Title:
VISCOUS COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/021434
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a viscous composition which is capable of achieving a high viscosity over a pH range from acidic to weakly acidic conditions even in the presence of a polyvalent metal salt by means of an alkyl-modified carboxyl group-containing water-soluble copolymer.
A viscous composition, which is obtained by adjusting the pH of a liquid composition that contains a specific alkyl-modified carboxyl group-containing water-soluble copolymer, a polyvalent metal salt and water to 7.0 or more with use of a base, and then adjusting the pH of the resulting liquid composition to 2.5-6.5 with use of a carboxylic acid and/or a phosphorus oxo acid, is able to have a high viscosity.
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Inventors:
MURAKAMI RYOSUKE (JP)
ASHIDA TARO (JP)
MORIMITSU YUICHIRO (JP)
ASHIDA TARO (JP)
MORIMITSU YUICHIRO (JP)
Application Number:
PCT/JP2013/070920
Publication Date:
February 06, 2014
Filing Date:
August 01, 2013
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08L33/02; A61K8/365; A61K8/67; A61K8/81; A61Q1/14; A61Q19/00; C08K3/16; C08K3/20; C08K5/09; C08K5/098; C08K5/52
Domestic Patent References:
| WO2009084469A1 | 2009-07-09 | |||
| WO2007055354A1 | 2007-05-18 | |||
| WO2007055354A1 | 2007-05-18 |
Foreign References:
| JP2011213676A | 2011-10-27 | |||
| JPH0439312A | 1992-02-10 | |||
| JP2002332310A | 2002-11-22 |
Other References:
See also references of EP 2881431A4
Attorney, Agent or Firm:
Yamada, Iichiro et al. (JP)
Yamada 威 1 郎 (JP)
Yamada 威 1 郎 (JP)
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