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. 07, 1998
Filed:
Aug. 07, 1996
Applicant:
Inventors:
Milind V Karkare, Newton, MA (US);
Chia-Chih Ou, Lexington, MA (US);
Craig T Walloch, Arlington, MA (US);
Ara A Jeknavorian, Chelmsford, MA (US);
Assignee:
W.R. Grace & Co.-Conn., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C04B / ;
U.S. Cl.
CPC ...
524400 ; 524650 ; 524-2 ; 106802 ; 106808 ; 106822 ;
Abstract
Additive which simultaneously provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement. An exemplary composition include calcium stearate and a flexural bond strength enhancing material comprising a polymer having a backbone to which are attached carboxyl cement anchoring groups. A cementious composition and method for enhancing water-repellency and flexural bond strength in a mortar are also disclosed.