US 11,912,828 B2
Crosslinked organosilicon resin, a method for producing same, and a cosmetic
Takuya Abe, Annaka (JP); Masayuki Konishi, Tokyo (JP); and Chihiro Hayakawa, Tokyo (JP)
Assigned to Shin-Etsu Chemical Co., Ltd., Tokyo (JP)
Appl. No. 17/258,786
Filed by Shin-Etsu Chemical Co., Ltd., Tokyo (JP)
PCT Filed Jul. 9, 2019, PCT No. PCT/JP2019/027183
§ 371(c)(1), (2) Date Jan. 8, 2021,
PCT Pub. No. WO2020/013192, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 2018-131538 (JP), filed on Jul. 11, 2018.
Prior Publication US 2021/0277187 A1, Sep. 9, 2021
Int. Cl. C08G 77/38 (2006.01); A61K 8/895 (2006.01); A61Q 1/00 (2006.01); A61Q 1/06 (2006.01); A61Q 1/10 (2006.01); A61Q 3/02 (2006.01); A61Q 5/06 (2006.01); A61Q 5/12 (2006.01); A61Q 15/00 (2006.01); A61Q 17/04 (2006.01)
CPC C08G 77/38 (2013.01) [A61K 8/895 (2013.01); A61Q 1/00 (2013.01); A61Q 1/06 (2013.01); A61Q 1/10 (2013.01); A61Q 3/02 (2013.01); A61Q 5/06 (2013.01); A61Q 5/12 (2013.01); A61Q 15/00 (2013.01); A61Q 17/04 (2013.01); A61K 2800/31 (2013.01)] 15 Claims
 
1. A cosmetic comprising a crosslinked organosilicone resin represented by the following average composition formula (1):
(R13SiO1/2)a1(R23SiO1/2)a2(R33SiO1/2)a3(R13−p(X1/2)pSiO1/2)a4(R12SiO2/2)b(R1SiO3/2)c(SiO4/2)d   (1)
wherein:
R1 is, independently of each other, a substituted or unsubstituted, monovalent hydrocarbon group having 1 to 30 carbon atoms and having no aliphatic unsaturated bond,
R2 is, independently of each other, a polyoxyalkylene-containing group, a polyglycerin-containing group, or a group selected from the groups defined for R1 and at least one of R2 in each of the R23SiO1/2 units is a polyoxyalkylene-containing group or a polyglycerin-containing group,
R3 is, independently of each other, an organopolysiloxane-containing group or a group selected from the groups defined for R1 and at least one of R3 in each of the R33SiO1/2 units is an organopolysiloxane-containing group,
X is a divalent group represented by formula (2) or formula (3):

OG Complex Work Unit Chemistry
wherein R4 is, independently of each other, a substituted or unsubstituted, monovalent hydrocarbon group having 1 to 30 carbon atoms and having no aliphatic unsaturated bond, e is an integer of 0≤e≤500 and k is an integer of 0≤k≤5;
—(CH2)2—CfH2f—(CH2)2—  (3)
wherein f is an integer of 0≤f≤20;
optionally, a part of R2, R3 and X may be a hydroxyl group, and
a1, a2, a3, a4, b, c, and d satisfy the equations, 0<a1≤400, 0≤a2≤200, 0≤a3≤400, 0<a4≤50, 0≤b≤320, 0≤c≤320, 0<d≤1,000 and 0.5≤(a1+a2+a3+a4)/d≤1.5 and p is an integer of 1≤p≤3.