Coating system for RMA crosslinkable coating compositions
US12024642B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 25, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a coating system comprising a binder composition comprising a polymer having a Mn of 6,000 to 60,000 g/mol, a Mw of 20,000 to 300,000 g/mol, a Tg of 30 to 180° C. and an acid value of at most 3.0 mg KOH/g, and a RMA crosslinkable coating composition comprising a component A with at least two acidic protons C—H in activated methylene or methine groups, a component B with at least two activated unsaturated C═C groups and a base crosslinking catalyst C; and its use for improving adhesion of the RMA crosslinkable coating composition, in particular to wood substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.