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:
Aug. 16, 1983
Filed:
Mar. 03, 1982
Applicant:
Inventors:
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C14C / ; C14C / ; C14C / ; C14C / ;
U.S. Cl.
CPC ...
8 9416 ; 8436 ; 8437 ; 8 9417 ; 8 94 / ; 8 9421 ; 8 9427 ; 8 9432 ; 8 9433 ;
Abstract
What is disclosed are improved methods for the preparation of leather wherein, in one or more steps for preparing leather from animal skins or hides, including beamhouse operations such as soaking, dehairing, opening of the hide structure, deliming, bating, pickling, and degreasing to prepare dehaired tannable hides from animal skins or hides, and including subsequent tanning, retanning, and dying steps performed on said tannable hides, a thickening agent is added to at least one of the treating baths involved in such method steps.