Emulsion compositions and applications therefor
View Patent ↗The present invention relates to oil-in-water emulsion-forming compositions having reduced whitening effect when applied on wet substrates. The oil-in-water emulsion compositions are suitable for use in personal care products, textile treatments, polishing products, gloss enhancements and water resistance treatments.
1. An oil-in-water emulsion-forming composition comprising:
(i) polysiloxane possessing at least one hydrophilic moiety having the general formula (II)
[M a D b T c Q d ] e (II)
wherein
M=R 4 R 5 R 6 SiO 1/2 ,
D=R 7 R 8 SiO 2/2 ,
T=R 9 SiO 3/2 ,
Q=SiO 4/2 ,
with
a=1-10
b=0-1000
c=0-1
d=0-1
e=1-10
wherein
R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are each independently an organic group, which comprises at least one group R 10 , which is selected from:
R 11 =—Z-(A-E) y , wherein
Z=a bivalent or trivalent straight-chained, cyclic or branched, saturated or unsaturated C 2 to C 20 -hydrocarbon group, which can comprise one or more groups selected from —O—, —NH—,
and can be substituted by one or more OH groups,
A is a bivalent group which is selected from the group which comprises:
y=1 or 2
E is selected from the group which comprises:
E 2 =—O—C(O)—R 12 ,
wherein R 12 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 50 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —, —C(O)— and is substituted by one or more OH groups, wherein R 13 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 6 carbon atoms, and E 3 =
wherein E 2 is as defined above, and x =1-4,
E 4 =—NR 14 R 15 , wherein
R 14 and R 15 are the same or different and are selected from the group which comprises: hydrogen and straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 30 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —
wherein R 13 is as defined above, —C(O)—, and can be substituted by one or more OH— and/or H 2 N— groups,
R 16 =—Z-E 2 wherein E 2 is as defined above, and
R 17 =—Z-E 5 , wherein E 5 =—NH—C(O)—R 14 , wherein R 14 is a defined above,
R 10 in addition to at least one of R 11 , R 16 and R 17 may be R 18 =—Z-E 1 , wherein E 1 is —O—C(O)—R 19 ,
wherein R 19 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 50 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —, —C(O)—, wherein R 13 is as defined above, but has no hydroxyl substituent;
(ii) polymeric aqueous thickener; and,
(iii) oil,
the oil-in-water emulsion-forming composition forming a oil-in-water emulsion upon addition of an emulsion-forming amount water (iv) thereto, the average particle size of oil (iii) in the emulsion being at least 5 microns, the emulsion when applied to a water-wet substrate exhibiting no significant whitening effect.
2. The oil-in-water emulsion-forming composition of claim 1 wherein the hydrophilic moiety of polysiloxane (i) is selected from the group consisting of polyether group, sugar group, polyhydroxylated hydrocarbon group, and ionic group.
3. The oil-in-water emulsion-forming composition of claim 1 wherein polymeric aqueous thickener (ii) is selected from the group consisting of crosslinked polyacrylate polymer, polyacrylamide, copolymer, anionic or cationic crosspolymer which can produce a yield point in water.
4. The oil-in-water emulsion-forming composition of claim 1 wherein polymeric aqueous thickener (ii) is selected from the group consisting of carbopol, ammonium acryloyldimethyltaurate/VP copolymer, ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymer, carboxyvinyl polymer, acrylate/C10-C30-alkylacrylate copolymer, polyacrylamide/C13-14 isoparaffin/Laureth 7, acrylamide/sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80, 2-acrylamido-2-methylpropanesulfonic acid polymer and copolymer, hydroxyethylcellulose, polysaccharide, gum, and mixtures thereof.
5. The oil-in-water emulsion-forming composition of Claim 1 wherein the average particle size of oil (iii) in the emulsion is at least 10 microns.
6. The oil-in-water emulsion-forming composition of claim 1 wherein oil (iii) is selected from the group consisting of triglyceride, silicone, hydrocarbon, hydrophobic polymer, fatty alcohol, natural wax and fat, fatty acid ester of monoalcohol, and mixtures thereof.
7. The oil-in-water emulsion-forming composition of claim 1 wherein the whitening effect of the oil-in-water emulsion composition formed therefrom when applied to a water-wet substrate is not greater than 20%.
8. A skin care product, hair care product, polishing product, gloss enhancement product or water resistance treatment product formulated with the oil-in-water emulsion-forming composition of claim 1 .
9. The oil-in-water emulsion-forming composition of claim 1 wherein the water-wet substrate is selected from the group consisting of skin, hair, textile, leather, wood, stone, tile, rubber, metal surface, glass, and plastic surface.
10. The oil-in-water emulsion composition obtained from the addition of an emulsion-forming amount of water (iv) to the oil-in-water emulsion-forming composition of claim 1 .
11. The oil-in-water emulsion composition of claim 10 wherein polysiloxane (i) is employed in the amount of from 0.05% to 10% by weight based on the total weight of the oil-in-water emulsion composition.
12. The oil-in-water emulsion composition of claim 10 wherein polymeric aqueous thickener (ii) is employed in the amount of from 0.05% to 10% by weight based on the total weight of the oil-in-water emulsion composition.
13. The oil-in-water emulsion composition of claim 10 wherein oil (iii) is employed in the amount of from 20% to 60% by weight based on the total weight of the oil-in-water emulsion composition.
14. The oil-in-water emulsion composition of claim 10 wherein oil (iii) and/or water (iv) contains at least one optional component.
15. The oil-in-water emulsion composition of claim 10 formulated as a skin care product, hair care product, polishing product, gloss enhancement product or water resistance treatment product.
16. An oil-in-water emulsion composition comprising:
(i) a polysiloxane having the general formula (II)
[M a D b T c Q d ] e (II)
wherein
M=R 4 R 5 R 6 SiO 1/2 ,
D=R 7 R 8 SiO 2/2 ,
T=R 9 SiO 3/2 ,
Q=SiO 4/2 ,
with
a=1-10
b=0-1000
c=0-1
d=0-1
e=1-10
wherein
R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are each independently an organic group, which comprises at least one group R 10 , which is selected from:
R 11 =—Z-(A-E) y , wherein
Z=a bivalent or trivalent straight-chained, cyclic or branched, saturated or unsaturated C 2 to C 20 -hydrocarbon group, which can comprise one or more groups selected from —O—, —NH—,
and can be substituted by one or more OH groups,
A is a bivalent group which is selected from the group which comprises:
y=1 or 2
E is selected from the group which comprises:
E 2 =—O—C(O)—R 12 ,
wherein R 12 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 50 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —, —C(O)— and is substituted by one or more OH groups, wherein R 13 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 6 carbon atoms, and
E 3 =
wherein E 2 is as defined above, and x=1-4,
E 4 =—NR 14 R 15 , wherein
R 14 and R 15 are the same or different and are selected from the group which comprises: hydrogen and straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 30 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —,
wherein R 13 is as defined above, —C(O)—, and can be substituted by one or more OH— and/or H 2 N— groups,
R 16 =—Z-E 2 wherein E 2 is as defined above, and
R 17 =—Z-E 5 , wherein E 5 =—NH—C(O)—R 14 , wherein R 14 is a defined above,
R 10 in addition to at least one of R 11 , R 16 and R 17 may be R 18 =—Z-E 1 , wherein E 1 is —O—C(O)—R 19 , wherein R 19 is a straight-chained, cyclic or branched, saturated or unsaturated hydrocarbon group with up to 50 carbon atoms, which can comprise one or more groups selected from —O—, —NH—, —NR 13 —, —C(O)—, wherein R 13 is as defined above, but has no hydroxyl substituent;
(ii) a polymeric aqueous thickener selected from the group consisting of crosslinked polyacrylate polymer, polyacrylamide, copolymer, anionic or cationic crosspolymer which can produce a yield point in water;
(iii) an oil selected from the group consisting of triglyceride, silicone, hydrocarbon, hydrophobic polymer, fatty alcohol, natural wax and fat, fatty acid ester of monoalcohol, and mixtures thereof; and,
(iv) an emulsion-forming amount of water,
the average particle size of oil (iii) in the emulsion being at least 5 microns, the emulsion when applied to a water-wet substrate exhibiting no significant whitening effect.
17. The oil-in-water emulsion composition of claim 16 wherein the average particle size of oil (iii) in the emulsion is at least 10 microns.
18. The oil-in-water emulsion composition of claim 16 wherein the whitening effect of the emulsion when applied to a water-wet substrate is not greater than 20%.
19. The oil-in-water emulsion composition of claim 16 wherein oil (iii) and/or water (iv) contains at least one optional component.
20. The oil-in-water emulsion composition of claim 16 formulated as a skin care product, hair care product, polishing product, gloss enhancement product or waterresistance treatment product.