Polyurea compositions and methods of use
US8802790B2 · kind B2 · utility
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5References
21Claims
0Family size
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Key dates
| Filing date | Feb 20, 2014 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2190/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.