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US08835587B2 Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom 有权
催化剂体系,烯烃聚合方法和由其制备的聚合物组合物

Catalyst system, process for olefin polymerization, and polymer compositions produced therefrom
Abstract:
Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.
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