Process for producing polyarylethers by forming an alkylated intermediate
US4801657A · kind A · utility
1Cited by
6References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Apr 2, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/4093
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Two step process for preparing high molecular weight, high melting polyarylethers by polycondensing an alkyl-substituted dihydric phenol and an aromatic dihalide, and thereafter dealkylating the polycondensation product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.