Oxazolidinium compounds and use as hydrate inhibitors
US7662970B2 · kind B2 · utility
7Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2027 |
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.