Process for preparing oxidatively-stable polymers by reaction with antioxidant in the presence of free radical
US4213892A · kind A · utility
46Cited by
6References
11Claims
0Family size
Inventor
Key dates
| Filing date | Mar 5, 1975 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Mar 5, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/123
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers are rendered more oxidatively stable by reaction with an antioxidant or stabilizer, generally a vinyl-group- or thiol group-containing antioxidant, in the presence of a free radical which may be produced by a redox system or ultra-violet light. The resulting polymers can be used as such or can be used as additives in other polymers to stabilize the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.