Candle wax stabilized by a combination of UV absorber plus a selected hindered amine
US6221115A · kind A · utility
8Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L91/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Candle wax containing a combination of a UV absorber, preferably a benzotriazole, in combination with a hindered amine which is substituted on the N-atom by an alkoxy, a cycloalkoxy or an hydroxy-substituted alkoxy moiety is surprising better stabilized than candle wax which contains a combination of a UV absorber and a conventional hindered amine where the N-atom is substituted by hydrogen or alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.