Patent ID: 8968754
Filing Date: 2015-03-03
Classification: A61K,A61Q,C01P,C09C

Abstract:
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): wherein R 1 s 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 R 1 s 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): R 2 s 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; R 3 is organopolysiloxane represented by following formula (5); R 4 is a hydrocarbon group having 4 to 30 carbon atoms or an organic group represented by R 6 —(CO)—; R 5 is a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms, or an organic group represented by R 6 —(CO)—; R 6 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.