Functional group-containing butadiene based impact modifier

Details Functional group-containing butadiene based impact modifier Functional group-containing butadiene based impact modifier

1996-09-20

1997-09-16

Zemel, Irina S.

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

Synthetic resins

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

525 83, 525285, 525292, 525301, 525303, 525310, 525296, C08L 6900

Patent

active

056682158

ABSTRACT:
The present invention provides a functional group-containing alkyl acrylate-butadiene-aromatic vinyl compound copolymer which is obtained from the following layers by emulsion graftlinking polymerization: an inner layer comprising polybutadiene or an aromatic vinyl compound-butadiene copolymer; a middle layer comprising an aromatic vinyl compound-an alkyl acrylate copolymer; and an outer layer comprising an alkyl acrylate-a functional group-containing vinyl compound copolymer. The functional group-containing alkyl acrylate-butadiene-aromatic vinyl compound copolymer can be incorporated into a PC/PBT alloy as an impact modifier, thus the impact strength of the modified alloy composition at room temperature and low temperatures can be increased effectively.

REFERENCES:
patent: 4677150 (1987-06-01), Chacko et al.
patent: 5455302 (1995-10-01), Saito et al.
patent: 5484846 (1996-01-01), Wittman et al.
patent: 5516842 (1996-05-01), Hoshino et al.
patent: 5565515 (1996-10-01), Ishiwa et al.

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