Cyclic carbonate monomers and polymers prepared therefrom
US9550748B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jul 19, 2012 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Sep 14, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G71/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A cyclic carbonate monomer including the reaction product of (a) a divinylarene dioxide, and (b) carbon dioxide; a process for making the cyclic carbonate monomer; and a polymer such as a poly(hydroxyurethane) composition made therefrom. The poly(hydroxyurethane) composition made from the above cyclic carbonate monomer forms a reactive intermediate that can be used for making, for example, a poly(hydroxyurethane) foam product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.