Method for producing a silicone rubber and thermoplastic...

B - Operations – Transporting – 29 – C

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B29C 45/16 (2006.01) C08J 5/00 (2006.01) C08J 7/04 (2006.01) C08L 83/04 (2006.01)

Patent

CA 1291609

TITLE: METHOD FOR PRODUCING A SILICONE RUBBER AND THERMOPLASTIC RESIN COMPOSITE Abstract Composites comprising at least one layer of a thermoplastic organic resin and least one layer of a cured silicone rubber can be prepared by injecting a thermoplastic resin into a mold cavity, allowing the resin to harden, injecting a curable liquid silicone rubber composition into a mold cavity that is partially occupied by the hardened thermoplastic resin and then curing the liquid silicone rubber composition. The liquid silicone rubber composition is cured at a temperature from 25 degrees C. up to and including the softening point of the thermoplastic resin. In a preferred embodiment the curable liquid silicone rubber composition is maintained at a temperature of from -60 to +5 degrees C. prior to being injected into the mold cavity.

536904

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