公开(公告)号：US06576052B1

公开(公告)日：2003-06-10

申请号：US10070763

申请日：2002-03-12

申请人： Hideo Takahashi ,  Masaki Shimojo ,  Toshihiko Akamatsu

发明人： Hideo Takahashi ,  Masaki Shimojo ,  Toshihiko Akamatsu

IPC分类号： C09C136

CPC分类号： C08K9/02 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/60 ,  C01P2006/82 ,  C01P2006/90 ,  C08K9/04 ,  C09C1/3661 ,  C09C1/3684 ,  C09C1/3692

摘要： The titanium dioxide pigment of the present invention comprises titanium dioxide particles, the coating layer containing the aluminum phosphate compound and the coating layer containing the hydrolyzate of the organosilane compound, on the surface of the particles, in which a difference in water content between 100° C. and 300° C., determined by the Karl Fischer method, is not greater than 1500 ppm, and is thus excellent in light fastness, hydrophobicity and dispersibility. In particular, the titanium dioxide pigment of the invention is extremely advantageous as a colorant for plastics, which requires light fastness (resistance to discoloration) lacing resistance and dispersibility, to a high degree.

摘要翻译： 本发明的二氧化钛颜料包含二氧化钛颗粒，包含磷酸铝化合物的涂层和含有有机硅烷化合物的水解产物的涂层在颗粒表面上，其中水含量在100℃之间 C.和300℃，通过卡尔费休法测定，不大于1500ppm，因此耐光性，疏水性和分散性优异。 特别地，本发明的二氧化钛颜料作为塑料用着色剂是非常有利的，其要求耐光性（抗变色性）耐拉链性和分散性。