Patent · US Expired

Powdered thermosetting composition for coatings

US6844072B2 · kind B2 · utility

2Cited by

2References

23Claims

0Family size

Assignee

Surface Specialties, S.A. · BE

Inventors

Luc Moens · Sint-Genesius-Rode, BE
Nele Knoops · Brussels, BE
Daniel Maetens · Brussels, BE

Key dates

Filing date	Dec 17, 2001
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Dec 17, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to powdered thermosetting compositions including a binder which comprises a carboxyl group containing amorphous isophthalic acid containing polyester, a carboxyl group containing semi-crystalline polyester, at least 10 parts by weight, based on the total weight of the binder, of a specific glycidyl group containing acrylic copolymer and a curing agent having functional groups reactive with the polyesters' carboxyl groups. The powdered thermosetting compositions are useful for the preparation of powdered paints and varnishes which give low gloss coatings having an outstanding flow, a remarkable weatherability and excellent mechanical properties.

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