Patent · US Expired

Method for removing horn substances from animal skin

US7250062B2 · kind B2 · utility

1Cited by

6References

14Claims

0Family size

Assignee

BASF SE

Inventors

Hans-Georg Lemaire · Schifferstadt, DE
Tilman Taeger · Seeheim-Jugenheim, DE
Gunther Pabst · Neumarkt i.d.OPf., DE
Philippe Lamalle · Lambsheim, DE
Michael Breuer · Darmstadt, DE
Burkhard Kroeger · Schifferstadt, DE
Thomas Subkowski · Schriesheim, DE

Key dates

Filing date	Oct 14, 2003
Grant date	Jul 31, 2007
Priority date	—
Expiry date	Oct 14, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC14C1/065
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for removing horn substances from animal skin. The method is characterized in that animal skins are treated in an aqueous bath containing between 0.05 and 5 wt. %, in relation to the weight of the salt, of at least one compound of general formula I or the corresponding alkali metallic salts or alkaline-earth metallic salts thereof or ammonium or phosphonium salts. The aqueous bath also comprises at least one compound which catalyses the hydrolysis of peptide compounds

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.