Preparation of salts of low molecular weight copolymers...

Details Preparation of salts of low molecular weight copolymers... Preparation of salts of low molecular weight copolymers...

C - Chemistry, Metallurgy

08

F

402/310, 402/517

C08F 8/44 (2006.01)

Patent

CA 1244195

ABSTRACT OF THE INVENTION PREPARATION OF SALTS OF LOW MOLECULAR WEIGHT COPOLYMERS USING METAL OXIDES 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 oxides of Group II metals. The copolymer acid and the metal are fed to a reaction vessel. The copolymer acid and the metal oxide are mixed at a temperature between the melting point of the copolymer acid and 20°C above the melting point of the copolymer acid. The reaction is conducted at a reaction tempera- ture which is from 30°C greater than the melting point of the copolymer acid to 300°C.

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