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:
Sep. 20, 2016
Filed:
Jan. 03, 2013
Stahl International B.v., Waalwijk, NL;
Roberta Gamarino, Casale Monferrato, IT;
Licia Trimarco, Saronno, IT;
Maurizio Quaglierini, Chianni, IT;
Claus Reineking, Waldenbuch, DE;
STAHL INTERNATIONAL B.V., Waalwijk, NL;
Abstract
A process for the production of fat-liquored, tanned leather or pelt is provided. The process comprises the steps of fat-liquoring and tanning, wherein an animal hide, skin or pelt is fat-liquored with a substituted acylaminopolyorganosiloxane (A) in the presence of a surfactant or surfactant mixture (B), which is an anionic or nonionic surfactant or mixture of anionic or/and non-ionic surfactants, before, during or/and after tanning, wherein the substituted acylaminopolyorganosiloxane (A) is a polyorganosiloxane containing substituted acylamino groups linked to silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo-[alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges. Also provided are tanned pelt or leather, certain substituted acylaminopolyorganosiloxanes (A') and related processes and compositions.