Copolymer and method for manufacture thereof

Abstract

Abstract A copolymer represented by the general formula: ##STR1## [wherein, A denotes an alkylene group of 2 to 4 carbon atoms, the --A--O-- a chain may have at least one oxy-alkylene unit bonded in any possible order, a denotes an integer of the value of 1 to 100, R 1 and R 2 independently denote a hydrogen atom or a methyl group, X and Y independently denote a monovalent metal atom, a divalent metal atom, an ammonium group, an organic amine group, or --B--O-- b R 3 (wherein, B denotes an alkylene group of 2 to 4 carbon atoms. the --B--O-- b chain may have at least one oxy-alkylene unit bonded in any possible order, b denotes 0 or an integer of the value of 1 to 100, and R 3 denotes a hydrogen atom or an alkyl group of 1 to 20 carbon atoms), Z denotes a structural unit derived from a copolymerizable vinyl monomer, m and n each denote 1 where X and Y are each a monovalent metal atom, an ammonium group, an organic amine group, or --B--O-- b R 3 or 2 where X and Y are each a divalent metal atom, and p, q, and r denote numbers such that 25≦p≦75, 25≦q≦75, and 0≦r≦50 are satisfied on condition that p+q+r equals 100, and it is provided that the structural units involved herein may be bonded in any possible order].

Inventors

• 👤 Tsuneo Tsubakimoto
• 👤 Masahiro Hosoido
• 👤 Hideyuki Tahara

Bibliographic Details