Modified impact-resistant vinylaromatic copolymers

Details Modified impact-resistant vinylaromatic copolymers Modified impact-resistant vinylaromatic copolymers

1989-12-28

1990-09-25

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526338, 525 64, 525 67, 525 69, 525148, 525175, 525316, C08F22044

Patent

active

049594346

ABSTRACT:
Modified impact-resistant vinylaromatic copolymers containing from 2 to 10% by weight of an ethylenically unsaturated nutrile and from 0 to 30% by weight of alpha-methyl-styrene and having a gel content higher than 23%, a cracking resistance, in an olive oil/oleic acid mixture under a load of 10 MPa, higher than 100 min., and a melt index below 1.5 g/10 minutes.

REFERENCES:
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patent: 2450028 (1948-09-01), Weber et al.
patent: 2459126 (1949-01-01), Clifford
patent: 2713562 (1955-07-01), Reid
patent: 2713566 (1955-07-01), Reid
patent: 2854439 (1958-09-01), Slocombe et al.
patent: 3118854 (1964-01-01), Hess, Jr. et al.
patent: 3956246 (1976-05-01), Griffith et al.

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