Fluorinated tris-epoxides based on triphenyl methane
US4717760A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Jul 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/3254
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Epoxides of the invention are those of the formula ##STR1## wherein J is H or F, the same in each occurrence; Q is a valence bond or --O--, the same in each occurrence; and Y is H or F, independently. When cured, these epoxides are superior in moisture resistance, flame retardance, and thermal stability to the corresponding non-fluorinated, prior art epoxides. The epoxides of the preceding formula may be made by first reacting an allylic halide of the formula CJ.sub.2 .dbd.CJ--CJ.sub.2 --X, wherein X is halogen, with a compound of the formula ##STR2## wherein Z is MO, hal.Mg or Ag; M is an alkali metal; and hal=Br or I; then if Y is to be F, converting the --CH group to a --CF group, and finally, oxidizing the CJ.sub.2 .dbd.CJ group to a ##STR3## group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.