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:
Feb. 22, 2000
Filed:
Apr. 12, 1999
Karen Ann Gruber, Hamilton, NJ (US);
John Hen, Macon, GA (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
In one embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan comprises spray-dried metakaolin. In another embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan is characterized as comprised of agglomerated beads of microparticles, the agglomerated beads having a median diameter of at least about 10 microns and the microparticles having a median diameter of about 5 microns or less.