Michael addition curing chemistries for sulfur-containing polymer compositions employing bis(sulfonyl)alkanols
US9394405B2 · kind B2 · utility
0Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D181/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions useful in aerospace sealant applications comprise sulfur-containing polymers such as polythioethers and polysulfides and are cured using Michael addition reactions. Compositions employing Michael addition curing chemistries include sulfur-containing adducts comprising terminal Michael acceptor groups. In particular, the sulfur-containing adducts include terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.