Linear silicone resins in personal care applications
View Patent ↗The present invention relates to the use in personal care products of a series of novel silicone polymers (referred to as linear silicone resin) that by are made by the hydrosilylation reaction of a terminal vinyl silicone and a terminal silanic hydrogen polymer. The properties make the compounds very useful in a variety of personal care applications including personal care.
1. A cosmetic composition comprising at least one silicone conforming to the following structure;
wherein;
A is
B is:
x is an integer ranging from 0 to 5000;
y is an integer ranging from 0 to 5000;
z is integer ranging from 2 to 2000,
in which said composition is anhydrous or an emulsion.
2. The composition of claim 1 which is a water-in-oil emulsion or an oil-in-water emulsion.
3. The composition of claim 1 which is anhydrous.
4. The composition of claim 1 further comprising at least one oil.
5. The composition of claim 4 wherein the at least one oil is volatile.
6. The composition of claim 5 wherein the at least one volatile oil is a silicone, a hydrocarbon, or mixtures thereof.
7. The composition of claim 6 comprising about 0.1-95% by weight of the total composition of one or more volatile components.
8. The composition of claim 1 further comprising at least one additional film forming polymer.
9. The composition of claim 8 wherein the at least one additional film forming polymer is a non-silicone polymer.
10. The composition of claim 9 wherein the non-silicone polymer is a polymer comprised of polymerized ethylenically unsaturated monomers either alone or in combination with one or more organic moieties.
11. The composition of claim 1 further comprising a plasticizer in an amount sufficient to improve spreadability and application of the composition to the desired surface.
12. The composition of claim 11 wherein the plasticizer is present at about 0.01-60% by weight of the total composition.
13. The composition of claim 12 wherein the plasticizer is a glycerol, glycol, or citrate ester; or an ester of adipic or malic acid.
14. The composition of claim 1 further comprising one or more viscosity modifiers.
15. The composition of claim 14 wherein the viscosity modifying agent is present at 0.01-60% by weight of the total composition.
16. The composition of claim 15 wherein the viscosity modifying agent is selected from the group consisting of natural or synthetic montmorillonite minerals, associative thickeners, silicas, or silicate; or waxes.