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:
Feb. 04, 2020
Filed:
Dec. 06, 2016
Applicant:
The Nippon Synthetic Chemical Industry Co., Ltd., Osaka, JP;
Inventors:
Assignee:
THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); C04B 28/02 (2006.01); C09K 8/42 (2006.01); C04B 24/26 (2006.01); C08F 8/28 (2006.01); C08F 16/06 (2006.01); E21B 43/29 (2006.01); C08F 8/46 (2006.01); C08K 5/092 (2006.01);
U.S. Cl.
CPC ...
C04B 24/2623 (2013.01); C08F 8/28 (2013.01); C08F 16/06 (2013.01); E21B 43/29 (2013.01); C08F 8/46 (2013.01); C08K 5/092 (2013.01);
Abstract
A cement admixture includes a crosslinked product of a modified polyvinyl alcohol-based resin, wherein the dissolution rate of 1 g of the crosslinked product of a modified polyvinyl alcohol-based resin for 1 liter of water at 70° C. is 50% or less.