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Patent Searching and Data


Title:
YELLOW ORGANIC COMPOUNDS AND METHOD OF PRODUCING SAME
Document Type and Number:
Japanese Patent JPS53228
Kind Code:
A
Abstract:

PURPOSE: Yellow quinophthalone derivatives of formula I(X, Y are Cl, Br; Z is phenylene or naphthylene with two carboyl groups attached to the ortho or peri positions).


Inventors:
Shimada, Keizo
Harada, Toshiaki
Koga, Masahiro
Application Number:
JP1976000074394
Publication Date:
January 05, 1978
Filing Date:
June 25, 1976
Export Citation:
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Assignee:
TEIJIN LTD
International Classes:
C09B25/00; (IPC1-7): C09B25/00