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. 21, 2003
Filed:
Aug. 20, 2002
Applicant:
Inventors:
Jonathan David Wineland, Bedford, KY (US);
Sebastiao Walter Lopes da Cunha, Jr., Campinas, BR;
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 7/52 ;
U.S. Cl.
CPC ...
C04B 7/52 ;
Abstract
Hydraulic cement is made by a process in which (i) raw materials are crushed and ground, (ii) the crushed and ground raw materials and other components are burned and calcined to prepare a cement clinker, and (iii) the cement clinker is ground to a fine powder. A grinding aid is added to the cement clinker before it is ground in (iii). The grinding aid is an uncalcined direct process residue gel, which is an hydrolysis product of alkylhalodisilanes produced as by-products in the manufacture of alkylhalosilanes.