Patent · US Expired

High-reactivity polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds containing uretdione groups

US7300997B2 · kind B2 · utility

10Cited by

1References

19Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Andreas Wenning · Nottuln, DE
Emmanouil Spyrou · Schermbeck, DE

Key dates

Filing date	Oct 14, 2004
Grant date	Nov 27, 2007
Priority date	—
Expiry date	Nov 12, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31605
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds having uretdione groups, which cure at low baking temperatures, a process for preparing such compositions, and their use for producing plastics, especially polyurethane powder coatings, which crosslink at low baking temperatures to give high-gloss or matt, light-stable and weather-stable coating films.

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