Cosmetic method using a composition containing siloxane resins and a non-volatile oil
AssigneeL'oreal
InventorFlorence Dop
Life of this patent
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Abstract
The invention relates to a cosmetic method for making-up and/or caring for keratin materials, in particular the skin, whereby a cosmetic composition is applied to the keratin materials, said cosmetic composition taking the form of an emulsion and comprising siloxane resins and a non-volatile hydrocarbon oil. In particular, the invention relates to compositions used to care for or make-up the aforementioned keratin materials.
Claims26
A cosmetic method for making up and/or caring for keratin materials, comprising applying, to said keratin materials a composition, in the form of an emulsion, wherein the composition comprises, in a physiologically acceptable medium:
- a) a siloxane resin comprising at least 80 mol % of units:
- (R′3SiO1/2)a (hereinafter “M” units) and
- (ii) (SiO4/2)b (hereinafter “Q” units)
- in which
- R′ independently represents an alkyl group containing from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group,
- with the condition that at least 95 mol % of the R′ groups are alkyl groups,
- a and b are values strictly greater than 0,
- and the ratio a/b is between 0.5 and 1.5;
- b) a propyl silsesquioxane resin comprising at least 80 mol % of (R″SiO3/2) units (hereinafter “T” units) in which R″ independently represents an alkyl group comprising from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group, with the condition that at least 80 mol % of the R″ groups are propyl groups;
- the weight ratio between the resins a) and b) being between 1/99 and 99/1, in particular between 85/15 and 15/85,
- the resins a) and b) not being bonded to one another via covalent bonds,
- and the number of M units in the final mixture being strictly less than the number of (T+Q) units;
- and
- c) at least one non-volatile C6-C22 hydrocarbon-based oil.
A cosmetic method for making up and/or caring for keratin materials, comprising applying, to said keratin materials, of a composition comprising, in a physiologically acceptable medium:
- a) a siloxane resin comprising at least 80 mol % of units:
- (R′3SiO1/2)a (hereinafter “M” units) and
- (ii) (SiO4/2)b (hereinafter “Q” units)
- in which
- R′ independently represents an alkyl group containing from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group,
- with the condition that at least 95 mol % of the R′ groups are alkyl groups,
- a and b are values strictly greater than 0,
- and the ratio a/b is between 0.5 and 1.5;
- b) a film-forming propyl silsesquioxane resin comprising at least 80 mol % of (R″SiO3/2) units (hereinafter “T” units) in which R″ independently represents an alkyl group containing comprising from 1 to 8 carbon atoms, an aryl group, a carbinol group or an amino group, with the condition that at least 40 mol % of the R″ groups are propyl groups,
- the weight ratio between the resins a) and b) being between 1/99 and 99/1, in particular between 85/15 and 15/85,
- the resins a) and b) not being bonded to one another via covalent bonds,
- and the number of M units in the final mixture being strictly less than the number of (T+Q) units;
- and
- c) at least one non-volatile C6-C22 hydrocarbon-based oil.
Dependencies are inferred from the claim text.