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:
Mar. 26, 1985
Filed:
Sep. 08, 1983
Applicant:
Inventors:
Herbert Stutz, Karlsruhe, DE;
Gunter Eckert, Limburgerhof, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08G / ;
U.S. Cl.
CPC ...
524840 ; 524591 ;
Abstract
Aqueous dispersions of crosslinked polyurethane ionomers can be advantageously obtained by a method in which polyurethane prepolymers possessing salt groups and aliphatically and/or cycloaliphatically bonded terminal isocyanate groups, in a water-miscible organic solvent, are mixed with polyfunctional polyisocyanates, the resulting solution is dispersed in water and the organic solvent is evaporated off.