Production of poly(p-phenylene) from 4,4'-dihalobiphenyl and lithium using ultrasonic waves
US4576688A · kind A · utility
7Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1982 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Nov 4, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G61/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides a process for the production of poly(p-phenylene) which involves subjecting a liquid reaction medium containing 4,4'-dihalobiphenyl and alkali metal, e.g. lithium coupling reactants to activation with ultrasonic energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.