Novel polyphenylene ether and process for preparing the same
US4011200A · kind A · utility
37Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Mar 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyphenylene ether random copolymer excelling in heat resistance and resistance to solvents, said copolymer being composed of 50-98 mol% of a structural unit of the formula ##STR1## derived from 2,6-dimethyl phenol and 50-2 mol% of a structural unit of the formula ##STR2## derived from 2,3,6-trimethylphenol, each of said structural units being randomly arranged in the polymeric structure, said copolymer having an intrinsic viscosity, as measured in chloroform at 25.degree. C., of at least 0.3 dl/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.