Halogenated styrene compounds and very low-loss polymers made therefrom
US6891071B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 22, 2003 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Sep 22, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D285/125
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to polymerizable vinyl compounds having halogenated aromatic groups and to a method of synthesizing such compounds. In particular, the invention is directed to polymerizable aromatic vinyl compounds wherein, except for the vinylic hydrogen atoms, aromatic C—H bonds are replaced by C—X bonds, where X is a halogen or other selected substituent having a de minimus number, if any, of C—H bonds; for example, without limitation, highly fluorinated fluoroalkanes. In addition, the compounds of the invention have a de minimus number, if any, of N—H and O—H bonds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.