US 5,965,115 AGranted

Personal care compositions

AssigneeThe Procter & Gamble Company

InventorsRaymond Edward Bolich, Jr., Kenneth Wayne Rigney

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Abstract

Disclosed are personal care compositions which are suitable for application to the hair, skin, or nails. These compositions comprise a polyorganosiloxane emulsion comprising a surfactant and a polyorganosiloxane having an average particle size of less than about 150 nanometers; from about 0.01% to about 10% of a silicone-linear polyoxyalkylene block copolymer surfactant; and a carrier comprising (i) at least about 0.5%, by weight of the composition, of a first solvent selected from the group consisting of water, water soluble organic solvents, organic solvents which are strongly to moderately strong in hydrogen-bonding parameter, and mixtures thereof, wherein the solvent is other than a C.sub.1 -C.sub.3 monohydric alcohol, a C.sub.1 -C.sub.3 ketone, and a C.sub.1 -C.sub.3 ether, and (ii) at least about 40%, by weight of the composition, of a second solvent selected from the group consisting of C.sub.1 -C.sub.3 monohydric alcohols, C.sub.1 -C.sub.3 ketones, C.sub.1 -C.sub.3 ethers, and mixtures thereof. The silicone-polyoxyalkylene copolymer surfactant provides for improved stability of the polyorganosiloxane emulsion, especially when lower alcohols such as C.sub.1 -C.sub.3 monohydric alcohols are incorporated into the compositions.

Claims26

Dependent claims

A personal care composition suitable for application to the hair, skin or nails comprising:

a) a polyorganosiloxane emulsion comprising:
(i) a polyorganosiloxane dispersed as particles in the emulsion, the polyorganosiloxane having an average particle size of less than about 150 nanometers, and
(ii) a surfactant system for dispersing the organopolysiloxane in the emulsion;
b) from about 0.01% to about 10% of a silicone--linear polyoxyalkylene block copolymer surfactant having the formula
M'D.sub.b D'.sub.c M'
wherein
M' is a monofunctional unit R.sub.2 R'SiO.sub.1/2 ;
D is a difunctional unit R.sub.2 SiO.sub.2/2 ;
D' is a difunctional unit RR'SiO.sub.2/2 ;
R is independently H, C .sub.1 -C.sub.6 alkyl, or aryl;
R' is independently, an oxyalkylene containing moiety, H, or CH.sub.3 ;
wherein when R' is an oxyalkylene containing moiety, it has the formula:
--R"(OC.sub.n CH.sub.2n).sub.y --R'"
wherein
R" is a divalent radical for connecting the oxyalkylene portion of moiety R' to the siloxane backbone;
R'" is a terminating radical for the oxyalkylene portion of the moiety R';
n is an integer of from 2 to 4;
and
y is an integer of 1 or greater, wherein the total of y from all of the oxyalkylene moieties in the copolymer surfactant is greater than 10;
b is an integer of from about 10 to about 1000;
and
c is an integer of from 0 to about 100, provided that when c is 0, at least one
M' contains an oxyalkylene moiety;
and
c) a carrier comprising (i) at least about 0.5%, by weight of the composition, of a first solvent selected from the group consisting of water;
water soluble organic solvents;
organic solvents which are strongly to moderately strong in hydrogen-bonding parameter;
and mixtures thereof;
wherein said first solvent is other than a C.sub.1 -C.sub.3 monohydric alcohol, C.sub.1 -C.sub.3 ketone or C.sub.1 -C.sub.3 ether, and (ii) at least about 40%, by weight of the composition, of a second solvent selected from the group consisting of C.sub.1 -C.sub.3 monohydric alcohols, C.sub.1 -C.sub.3 ketones, C.sub.1 -C.sub.3 ethers, and mixtures thereof.

26 more elements

A personal care composition suitable for application to the hair, skin or nails formed by combining components comprising:

a) a polyorganosiloxne emulsion comprising:
(i) a polyorganosiloxane dispersed as particles in the emulsion, the polyorganosiloxane having an average particle size of less than about 150 nanometers, and
(ii) a surfactant system for dispersing the organopolysiloxane in the emulsion;
b) from about 0.01% to about 10% of a silicone--linear polyoxyalkylene block copolymer surfactant having the formula
M'D.sub.b D'.sub.c M'
wherein
M' is a monofunctional unit R.sub.2 R'SiO.sub.1/2 ;
D is a difunctional unit R.sub.2 SiO.sub.2/2 ;
D' is a difunctional unit RR'SiO.sub.2/2 ;
R is independently H, C.sub.1 -C.sub.6 alkyl, or aryl;
R' is independently, an oxyalkylene containing moiety, H, or CH.sub.3 ;
wherein when R' is an oxyalkylene containing moiety, it has the formula:
--R"(OC.sub.n CH.sub.2n).sub.y --R'"
wherein
R" is a divalent radical for connecting the oxyalkylene portion of moiety R' to the siloxane backbone;
R'" is a terminating radical for the oxyalkylene portion of the moiety R';
n is an integer of from 2 to 4;
and
y is an integer of 1 or greater, wherein the total of y from all of the oxyalkylene moieties in the copolymer surfactant is greater than 10;
b is an integer of from about 10 to about 1000;
and
c is an integer of from 0 to about 100, provided that when c is 0, at least one
M' contains an oxyalkylene moiety;
and
c) a carrier comprising (i) at least about 0.5%, by weight of the composition, of a first solvent selected from the group consisting of water;
water soluble organic solvents;
organic solvents which are strongly to moderately strong in hydrogen-bonding parameter;
and mixtures thereof;
wherein said first solvent is other than a C.sub.1 -C.sub.3 monohydric alcohol, C.sub.1 -C.sub.3 ketone or C.sub.1 -C.sub.3 ether, and (ii) at least about 40%, by weight of the composition, of a second solvent selected from the group consisting of C.sub.1 -C.sub.3 monohydric alcohols, C.sub.1 -C.sub.3 ketones, C.sub.1 -C.sub.3 ethers, and mixtures thereof.

26 more elements

An emulsion composition suitable for application to the hair, skin or nails comprising:

a) a polyorganosiloxane emulsion comprising:
(i) a polyorganosiloxane dispersed as particles in the emulsion, the polyorganosiloxane having an average particle size of less than about 150 nanometers, and
(ii) a surfactant system for dispersing the organopolysiloxane in the emulsion;
b) from about 0.01% to about 10% of a silicone--linear polyoxyalkylene block copolymer surfactant having the formula:
M'D.sub.b D'.sub.c M'
wherein
M' is a monofunctional unit R.sub.2 R'SiO.sub.1/2 ;
D is a difunctional unit R.sub.2 SiO.sub.2/2 ;
D' is a difunctional unit RR'SiO.sub.2/2 ;
R is independently H, C.sub.1 -C.sub.6 alkyl, or aryl;
R' is independently, an oxyalkylene containing moiety, H, or CH.sub.3 ;
wherein when R' is an oxyalkylene containing moiety, it has the formula:
--R"(OC.sub.n CH.sub.2n).sub.y --R'"
wherein
R" is a divalent radical for connecting the oxyalkylene portion of moiety R' to the siloxane backbone;
R'" is a terminating radical for the oxyalkylene portion of the moiety R';
n is an integer of from 2 to 4;
and
y is an integer of 1 or greater, wherein the total of y from all of the oxyalkylene moieties in the copolymer surfactant is greater than 10;
b is an integer of from about 10 to about 1000;
and
c is an integer of from 0 to about 100, provided that when c is 0, at least one
M' contains an oxyalkylene moiety;
and
c) a carrier comprising (i) at least about 0.5%, by weight of the composition, of a first solvent selected from the group consisting of water;
water soluble organic solvents;
organic solvents which are strongly to moderately strong in hydrogen-bonding parameter;
and mixtures thereof;
wherein said first solvent is other than a C.sub.1 -C.sub.3 monohydric alcohol, C.sub.1 -C.sub.3 ketone or C.sub.1 -C.sub.3 ether, and (ii) at least about 40%, by weight of the composition, of a second solvent selected from the group consisting of C.sub.1 -C.sub.3 monohydric alcohols, C.sub.1 -C.sub.3 ketones, C.sub.1 -C.sub.3 ethers, and mixtures thereof.

26 more elements

Dependencies are inferred from the claim text.