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:
Feb. 05, 1991
Filed:
Oct. 13, 1989
Applicant:
Inventors:
Georg Haubl, Linz, AT;
Willibald Scheuchenstuhl, St. Oswald, AT;
Assignee:
Chemie Linz Gesellschaft m.b.H., Linz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08G / ;
U.S. Cl.
CPC ...
524 30 ; 524 45 ; 525 5421 ; 525 5423 ; 525 56 ; 525 57 ;
Abstract
Absorbing polymer consisting of a polymer A which is an optionally modified polyvinyl alcohol or an optionally modified polysaccharide or a mixture of these, and of a polymer B which is a maleic anhydride homo- or copolymer having a hydrolysis time of 5 to 120 minutes, the anhydride groups being open and 0.005 to 5 mol % of the acid functions being esterified with hydroxyl groups of polymer A, and the remaining acid functions being present as free acid groups, as salts or as acid amide groups, an absorbing product containing this polymer and a process for their preparation.