Title:
CEMENT MIXING AGENT
Document Type and Number:
WIPO Patent Application WO/2017/099082
Kind Code:
A1
Abstract:
In the conventional methods, the performance of a syneresis inhibitor under high-temperature conditions is insufficient yet. Thus, the present invention provides a cement mixing agent having an excellent syneresis-inhibiting effect at a higher temperature. The cement mixing agent according to the present invention comprises a crosslinked product of a modified poly(vinyl alcohol)-type resin, and has a property such that the dissolution rate of 1 g of the crosslinked product of the modified poly(vinyl alcohol)-type resin in 1 litter of water at 70ºC is 50% or less.
Inventors:
SAKA TAKAHIRO (JP)
FURO CHIZUKO (JP)
MANDAI SHUSAKU (JP)
FURO CHIZUKO (JP)
MANDAI SHUSAKU (JP)
Application Number:
PCT/JP2016/086238
Publication Date:
June 15, 2017
Filing Date:
December 06, 2016
Export Citation:
Assignee:
NIPPON SYNTHETIC CHEM IND CO LTD (JP)
International Classes:
C04B24/26; C08F8/00; C08F8/28; C08F16/06; C09K8/487
Domestic Patent References:
| WO2015037672A1 | 2015-03-19 |
Foreign References:
| US20100314112A1 | 2010-12-16 | |||
| CN104263334A | 2015-01-07 | |||
| US6180689B1 | 2001-01-30 | |||
| US5594050A | 1997-01-14 | |||
| US20150133346A1 | 2015-05-14 | |||
| US7067000B1 | 2006-06-27 | |||
| JP2006249374A | 2006-09-21 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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