Polymer composition comprising crosslinked silicones with exchangeable crosslinking points, preparation method and uses
US10889715B2 · kind B2 · utility
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3References
24Claims
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Key dates
| Filing date | Apr 18, 2017 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | May 10, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a silicone composition comprising (a) crosslinked polymers comprising consecutive —Si—O— units containing exchangeable pendant bonds and exchangeable crosslinking points, that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions and/or by imine-primary amine exchange reactions, obtained by crosslinking linear or branched polymers comprising consecutive —Si—O— units and (b) monofunctional free aldehydes and/or monofunctional free imines and/or monofunctional free primary amines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.