"
  Coswald Sipaut & Dr Geoff Sims, Umist /Universiti Sains Malaysia, UK
• "The Obtaining of Polyurethanes with Uresa Groups by the Pseudoforpolymer Method"
  N. I. Koltsov, Chuvash State University, Russia
  (Paper unavailable at time of print)
• "The Effect OF Calcium Carbonate Particle Size on Ldpe Foam Morphology"
  Denis Rodrigue & Ryan Gosselin, University Laval, Canada
• "A New Low Cost Injection Moulding System that Reduces Product Costs"
  Anton Hagen & Joseph McRoskey, Spirax Europe BV, The Netherlands
• "A Foam Extrusion Process with 'Woodtruder' "
  Gerhard Folie, Davis Standard GmbH, Germany
• "Improved Foam Extrusion Productivity - a New Screw Design Concept - Turbo-Screws"
  David Fogarty, Plastics Engineering Associated Licencing, Inc, USA
• "Effects of Recycling on the Rheological Properties and and Foaming Behaviors of Branched PP"
  Chul Park, University of Toronto, USA
• "The Influence of Elongational Properties of the Melt on the Morphology of PES and PPE Cellular Materials"
  Frank Wöllecke, Universitaet Bayreuth, Germany
• "Innovative Foaming Technologies"
  Michael Reedy, Reedy International Corp, USA
• "Melt Strength Analysis for Extruded Polyolefin Foam Development"
  Shau-Tarng Lee, Sealed Air Corp, USA

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