Silicone compound and cosmetic containing the same

Patent metadata

Field	Value
Publication number	US-10787544-B2
Application number	US-201716315052-A
Country	US
Kind code	B2
Filing date	Apr 17, 2017
Priority date	Jul 14, 2016
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A silicone compound is represented by the formula (1) and has a weight average molecular weight of 500 to 200000. A polyhydric alcohol-modified silicone compound can provide a stable composition (emulsified product, powder dispersion, etc.) having a silicone oil and other oil as a continuous phase.

R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-d)/2   (1)

(R 1 represents an organic group, R 2 is a group represented by —Y—O—X (Y represents a divalent hydrocarbon group having 3 to 20 carbons and optionally containing at least one of an ether bond and an ester bond, and X represents a polyhydric alcohol-substituted hydrocarbon group having at least two hydroxyl groups); R 3 is a monovalent branched type organosiloxane group represented by the formula (4); and R 4 is a monovalent organosiloxane group represented by the formula (5) or the formula (6).)

M o M R p D q D R r T s T R t Q u   (4)

MM R D v1   (5)

M w D v1 D R v2 T R v3   (6)

First claim

The invention claimed is:

1. A silicone compound represented by the following average composition formula (1) and having a weight average molecular weight of 500 to 200000,
R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-d)/2   (1)

wherein, “a”, “b”, “c”, and “d” each is 1.0≤a≤2.5, 0.001≤b≤1.5, 0.001≤c≤1.5, and 0≤d≤1.0,
R 1 represents an organic group of the same kind or different kinds each other selected from an organic group represented by an alkyl group, an aryl group, an aralkyl group, and a fluorine-substituted alkyl group having 1 to 30 carbon atoms, and a general formula
—C l H 21 —O—R 5 ,  (2)

wherein, R 5 represents a hydrogen atom, a hydrocarbon group having 4 to 30 carbons, or an organic group represented by R 6 —(CO)—, R 6 represents a hydrocarbon group having 1 to 30 carbons, and “l” is an integer of 0≤l≤15;
R 2 is a group represented by a general formula (3) —Y—O—X wherein, Y represents a divalent hydrocarbon group having 3 to 20 carbons and optionally containing at least one of an ether bond and an ester bond, and X represents a polyhydric alcohol-substituted hydrocarbon group having at least two hydroxyl groups and optionally contains alkoxy group or ester group;
R 3 is a monovalent branched type organosiloxane group represented by the following general formula (4),
M o M R p D q D R r T s T R t Q u   (4)

wherein, M=R 7 3 SiO 0.5 , M R =R 7 2 R 8 SiO 0.5 , D=R 7 2 SiO, D R =R 7 R 8 SiO, T=R 7 SiO 1.5 , T R =R 8 SiO 1.5 , Q=SiO 2 , R 7 is an organic group of the same kind or different kinds selected from an alkyl group, an aryl group, an aralkyl group and a fluorine-substituted alkyl group having 1 to 30 carbons, and R 8 is an organic group represented by —C n H 2n —; “n” represents an integer of 1≤n≤5, “o” is an integer of 1 or larger, “q” and “s” each represents an integer of 0 or larger, “p”, “r”, “t”, and “u” each represents 0 or 1; with the proviso that “s”, “t” and “u” are not 0 simultaneously, a sum total of “p”, “r” and “t” is 1, and when q=0, “o” represents 2 or larger and a sum total of “s” and “u” is 1 or larger;
R 4 is a monovalent organosiloxane group represented by the following general formula (5) or general formula (6),
MM R D v1   (5)

M w D v1 D R v2 T R v3   (6)

wherein, M, M R , D, D R and T R are the same as those described above; v1 is 0≤v1≤1500, v2 and v3 each represents the number of 0 or 1; with the proviso that a sum total of v2 and v3 is 1, and v1 and v3 are not 1 or larger simultaneously; W represents an integer of 2 to 3.

2. The silicone compound according to claim 1 , wherein the silicone compound is represented by the following structural formula (1-1),

wherein, R 1 , R 2 , R 3 , and R 4 are the same as those described above; R may be the same or different from each other and represents a group selected from R 1 , R 2 , R 3 , and R 4 ; a 1 is the number in the range of 0 to 1000, b 1 is the number in the range of 0 to 200, c 1 is the number in the range of 0 to 200, and d 1 is the number in the range of 0 to 100; with the proviso that when b 1 =0, at least one of Rs is R 2 , and when c1=0, at least one of Rs is R 3 .

3. The silicone compound according to claim 1 , wherein, in the silicone compound, the “p” in the general formula (4) is p=1.

4. The silicone compound according to claim 2 , wherein, in the silicone compound, the “p” in the general formula (4) is p=1.

5. A cosmetic comprising the silicone compound according to claim 1 .

6. A cosmetic comprising the silicone compound according to claim 2 .

7. A cosmetic comprising the silicone compound according to claim 3 .

8. A cosmetic comprising the silicone compound according to claim 4 .

Assignees

• Shinetsu Chemical Co

Inventors

• Akabane Emi
• Goto Tomoyuki

Classifications

• C08G77/14 Primary

  containing silicon bound to oxygen-containing groups · CPC title

• A61Q19/04

  for chemically tanning the skin (topical sun or radiation screening or tanning preparations A61Q17/04) · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title

• C08G77/50 Primary

  by carbon linkages · CPC title

• A61Q1/10

  for eyes, e.g. eyeliner, mascara · CPC title