High impact polystyrene blend compositions

Details High impact polystyrene blend compositions High impact polystyrene blend compositions

1980-04-30

1981-12-29

Ziegler, J.

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

Synthetic resins

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

525271, 525272, C03F29300

Patent

active

043083587

ABSTRACT:
High impact polystyrene compositions are prepared by the intimate melt mixing of a styrene polymer and a particular AB two-block copolymer. The A block is a polymer of a monoalkenyl arene having a specified molecular weight range and the B block is a butadiene polymer block having a 1,2 vinyl content of greater than about 20 percent.

REFERENCES:
patent: Re27145 (1971-06-01), Jones
patent: 3429951 (1969-02-01), Childers
patent: 3485894 (1969-12-01), Porter
patent: 3810957 (1974-05-01), Lunk
patent: 3830880 (1974-08-01), LaMare
patent: 3907931 (1975-09-01), Durst
patent: 4107236 (1978-08-01), Naylor et al.
patent: 4145376 (1979-03-01), Backe et al.

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