Process for the preparation of vinyl aromatic-modified polyphenylene ethers
US4057599A · kind A · utility
2Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Oct 18, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A complex of polyphenylene ether resin and methylene chloride obtained by polymerizing a phenol in methylene chloride and then cooling the mixture to cause the complex to precipitate, is mixed with a vinyl aromatic compound, e.g., styrene monomer, heated to decompose the complex and remove methylene chloride from the blend, and thereafter the vinyl aromatic compound is polymerized. The products are useful as molding resins and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.