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:
Jun. 05, 1990
Filed:
Jan. 10, 1989
Applicant:
Inventors:
Assignee:
Basf Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C14C / ; C14C / ; C14C / ;
U.S. Cl.
CPC ...
8 9423 ; 8 94 / ; 8 9421 ; 427379 ; 427387 ;
Abstract
Leather, pelts and leather substitute materials are hydrophobized with a carboxyl-containing polysiloxane whose carboxyl groups are present in neutralized form in an aqueous phase in the absence of emulsifiers and without aftertreatment with mineral tanning agents.