Coatings
US12344766B2 · kind B2 · utility
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10Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Dec 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the application of an intumescent coating system to a substrate comprising (I) applying to a substrate an intumescent coating composition comprising i. an epoxy-based binder; ii. a curing agent; iii. an expansion agent; iv. an acid generating compound; and v. at least 5 wt. % water; and allowing said composition to cure to form an intumescent coating layer; (II) applying to a cured or partially cured intumescent coating layer, a top coat composition comprising an acrylic-based binder, a polyurethane binder or a silicone-based binder and at least 10 wt. % water so as to form a top coat layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.