Preparation of low molecular weight copolymer salts

Details Preparation of low molecular weight copolymer salts Preparation of low molecular weight copolymer salts

1980-12-29

1983-04-26

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...

525367, 525368, 525369, C08F 844

Patent

active

043813763

ABSTRACT:
A method for forming ionic copolymer salts from low molecular weight copolymer acids formed from ethylene and an alpha,beta-ethylenically unsaturated carboxylic acid having at least one carboxylic acid group, and cations having a valence of 1 to 3. The copolymer acid and the cation containing material are fed to a reaction vessel. The reaction vessel is maintained below atmospheric pressure, for at least a portion of the time, so that the oxygen content of the reaction vessel is minimized and volatile reaction products are removed. The reacting mixture is continually stirred or mixed within the reaction vessel. The temperature within the reaction vessel is controlled and maintained above the melting point of the polymer.

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