Patent ID: 7183427
Filing Date: 2007-02-27
Classification: C07C

Abstract:
1. A method for manufacturing metal salts of radical-polymerizable compounds with a reduced amount of aqueous components by subjecting an aqueous solution of a material selected from the group consisting essentially of an alkali-metal salt, alkali earth-metal salt, and a zinc salt of a radical-polymerizable compound (A) selected from the group consisting of a compound represented by the following general formula(1): R 1— CH═CR 2 —COOH (wherein R 1 designates a hydrogen atom, an alkyl group or a phenyl group, and R 2 designates a methyl group or a hydrogen atom), a compound represented by the following general formula (2):R 1 —CH═CR 2 —R 3 —COOH wherein R 1 and R 2 are the same as defined above, and R 3 designates a phenylene group, a compound represented by the following general formula (3):R 1 —CH═CR 2 —SO 3 H wherein R 1 and R 2 are the same as defined above, and a compound of the following general formula (4) :R 1 —CH═CR 2 —R 3 —SO 3 H wherein R 1 , R 2 , and R 3 are the same as defined above, to heating under a reduced pressure in the presence of (B) an aqueous polymerization inhibitor for removal of aqueous components by distillation from aforementioned compounds (A).