Title:
二酸化チタン顔料及びその製造方法並びにそれを配合した組成物
Document Type and Number:
Japanese Patent JP6566268
Kind Code:
B2
Abstract:
Provided is a titanium dioxide pigment having minimal yellow color and minimal yellowing due to exposure, i.e., good yellowing resistance and high pigment performance such as brightness. Also provided is a titanium dioxide pigment which has a reduced amount of volatile moisture and which does not readily decompose when blended with a resin or the like. In the present invention, a compound including 0.05-20% by mass of phosphorus and an alkaline earth metal is present on surfaces of titanium dioxide particles having an average particle diameter of 0.15-1.0 µm. The titanium dioxide pigment is manufactured by mixing an alkaline earth metal compound, a phosphate compound, and titanium dioxide particles having an average particle diameter of 0.15-1.0 µm, and bonding the compound including phosphorus and an alkaline earth metal to the titanium dioxide particles.
Inventors:
Kaoru Isobe
Norihiko Minato
Yatsunari Yata
Kensuke Osaki
Norihiko Minato
Yatsunari Yata
Kensuke Osaki
Application Number:
JP2016529302A
Publication Date:
August 28, 2019
Filing Date:
June 12, 2015
Export Citation:
Assignee:
Ishihara Sangyo Co., Ltd.
International Classes:
C09C1/36; C08K9/02; C08K9/04; C08K9/06; C08L101/00; C09C3/06; C09C3/10; C09C3/12
Domestic Patent References:
| JP11269303A | ||||
| JP2008150480A | ||||
| JP2006233343A |
Attorney, Agent or Firm:
Asamura patent office