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:
Oct. 31, 2006
Filed:
Jul. 13, 2004
Leslie A. Jardine, Salem, MA (US);
Charles R. Cornman, Maynard, MA (US);
David T. Geary, Hingham, MA (US);
Vijay Gupta, Woburn, MA (US);
Byong-wa Chun, Newton, MA (US);
Leslie A. Jardine, Salem, MA (US);
Charles R. Cornman, Maynard, MA (US);
David T. Geary, Hingham, MA (US);
Vijay Gupta, Woburn, MA (US);
Byong-Wa Chun, Newton, MA (US);
W.R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
A chromium VI reducing composition comprising particles of solid material selected from the group consisting of iron (II) sulfate and tin sulfate, the particles being substantially uniformly dispersed within a liquid carrier. Methods for modifying hydratable cementitious materials using the chromium reducing composition are also disclosed and provide advantages over dry powder or dissolved forms of sulfate compositions when used in cement manufacturing.