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Title:
WHITE PIGMENT AND RESIN MOLDED PRODUCT CONTAINING THE SAME
Document Type and Number:
Japanese Patent JP2003026955
Kind Code:
A
Abstract:

To provide a white pigment which has a more closely pure white color and a high level of whiteness; and a resin molded product containing the same.

The white pigment is any one of two white pigments: one white pigment comprising a compound represented by the composition formula: MTiO3 (wherein M is one or more atoms selected from the group consisting of Mg, Ca, Sr and Ba) and another white pigment having an L* of 98 or more, an a* of -0.1<a*<0.1, and a b* of 0<b*<1.5 in the L*a*b* chromaticity diagram, wherein the white pigment has a (D90-D10)/D50 ratio of 5 or less where D10, D50 and D90 are their respective particle sizes at 10% cumulation, 50% cumulation and 90% cumulation in a cumulative particle distribution as measured by the laser diffraction scattering method.


Inventors:
SHIBUTA TAKUMI
UMEDA TETSU
UCHIDA YOSHIO
Application Number:
JP2002132537A
Publication Date:
January 29, 2003
Filing Date:
May 08, 2002
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO
International Classes:
C09C1/36; C09C3/06; (IPC1-7): C09C1/36; C09C3/06
Attorney, Agent or Firm:
Takashi Kuboyama (2 outside)