Title:
OXIDATION-RESISTANT WATER-SOLUBLE DYE OF COPPER/PHTHALOCYANINE COMPOUND COMPLEX, DYE COMPOSITION CONTAINING THE SAME, AND RECORDING FLUID
Document Type and Number:
WIPO Patent Application WO/2002/088256
Kind Code:
A1
Abstract:
A water-soluble dye comprising a compound represented by the following general formula (1): (1) wherein at least one of the four rings (A1) to (A4) represents an alkylbenzene ring or benzene ring or at least two thereof represent an alkylbenzene ring and a benzene ring, respectively, and the remaining rings each represents a pyridine ring or chlorobenzene ring; -SO¿3?D and -SO¿2?NHR are substituents present on (A1) to (A4); D represents a monovalent alkali metal, ammonium, or an organic ammonium; m is 1 to 4; -SO¿2?NHR represents -SO¿2?NH¿2? or a sulfonamide residue capable of forming a complex together with a copper ion; and n is 0 to 3, provided that when n is 0, then not all of the four rings (A1) to (A4) are a benzene ring.
Inventors:
TAKAHASHI KAORU (JP)
Application Number:
PCT/JP2002/004331
Publication Date:
November 07, 2002
Filing Date:
April 30, 2002
Export Citation:
Assignee:
DAIWA DYESTUFF MFG CO LTD (JP)
TAKAHASHI KAORU (JP)
TAKAHASHI KAORU (JP)
International Classes:
C09B47/24; C09B47/26; C09D11/00; (IPC1-7): C09B47/06; C09B67/22; C09B67/44; C09D11/00
Domestic Patent References:
| WO2002008340A1 | 2002-01-31 |
Foreign References:
| US5980623A | 1999-11-09 | |||
| US6015455A | 2000-01-18 | |||
| JPH11302285A | 1999-11-02 | |||
| JP2001011331A | 2001-01-16 | |||
| US4632703A | 1986-12-30 | |||
| JPH01190770A | 1989-07-31 | |||
| JPH01126381A | 1989-05-18 | |||
| JPH08302253A | 1996-11-19 | |||
| JPH05295292A | 1993-11-09 |
Attorney, Agent or Firm:
Kawasaki, Takao (Toranomon 1-chome Minato-ku, Tokyo, JP)
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