Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith
US6391949B1 · kind B1 · utility
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36Claims
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Key dates
| Filing date | Feb 22, 2001 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Feb 22, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/98
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.