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, 1980
Filed:
Aug. 18, 1978
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Bayerwerk, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03G / ;
U.S. Cl.
CPC ...
8 9419 ; 260 / ; 521158 ; 528 44 ; 528 48 ;
Abstract
This invention relates to water-soluble, cationic hydrophilic oligourethanes free from isocyanate groups and containing methylol groups and to the use thereof for the tanning, pre-tanning or re-tanning of pelts or pre-tanned leather and as dyeing auxiliaries.