Treatment agent and cosmetic composition comprising co-modified organopolysiloxane
View Patent ↗A surface treatment agent or a powder treatment agent comprising a co-modified organopolysiloxane is disclosed. The co-modified organopolysiloxane is represented by the general formula: R 1 a R 2 b Q c SiO (4−a−b−c)/2 . The co-modified organopolysiloxane has a number average molecular weight of less than 4500 and includes a long-chain alkyl group and a polyoxyalkylene group in the molecule.
1. A surface treatment agent or powder treatment agent, comprising:
a co-modified organopolysiloxane represented by general formula (1-1)
the co-modified organopolysiloxane having a number average molecular weight of less than 4500 in terms of equivalent polystyrene molecular weight as measured by gel permeation chromatography and having a long-chain alkyl group and a polyoxyalkylene group in the molecule;
wherein
each R 1 is independently a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 30 carbons, or a hydrogen atom;
each R 2 is independently a substituted or unsubstituted long-chain or branched monovalent hydrocarbon having from 6 to 30 carbons;
each R is a group selected from R 1 , R 2 , and Q; however, when n3 =0, at least one of the R moieties is Q; and
Q is a hydrophilic group having a polyoxyalkylene group represented by the following structural formula (2)
—(C 2 H 4 O) r —(C 3 H 6 O) s —R 3 (2)
wherein R 3 is an alkyl group having from 1 to 4 carbons or a hydrogen atom; r is a number in a range of from 0 to 100; s is a number in a range of from 0 to 50; and “r+s” is a number in a range of from 3 to 100; and
(n1+n2+n3) is a number in a range of from 2 to 40; n1 is a number in a range of from 1 to 30; n2 is a number in a range of from 1 to 20; and n3 is a number in a range of from 0 to 50.
2. The surface treatment agent or powder treatment agent according to claim 1 , wherein the co-modified organopolysiloxane is represented by the following structural formula (1-1-1)
wherein R 1 , R 2 , and Q are defined above; (n1+n2+n3) is a number in a range of from 2.1 to 40;
n1 is a number in a range of from 1 to 30; n2 is a number in a range of from 1 to 20; and n3 is a number in a range of from 0.1 to 5.
3. A powder composition, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 1 ; and
(B) a powder or a coloring agent.
4. The powder composition according to claim 3 , wherein the component
(B) is one or more selected from an inorganic pigment powder, an organic pigment powder, and a resin powder, each having an average diameter in a range of from 1 nm to 20 μm.
5. A cosmetic composition comprising the powder composition according to claim 3 .
6. A powder-in-oil dispersion, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 1 ;
(B) a powder or coloring agent; and
(C) one or more oil agents selected from a silicone oil, a nonpolar organic compound, or a low-polarity organic compound that is a liquid at 5 to 100° C.
7. A cosmetic composition comprising the powder-in-oil dispersion according to claim 6 .
8. A powder-in-oil dispersion, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 1 ;
(B) a powder or coloring agent; and
(C1) a hydrocarbon oil that is liquid at 5 to 100° C.
9. A preparation for external use comprising the surface treatment agent or powder treatment agent according to claim 1 .
10. The preparation for external use according to claim 9 further defined as a cosmetic composition or a medicament.
11. A makeup cosmetic composition, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 1 ;
(B) a powder or coloring agent; and
(C) a silicone oil, a nonpolar organic compound, or a low polarity organic compound that is liquid from 5° C. to 100° C.
12. A powder-in-oil dispersion, comprising:
a powder or coloring agent treated with the surface treatment agent or powder treatment agent according to claim 1 ; and
one or more oil agents selected from a silicone oil, a nonpolar organic compound, or a low-polarity organic compound that is a liquid at 5 to 100° C.
13. The surface treatment agent or powder treatment agent according to claim 1 , wherein each R 1 is unsubstituted and each R 2 is unsubstituted.
14. A powder composition, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 13 ; and
(B) a powder or a coloring agent.
15. A cosmetic composition comprising the powder composition according to claim 14 .
16. A powder-in-oil dispersion, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 13 ;
(B) a powder or coloring agent; and
(C) one or more oil agents selected from a silicone oil, a nonpolar organic compound, or a low-polarity organic compound that is a liquid at 5 to 100° C.
17. A cosmetic composition comprising the powder-in-oil dispersion according to claim 16 .
18. A powder-in-oil dispersion, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 13 ;
(B) a powder or coloring agent; and
(C1) a hydrocarbon oil that is liquid at 5 to 100° C.
19. A preparation for external use comprising the surface treatment agent or powder treatment agent according to claim 13 .
20. A makeup cosmetic composition, comprising:
(A) the surface treatment agent or powder treatment agent according to claim 13 ;
(B) a powder or coloring agent; and
(C) a silicone oil, a nonpolar organic compound, or a low polarity organic compound that is liquid from 5° C. to 100° C.