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:
May. 10, 1983
Filed:
Apr. 09, 1981
Applicant:
Inventors:
Alton J Gasper, Minneapolis, MN (US);
James N Wells, Cottage Grove, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
524767 ; 521117 ; 521904 ; 521905 ; 528 49 ; 528905 ;
Abstract
The cure time of polyurethane prepolymer curable with water to form polyurethane hydrogel is prolonged by the addition to the water of certain micelle-forming adducts which substantially extend the cure time.