Method for prevention of loss of transparency of polyarylene ester blends
US4379892A · kind A · utility
13Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Apr 12, 1983 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for prevention of loss of transparency of shaped articles prepared from a polyarylene ester blend comprising a polyarylene ester and other thermoplastic resin when treated with steam or boiling water, which comprises reducing the sodium content of the blend to less than 70 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.