Methods of making emulsifying and dispersing surfactants and their use
US6492430B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/915
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a composition comprising a mixture with ester and amine function in the form of ester-amines, amines, salts of amines, monoglycerides and diglycerides all derived from monomeric, dimeric, trimeric, and/or tetrameric fatty acids contained in polymerized polyunsaturated oil comprising: (a) polymerizing a polyunsaturated vegetable or animal oil to form a polymerized oil, (b) treating the polymerized oil with water vapor, and (c) reacting the polymerized oil with an excess of at least one compound containing at least one hydroxyl function and at least one tertiary amine function, optionally in the presence of a catalyst. Said methods further comprise adding the compositions to an oil effluent as dispersing agents for hydrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.