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:
May. 01, 2012
Filed:
Apr. 22, 2009
Applicants:
Hideo Koyata, Atsugi, JP;
Miho Miyakawa, Atsugi, JP;
Inventors:
Hideo Koyata, Atsugi, JP;
Miho Miyakawa, Atsugi, JP;
Assignee:
W. R. Grace & Co.-Conn., Columbia, MD (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 24/26 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A concrete admixture composition concurrently using (A) a polycarboxylic acid type water-reducing agent for concrete, (B) a hydroxycarboxylic acid type water-reducing agent for concrete, and (C) a polysaccharide type thickening agent is offered, with the view to manufacture a high-performance and multi-functional concrete excelling in high fluidity, freshness retention, early strength, pumpability, material segregation resistance and anti-washout properties under water.