Surfactant performance through carbon chain extension and lower branching
AssigneeExxonMobil Research and Engineering Company
InventorsRoss Mabon, Shane Deighton, Arben Jusufi, Kanmi Mao
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Abstract
Provided herein are novel extended branched alcohols having a lower branching number and improved biodegradability when compared to other branched alcohols. Also provided are novel extended branched ethoxylates having surfactant properties which can be more efficient in reducing surface tension when compared to the ethoxylated form of other branched alcohols. Further provided are novel syntheses of making extended branched alcohols and extended branched ethoxylates.
Claims14
A compound having a structural formula selected from the group consisting of:
- wherein n is an integer from 1 to 12;
- and
- wherein n is an integer from 1 to 12.
A mixture comprising a plurality of compounds, having a structural formula selected from the group consisting of:
- wherein n is an integer from 1 to 12;
- and
- wherein n is an integer from 1 to 12.
A method of making a mixture of extended branched alcohols comprising the steps of:
- providing a branched alcohol;
- reacting the branched alcohol with a half-ester to provide an extended branched ester;
- and
- reducing the extended branched ester to provide an extended branched alcohol,
- wherein the mixture of extended branched alcohols comprises a plurality of compounds having a formula selected from the group consisting of:
- wherein the amount of the plurality of compounds is at least 70 wt. %;
- and
- wherein the amount of the plurality of compounds is at least 70 wt. %.
A method of making a mixture of extended branched alcohols comprising the steps of
- forming an aldehyde from a branched alcohol;
- converting the aldehyde to form an extended branched ester;
- and
- reducing the extended branched ester to produce an extended branched alcohol,
- wherein the mixture of extended branched alcohols comprises a plurality of compounds having a formula selected from the group consisting of:
- wherein the amount of the plurality of compounds is at least 70 wt. %;
- and
- wherein the amount of the plurality of compounds is at least 70 wt. %.
Dependencies are inferred from the claim text.