Patent · US Expired

Epoxide resin-modified polyester coat with alkyd topcoat

US5460889A · kind A · utility

1Cited by

5References

15Claims

0Family size

Assignee

BASF SE

Inventors

Lutz-Werner Gross · Haltern, DE
Ulrich Poth · Munster, DE
Dieter Hille · Bensberg, DE
Klaus Weidemeier · Munster, DE

Key dates

Filing date	Jan 10, 1995
Grant date	Oct 24, 1995
Priority date	—
Expiry date	Jan 10, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31529
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A coating composition comprises an alkyd resin based topcoat and a water dilutable coating comprising an epoxy resin-modified polyester binder which is water-dilutable upon base neutralization of the free carboxyl groups and is prepared by the reaction of (A) a polyester containing (cyclo)aliphatic groups having at least six carbon atoms derived from (a.sub.1) a polycarboxylic acid with at least three carboxyl groups and/or (a.sub.2) a polyol with at least one carboxyl group, (a.sub.3) a polycarboxylic acid with two carboxyl groups and (a.sub.4) a polyol; and (B) a bisphenol epoxide resin.

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