Stabilization of a polymer by a stable free radical
US5919871A · kind A · utility
50Cited by
7References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Feb 6, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F293/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the stabilization of a polymer by a stable free radical and in particular to the use of a stable free radical for inhibiting the degradation of a polymer by a mechanism which does not involve oxygen. This use can be carried out when the polymer is in the presence or in the absence of oxygen. The degradation which can be inhibited can be a depolymerization or a crosslinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.