Patent Number: 6,251,937

Title: 5,6-0-alkylidene glucono-1(4)-lactones and derivatives, processes for their preparation and uses thereof

Abstract: The invention relates to cleavable surfactants of formula: ##STR1## in which R' and R, which may be identical or different, represent a hydrogen atom or a linear or branched, saturated or unsaturated alkyl radical, the sum of the carbon atoms of R' and R being between 5 and 42. The invention also relates to the corresponding derivatives obtained by alkaline hydrolysis or amidation. The invention furthermore relates to the preparation of these surfactants from glucono-1(5)-lactone and a compound of formula R--CO--R' in the presence of an acid catalyst, R and R' having the meaning given above. The surfactants are used in particular in emulsion polymerization and in the field of cosmetics.

Inventors: Petit; Serge (Cusy, FR), Fouquay; Stephane (Mont Saint-Aignan, FR)

Assignee: CECA S.A.

International Classification: C07D 407/04 (20060101); C07D 317/00 (20060101); C07D 407/00 (20060101); C07D 317/30 (20060101); A61K 031/335 (); C07D 305/00 ()

Expiration Date: 06/26/2018