US4539284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer compositions with infrared absorbing additives
Assignee: Xerox Corp
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Filing: 1984-04-16
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Granted: 1985-09-03
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Expires: 2004-04-16
Abstract
Abstract An improved infrared sensitive flash fusible colored toner composition comprised of (1) resin particles, (2) pigment particles selected from the group consisting of cyan, magenta, yellow, blue, red and green, and (3) additives selected from the group consisting of vanadyl phthalocyanines, naphthalocyanines, and the quaternary ammonium salts selected from the group consisting of 1,1',3,3,3',3 hexylmethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate, 5,5'-dichloro-11-diphenylamine-3,3'-diethyl-10,12-ethylenethiatricarbocyanine perchlorate, 1,1',3,3,3',3'-hexamethylindotricarbocyanine perchlorate, and 3,3'-di(3-acetoxypropyl)-11-diphenylamine-10,12-ethylene-5,6,5',6'-dibenzothiatricarbocyanine perchlorate.
Inventors
- 👤 Angello J. Barbetta
- 👤 Robert J. Gruber
- 👤 Louis V. Isganitis
- 👤 Kock-Yee Law
- 👤 John W. Lin
- 👤 Ronald J. Koch
- 👤 Steven T. Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:45
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/097; G03G9/09733; G03G9/09741; G03G9/09; G03G9/0906; G03G9/0918; G03G9/09775; Y; Y10; Y10S; Y10S430/00; Y10S430/145
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
64 words
An improved infrared sensitive flash fusible colored toner composition consisting essentially of (1) resin particles, (2) pigment particles selected from the group consisting of cyan, magenta, yellow, blue, red and green, and (3) additives selected from the group consisting of vanadyl phthalocyanines, naphthalocyanines, and the quaternary ammonium salts selected from the group consisting of 1,1',3,3,3',3 hexylmethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate, 5,5'-dichloro-11-diphenylamine-3,3'-diethyl-10,12-ethylenethiatricarbocyanine perchlorate, 1,1',3,3,3',3'-hexamethylindotricarbocyanine perchlorate, and 3,3'-di(3-acetoxypropyl)-11-diphenylamine-10,12-ethylene-5,6,5',6'-dibenzothiatricarbocyanine perchlorate.
Claim 2
Dependent Claim
64 words
An improved infrared sensitive flash fusible colored toner composition consisting essentially of (1) resin particles, (2) pigment particles selected from the group consisting of cyan, magenta, yellow, blue, red and green, and (3) additives selected from the group consisting of vanadyl phthalocyanines, naphthalocyanines, and the quaternary ammonium salts selected from the group consisting of 1,1',3,3,3',3 hexylmethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate, 5,5'-dichloro-11-diphenylamine-3,3'-diethyl-10,12-ethylenethiatricarbocyanine perchlorate, 1,1',3,3,3',3'-hexamethylindotricarbocyanine perchlorate, and 3,3'-di(3-acetoxypropyl)-11-diphenylamine-10,12-ethylene-5,6,5',6'-dibenzothiatricarbocyanine perchlorate.
Claim 3
Dependent Claim
14 words
An improved composition in accordance with claim 1 wherein the additive is vanadyl phthalocyanine.
Claim 4
Dependent Claim
19 words
An improved toner composition in accordance with claim 1 wherein the additive is vanadyl naphthalocyanine or tetra-tertiarybutyl vanadyl naphthalocyanine.
Claim 5
Dependent Claim
23 words
An improved toner composition in accordance with claim 3 wherein the tetra-tertiarybutyl vanadyl naphthalocyanine contains from about 1 to about 3 tertiarybutyl groups.
Claim 6
Dependent Claim
21 words
An improved toner composition in accordance with claim 1 wherein the quaternary ammonium salt is 1,1',3,3,3',3 hexylmethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate, or 5,5'-dichloro-11-diphenylamine-3,3'-diethyl-10,12-ethylenethiatricarbocyanine perchlorate.
Claim 7
Dependent Claim
29 words
An improved toner composition in accordance with claim 1 wherein the resin particles are comprised of a styrene n-butyl methacrylate copolymer, a polyester resin, or a styrene butadiene copolymer.
Claim 8
Dependent Claim
22 words
An improved toner composition in accordance with claim 1 wherein the pigment particles are selected from cyan, magenta, yellow, or mixtures thereof.
Claim 9
Dependent Claim
33 words
An improved toner composition in accordance with claim 7 wherein the cyan pigment is copper tetra-4-(octadecylsulfonomido) phthalocyanine, the magenta pigment is 2,9-dimethyl substituted quinacridone, and the yellow pigment is 2,5-dimethoxy-4-sulfonanilide phenylazo 4-chloro-2,5-dimethoxy acetoacetanilide.
Claim 10
Dependent Claim
73 words
A toner composition in accordance with claim 1 wherein the resin particles are present in an amount of from about 80 percent by weight to about 90 percent by weight, the pigment particles are present in an amount of from about 5 percent by weight to about 15 percent by weight, and the additive particles are present in an amount of from about 1 percent by weight to about 20 percent by weight.
Claim 11
Dependent Claim
16 words
A developer composition comprised of the toner composition of claim 1 having incorporated therein carrier particles.
Claim 12
Dependent Claim
28 words
A developer composition in accordance with claim 10 wherein the resin particles are comprised of a styrene n-butyl methacrylate copolymer, a polyester resin, or a styrene butadiene copolymer.
Claim 13
Dependent Claim
20 words
A developer composition in accordance with claim 10 wherein the pigments are selected from cyan, magenta, yellow or mixtures thereof.
Claim 14
Dependent Claim
32 words
A developer composition in accordance with claim 12 wherein the cyan pigment is copper tetra-4-(octadecylsulfonomido) phthalocyanine, the magenta pigment is 2,9-dimethyl substituted quinacridone, and the yellow pigment is 2,5-dimethoxy-4-sulfonanilide phenylazo 4-chloro-2,5-dimethoxy acetoacetanilide.
Claim 15
Dependent Claim
23 words
A developer composition in accordance with claim 10 wherein the carrier particles are comprised of a core coated with a resinous polymeric composition.
Claim 16
Dependent Claim
29 words
A developer composition in accordance with claim 10 wherein the core is steel, and the coating is a fluorocarbon polymer, or a terpolymer of styrene, methylmethacrylate, and a silane.
Claim 17
Dependent Claim
21 words
A developer composition in accordance with claim 10 wherein the additive is vanadyl phthalocyanine, vanadyl naphthalocyanine, or a tetra-tertiarybutyl vanadyl naphthalocyanine.
Claim 18
Dependent Claim
64 words
A method for developing electrostatic latent images of a desired color which comprises forming an electrostatic latent image on a photoresponsive imaging member, followed by contacting the image with the toner composition of claim 1, subsequently transferring the image to a suitable substrate, and permanently affixing the image thereto with a device generating light of a wavelength in the infrared region of the spectrum.
Claim 19
Dependent Claim
17 words
A method of imaging in accordance with claim 17 wherein the fixing device is a Xenon lamp.
Claim 20
Dependent Claim
35 words
A method of imaging in accordance with claim 17 wherein the toner composition is comprised of a styrene n-butyl methacrylate copolymer, and a cyan pigment, a magenta pigment, and a yellow pigment, or mixtures thereof.
Claim 21
Dependent Claim
21 words
A method of imaging in accordance with claim 17 wherein the additive component is vanadyl phthalocyanine or a tetra-tertiarybutyl vanadyl naphthalocyanine.
Claim 22
Dependent Claim
24 words
A method of imaging in accordance with claim 17 wherein the carrier particles are comprised of a core coated with a resinous polymeric composition.
Claim 23
Dependent Claim
25 words
A method of imaging in accordance with claim 21 wherein the coating is a fluorocarbon polymer or a terpolymer of styrene, methylmethacrylate and a silane.
Claim 24
Dependent Claim
33 words
A method of imaging in accordance with claim 17 wherein the cyan pigment is copper tetra-4-(octadecylsulfonomide) phthalocyanine, the magenta pigment is 2,9-dimethyl substituted quinacridone, and the yellow pigment is 2,5-dimethoxy-4-sulfonanilide phenylazo 4-chloro-2,5-dimethoxy acetoacetanilide.
Claim 25
Dependent Claim
18 words
A method of imaging in accordance with claim 17 wherein fixing is accomplished by a flash fusing process.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |