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US4508655A
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Metal complexes of halogen-substituted o-benzenedithiols
Assignee: Mitsui Chemicals Inc
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Filing: 1982-12-09
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Granted: 1985-04-02
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Expires: 2002-12-09
Abstract
Abstract Metal complexes of halogen-substituted o-benzenedithiols of the general formula: ##STR1## wherein X represents a chlorine or bromine atom, Y and Z represent each a hydrogen or chlorine atom when X is a chlorine atom or they represent each a hydrogen or bromine atom when X is a bromine atom, M represents a nickel, palladium or platinum atom, and A represents a quaternary ammonium group, are provided. These metal complexes have a high compatibility with resins and are useful as near infrared absorbers. Halogen-substituted o-benzenedithiols of the formula: ##STR2## wherein X, Y and Z have the same meaning as above; used as starting materials for the above metal complexes are also new compounds.
Inventors
- 👤 Katsuyoshi Sasagawa
- 👤 Masao Imai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:54
CPC Classifications
C; C07; C07C; C07C323/00; C07F; C07F15/00; C07F15/0006; C07F15/0013; C07F15/04; C07F15/045; C08; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
Metal complexes of halogen-substituted o-benzenedithiols of general formula (I): ##STR13## wherein X represents a chlorine or bromine atom, Y and Z represent each a hydrogen or chlorine atom when X is a chlorine atom or they represent each a hydrogen or bromine atom when X is a bromine atom, M represents a nickel, palladium or platinum atom, and A represents a quaternary ammonium group selected from the group consisting of tetra-n-butyl-ammonium, tetra-n-propylammonium and trioctylmethylammonium.
Claim 2
Dependent Claim
74 words
Metal complexes of halogen-substituted o-benzenedithiols of general formula (I): ##STR13## wherein X represents a chlorine or bromine atom, Y and Z represent each a hydrogen or chlorine atom when X is a chlorine atom or they represent each a hydrogen or bromine atom when X is a bromine atom, M represents a nickel, palladium or platinum atom, and A represents a quaternary ammonium group selected from the group consisting of tetra-n-butyl-ammonium, tetra-n-propylammonium and trioctylmethylammonium.
Claim 3
Dependent Claim
34 words
Metal complexes of halogen-substituted o-benzenedithiols according to claim 1 which are alkylammonium salts of complexes of a metal, selected from the group nickel, palladium or platinum, of bis(1,2,4-trichloro-5,6-dithiophenolate), bis(1,4-dichloro-5,6-dithiophenolate), bis(1-chloro-5,6-dithiophenolate), bis(1,2,4-tribromo-5,6-dithiophenolate), bis(1,4-dibromo-5,6-dithiophenolate) or bis(1-bromo-5,6-dithiophenolate).
References Cited (Backward Citations)
US2842578A
Cited
US2737529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |