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. 18, 1989
Filed:
Oct. 08, 1987
Applicant:
Inventor:
William A Sweeney, Larkspur, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01F / ; B01F / ; B01J / ;
U.S. Cl.
CPC ...
252312 ; 162158 ; 25217421 ; 252351 ; 252356 ; 252D / ;
Abstract
A nonionic emulsifier derived from mono-ester reaction products of substituted succinic anhydride. There is also disclosed a stable substituted succinic anhydride/nonionic emulsifier composition, a method for imparting water repellency to surfaces containing groups reactive to anhydrides, and a method for the sizing of paper using said composition.