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Title:
NON-HALOGEN YELLOW PIGMEN COMPOSITION FOR COLORING PLASTIC, AND PLASTIC MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2016/199535
Kind Code:
A1
Abstract:
Provided is a benzimidazolone pigment composition that can provide coloration having excellent heat resistance, a method for producing the pigment composition, and a colored plastic molded article using the pigment composition. It was discovered that a non-halogen benzimidazolone pigment composition comprising the pigment C.I. pigment yellow 120 and the pigment C.I. pigment yellow 180, in a plastic molded object that has undergone a melt-kneading step, particularly suppresses hue changes, even after undergoing a thermal history, by at least as much as the hue changes are suppressed in plastic molded objects using the respective pigments alone.

Inventors:
AZECHI Kei (Central Research Laboratories 631, Sakado, Sakura-sh, Chiba 68, 〒2858668, JP)
YASUI Kengo (Central Research Laboratories 631, Sakado, Sakura-sh, Chiba 68, 〒2858668, JP)
SUGIYAMA Kazuhiro (Central Research Laboratories 631, Sakado, Sakura-sh, Chiba 68, 〒2858668, JP)
Application Number:
JP2016/064141
Publication Date:
December 15, 2016
Filing Date:
May 12, 2016
Export Citation:
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Assignee:
DIC CORPORATION (35-58, Sakashita 3-chome Itabashi-k, Tokyo 20, 〒1748520, JP)
International Classes:
C09B67/22; B29C45/00; C08K5/3447; C08L101/00; C09B29/33; C09B67/20
Foreign References:
JPH09272265A1997-10-21
JP2009079119A2009-04-16
Attorney, Agent or Firm:
KONO Michihiro (7-20 Nihonbashi 3-chome, Chuo-k, Tokyo 33, 〒1038233, JP)
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