Aromatic diamine polyurethane curatives with improved stability
US7781518B2 · kind B2 · utility
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15References
9Claims
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Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jun 8, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3435
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.