β-Isoindigo coloring agent

Details β-Isoindigo coloring agent β-Isoindigo coloring agent

2007-10-23

2007-10-23

Saeed, Kamal A. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C523S161000, C548S457000

Reexamination Certificate

active

10542529

ABSTRACT:
The invention relates to a compound of general formula (I) in which C represents an alicyclic or heterocyclic group having C2vsymmetry, and B represents ortho-C6-C18-arylene. The invention also relates to a method for producing this compound and to the use thereof as a coloring agent for coloring or pigmenting organic or inorganic high-molecular or low-molecular, particularly high-molecular, organic materials.

REFERENCES:
patent: 2254354 (1941-09-01), Davies
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patent: 4707548 (1987-11-01), Lotsch et al.
patent: 0101954 (1982-08-01), None
patent: 0190692 (1986-08-01), None
English Translation of PCT IPER for PCT/EP03/14201, Sep. 22, 2005.
PCT IPER for PCT/EP 03/14201, Sep. 22, 2005.
PCT Search Report for PCT/DP 03/14201, May 7, 2004.
R.P. Smirnov et al., “Synthesis and Study of Properties of Macrocycles, I. Reaction of Diamio-β-isoindigo with salts of hydrazine.” Vysshikh, Uchebn. zavednii, Khim. I Khim Tekhnol. No. 6 pp. 1022-1024 (1963) AND English Abstract.

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