EP0393592A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Color toner and process for fixing the same
Assignee: Canon Inc
•
Filing: 1990-04-17
•
Granted: —
•
Expires: 2010-04-17
Abstract
Abstract A color toner for developing electrostatic images including a resin component and a colorant, said resin component comprising a THF (tetrahydrofuran)-soluble and containing substantially no toluene-insoluble; wherein the THF-soluble provides a molecular weight distribution in the GPC (gel permeation chromatography) thereof such that there are a peak (Mp1) in the molecular weight range of 500 to 2,000, and a peak (Mp2) in the molecular weight range of 10,000 to 100,000; the weight-average molecular weight (Mw) is 10,000 to 80,000, the number-average molecular weight (Mn) is 1,500 to 8,000, and the rate of Mw/Mn >/= 3.
Inventors
- 👤 Hiromi C/O Canon K. K. Mori
- 👤 Reiko C/O Canon K. K. Morimoto
- 👤 Tatsuya C/O Canon K. K. Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:51
CPC Classifications
G; G03; G03G; G03G11/00; G03G9/00; G03G9/08; G03G9/087; G03G9/08775; G03G9/08782; G03G9/08784; G03G9/08795
Claims Analysis
Total Claims: 59
Claim 1
Independent Claim
94 words
A color toner for developing electrostatic images, comprising a resin component and a colorant, said resin component comprising a THF (tetrahydrofuran)-soluble and containing substantially no toluene-insoluble; the THF-soluble providing a molecular weight distribution in the GPC (gel permeation chromatography) thereof such that there are a peak (Mp1) in the molecular weight range of 500 to 2,000, and a peak (Mp2) in the molecular weight range of 10,000 to 100,000; the weight-average molecular weight (Mw) is 10,000 to 80,000, the number-average molecular weight (Mn) is 1,500 to 8,000, and the rate of Mw/Mn ≧ 3.
Claim 2
Dependent Claim
94 words
A color toner for developing electrostatic images, comprising a resin component and a colorant, said resin component comprising a THF (tetrahydrofuran)-soluble and containing substantially no toluene-insoluble; the THF-soluble providing a molecular weight distribution in the GPC (gel permeation chromatography) thereof such that there are a peak (Mp1) in the molecular weight range of 500 to 2,000, and a peak (Mp2) in the molecular weight range of 10,000 to 100,000; the weight-average molecular weight (Mw) is 10,000 to 80,000, the number-average molecular weight (Mn) is 1,500 to 8,000, and the rate of Mw/Mn ≧ 3.
Claim 3
Dependent Claim
22 words
A color toner according to Claim 1, wherein the THF-soluble of the resin component provides a rate (Mw/Mn) of 4.0 to 10.0.
Claim 4
Dependent Claim
21 words
A color toner according to Claim 1, wherein the THF-soluble of the resin component has an Mw of 10,000 to 40,000.
Claim 5
Dependent Claim
21 words
A color toner according to Claim 1, wherein the THF-soluble of the resin component has an Mn of 2,000 to 6,000.
Claim 6
Dependent Claim
37 words
A color toner according to Claim 1, wherein the THF-soluble of the resin component provides a rate (Mw/Mn) of 4.0 to 10.0, and has an Mw of 10,000 to 40,000, and an Mn of 2,000 to 6,000.
Claim 7
Dependent Claim
29 words
A color toner according to Claim 1, wherein the resin component contains a paraffin wax, and the paraffin wax is enclosed in the interior of the color toner particles.
Claim 8
Dependent Claim
24 words
A color toner according to Claim 1, wherein the resin component has a peak (Mp1) in the molecular weight range of 800 to 1,500.
Claim 9
Dependent Claim
30 words
A color toner according to Claim 6, wherein the paraffin wax is contained in an amount of 5 - 50 wt. % based on the weight of the resin component.
Claim 10
Dependent Claim
30 words
A color toner according to Claim 6, wherein the paraffin wax is contained in an amount of 9 - 25 wt. % based on the weight of the resin component.
Claim 11
Dependent Claim
20 words
A color toner according to Claim 6, wherein the paraffin wax has a melting point of 55 °C or higher.
Claim 12
Dependent Claim
20 words
A color toner according to Claim 6, wherein the paraffin wax has a melting point of 65 - 100 °C.
Claim 13
Dependent Claim
20 words
A color toner according to Claim 6, wherein the paraffin wax has a melting point of 70 - 80 °C.
Claim 14
Dependent Claim
37 words
A color toner according to Claim 1, which has an agglomeration degree of 40 % or lower, and provides an agglomeration degree of 40 % or lower even after left standing at 50 °C for 48 hours.
Claim 15
Dependent Claim
37 words
A color toner according to Claim 1, which has an agglomeration degree of 1 - 30 %, and provides an agglomeration degree of 1 - 30 % even after left standing at 50 °C for 48 hours.
Claim 16
Dependent Claim
35 words
A color toner according to Claim 1, wherein the colorant comprises a dye or pigment and is contained in an amount of 0.5 to 40 wt. part per 100 wt. parts of the resin component.
Claim 17
Dependent Claim
35 words
A color toner according to claim 1, wherein the colorant comprises a dye or pigment and is contained in an amount of 1 to 25 wt. parts per 100 wt. parts of the resin component.
Claim 18
Dependent Claim
26 words
A color toner according to Claim 16, wherein the colorant comprises a compound selected from the group consisting of phthalocyanine-type pigment, quinacridone-type pigment, and xanthene-type dye.
Claim 19
Dependent Claim
13 words
A color toner according to Claim 15, wherein the colorant comprises carbon black.
Claim 20
Dependent Claim
19 words
A color toner according to Claim 15, wherein the resin component comprises a vinyl-type polymer and a paraffin wax.
Claim 21
Dependent Claim
19 words
A color toner according to Claim 15, wherein the resin component comprises a vinyl-type copolymer and a paraffin wax.
Claim 22
Dependent Claim
22 words
A color toner according to Claim 1, wherein the resin component comprises a vinyl-type polymer, a vinyl-type copolymer and a paraffin wax.
Claim 23
Dependent Claim
22 words
A color toner according to Claim 1, wherein the resin component comprises a styrene-type polymer or styrene-type copolymer, and a paraffin wax.
Claim 24
Dependent Claim
12 words
A color toner according to Claim 1, which comprises non-magnetic toner particles.
Claim 25
Dependent Claim
28 words
A color toner according to Claim 1, wherein the resin component comprises a resin prepared through suspension polymerization in the presence of a paraffin wax and the colorant.
Claim 26
Dependent Claim
22 words
A color toner according to Claim 24, wherein the resin component comprises a styrene-type polymer or styrene-type copolymer prepared through suspension polymerization.
Claim 27
Dependent Claim
19 words
A color toner according to Claim 24, wherein the paraffin wax is enclosed in the interior of toner particles.
Claim 28
Dependent Claim
140 words
A process for fixing a color toner image, comprising: heating a color toner image disposed on a toner-supporting member by the medium of a film, thereby to fix the color toner image to the toner-supporting member, wherein said color toner image comprises a color toner or a mixture thereof, and the color toner comprises a resin component and a colorant; said resin component comprising a THF (tetrahydrofuran)-soluble and containing substantially no toluene-insoluble; the THF-soluble providing a molecular weight distribution in the GPC (gel permeation chromatography) thereof such that there are a peak (Mp1) in the molecular weight range of 500 to 2,000, and a peak (Mp2) in the molecular weight range of 10,000 to 100,000; the weight-average molecular weight (Mw) is 10,000 to 80,000, the number-average molecular weight (Mn) is 1,500 to 8,000, and the rate of Mw/Mn ≧ 3.
Claim 29
Dependent Claim
140 words
A process for fixing a color toner image, comprising: heating a color toner image disposed on a toner-supporting member by the medium of a film, thereby to fix the color toner image to the toner-supporting member, wherein said color toner image comprises a color toner or a mixture thereof, and the color toner comprises a resin component and a colorant; said resin component comprising a THF (tetrahydrofuran)-soluble and containing substantially no toluene-insoluble; the THF-soluble providing a molecular weight distribution in the GPC (gel permeation chromatography) thereof such that there are a peak (Mp1) in the molecular weight range of 500 to 2,000, and a peak (Mp2) in the molecular weight range of 10,000 to 100,000; the weight-average molecular weight (Mw) is 10,000 to 80,000, the number-average molecular weight (Mn) is 1,500 to 8,000, and the rate of Mw/Mn ≧ 3.
Claim 30
Dependent Claim
13 words
A process according to Claim 27, wherein the film comprises a polyimide film.
Claim 31
Dependent Claim
13 words
A process according to Claim 27, wherein the film comprises a polyester film.
Claim 32
Dependent Claim
34 words
A process according to Claim 27, wherein the film comprises a polyimide film, and a coating of a fluorine-containing resin disposed on the surface thereof capable of contacting the toner image to be fixed.
Claim 33
Dependent Claim
34 words
A process according to Claim 27, wherein the film comprises a polyester film, and a coating of a fluorine-containing resin disposed on the surface thereof capable of contacting the toner image to be fixed.
Claim 34
Dependent Claim
32 words
A process according to Claim 27, wherein the toner image disposed on the toner-supporting member is fixed to the toner-supporting member under heating, while being pressed by means of a pressing roller.
Claim 35
Dependent Claim
21 words
A process according to Claim 27, wherein the THF-soluble of the resin component provides a rate (Mw/Mn) of 4.0 to 10.0.
Claim 36
Dependent Claim
20 words
A process according to Claim 27, wherein the THF-soluble of the resin component has an Mw of 10,000 to 40,000.
Claim 37
Dependent Claim
20 words
A process according to Claim 27, wherein the THF-soluble of the resin component has an Mn of 2,000 to 6,000.
Claim 38
Dependent Claim
36 words
A process according to Claim 27, wherein the THF-soluble of the resin component provides a rate (Mw/Mn) of 4.0 to 10.0, and has an Mw of 10,000 to 40,000, and an Mn of 2,000 to 6,000.
Claim 39
Dependent Claim
28 words
A process according to Claim 27, wherein the resin component contains a paraffin wax, and the paraffin wax is enclosed in the interior of the color toner particles.
Claim 40
Dependent Claim
23 words
A process according to Claim 27, wherein the resin component has a peak (Mp1) in the molecular weight range of 800 to 1,500.
Claim 41
Dependent Claim
29 words
A process according to Claim 37, wherein the paraffin wax is contained in an amount of 5 - 50 wt. % based on the weight of the resin component.
Claim 42
Dependent Claim
29 words
A process according to Claim 37, wherein the paraffin wax is contained in an amount of 9 - 25 wt. % based on the weight of the resin component.
Claim 43
Dependent Claim
19 words
A process according to Claim 37, wherein the paraffin wax has a melting point of 55 °C or higher.
Claim 44
Dependent Claim
19 words
A process according to Claim 37, wherein the paraffin wax has a melting point of 65 - 100 °C.
Claim 45
Dependent Claim
19 words
A process according to Claim 37, wherein the paraffin wax has a melting point of 70 - 80 °C.
Claim 46
Dependent Claim
39 words
A process according to Claim 27, wherein the color toner has an agglomeration degree of 40 % or lower, and provides an agglomeration degree of 40 % or lower even after left standing at 50 °C for 48 hours.
Claim 47
Dependent Claim
39 words
A process according to Claim 27, wherein the color toner has an agglomeration degree of 1 - 30 %, and provides an agglomeration degree of 1 - 30 % even after left standing at 50 °C for 48 hours.
Claim 48
Dependent Claim
34 words
A process according to Claim 27, wherein the colorant comprises a dye or pigment and is contained in an amount of 0.5 to 40 wt. parts per 100 wt. parts of the resin component.
Claim 49
Dependent Claim
34 words
A process according to Claim 27, wherein the colorant comprises a dye or pigment and is contained in an amount of 1 to 25 wt. parts per 100 wt. parts of the resin component.
Claim 50
Dependent Claim
25 words
A process according to Claim 47, wherein the colorant comprises a compound selected from the group consisting of phthalocyanine-type pigment, quinacridone-type pigment, and xanthene-type dye.
Claim 51
Dependent Claim
12 words
A process according to Claim 46, wherein the colorant comprises carbon black.
Claim 52
Dependent Claim
18 words
A process according to Claim 27, wherein the resin component comprises a vinyl-type polymer and a paraffin wax.
Claim 53
Dependent Claim
18 words
A process according to Claim 27, wherein the resin component comprises a vinyl-type copolymer and a paraffin wax.
Claim 54
Dependent Claim
21 words
A process according to Claim 27, wherein the resin component comprises a vinyl-type polymer, a vinyl-type copolymer and a paraffin wax.
Claim 55
Dependent Claim
21 words
A process according to Claim 27, wherein the resin component comprises a styrene-type polymer or styrene-type copolymer, and a paraffin wax.
Claim 56
Dependent Claim
14 words
A process according to Claim 27, wherein the color toner comprises non-magnetic toner particles.
Claim 57
Dependent Claim
27 words
A process according to Claim 27, wherein the resin component comprises a resin prepared through suspension polymerization in the presence of a paraffin wax and the colorant.
Claim 58
Dependent Claim
21 words
A process according to Claim 55, wherein the resin component comprises a styrene-type polymer or styrene-type copolymer prepared through suspension polymerization.
Claim 59
Dependent Claim
18 words
A process according to Claim 55, wherein the paraffin wax is enclosed in the interior of toner particles.
References Cited (Backward Citations)
No citation records indexed.
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