Alkylated 5,6,7,8-tetrahydronaphthalenols as antioxidants
US4478605A · kind A · utility
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6References
13Claims
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Inventor
Key dates
| Filing date | Apr 25, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Apr 25, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Alkylated 5,6,7,8-tetrahydronapthalenols are effective antioxidants for fuel oils. Di- and tri-alkylated tetrahydronaphthalenols are especially effective, with the di- and tri-isopropylated materials being preferred, at a concentration as low as about 5 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.