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:
Mar. 25, 2014
Filed:
Mar. 04, 2010
Roberta Gamarino, Casale Monferrato, IT;
Licia Trimarco, Saronno, IT;
Claus Reineking, Waldenbuch, DE;
Roberta Gamarino, Casale Monferrato, IT;
Licia Trimarco, Saronno, IT;
Claus Reineking, Waldenbuch, DE;
Clariant Finance (BVI) Limited, Tortola, VG;
Abstract
Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning with a tanning agent (A) of a formula (I), Wherein Hal signifies fluorine or chlorine, R1 signifies hydrogen, C-alkyl or an alkyleneoxy radical of a formula (Ia), —(—Calkylene-O—)—H (Ia), R2 signifies C--alkyl or C--alkoxy, m, signifies 1 or 2, n signifies 0 or 1, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step, the invention relates to the defined tanning process, particular tanning agent compositions, the use of the tanned leather, skins or pelts for further processing and the produced tanned and optionally further processed leather, skins or pets.