Totalenergies Onetech

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Elkem Silicones France Sas

Nyco

Elken Silicones France Sas

Delphine Crozet

Alice Limoges

Sébastien Marrot

Vincent Monteil

Jean Raynaud

Djibril Faye

Magali Bousquié

Yves Travert

Grégoire Hervé

Benjamin Swoboda

Henri Strub

Magali BousquiÉ

The invention relates to a method for preparing a composition of diesters comprising reacting an unsaturated compound of alcohol type or the ester thereof, with a saturated fatty acid, in the presence of an acid catalyst. The invention also relates to a composition of diesters that is obtainable by the method of the invention, and the use thereof in lubricating compositions or in cosmetic or pharmaceutical compositions.

Process for preparing diesters from unsaturated fatty alcohols and diesters thus obtained

The invention relates to a composition preparation method for preparing a composition of estolides, the method comprising reacting an unsaturated compound of a type such as an acid or ester, with a saturated fatty acid; in the presence of a catalyst of a type such as sulphonic acid, the said method including no vacuum distillation step thereby making it possible to separate the monoestolides from the polyestolides. The invention also relates to a composition of estolides that is obtainable by the method according to the invention and the use thereof in lubricating compositions.

Estolide composition and process for making estolides

The invention relates to an estolide ester composition with improved sensory properties for cosmetic or pharmaceutical topical applications.

Estolide composition for topical applications

The invention relates to a method for the preparation of estolide esters from a hydroxycarboxylic acid by a reaction of addition of a fatty acid to the hydroxyl function and by a reaction of esterification of the carboxylic acid function with an alcohol. The invention further relates to the use of estolide esters as a base oil in a lubricating composition or as an emollient in a cosmetic or pharmaceutical composition.

Method for producing estolide esters and composition of estolide esters

The invention relates to a crosslinkable composition X, comprising: at least one organopolysiloxane compound A comprising, per molecule, at least two C2-C6 alkenyl radicals bonded to silicon atoms; at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom; at least one catalyst C which is a complex corresponding to the following formula: [Fe(L1)2] in which: the symbol Fe represents iron at degree of oxidation II; the symbols L1, which may be identical or different, represent a ligand which is a &#x3b2;-dicarbonylato anion or the enolate anion of a &#x3b2;-dicarbonylated compound; optionally at least one adhesion promoter D; and optionally at least one charge E. The invention also relates to the use of the previously described catalyst C as silicone composition crosslinking catalyst, to a silicone composition crosslinking method, wherein it comprises heating the composition X to a temperature of between 70 and 200&#xb0; C., and to the resulting crosslinked silicone material Y.

Silicone composition crosslinking catalysts

The invention relates to a crosslinkable composition X, comprising: at least one organopolysiloxane compound A comprising, per molecule, at least two C2-C6 alkenyl radicals bonded to silicon atoms; at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom; at least one catalyst C which is a complex corresponding to the following formula: [Co (L1)2] in which: the symbol Co represents cobalt at degree of oxidation II; the symbols L1, which may be identical or different, represent a ligand which is a &#x3b2;-dicarbonylato anion or the enolate anion of a &#x3b2;-dicarbonylated compound; optionally at least one adhesion promoter D; and optionally at least one filler E. The invention also relates to the use of the previously described catalyst C as silicone composition crosslinking catalyst, to a silicone composition crosslinking method, characterized in that it consists in heating the composition X to a temperature of between 70 and 200&#xb0; C., and to the resulting crosslinked silicone material Y.

Growing community of inventors

Villeurbanne, France

Delphine Crozet