Patent · US Expired

Powder varnish dispersion

US6358568B1 · kind B1 · utility

2Cited by

1References

18Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Stephan Schwarte · Münster, DE
Joachim Woltering · Hachenburg, DE
Hubert Baumgart · Hachenburg, DE

Key dates

Filing date	May 8, 2000
Grant date	Mar 19, 2002
Priority date	—
Expiry date	May 8, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L61/32
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a transparent powder coating dispersion comprising a solid, pulverulent component A and an aqueous component B, component A being a powder coating material comprisinga) at least one epoxy-containing binder having a content of from 30 to 45%, preferably from 30 to 35%, by weight of glycidyl-containing monomers, with or without a content of vinylaromatic compounds, preferably styrene,b) tris(alkoxycarbonylamino)triazine and polycarboxylic acids, preferably straight-chain aliphatic dicarboxylic acids and/or carboxy-functional polyesters, as crosslinking agents,component B being an aqueous dispersion comprisinga) at least one nonionic thickener.

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