Low temperature, polyphenylmethane-based dielectric compositions
US5192463A · kind A · utility
7Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2/861
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel dielectric compositions, well adapted for low temperature applications, include admixture of benzyltoluene, benzylbenzene and the higher homologs thereof, and optionally contain triphenylmethane, ditolylphenylmethane, tolyldiphenylmethane and the higher homologs thereof; the subject novel compositions are prepared by chlorinating a mixture of toluene and benzene and then treating the product of reaction with an inorganic halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.