Centre National De La Recherche Scientifique

Ceca S.a.

Bioamber S.a.s.

Universite De Reims Champagne Ardenne (u.r.c.a.)

Charles Portella

Boris Estrine

Sinisa Marinkovic

Cedric Ernenwein

Benjamin Renault

Fabien Massicot

Sandrine Lavaire

Richard Plantier-Royon

An emulsifying composition, characterised in that it contains by weight, excluding impurities, (i) 1 to 98% by weight of a mixture of alkyl glycosides R1O(G1)g(G2)g(G3)g(G4)g(G5)g, (ii) 1 to 90% by weight of a mixture of alcohol esters R2OZ, (iii) 1 to 90% of an alcohol R3OH, and (iv) 4 to 90% of a mixture of alkyl glycoside esters R4O(X1)x(Z)z(X2)x(Z)z(X3)x(Z)z(X4)x(Z)z(X5)x(Z)z, is disclosed In accordance with the composition, R1 is a hydrocarbon radical, linear or branched, saturated or unsaturated, having 10 to 22 carbon atoms. G1, G2, G3, G4, G5 are identical or different residues of -oses selected from glucose, galactose, mannose, fructose, ribose, xylose and arabinose, g, g, g, gand gbeing equal to 0 or 1, the sum of g, g, g, gand gbeing at least equal to 1. The composition has emulsifying capacity in the presence of electrolytes or in the case of paraffin-based emulsions.

Emulsifying compositions based on alkyl polyglycosides and esters

The invention relates to 1-C-perfluoroalkyl glucosides consisting essentially of a monosaccharide having an anomeric carbon directly linked to a perfluoroalkyl radical and a hydroxyl group. These glycosides are prepared by a process comprising: (a) reacting an aldonolactone with a hydroxyl protecting group; (b) reacting the product of step (a) with a compound of formula R.sub.F -M in which R.sub.F represents a linear or branched perfluoroalkyl radical containing from 2 to 12 carbon atoms, and M represents Li or MgX, X being a halogen; and (c) liberating the hydroxyl group. The 1-C-perfluoroalkyl glycosides may be used as surfactants and as flame retardants.

1-C-perflouroalkyl glycosides, preparation process and uses thereof

Growing community of inventors

Cormontreuil, France

Charles Portella