Thermosetting two-component coating compositions
US6642342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31591
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to thermosetting two-component coating compositions containingA) at least one NCO prepolymer,B) at least one amine-free chain extender,C) at least one catalyst selected from metal 1,3-dicarbonylates and metal-oxo 1,3-dicarbonylates, whereini) the metal 1,3-dicarbonylate contains as a neutral complex a metal cation with the electron configuration d0 of sub-group 3 or a lanthanide andii) the metal-oxo 1,3-dicarbonylate contains a metal-oxo cation of sub-group 6 with the electron configuration d0.The present invention also relates to a process for preparing these coating compositions and to coated substrates prepared therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.