Rapid hydrosilylation cure composition
US11492449B1 · kind B1 · utility
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Key dates
| Filing date | Dec 2, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Dec 2, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition contains a blend of linear and resinous alkenyl functionalized polyorganosiloxanes, a blend of linear and resinous silyl hydride functionalized polyorganosiloxanes, and a hydrosilylation catalyst where the linear silyl hydride functionalized polyorganosiloxanes has a ratio of D/DH that is greater than 2.0 and less than 14, the molar and the ratio of silyl hydride hydrogens to the sum of terminal alkenyl functionality on the alkenyl functionalized polyorganosiloxane is 1.2-2.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.