The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2016
Filed:
Mar. 14, 2013
Applicants:
Toho Chemical Industry Co., Ltd., Tokyo, JP;
Yoshino Gypsum Co., Ltd., Tokyo, JP;
Inventors:
Assignees:
Toho Chemical Industry Co., Ltd., , JP;
Yoshino Gypsum Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 16/04 (2006.01); C04B 28/14 (2006.01); C08G 65/24 (2006.01); C08L 55/00 (2006.01); C04B 40/00 (2006.01); C04B 24/28 (2006.01); C04B 103/40 (2006.01); C08L 33/00 (2006.01);
U.S. Cl.
CPC ...
C04B 16/04 (2013.01); C04B 24/281 (2013.01); C04B 28/14 (2013.01); C04B 40/0039 (2013.01); C08G 65/24 (2013.01); C08L 55/00 (2013.01); C04B 2103/408 (2013.01); C08L 33/00 (2013.01);
Abstract
There is provided a gypsum dispersant and a gypsum additive that improve the fluidity of gypsum slurry even if gypsum raw materials used are different in quality and that do not induce delay of curing of gypsum slurry. A gypsum dispersant, including: (A) a polycarboxylic acid polymer; and (B) a polymer obtained by a reaction of an alkylene diamine and/or a monoamine and an epihalohydrin as essential components.