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:
Apr. 17, 2018
Filed:
Nov. 21, 2013
Applicant:
Wuji Yin, Changsha, CN;
Inventor:
Wuji Yin, Changsha, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 14/10 (2006.01); C04B 16/00 (2006.01); C04B 28/04 (2006.01); C04B 18/16 (2006.01); C04B 40/00 (2006.01);
U.S. Cl.
CPC ...
C04B 16/00 (2013.01); C04B 18/162 (2013.01); C04B 28/04 (2013.01); C04B 40/0039 (2013.01); Y02W 30/94 (2015.05); Y02W 30/95 (2015.05);
Abstract
The present disclosure relates to a bentonite modifier, comprising a water-soluble thiosulfate, a water-soluble alcohol compound, and a water-soluble amine compound, wherein the amounts of thiosulfate, the alcohol compound, and the amine compound are in the ratio of (0.3˜1):(0.3˜1):(0.3˜1). The present disclosure further relates to a bentonite-containing cement additive capable of resisting permeation and salt corrosion, comprising bentonite and said modifier, wherein the content of the bentonite modifier is 0.2˜5% of the bentonite by weight. Meanwhile, the present disclosure also provides use of the modified bentonite.