Patent · US Expired

Highly pigmentable, liquid coating compositions

US4101496A · kind A · utility

13Cited by

5References

9Claims

0Family size

Assignee

Chemische Werke Huels Aktiengesellschaft · US

Inventors

Jorg Dorffel · Marl, DE
Werner Andrejewski · Dorsten, DE
Uwe Biethan · Marl, DE

Key dates

Filing date	Dec 2, 1975
Grant date	Jul 18, 1978
Priority date	—
Expiry date	Dec 2, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D167/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Liquid, highly pigmentable coating compositions containing little or no solvent and which are suitable for spray coating employ a binder consisting either of A. 45-10% by weight of an aminoplast, a low-molecular weight precursor thereof, or a mixture thereof, and B. 55-90% of an at least bifunctional polyester, or a mixture thereof, having predominantly hydroxy end groups, a degree of condensation of between 2.5 and 10.5 and a molecular weight of up to 1,000, and prepared by condensing an alcohol component consisting of 0-30 molar percent of one or more 3-6 carbon atom polyols having 3-4 hydroxy groups and 100-70 molar percent of a mixture of diols consisting of 33-90 molar percent of ethylene glycol and 67-10 molar percent of 1,2-propanediol, or a condensation product of A and B.

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