Low pour point derivatives of dimer fatty acids
AssigneeOleon NV
InventorDirk Packet
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Abstract
The present invention relates to specific derivatives of dimer fatty acids, compositions comprising them and a method to reduce pour points.
Claims10
Derivatives of dimer fatty acids obtainable by the process comprising the following steps:
- i) dimerizing a fatty acid mixture feedstock, whose oleic acid content is more than 80 wt % based on weight of fatty acid mixture contained in the feedstock, by heating in the presence of a clay catalyst;
- ii) separating monomer fatty acids from the dimer fatty acids formed during step i);
- and
- iii) derivatizing dimer fatty acids to produce dimer fatty esters, amides, alcohols or alkanes;
- wherein the derivatization step is an esterification, an amidification, a reduction or a decarboxylation reaction of the carboxylic functions of dimer fatty acids, wherein the fatty acid mixture feedstock are fatty acids from high oleic sunflower oil.
A method to reduce the pour point of derivatives of dimer fatty acids by carrying out an esterification, an amidification, a reduction or a decarboxylation reaction of the carboxylic functions of dimer fatty acids obtained by the process comprising the following steps:
- i) dimerizing fatty acid mixture feedstock, whose oleic acid content is more than 80 wt % based on weight of fatty acid mixture contained in the feedstock, by heating in the presence of a clay catalyst;
- and
- ii) separating the monomer fatty acids from the dimer fatty acids formed during step i), wherein the fatty acid mixture feedstock are fatty acids from high oleic sunflower oil.
A method to reduce the pour point of a composition comprising adding derivatives of dimer fatty acids produced in the presence of a clay catalyst from dimer fatty acids from fatty acid mixture feedstock, whose oleic acid content is more than 80 wt % based on weight of fatty acid mixture contained in the feedstock, and wherein the fatty acid mixture feedstock are fatty acids from high oleic sunflower oil.
Dependencies are inferred from the claim text.