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:
Aug. 17, 2021
Filed:
Dec. 16, 2019
Applicant:
Protocol Environmental Solutions, Inc., Coquitlam, CA;
Inventor:
Sergio Vitomir, New Westminster, CA;
Assignee:
PROTOCOL ENVIRONMENTAL SOLUTIONS, INC., Coquitlam, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 41/46 (2006.01); C07C 279/02 (2006.01); C04B 41/00 (2006.01); C07C 277/00 (2006.01); C23F 1/14 (2006.01); C23F 1/46 (2006.01);
U.S. Cl.
CPC ...
C04B 41/46 (2013.01); C04B 41/009 (2013.01); C07C 277/00 (2013.01); C07C 279/02 (2013.01); C23F 1/14 (2013.01); C23F 1/46 (2013.01);
Abstract
Compositions and methods are presented that selectively dissolve calcium from a variety of cementitious materials without dissolving or otherwise degrading calcium silica hydrate (CSH). Preferably, contemplated compositions comprise guanidine bisulfate hydrochloride, which can be prepared from a reaction of urea, hydrochloric acid, and sulfamic acid. Therefore, it is especially contemplated that the compositions contemplated herein are particularly suitable to clean or otherwise condition surfaces of cured concrete, Portland cement-based material, or an aggregate containing CSH.