C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 210/04 (2006.01) C08F 212/08 (2006.01) C08F 214/16 (2006.01) C08J 3/24 (2006.01) C08L 21/00 (2006.01) C08L 23/10 (2006.01) C08L 23/14 (2006.01) C08L 23/16 (2006.01)
Patent
CA 2274324
Random propylene thermoplastic copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Semi-crystalline polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic polypropylene copolymers are different from conventional Ziegler-Natta propylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic propylene copolymers and those modified with conventional Ziegler-Natta propylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.
Abdou-Sabet Sabet
Datta Sudhin
Ellul Maria D.
Finerman Terry
Gadkari Avi
Advanced Elastomer Systems L.p.
Exxon Chemical Patents Inc.
Mcfadden Fincham
LandOfFree
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