Phenolic benzothiazole derivatives and their use as corrosion inhibitors
US5097039A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1989 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Aug 14, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D25/188
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.