Patent · US Expired

Pulverent binders for powder coating compositions containing oligo- and polyurethanes having (meth)acryloyl groups

US6555597B1 · kind B1 · utility

9Cited by

3References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Jan Weikard · Neunburg vorm Wald, DE
Christian Zwiener · Cologne, DE
Wolfgang Fischer · Meerbusch, DE
Peter Thometzek · Bensberg, DE

Key dates

Filing date	Aug 16, 2000
Grant date	Apr 29, 2003
Priority date	—
Expiry date	Aug 16, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2150/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to pulverent binders for powder coating compositions which contain oligo- and polyurethanes having (meth)acryloyl groups, are curable by means of high energy radiation and have an organic solvent content of less than 1 wt. %. The present invention also relates to a process for preparing these binders in the absence of an organic solvent and to their use in powder coating compositions for coating wood, metal, plastic, mineral and/or preprimed substrates.

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