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. 16, 1991
Filed:
Jan. 23, 1989
Applicant:
Inventor:
Klaus Heidel, Marl, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
527300 ; 527312 ; 527313 ; 527314 ;
Abstract
Water-absorbing and water-swellable polysaccharide graft polymers are prepared by inverse suspension polymerization of a polysaccharide with an ethylenically unsaturated monomer containing a carboxyl group followed by partial water removal and crosslinking.
Heidel, Klaus. (1991). Process for preparing water-absorbing and water-swellable polysaccharide (U.S. Patent No. 5032659). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5032659
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile