Patent · US Expired

Dispersion of post-curable coating compounds

US5738912A · kind A · utility

11Cited by

6References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Eberhard Konig · Kronberg, DE
Detlef-Ingo Schutze · Recklinghausen, DE
Josef Pedain · Cologne, DE

Key dates

Filing date	Dec 11, 1996
Grant date	Apr 14, 1998
Priority date	—
Expiry date	Dec 11, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC14C11/006
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for coating textiles and/or leather with an aqueous dispersion comprising (A) a mixture of (i) a urethane-containing blocked NCO prepolymer having a number average molecular weight of 2000 to 10,000, a content of blocked isocyanate groups (calculated as NCO) of 0.5 to 5 wt. %, an ethoxy group content of 2 to 50 wt. %, an ionic group content of 5 to 30 meq per 100 g of the prepolymer, and PA1 (ii) a polyamine having (cyclo)aliphatically bonded primary and/or secondary amino groups, wherein the equivalent ratio of blocked NCO groups of component (i) to amino groups of component (ii) is 1:0.9 to 1:1.2, and (B) an aqueous phase.

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