Crosslinkable mesogenic dianhydride monomers
US12145918B2 · kind B2 · utility
0Cited by
6References
3Claims
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Key dates
| Filing date | Apr 12, 2023 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jun 6, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/89
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Applicants disclose a family of rod-like dianhydrides that contain two phthalic anhydride moieties linked by a bridge that is comprised of at least one ethynyl and one paraphenylene group and processes of making and using such rod-like dianhydrides. Such rod-like dianhydrides can endow net-work structures with improved mechanical and thermal properties in the crosslinked-polymer products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.