Phosphine-catalyzed, michael addition-curable sulfur-containing polymer compositions
US9328275B2 · kind B2 · utility
2Cited by
17References
25Claims
0Family size
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Key dates
| Filing date | Mar 7, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Mar 27, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2481/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.