Production of impact-resistant styrene polymers

Details Production of impact-resistant styrene polymers Production of impact-resistant styrene polymers

1981-04-09

1984-02-21

Michl, Paul R.

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

Synthetic resins

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

525316, C08F27902

Patent

active

044330995

ABSTRACT:
Impact-resistant modified styrene polymers having the characteristics: molecular weight M.sub.v 150,000 to 170,000; gel content exceeding 22%; degree of swelling of 11.5 to 13.5 and a mean gel particle diameter of 1.7 to 4.5 microns are produced by continuously polymerizing a styrene solution of polybutadiene, possibly in the presence of diluents, by means of a cascade consisting of at least three continuous stirred tank reactors, at rising temperatures and in the presence of organic peroxide initiators. The process steps are carried out as follows:

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Modern Plastics, Donald F. Doehnert et al., "Evaluation of Organic Peroxides from Halflife" 2/59, pp. 142-146.

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