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:
Nov. 19, 1996
Filed:
Mar. 17, 1995
Applicant:
Inventor:
Dennis R DeWacker, Belle Mead, NJ (US);
Assignee:
National Starch and Chemical Investment Holding Corporation, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
10616281 ; 106804 ; 106805 ; 10620501 ; 1062061 ; 524-2 ; 536 56 ; 536 84 ; 536102 ;
Abstract
A water retention aid for use in cementitious and adhesive compositions is prepared as a blend of a polysaccharide, preferably high viscosity, such as cellulose, and an unmodified, cold-water-soluble starch. The water retention aid is used in the cementitious or adhesive composition at a preferred level of 0.25-0.5 parts per 100 parts of the dry cementitious or adhesive composition.