Supported catalyst for producing syndiotactic styrenic polymer

Details Supported catalyst for producing syndiotactic styrenic polymer Supported catalyst for producing syndiotactic styrenic polymer

2006-03-07

2006-03-07

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S129000, C526S130000, C526S154000, C526S156000, C526S347000, C526S904000, C502S062000, C502S087000, C502S109000, C502S119000, C502S120000, C502S150000, C502S152000, C502S154000

Reexamination Certificate

active

07009012

ABSTRACT:
The present invention provides a supported catalyst comprising (A) a polymer (B) a supporter, (C) a transition metal compound, and optionally (D) (a) a compound which can form an ionic complex by the reaction with the transition metal compound or (b) a specific oxygen-containing compound, and (E) an alkylaluminum compound. The supported catalyst according to present invention, which has a high activity, can be used for preparing a styrenic polymer with a high syndiotacticity. The supported catalyst can be used in combination with a cocatalyst, preferably an alkyl aluminoxane.

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