Corrosion inhibiting compositions including bis-imidazoline compounds derived from enriched linear tetramines
US10329672B2 · kind B2 · utility
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18References
18Claims
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Key dates
| Filing date | Dec 12, 2014 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Dec 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides corrosion inhibiting compositions that incorporate at least one bis-imidazoline compound. In the practice of the present invention, a tetramine admixture enriched with respect to linear tetramine is used to prepare the bis-imidazoline compound. “Enriched” means at least 70 weight percent and up to 100% of the tetramine species included in the admixture includes a linear tetramine such as L-TETA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.