SOLID SOLUTION OF PYRROLO(3,4-C)PYRROLE WITH QUINACRIDONEQUINONE

Japanese Patent JP3737164

B2

PROBLEM TO BE SOLVED: To obtain a golden or maroon solid solution pigment having a high saturation. light fastness of color and weather fastness of color by forming a solid solution comprising a quinacridonequinone component, a quinacridone component, a pyrrolo[3,4-c]pyrrole component, and an acridone component.
SOLUTION: A quaternary solid solution comprising 40-96 wt.% quinacridonequinone component, 1-45 wt.% quinacridone component, 2-30 wt.% pyrrolo[3,4-c]pyrrole component, and 1-20 wt.% acridone component is formed. The quinacridonequinone component is a compound of formula I (wherein R is H, halogen or a 1-4C alkyl; and (x) and (y) are each 1 or 2), the quinacridone component is a compound of formula II (wherein R" is H, a halogen, a 1-4C alkyl or trifluoromethyl), the pyrrolo[3,4-c]pyrrole component is a compound of formula III (wherein Ar is an aryl substituent), and the acridone component is a compound of formula IV (wherein A is O or NH; and R' is H, a halogen or a 1-4C alkyl).

JP2008535831	Ring closure and related methods and intermediates
WO/2011/137951	ORGANIC ELECTROLUMINESCENCE DEVICES
WO/2020/140005	BCL-2 INHIBITORS

Shiva Kumar Basaling Gappa Hendy
Lindsay Kilmarry
Edward Eframe Jaffe

JP20191095A

January 18, 2006

August 08, 1995

Click for automatic bibliography generation  

Ciba Specialty Chemicals Holding Inc.

C07D471/04; C07D219/06; C07D487/04; C09B67/22; (IPC1-7): C09B67/20; C07D219/06; C07D471/04; C07D487/04

JP63201189A
JP63023969A

Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa

Previous Patent: RARE EARTH METAL-NICKEL BASED HYDROGEN STORAGE ALLOY AND ITS PRODUCTION, AND CATHODE FOR NICKEL-HYDR...

Next Patent: PICTURE RECORDING DEVICE