US4673631A
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Toner, charge-imparting material and composition containing metal complex
Assignee: Orient Chemical Industries Ltd
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Filing: 1985-12-13
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Granted: 1987-06-16
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Expires: 2005-12-13
Abstract
Abstract A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition contains a metal complex of an amino acid compound having an amino or mono-substituted amino group and a carboxylic group. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner.
Inventors
- 👤 Hiroshi Fukumoto
- 👤 Katsuhiko Tanaka
- 👤 Yoji Kawagishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:04
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/097; G03G9/09783
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
84 words
A positively chargeable dry toner for developing electrostatic latent images, comprising: a binder resin, a colorant and a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted to to complex with said metal, and a carboxyl group adapted to complex with said metal; said metal complex comprising a complex of said amino acid compound and a divalent or trivalent metal atom selected from the group consisting of Ni, Co, Zn, Cd, Cu, Fe, Mn, Hg, Pb and Cr.
Claim 2
Dependent Claim
84 words
A positively chargeable dry toner for developing electrostatic latent images, comprising: a binder resin, a colorant and a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted to to complex with said metal, and a carboxyl group adapted to complex with said metal; said metal complex comprising a complex of said amino acid compound and a divalent or trivalent metal atom selected from the group consisting of Ni, Co, Zn, Cd, Cu, Fe, Mn, Hg, Pb and Cr.
Claim 3
Dependent Claim
27 words
The toner according to claim 1, which comprises 0.1 to 20 parts by weight of the metal complex per 100 parts by weight of the binder resin.
Claim 4
Dependent Claim
24 words
The toner according to claim 1, wherein said metal complex comprises two or three molecules of an identical amino acid compound as ligands thereof.
Claim 5
Dependent Claim
31 words
The toner according to claim 1, wherein said metal complex comprises the amino acid compound as a ligand and also another compound as a ligand other than the amino acid compound.
Claim 6
Dependent Claim
109 words
The toner according to claim 1, wherein said metal complex is a chelate compound represented by the following formula (I): ##STR7## wherein R 1 , R 2 , R 4 and R 5 are the same or different groups selected from hydrogen, halogen, nitro, amino, substituted amino, alkyl (C 1 -C 18 ), sulfamoyl, substituted sulfamoyl, or those groups which form a ring by a combination of R 1 and R 2 or R 4 and R 5 ; R 3 and R 6 are the same or different groups selected from hydrogen, alkyl (C 1 -C 9 ), benzyl, phenyl or substituted phenyl; and Me is a metal.
Claim 7
Dependent Claim
33 words
The toner according to claim 5, wherein the Me in the formula (I) is a divalent metal selected from the group consisting of Ni, Co, Zn, Cd, Cu, Fe, Mn, Hg and Pb.
Claim 8
Dependent Claim
49 words
The toner according to claim 1, wherein said amino acid compound is represented by the formula: ##STR8## wherein R 7 , R 8 and R 9 are respectively hydrogen or an alkyl and may be the same or different groups, and n is an integer of 1 to 3.
Claim 9
Dependent Claim
27 words
The toner according to claim 7, wherein said metal complex is a complex of a metal selected from the group consisting of Ni, Zn, Cr and Co.
Claim 10
Dependent Claim
15 words
The toner according to claim 7, wherein said alkyl has 1 to 9 carbon atoms.
Claim 11
Dependent Claim
19 words
The toner according to claim 1, wherein said amino acid compound is hexahydroanthranilic acid or an alkyl derivative thereof.
Claim 12
Dependent Claim
27 words
The toner according to claim 10, wherein said metal complex is a complex of a metal selected from the group consisting of Ni, Co, Zn and Cr.
Claim 13
Dependent Claim
16 words
The toner according to claim 1, wherein said amino acid compound is an aliphatic amino acid.
Claim 14
Dependent Claim
27 words
The toner according to claim 12, wherein said metal complex is a complex of a metal selected from the group consisting of Zn, Ni, Co and Cr.
Claim 15
Dependent Claim
54 words
A charge-imparting material for imparting charge to a developer for developing electrostatic latent images comprising a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted complex with said metal and a carboxyl group adapted to complex with said metal, and a base material carrying the amino acid compound.
Claim 16
Dependent Claim
54 words
A charge-imparting material for imparting charge to a developer for developing electrostatic latent images comprising a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted complex with said metal and a carboxyl group adapted to complex with said metal, and a base material carrying the amino acid compound.
Claim 17
Dependent Claim
110 words
The charge-imparting material according to claim 14, wherein said metal complex is a chelate compound represented by the following formula (I): ##STR9## wherein R 1 , R 2 , R 4 and R 5 are the same or different groups selected from hydrogen, halogen, nitro, amino, substituted amino, alkyl (C 1 -C 18 ), sulfamoyl, substituted sulfamoyl, or those groups which form a ring by a combination of R 1 and R 2 or R 4 and R 5 ; R 3 and R 6 are the same or different groups selected from hydrogen, alkyl (C 1 -C 9 ), benzyl, phenyl or substituted phenyl; and Me is a metal.
Claim 18
Dependent Claim
50 words
The charge-imparting material according to claim 14, wherein said amino acid compound is represented by the formula: ##STR10## wherein R 7 , R 8 and R 9 are respectively hydrogen or an alkyl and may be the same or different groups, and n is an integer of 1 to 3.
Claim 19
Dependent Claim
28 words
The charge-imparting material according to claim 16, wherein said metal complex is a complex of a metal selected from the group consisting of Ni, Zn, Cr and Co.
Claim 20
Dependent Claim
16 words
The charge-imparting material according to claim 16, wherein said alkyl has 1 to 9 carbon atoms.
Claim 21
Dependent Claim
20 words
The charge-imparting material according to claim 14, wherein said amino acid compound is hexahydroanthranilic acid or an alkyl derivative thereof.
Claim 22
Dependent Claim
28 words
The charge-imparting material according to claim 19, wherein said metal complex is a complex of a metal selected from the group consisting of Ni, Co, Zn and Cr.
Claim 23
Dependent Claim
17 words
The charge-imparting material according to claim 14, wherein said amino acid compound is an aliphatic amino acid.
Claim 24
Dependent Claim
28 words
The charge-imparting material according to claim 21, wherein said metal complex is a complex of a metal selected from the group consisting of Zn, Ni, Co and Cr.
Claim 25
Dependent Claim
22 words
The charge-imparting material according to claim 14, wherein said base material comprises magnetic particles, carrier particles, a sleeve or a doctor blade.
Claim 26
Dependent Claim
44 words
A triboelectrically chargeable composition comprising: a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted to complex with said metal and a carboxyl group adapted to complex with said metal, and a base material carrying the metal complex.
Claim 27
Dependent Claim
44 words
A triboelectrically chargeable composition comprising: a metal complex of an amino acid compound having an amino or mono-substituted amino group adapted to complex with said metal and a carboxyl group adapted to complex with said metal, and a base material carrying the metal complex.
Claim 28
Dependent Claim
14 words
The toner according to claim 1, wherein said binder resin is a styrene copolymer.
Claim 29
Dependent Claim
35 words
The toner according to claim 25, wherein said binder resin is a styrene copolymer selected from the group consisting of a styrene-acrylate copolymer, a styrene-methacrylate copolymer, a styrene-acrylate-monoalkyl maleate copolymer and a styrene-methacrylate-monoalkyl maleate copolymer.
Claim 30
Dependent Claim
28 words
The toner according to claim 8, wherein said metal complex comprises 2 or 3 mol parts of said amino acid compound and 1 atom. part of said metal.
Claim 31
Dependent Claim
29 words
The toner according to claim 11, wherein said metal complex comprises 2 mol parts of hexahydroanthranilic acid or an alkyl derivative thereof and 1 atom part of said metal.
Claim 32
Dependent Claim
25 words
The toner according to claim 13, wherein said metal complex comprises 3 mol parts of aliphatic amino acid and 1 atom part of said metal.
Claim 33
Dependent Claim
17 words
The toner according to claim 1, which is admixed with a silica having hydrophobicity and positive chargeability.
Claim 34
Dependent Claim
116 words
The toner according to claim 31, wherein said metal complex is a chelate compound represented by the following formula: ##STR11## wherein R 1 , R 2 , R 4 and R 5 are the same or different and are selected from the group consisting of hydrogen, halogen, nitro, amino, substituted amino, alkyl (C 1 -C 18 ), sulfamoyl, substituted sulfamoyl and those groups which form a ring by a combination of R 1 and R 2 , or R 4 and R 5 ; and wherein R 3 and R 6 are the same or different and are selected from the group consisting of hydrogen, alkyl (C 1 -C 9 ), benzyl, phenyl and substituted phenyl.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-06-15 | 1990-12-15 | 1991-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-15 | 1994-12-15 | 1995-06-16 | $3760.00 | Window Closed / Lapsed |
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