Title:
DIIMONIUM SALT COMPOUND AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/044782
Kind Code:
A1
Abstract:
A near-infrared absorbing compound that does not contain antimony and arsenic, excelling in stability, especially heat resistance, light stability and resistance to hot moisture; and, produced with the use of the near-infrared absorbing compound and excelling in resistances, an infrared absorption filter, optical storage medium and resin composition. There is provided a diimonium salt compound characterized by having the structure of the formula: (1) (wherein each of R1 to R8 is independently a hydrogen atom or a substituted or unsubstituted aliphatic hydrocarbon group and each of R9 and R10 is independently a halogenated or nonhalogenated aliphatic hydrocarbon group, provided that the ring A and ring B may further have substituents), and provided a composition characterized by containing the diimonium salt.
Inventors:
IKEDA MASAAKI (JP)
KURATA TAKAAKI (JP)
TORINIWA TOSHITAKA (JP)
KURATA TAKAAKI (JP)
TORINIWA TOSHITAKA (JP)
Application Number:
PCT/JP2004/013347
Publication Date:
May 19, 2005
Filing Date:
September 14, 2004
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
IKEDA MASAAKI (JP)
KURATA TAKAAKI (JP)
TORINIWA TOSHITAKA (JP)
IKEDA MASAAKI (JP)
KURATA TAKAAKI (JP)
TORINIWA TOSHITAKA (JP)
International Classes:
C07C251/30; C07C311/48; C09B53/02; G11B7/24035; G11B7/2472; G11B7/26; G11B7/0045; G11B7/005; (IPC1-7): C07C251/30; C09B55/00; B41M5/30; G02B5/22; G11B7/24
Domestic Patent References:
WO2004048480A1 | 2004-06-10 | |||
WO2004048480A1 | 2004-06-10 |
Foreign References:
JPH10316633A | 1998-12-02 | |||
EP1506985A1 | 2005-02-16 | |||
EP1690905A1 | 2006-08-16 | |||
JPH0751555B2 | 1995-06-05 | |||
JPH10316633A | 1998-12-02 | |||
JPS4325335B1 | 1968-11-01 |
Other References:
See also references of EP 1683784A4
Attorney, Agent or Firm:
Kawaguchi, Yoshio (Yuhsen Shinjuku Gyoen Bldg. 1-11, Shinjuku
1-chome, Shinjuku-k, Tokyo 22, JP)
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