Polycarbamide resins for metal coating applications
US11041043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2017 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Apr 29, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2241
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polycarbamide coating compositions and secondary diamine curing agents used to produce the coating compositions are disclosed. Curing agent compositions comprising: (a) the reaction product of bis(4-aminocyclohexyl) methane and ethyl ester of 2-butendioc acid; and (b) the reaction product of bis(4-amino-3-methylcyclohexyl)methane and ethyl ester of 2-butendioic acid; and (c) at least one polyol are also disclosed. One aspect of the disclosure relates to a non-aqueous coating composition comprising the disclosed amine curing agents with a polyisocyanate resin. The coating compositions are suitable for use as direct to metal coatings or top coats. Methods of producing the curing agents and the coating compositions are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.