Process for producing carboxyl-containing polymer composition, and carboxyl-containing polymer composition

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United States of America Patent

PATENT NO 9234053
APP PUB NO 20130131299A1
SERIAL NO

13813357

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Abstract

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A process is disclosed for producing a carboxyl-containing polymer composition that allows the possibility of obtaining a carboxyl-containing polymer composition which exhibits excellent dispersibility in water or the like, has a viscosity increasing to a lower degree compared to the viscosity of a neutralized viscous liquid using an additive-free carboxyl-containing polymer, and has a high degree of transparency in a neutralized viscous liquid thereof. A carboxyl-containing polymer composition is obtained by polymerizing a monomer containing an α,β-unsaturated carboxylic acid as a main component in a presence of a polyol (iso)stearic acid ester. A polyol in the polyol (iso)stearic acid ester is a polyol selected from a specific group, and the polyol (iso)stearic acid ester is used in the polymerization in an amount of 0.2 to 7 parts by mass based on 100 parts by mass of the α,β-unsaturated carboxylic acid.

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Patent Owner(s)

  • SUMITOMO SEIKA CHEMICALS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Morimitsu, Yuichiro Hyogo, JP 14 51
Murakami, Ryousuke Hyogo, JP 2 2
Suzuki, Masahiro Hyogo, JP 498 6849
Takemori, Shinichi Hyogo, JP 7 221

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