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:
Oct. 25, 1988
Filed:
Apr. 17, 1987
Applicant:
Inventors:
Joseph V Sinka, Mendham, NJ (US);
Dinshaw F Bardoliwalla, Randolph, NJ (US);
Jose L Villa, Bridgewater, NJ (US);
Edwin L Kelley, Succasunna, NJ (US);
Albert L Resnick, Edison, NJ (US);
Assignee:
Henkel Corporation, Ambler, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524559 ; 5263182 ;
Abstract
Copolymers of (1) from about 80% to about 98% by weight of acrylic acid and (2) from about 2% to about 20% by weight of itaconic acid and having a weight average molecular weight of between about 100,000 to about 800,000 and which are at least water dispersible are useful as retention aids for paper coating compositions.