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METHOD FOR PRODUCING SURFACE-TREATED COLORED INORGANIC PARTICLES
专利权人:
KURARAY NORITAKE DENTAL INC.
发明人:
Takehiro KAMEYA,Shogo HIRAMATSU,Masashi INOUE
申请号:
US16470661
公开号:
US20190315970A1
申请日:
2017.12.18
申请国别(地区):
US
年份:
2019
代理人:
摘要:
The present invention provides a method that enables production of a surface-treated colored inorganic particle with which the desired color tone can be consistently reproduced as intended with no variation occurring in the color tone of the compositions produced with the particle, within each production and over multiple production runs. The invention relates to a method for producing a surface-treated colored inorganic particle, comprising spray drying a mixture of a dispersion [I] and a solution [II], wherein the dispersion [I] is a dispersion of inorganic particles having an average particle diameter of 0.005 to 5 μm dispersed in a solvent with a pigment, and the solution [II] is a solution of a surface treatment agent hydrolyzed in the presence of a hydrolysis aid.
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