Silicone compound and cosmetic containing thereof

Patent metadata

Field	Value
Publication number	US-9890252-B2
Application number	US-201615334355-A
Country	US
Kind code	B2
Filing date	Oct 26, 2016
Priority date	Nov 16, 2015
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

The present invention provides a silicone compound shown by the formula (1) and having a weight-average molecular weight in the range of 500 to 200,000, R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-d)/2 (1), wherein R 1 represents the same or different organic group, R 2 represents a polyoxyalkylene group shown by —C m H 2m —O—(C 2 H 4 O) g (C 3 H 6 O) h R 6 , R 3 represents a branched type monovalent organosiloxane group shown by the following general formula (4), M o M R p D q D R r T s T R t Q u (4), and R 4 represents a monovalent organosiloxane group shown by the following general formula (5) or the general formula (6), MM R D v-1 (5), M w D v-1 D R v-2 T R v-3 (6). This provides a silicone compound which has excellent emulsification ability and emulsion stability to silicone oil, and can secure high temporal stability.

First claim

The invention claimed is:

1. A silicone compound shown by the following average composition formula (1) and having a weight-average molecular weight in the range of 500 to 200,000,
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 represent a number satisfying 1.0≦a≦2.5, 0.001≦b≦1.5, 0.001≦c≦1.5, and 0≦d≦1.0;
R 1 represents the same or different organic group selected from an alkyl group having 1 to 30 carbon atoms;
R 2 represents the same or different polyoxyalkylene group shown by the general formula (3) —C m H 2m —O—(C 2 H 4 O) g (C 3 H 6 O) h R 6 ,

wherein R 6 represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms; and “g” and “h” each represent an integer satisfying 2≦g≦200, 0≦h≦200, and g+h is 3 to 200; and “m” represents an integer satisfying 1≦m≦15;
R 3 represents the same or different branched type monovalent organosiloxane group shown 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 , and Q=SiO 2 ; R 7 represents the same or different organic group selected from an alkyl group having 1 to 30 carbon atoms; R 8 represents an organic group shown by —C n H 2n —; “n” represents an integer satisfying 1≦n≦5; “o” represents an integer of 1 or more; “q” and “s” each represent an integer of 0 or more; “p”, “r”, “t”, and “u” each represent 0 or 1; with the proviso that “s”, “t”, and “u” are not equal to 0 at the same time, the sum of “p”, “r”, and “t” is 1, and when q=0, “o” is 2 or more and the sum of “s” and “u” is 1 or more;
R 4 represents the same or different monovalent organosiloxane group shown by the following general formula (5) or the general formula (6),
MM R D v-1   (5)

M w D v-1 D R v-2 T R v-3   (6)

wherein M, M R , D, D R , and T R have the same meanings defined above; v-1 represents a number satisfying 0≦v-1≦500; v-2 and v-3 each represent 0 or 1; with the proviso that the sum of v-2 and v-3 is 1, and the both of v-1 and v-3 are not 1 or more at the same time; and “w” represents an integer of 2 to 3.

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

wherein R 1 , R 2 , R 3 , and R 4 have the same meanings as defined above; R represents the same or different group selected from R 1 , R 2 , R 3 , and R 4 ; a1 represents a number in a range of 0 to 1000, b1 represents a number in a range of 0 to 200, c1 represents a number in a range of 0 to 200, d1 represents a number in a range of 0 to 100; with the proviso that at least one R is R 2 when b1=0, and at least one R is R 3 when c1=0.

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

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

• C08G77/70

  Siloxanes defined by use of the MDTQ nomenclature · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title

• C08G77/14 Primary

  containing silicon bound to oxygen-containing groups · CPC title

• C08G77/50

  by carbon linkages · CPC title

• A61K8/893

  modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone · CPC title