Polymer process

Details Polymer process Polymer process

1992-05-28

1993-12-07

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...

525314, 5253329, 525340, C08F 830, C08F26106, C08K 553

Patent

active

052684296

ABSTRACT:
An improved process for the production of linear block copolymers of vinylaromatic hydrocarbon and conjugated alkadiene comprises the coupling of living polymer chains containing at least one block of polymerized vinylaromatic hydrocarbon and at least one block of polymerized conjugated alkadiene wherein the coupling agent is an aromatic phosphonite.

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