Oxazolidinium compounds and use as hydrate inhibitors
US8134011B2 · kind B2 · utility
9Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Oxazolidinium compounds are formed by the reaction of a halohydrin or an epoxide with a secondary amine and an aldehyde or a ketone. The oxazolidinium compounds are formed directly and do not require the reaction of a pre-formed oxazolidine with an alkylating agent. The compounds are useful as gas hydrate inhibitors in oil and gas production and transportation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.