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:
Mar. 17, 2015
Filed:
Sep. 10, 2014
Applicants:
Leslie A. Jardine, Burlington, MA (US);
Charlotte Porteneuve, New York, NY (US);
Gerard Blond, Lille, FR;
Inventors:
Leslie A. Jardine, Burlington, MA (US);
Charlotte Porteneuve, New York, NY (US);
Gerard Blond, Lille, FR;
Assignee:
W. R. Grace & Co.-Conn., Columbia, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 7/52 (2006.01); C04B 16/00 (2006.01);
U.S. Cl.
CPC ...
C04B 16/00 (2013.01);
Abstract
Compositions and methods for increasing grinding efficiency of cement, cement clinker, raw materials for cement, and other inorganic particles. Use of biomass-derived polyols such as diols, triols, or mixtures thereof, optionally with a conventional grinding aid, cement quality improver, and/or hexavalent chromium reducer, are believed to provide less risk of sludging when compared to glycerides obtained from fossil fuel sources.