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Patent Searching and Data


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)
Application Number:
PCT/JP2004/013347
Publication Date:
May 19, 2005
Filing Date:
September 14, 2004
Export Citation:
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Assignee:
NIPPON KAYAKU KK (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:
WO2004048480A12004-06-10
WO2004048480A12004-06-10
Foreign References:
JPH10316633A1998-12-02
EP1506985A12005-02-16
EP1690905A12006-08-16
JPH0751555B21995-06-05
JPH10316633A1998-12-02
JPS4325335B11968-11-01
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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