Patent · US Expired

Coating compositions

US5312865A · kind A · utility

24Cited by

4References

18Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Rainer Hoefer · Goldkronach, DE
Roland Gruetzmacher · Wülfrath, DE
Gerhard Kaindl · Hilden, DE

Key dates

Filing date	Dec 15, 1992
Grant date	May 17, 1994
Priority date	—
Expiry date	Dec 15, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention is a coating composition containing an aqueous polyurethane dispersion wherein the polyurethane is prepared from a mixture of polycaprolactone diols and an isocyanate mixture having an NCO functionality of more than 1.5 wherein the ratio NCO:OH is from 0.9:1 to 2.5:1. The polyurethane also can contains functional components capable of salt formation in the aqueous solution. The coating composition is particularly useful for coating flexible substrates such as leather and flexible polymeric materials.

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