ABS composition having improved impact strength and weather agin

Details ABS composition having improved impact strength and weather agin ABS composition having improved impact strength and weather agin

1978-04-17

1979-06-05

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 336AQ, 260 4595R, 260880R, C08L 902, C08L 906

Patent

active

041573617

ABSTRACT:
Disclosed is a novel polybutadiene or butadiene-styrene copolymer based gum plastic having excellent impact strength and weather aging resistance and a method for its preparation. The ABS composition of the invention is a matrix of a polymer of at least one monoethylenically unsaturated monomer and a graft copolymer comprising a graftable rubber substrate which is formed from a mixture of an at least partially cross-linked pre-grafted polybutadiene or SBR spine latex, and a low-gel elastomer which has been at least partially cross-linked during the preparation of the product. Within certain ratios of cross-linked spine to low-gel spine, significant improvements in impact strength and weather aging resistance are achieved. In the method of preparation, the latex, monomers and low-gel elastomer, are converted directly to the final product by a conventional suspension polymerization process.

REFERENCES:
patent: 3222422 (1965-12-01), Cohen
patent: 3851014 (1974-11-01), Dalton

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