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Title:
PIGMENT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/114691
Kind Code:
A1
Abstract:
Disclosed is a pigment composition that contains (a) a pigment and (b) a polyvinyl alcohol / acrylic acid / methyl methacrylate copolymer or an aminoalkyl methacrylate copolymer. Such a pigment composition exhibits superior dispersion characteristics, and can be used in pharmaceutical preparations or the like.

Inventors:
NAKAJIMA, Toshiki (24-1, Takada 3-chome, Toshima-k, Tokyo 33, 〒1708633, JP)
中島 敏貴 (〒33 東京都豊島区高田3丁目24番1号 大正製薬株式会社内 Tokyo, 〒1708633, JP)
URABE, Masakiyo (24-1, Takada 3-chome, Toshima-k, Tokyo 33, 〒1708633, JP)
卜部 真精 (〒33 東京都豊島区高田3丁目24番1号 大正製薬株式会社内 Tokyo, 〒1708633, JP)
NUMAO, Mariko (24-1, Takada 3-chome, Toshima-k, Tokyo 33, 〒1708633, JP)
Application Number:
JP2011/001473
Publication Date:
September 22, 2011
Filing Date:
March 14, 2011
Export Citation:
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Assignee:
TAISHO PHARMACEUTICAL CO., LTD. (24-1, Takada 3-chome Toshima-k, Tokyo 33, 〒1708633, JP)
大正製薬株式会社 (〒33 東京都豊島区高田3丁目24番1号 Tokyo, 〒1708633, JP)
NAKAJIMA, Toshiki (24-1, Takada 3-chome, Toshima-k, Tokyo 33, 〒1708633, JP)
中島 敏貴 (〒33 東京都豊島区高田3丁目24番1号 大正製薬株式会社内 Tokyo, 〒1708633, JP)
URABE, Masakiyo (24-1, Takada 3-chome, Toshima-k, Tokyo 33, 〒1708633, JP)
卜部 真精 (〒33 東京都豊島区高田3丁目24番1号 大正製薬株式会社内 Tokyo, 〒1708633, JP)
International Classes:
C09B67/20; C09B63/00; C09D11/00
Foreign References:
JP2005325328A2005-11-24
JP2009191251A2009-08-27
JP2003261805A2003-09-19
JP2003192964A2003-07-09
JP2003192963A2003-07-09
JPS546606A1979-01-18
JP2010047625A2010-03-04
Other References:
See also references of EP 2548928A1
Attorney, Agent or Firm:
HAYAMI, Shinji (Gotanda TG Bldg. 9F, 9-2 Nishi-Gotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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Claims: