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. 25, 1997
Filed:
Nov. 22, 1995
Applicant:
Inventors:
Eugene Paul Gosselink, Cincinnati, OH (US);
James Albert Cleary, Indian Springs, OH (US);
Robert Henry Rohrbaugh, Indian Springs, OH (US);
Margaret Robinson Tallmadge, Cincinnati, OH (US);
Shulin Zhang, West Chester, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
510475 ; 560 14 ; 528295 ;
Abstract
Soil release agents which comprise: an ester backbone comprising (1) units selected from dihydroxy or polyhydroxy sulfonate (e.g., a sulfoethyl ether of glycerin), a unit which is at least trifunctional whereby ester linkages are formed resulting in a branched oligomer backbone (e.g., glycerol), or mixtures thereof, (2) terephthaloyl unit, and (3) oxyalkyleneoxy unit; and one or more capping units (preferably anionic).