Polyurea compositions from polyaspartic esters and secondary heterocyclic amines derived aspartic esters
US12152161B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/73
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polyurea coating composition comprising (A) a polyisocyanate; (B) a polyaspartic ester; and (C) an aspartic ester. The polyaspartic ester (B) is represented by the structure below:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.