Foam polymer process

Details Foam polymer process Foam polymer process

B - Operations, Transporting

29

C

18/666

B29C 44/34 (2006.01) C08J 9/14 (2006.01)

Patent

CA 1202458

IMPROVED FOAM POLYMER PROCESS Abstract In the process of preparing a thermoplastic resin foam the improvement comprising extruding a molten resin-blowing agent combination from a high pressure region to a lower pressure atmosphere of carbon dioxide, water vapor or mixtures thereof.

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