Process for producing blends of tackifying resins with low molecular weight polyphenylene ethers
US5922815A · kind A · utility
11Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides an improved process for producing blends of tackifying resins and low molecular weight polyphenylene ether resins. This invention involves combining the resin solutions or redissolving one of the resins once isolated, in the other resin solution and isolation of the resin blend by devolatilization, precipitation, evaporation, spray drying, and/or stripping of the organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.