Stabilisation of polyphenylene ethers with macrocyclic polyalkylpiperidine compounds
US5004759A · kind A · utility
4Cited by
4References
6Claims
0Family size
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Key dates
| Filing date | Jun 28, 1988 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Jun 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3467
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Macrocyclic polyaminotriazines containing tetramethylpiperidine side groups are suitable for use as stabilisers, in particular against degradation by UV light, for polyphenylene ethers. They have the advantage that they do not impair, or impair only to an insignificant degree, the dimensional stability under heat of these polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.