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:
Apr. 02, 2002
Filed:
Apr. 29, 1998
Applicant:
Inventors:
Son Nguyen Kim, Hemsbach, DE;
Karin Sperling, Neustadt, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/832 ; C08G 1/840 ; C08G 1/838 ; C08J 3/03 ; A61K 7/06 ;
U.S. Cl.
CPC ...
C08G 1/832 ; C08G 1/840 ; C08G 1/838 ; C08J 3/03 ; A61K 7/06 ;
Abstract
The present invention relates to water-soluble or water-dispersible polyurethanes of a water-dispersible polyurethane prepolymer having terminal isocyanate groups and a primary or secondary amine having at least one ionogenic or ionic group, and to the salts thereof. The novel polyurethanes can be used as auxiliaries in cosmetology and pharmacy and, in particular, as hair lacquers having enhanced ease of washoff.