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:
Jul. 26, 1994
Filed:
Nov. 12, 1993
Applicant:
Inventors:
Bruce T Wright, Mt. Pleasant, SC (US);
Peter Schilling, Charleston, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106727 ; 106819 ; 106823 ; 524-2 ; 524-5 ;
Abstract
A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and a polyamidoamine additive, the additive being present in an amount sufficient to increase the bonding strength of the hardened mix. Generally, the additive is present in a total amount of about 0.025 to 0.25% by weight based upon the weight of the cement, preferably in an amount in the range of about 0.075 to 0.15% by weight.