Title:
POLYCARBOXYLIC ACID COPOLYMER AND METHOD FOR PRODUCING THE SAME, AND ADDITIVE FOR INORGANIC PARTICLES AND CEMENT COMPOSITION INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2019137799
Kind Code:
A
Abstract:
To provide an additive for inorganic particles (cement additive) that can achieve desired fluidity even when the amount of addition to a cement composition is reduced, a polycarboxylic acid copolymer that can be used for the additive, and a method for producing the polycarboxylic acid copolymer, and provide a cement composition containing the additive for inorganic particles (cement additive).SOLUTION: A polycarboxylic acid copolymer has a structural unit (I) derived from a specific unsaturated polyalkylene glycol monomer (a), and a structural unit (II) derived from a specific unsaturated carboxylic acid monomer (b), characterized in having a specific trithiocarbonate structure.SELECTED DRAWING: Figure 1
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Inventors:
TOMIIE KIICHI
HIRATA TAKESHI
HIRATA TAKESHI
Application Number:
JP2018023229A
Publication Date:
August 22, 2019
Filing Date:
February 13, 2018
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND
International Classes:
C08F290/06; C08F2/38; C08F216/14; C08F220/04
Domestic Patent References:
| JP2008508384A | 2008-03-21 | |||
| JP2009001776A | 2009-01-08 | |||
| JP2017119758A | 2017-07-06 | |||
| JP2018529820A | 2018-10-11 |
Foreign References:
| WO2017124139A1 | 2017-07-27 | |||
| US20100105832A1 | 2010-04-29 |
Attorney, Agent or Firm:
Hatta International Patent Corporation