PROCESS FOR PREPARING YELLOW QUINOPHTHALONE PIGMENT

Title:

PROCESS FOR PREPARING YELLOW QUINOPHTHALONE PIGMENT

Document Type and Number:

Japanese Patent JPS5210330

Kind Code:

A

Abstract:

PURPOSE: Quinophthalone pigments of formula I (A is benzene ring w which may be substituted by a non-ionizable group, B is benzene ring which may be substituted by halogen; X is H or halogen).

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Inventors:

KITAO TEIJIROU
MATSUOKA MASARU
ODA HIRONORI

Application Number:

JP8583275A

Publication Date:

January 26, 1977

Filing Date:

July 15, 1975

Export Citation:

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Assignee:

TEIJIN LTD

International Classes:

C09B25/00; (IPC1-7): C09B25/00

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