Title:
POLYCARBOXYLIC ACID COPOLYMER, CONCRETE ADMIXTURE, AND CONCRETE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/088529
Kind Code:
A1
Abstract:
Provided is a polycarboxylic acid copolymer capable of achieving, in a well-balanced manner, an excellent viscosity reduction effect, excellent pipe passing properties, and excellent water reduction properties, in a hydraulic powder-containing composition. Also provided is a concrete admixture including said polycarboxylic acid copolymer. Also provided is a concrete composition including said concrete admixture. This polycarboxylic acid copolymer includes, relative to 100% by mass of all structural units: 35%–88% by mass of a structural unit (I) derived from an unsaturated polyalkylene glycol monomer (a) indicated by a specific general formula; 1%–35% by mass of a carboxylic acid structural unit indicated by a specific general formula (II); and 11%–30% by mass of a carboxylic acid alkyl ester structural unit indicated by a specific general formula (III).
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Inventors:
SATO MASAHIRO (JP)
KAWAI HAJIME (JP)
SAKAMOTO NOBORU (JP)
KAWAI HAJIME (JP)
SAKAMOTO NOBORU (JP)
Application Number:
PCT/JP2017/040604
Publication Date:
May 17, 2018
Filing Date:
November 10, 2017
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
C08F290/06; C04B24/26; C04B28/02; C04B103/30
Foreign References:
| JP2013139351A | 2013-07-18 | |||
| JPH05294712A | 1993-11-09 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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