Process for the manufacture of compositions which can be used as emulsifying and dispersing surfactants the compositions obtained and their uses
US6476081B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2000 |
| Grant date | Nov 5, 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
In order to manufacture a composition mainly containing compounds with ester and amide functions, in particular in the form of ester-amides, as well as compounds with amine functions, such as ester-amines, the salts of amines, monoglycerides and diglycerides, formed from monomeric, dimeric, trimeric and/or tetrameric fatty acids contained in a polymerized polyunsaturated oil, a process is implemented which comprises the following stages:a) use (or preparation) of a polymerized oil by polymerization of a polyunsaturated vegetable or animal oil;b) treatment of said polymerized oil by entrainment with water vapor; andc) reaction of the polymerized oil thus treated with an excess of at least one aminoalcohol, in the presence or not of a catalyst.This composition can be used as an emulsifying and dispersing surfactant, in particular as an additive for dispersing hydrates in oil effluents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.