End-capped polymer chains, star and graft copolymers, and proces

Details End-capped polymer chains, star and graft copolymers, and proces End-capped polymer chains, star and graft copolymers, and proces

1988-09-12

1991-07-09

Lipman, Bernard

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524571, 524572, 524574, 524576, 524579, 524583, 524585, 525221, 525222, 5253317, 5253318, 5253337, 5253339, 525344, 525354, 525356, 525386, C08F 8/00

Patent

active

050306952

ABSTRACT:
Ziegler-Natta catalyzed polymer chains are end capped with at least one functional group-containing unit which is otherwise essentially absent from said polymer chain. The chains can be grafted to form graft copolymers and star copolymers. The compositions are useful as oil additives and in general purpose elastomer as well as thermoplastic polymer compositions.

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