Dynamically cured thermoplastic olefin polymers and process for producing the same
First Claim
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1. A thermoplastic composition comprising a dynamically vulcanized polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C4 to C7 isomonoolefin and a paraalkylstyrene.
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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 C4 to C7 isomonoolefin and a paraalkylstyrene. A process for preparing the dynamically vulcanized composition is also provided.
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34 Claims
- 1. A thermoplastic composition comprising a dynamically vulcanized polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C4 to C7 isomonoolefin and a paraalkylstyrene.
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20. A process for preparing a vulcanized thermoplastic composition, which comprises the steps of:
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(a) blending a thermoplastic olefinic resin, an unvulcanized elastomeric halogen-containing copolymer of a C4 to C7 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. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification