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. 17, 1984
Filed:
May. 21, 1982
Applicant:
Inventors:
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C14C / ; C14C / ; C14C / ; C14C / ;
U.S. Cl.
CPC ...
8 9416 ; 8 9417 ; 8 94 / ; 8 9421 ; 8 9427 ; 8 9432 ; 8 9433 ;
Abstract
What are disclosed are improved methods for the preparation of leather wherein, in one or more steps for preparing leather from limed animal skins or hides, including beamhouse operations such as deliming, bating, pickling, and degreasing to prepare unhaired tannable hides from animal skins or hides, and including subsequent tanning, retanning, and dyeing steps performed on said unhaired tannable hides, small amounts of a high polymeric water soluble cellulose ether or of an acrylic polymer are added to at least one of the treating baths involved in such method steps as a lubricant for said skins or hides.