Phenolic benzothiazole derivatives and their use as corrosion inhibitors
US5069805A · kind A · utility
4Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Sep 14, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Sep 14, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula I ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning given in claim 1 are formed by thermal rearrangement of the isomers of formula V ##STR2## especially in the presence of basic catalysts. The compounds are corrosion inhibitors for organic materials, in particular coating materials and lubricants. In these substrates they also act as antioxidants and light-stabilizers and are very stable to heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.