Title: Solid dispersion containing water-soluble copolymer dispersion phase
Application Number: 85101102 Application Date: 1985.04.01
Publication Number: 1007612 Publication Date: 1987.01.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08F220/06,C09K7/02
Applicant(s) Name: Hoechst Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: LI LUOYING CUI XIAOGUANG
Abstract:
     The solid dispersion is drilling mud and cement paste containing copolymer as dispersion phase. The said copolymer is a kind of monomer copolymer such as: (a) methyl-propene acid or the derivation of methyl-propenoic acid. (b) ethenyl-sulfonic acid, methallyl-sulfonic acid or propenylic amide propenyl methylene radical sulfonic acid and (c) N-vinyl-monocarboxylic-amide.
Time: 6
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