High impact polystyrene composition

Details High impact polystyrene composition High impact polystyrene composition

1976-10-20

1979-03-20

DeBenedictis, Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260877, 260879, 260880R, 260880B, 260886, 260892, 260894, C08L 5302

Patent

active

041453760

ABSTRACT:
A composition comprising a mixture of a styrene polymer, a rubbery dienic polymer and a sequenced copolymer of styrene and a diene, the total styrene polymer content which includes the free polystyrene and the polystyrene present in the sequenced copolymer is between 50 and 99% by weight of the composition, the total rubber content, which include the rubbery dienic polymer and the dienic polymer present in the sequenced copolymer, is between 1 and 50% by weight of the composition, the amount of sequenced copolymer being such as to bring to the composition from 3 to 90% by weight of the total rubber in the composition.

REFERENCES:
patent: 3678134 (1972-07-01), Middlebrook
patent: 3689595 (1972-09-01), Gwinn
patent: 3766114 (1973-10-01), Walker et al.
patent: 3906057 (1975-09-01), Durst
patent: 3907930 (1975-09-01), O'Grady
patent: 3907931 (1975-09-01), Durst
patent: 3936365 (1976-02-01), Saunders et al.
patent: 4048254 (1977-09-01), Hillier et al.

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