Title:
GYPSUM DISPERSANT
Document Type and Number:
WIPO Patent Application WO/2013/137402
Kind Code:
A1
Abstract:
[Problem] To provide a gypsum dispersant and a gypsum additive that have an excellent improvement effect on the fluidity of a gypsum slurry even if raw gypsums of varying qualities are used, and that do not delay curing of the gypsum slurry. [Solution] This gypsum dispersant is characterized by containing: (A) a polycarboxylic acid polymer; and (B) a polymer obtained by reacting alkylene diamines and/or monoamines with an epihalohydrin as essential components.
Inventors:
IKEDA AKIRA (JP)
KOSHISAKA SEIICHI (JP)
SATO KATSUTOSHI (JP)
KOSHISAKA SEIICHI (JP)
SATO KATSUTOSHI (JP)
Application Number:
PCT/JP2013/057232
Publication Date:
September 19, 2013
Filing Date:
March 14, 2013
Export Citation:
Assignee:
TOHO CHEM IND CO LTD (JP)
YOSHINO GYPSUM CO (JP)
YOSHINO GYPSUM CO (JP)
International Classes:
C04B24/26; C04B24/12; C04B24/28; C04B28/14; C08F290/06; C08G65/24; C08L55/00; C04B103/40
Foreign References:
| JP2011136844A | 2011-07-14 | |||
| JPH06212059A | 1994-08-02 | |||
| JP2009034828A | 2009-02-19 | |||
| JP3067811B2 | 2000-07-24 | |||
| JP3733821B2 | 2006-01-11 | |||
| JPS641426B2 | 1989-01-11 | |||
| JP2007320786A | 2007-12-13 |
Other References:
See also references of EP 2826760A4
Attorney, Agent or Firm:
HANABUSA, Tsuneo et al. (JP)
Sepal Tsuneo (JP)
Sepal Tsuneo (JP)
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