Patent · US Expired

Copolyamide and its use for finishing leather and leather substitutes

US4126414A · kind A · utility

0Cited by

2References

3Claims

0Family size

Assignee

BASF SE

Inventors

Karl Fischer · Burns Lake, CA
Peter Horn · Heidelberg, DE
Guenter Eckert · Schifferstadt, DE
Franz Leppmeier · Stockach, DE

Key dates

Filing date	May 13, 1977
Grant date	Nov 21, 1978
Priority date	—
Expiry date	May 13, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G69/36
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A specific copolyamide and its use for finishing leather and leather substitutes, particularly those of polyurethane. A particular advantage of the copolyamide is its sealing effect counteracting the migration of dyes, plasticizers and fats, combined with other advantages such as good mechanical properties and the stability of the solutions.

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