GREEN PIGMENT FOR FILTER - MITSUI TOATSU CHEMICALS

Title:

GREEN PIGMENT FOR FILTER

Document Type and Number:

Japanese Patent JPS62235366

Kind Code:

A

Abstract:

NEW MATERIAL:The compound of formula I (R1WR10 are H, alkyl, halogen, alkoxy, or hydroxyalkyl).

EXAMPLE: The compound of formula II.

USE: Green pigment for optical filter. The coloring substrate is e.g. a thermoplastic resin such as PS, PE, PP, acrylic resin, etc., a thermosetting resin such as amino resin, phenolic resin, etc., alumina film, silica film, etc.

PREPARATION: The objective compound can be produced e.g. by mixing 4,5- dinitro-1,8-dihydroxyanthraquinone, aniline and boric acid, reacting the components at 150°C for 7hr, pouring the reaction liquid into methanol, separating the precipitated crystals by filtration and purifying with a column.

Inventors:

ITO NAOTO
MIKOTA TAMIO
AIGA HIROSHI
KARASAWA AKIO

Application Number:

JP7668586A

Publication Date:

October 15, 1987

Filing Date:

April 04, 1986

Export Citation:

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Assignee:

MITSUI TOATSU CHEMICALS

International Classes:

C09B1/514; G02B5/20; G02B5/22; (IPC1-7): C09B1/514; G02B5/20; G02B5/22

Domestic Patent References:

JPS52132182A	1977-11-05
JPS4823514A

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