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    • 3. 发明申请
    • Cocoon-Shaped Rutile-Type Titanium Dioxide, As Well As Cosmetics And External Additives For Toner Comprising the Same
    • 茧形金红石型二氧化钛,以及化妆品和外用添加剂对于包含相同的墨粉
    • US20100189666A1
    • 2010-07-29
    • US12693497
    • 2010-01-26
    • Akira NAKAMURAMasayasu MORISHITAHiromasa KONDOH
    • Akira NAKAMURAMasayasu MORISHITAHiromasa KONDOH
    • A61K8/02B32B5/16C09C1/36A61Q17/04
    • C01G23/053A61K8/0275A61K8/29A61K2800/413A61Q1/02A61Q1/04A61Q1/06A61Q1/10A61Q1/12A61Q17/04A61Q19/00A61Q19/10C01P2004/03C01P2004/04C01P2004/45C01P2004/54C01P2006/12C01P2006/62C09C1/3661C09C1/3669C09C1/3684Y10T428/2982
    • The present invention provides products comprising rutile-type titanium dioxide of a specific shape, i.e., cosmetics which have high UV blocking ability, provide a good feel upon use without leaving squeakiness or graininess on the skin, and also give a natural bare skin appearance without causing white masking, due to adequate tinting strength and covering power, as well as external additives for toner which are excellent in prevention of filming on a photosensitive member and inhibition of aggregation between toner particles.The present invention is directed to rutile-type titanium dioxide having a specific surface area of 120 to 180 m2/g in the form of oriented and aggregated particles, in which the major axial planes of rod-shaped particles each having a minor axial diameter of 3 to 10 nm are oriented and aggregated in the minor axial direction, wherein the oriented and aggregated particles have an apparent mean major axial length of 80 to 300 nm, an apparent mean minor axial length of 30 to 150 nm, and an apparent mean axial ratio (apparent mean major axial length/apparent mean minor axial length) of 1.1 to 4, and wherein both major axial ends of the oriented and aggregated particles are round- or elliptical-shaped, as well as cosmetics comprising this titanium dioxide, and external additives for toner comprising this titanium dioxide which is hydrophobically treated.
    • 本发明提供具有特定形状的金红石型二氧化钛的产品,即具有高抗紫外线能力的化妆品,在使用时提供良好的手感,而不会在皮肤上留下吱吱声或颗粒状,并且还提供天然裸露的皮肤外观而没有 由于足够的着色强度和覆盖力而引起白色掩蔽,以及防止感光构件上的成膜和抑制调色剂颗粒之间聚集的调色剂外用添加剂。 本发明涉及具有定向和凝集颗粒形式的比表面积为120-180m2 / g的金红石型二氧化钛,其中棒状颗粒的主要轴向平面各自具有小的轴向直径 3至10nm在微小轴向取向和聚集,其中取向和聚集的颗粒具有80至300nm的表观平均主轴向长度,30至150nm的表观平均次轴向长度和表观平均轴向 比例(表观平均主轴向长度/表观平均次轴向长度)为1.1至4,并且其中取向和聚集的颗粒的主要轴向端均为圆形或椭圆形,以及包含该二氧化钛和外部 包含这种被疏水处理的二氧化钛的调色剂的添加剂。