Conjugated diene/monovinylarene copolymers and preparation there

Details Conjugated diene/monovinylarene copolymers and preparation there Conjugated diene/monovinylarene copolymers and preparation there

1993-12-06

1995-01-24

Szekely, Peter

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524317, 524320, 524321, 524394, 524575, C08K 515, C08K 509, C08K 510, C08L 906

Patent

active

053843495

ABSTRACT:
A block copolymer comprising about 5 weight percent to about 95 weight percent monovinylarene monomer, about 95 to about 5 weight percent butadiene, and an effective amount of a thermal stabilizing agent selected from the group consisting of ascorbic acid, citric acid, disodium citrate, and mixtures thereof is provided. A process for stabilizing conjugated diene/monovinylarene block copolymer and articles prepared from such copolymers are also provided.

REFERENCES:
patent: 5013773 (1991-05-01), Nomura et al.
patent: 5063264 (1991-11-01), Nakajima
patent: 5292789 (1994-03-01), Ishida et al.

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