Surfactant for water-in-oil emulsion
AssigneeGattefosse SAS
InventorsJean-David Rodier, Maxime Nollet
Life of this patent
Estimating the term…
Abstract
The present invention relates to a water-in-oil surfactant consisting of a mixture of compounds of formula (I): wherein the compound of formula (I) has an average degree of polymerisation n of between 4 and 6, R1, R2 and R3 being, independently of one another, a hydrogen atom or a group R4 derived from at least one carboxylic acid, the carboxylic acid being 12-hydroxystearic acid or a mixture of 12-hydroxystearic acid and ricinoleic acid. The present invention also relates to a surfactant composition and to a cosmetic composition comprising this surfactant.
Claims20
A water-in-oil surfactant consisting of a mixture of compounds of formula (I):
- wherein the compounds of formula (I) have an average degree of polymerisation n of between 4 and 6,
- R1, R2 and R3 being, independently of one another, a hydrogen atom,
- 12-hydroxystearic acid, a mixture of 12-hydroxystearic acid and ricinoleic acid, or an R4 group,
- R4 being a group C(═O)—(R5)-CH[(CH2)5—CH3]—O—{C(═O)—(R5)-CH[(CH2)5—CH3]—O}pC(═O)—(R5)-CH[(CH2)5—CH3]—OH where p=0 to 5,
- R5 being a mixture of the groups (CH2)10 and (CH2)7—(CH═CH)—CH2, and wherein at least one of the R1, R2 and R3 groups is an R4 group.
A surfactant composition comprising a water-in-oil surfactant consisting of a mixture of compounds of formula (I):
- wherein the compound of formula (I) has an average degree of polymerisation n of between 4 and 6,
- R1, R2 and R3 being, independently of one another, a hydrogen atom, 12-hydroxystearic acid, a mixture of 12-hydroxystearic acid and ricinoleic acid, or an R4 group,
- R4 being a group C(═O)—(R5)-CH[(CH2)5—CH3]—O—{C(═O)—(R5)-CH[(CH2)5—CH3]—O}pC(═O)—(R5)-CH[(CH2)5—CH3]—OH where p=0 to 5,
- R5 being a mixture of the groups (CH2)10 and (CH2)7—(CH═CH)—CH2,
- and wherein at least one of the R1, R2 and R3 groups is an R4 group.
A cosmetic composition comprising a water-in-oil surfactant consisting of a mixture of compounds of formula (I):
- wherein the compounds of formula (I) have an average degree of polymerisation n of between 4 and 6,
- R1, R2 and R3 being, independently of one another, a hydrogen atom, 12-hydroxystearic acid, a mixture of 12-hydroxystearic acid and ricinoleic acid, or an R4 group,
- R4 being a group C(═O)—(R5)-CH[(CH2)5—CH3]—O—{C(═O)—(R5)-CH[(CH2)5—CH3]—O}pC(═O)—(R5)-CH[(CH2)5—CH3]—OH where p=0 to 5,
- R5 being a mixture of the groups (CH2)10 and (CH2)7—(CH═CH)—CH2,
- and wherein at least one of the R1, R2 and R3 groups is an R4 group.
Dependencies are inferred from the claim text.