Dynamically cured thermoplastic olefin polymers and process for producing the same
AssigneeExxon Chemical Patents Inc.
InventorsHsien C. Wang, Kenneth W. Powers, Robert C. Puydak, Narayanaswami R. Dharmarajan
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Abstract
A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a paraalkylstyrene. A process for preparing the dynamically vulcanized composition is also provided.
Claims34
A thermoplastic composition comprising a dynamically vulcanized polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a paraalkylstyrene.
A process for preparing a vulcanized thermoplastic composition, which comprises the steps of:
- (a) blending a thermoplastic olefinic resin, an unvulcanized elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, and a vulcanization agent capable of vulcanizing said elastomeric halogen-containing copolymer;
- and
- (b) masticating and shearing the blend resulting from step (a) at vulcanization conditions for a time sufficient to produce a vulcanized thermoplastic composition.
Dependencies are inferred from the claim text.