Coating compositions and methods with polyfunctional carbamate salt
US12421348B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Sep 9, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | May 10, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/90
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A latent base catalyst and compositions and methods involving latent base-catalyzed Michael addition reaction are described herein. The described latent base catalyst is a substituted carbamate salt. The compositions described herein are derived from a Michael addition reaction and provide coatings, including primer coatings and direct-to-metal coatings, which have optimal potlife and cure response, and also demonstrate optimal adhesion, corrosion resistance, and weatherability when applied to a substrate and cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.