Patent · US Expired

N-vinyl-containing polymeric tanning materials

US6652597B1 · kind B1 · utility

5Cited by

5References

10Claims

0Family size

Assignee

BASF SE

Inventors

Anton Negele · Deidesheim, DE
Gerhard Wolf · Mannheim, DE
Axel Kistenmacher · Ludwigshafen, DE
Georg Igl · Backnang, DE

Key dates

Filing date	Oct 10, 2000
Grant date	Nov 25, 2003
Priority date	—
Expiry date	Oct 10, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC14C3/22
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

N-Vinyl-containing polymers obtainable by free-radically initiated polymerization of a monomer or monomer mixture of(A) from 5 to 100% by weight of an N-vinylamide or N-vinylamine,(B) from 0 to 95% by weight of monoethylenically unsaturated carboxylic acids having from 3 to 8 carbon atoms or their derivatives,(C) from 0 to 95% by weight of other N-vinyl and/or C-vinyl compounds and(D) from 0 to less than 10% by weight of other copolymerizable monomers,are useful in the form of aqueous solutions or dispersions as tanning materials for self-tanning, pretanning and cotanning of leather pelts and fur pelts and for retanning leather and fur.

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