发明名称 Titanium dioxide dispersion and cosmetics containing the same
摘要 The present invention provides a titanium dioxide dispersion having a good dispersibility and also provides a cosmetic containing the same. The titanium dioxide dispersion comprises (a) a hydrophobized, treated titanium dioxide powder; (b) one or more oils selected from isohexadecane, isododecane, 2-ethylhexyl 2-ethylhexanoate, isononyl isononate, 2-ethylhexyl isononanoate, isononyl 2-ethylhexanoate, and polypropylene glycol dipivalate; and (c) a siloxane compound represented by the following formula (1), preferably polyoxyalkylene/alkyl comodified organopolysiloxane. R1aR2bR3cSiO(4-a-b-c)/2  (1)
申请公布号 US8968754(B2) 申请公布日期 2015.03.03
申请号 US200913056682 申请日期 2009.12.14
申请人 Shiseido Company, Ltd. 发明人 Yoshida Susumu
分类号 A61K8/02;A01N25/26;A01N25/28;A01N59/16;A61K33/24;C09C1/36;A61K8/06;A61K8/11;A61K8/29;A61K8/37;A61K8/894;A61Q17/04;A61Q19/00 主分类号 A61K8/02
代理机构 Rankin, Hill & Clark LLP 代理人 Rankin, Hill & Clark LLP
主权项 1. A titanium dioxide dispersion consisting essentially of following (a) to (c): (a) a hydrophobized, silica- or alumina-coated titanium dioxide powder; (b) one or two oils selected from isohexadecane and isododecane; and (c) a siloxane compound represented by following formula (1): R1aR2bR3cSiO(4-a-b-c)/2  (1)wherein R1s are identical or different organic groups in which at least one or more alkyl groups having 10 or more carbon atoms are contained as essential components, and R1s are selected from the organic groups having 1 to 18 carbon atoms such as an alkyl group, an aryl group, an aralkyl group, a fluorine-substituted alkyl group, an amino-substituted alkyl group, a carboxy-substituted alkyl group, and an organic group represented by following formula (2): —CmH2m—O—(C2H4O)d(C3H6O)o—R4  (2)R2s are identical or different organic groups selected from an organic group having a polyoxyalkylene group represented by following formula (3) and an organic group represented by following formula (4) wherein Q represents a divalent hydrocarbon group having 3 to 20 carbon atoms which may have 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; —CmH2m—O—(C2H4O)f(C3H6O)g—R5  (3) -Q-O—X  (4)R3 is organopolysiloxane represented by following formula (5); R4 is a hydrocarbon group having 4 to 30 carbon atoms or an organic group represented by R6—(CO)—; R5 is a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms, or an organic group represented by R6—(CO)—; R6 is a hydrocarbon group having 1 to 30 carbon atoms;d and e are respectively any integer of 0≦d≦50 and 0≦e≦50; f and g are respectively any integer of 2≦f≦200 and 0≦g≦200, and f+g is 3 to 200; h is any integer of 1≦h≦500; m and n are respectively any integer of 0≦m≦15 and 1≦n≦5; and a, b, and c are respectively any integer of 1.0≦a≦2.5, 0.001≦b≦1.5, and 0.001≦c≦1.5.
地址 Tokyo JP