Patent US4812383A successfully refreshed from Google Patents.
US4812383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming electrophotographic images on a self-fusing substrate
Assignee: Xerox Corp
•
Filing: 1987-10-29
•
Granted: 1989-03-14
•
Expires: 2007-10-29
Abstract
Abstract Disclosed is a process for forming permanent electrophotographic images comprising: (a) generating, in an electrophotographic imaging apparatus, an electrostatic latent image; (b) developing said image with a liquid developer composition which comprises a colorant, a solvent, and a first polymeric material having adhesive properties when wetted with said solvent; (c) transferring said image to a substrate while said image is wet, said substrate having a coating comprising a second polymeric material having adhesive properties when wetted with said solvent; and (d) permitting said image to dry on said substrate.
Inventors
- 👤 D. Paul Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:34
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/13; G03G13/00; G03G13/06; G03G13/10; G03G13/14; G03G13/16; G03G13/22
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
82 words
A process for forming permanent electrophotographic images comprising: (a) generating, in an electrophotographic imaging apparatus, an electrostatic latent image; (b) developing said image with a liquid developer composition comprising a colorant, a solvent and a polymeric material having adhesive properties when wetted with said solvent and exhibiting solubility in said solvent; (c) transferring said image to a substrate while said image is wet, said substrate having a coating comprising said polymeric material; and (d) permitting said image to dry on said substrate.
Claim 2
Dependent Claim
82 words
A process for forming permanent electrophotographic images comprising: (a) generating, in an electrophotographic imaging apparatus, an electrostatic latent image; (b) developing said image with a liquid developer composition comprising a colorant, a solvent and a polymeric material having adhesive properties when wetted with said solvent and exhibiting solubility in said solvent; (c) transferring said image to a substrate while said image is wet, said substrate having a coating comprising said polymeric material; and (d) permitting said image to dry on said substrate.
Claim 3
Dependent Claim
29 words
A process in accordance with claim 1 wherein said coating is present on said substrate in an amount of from about 1 to about 100 grams per square meter.
Claim 4
Dependent Claim
29 words
A process in accordance with claim 2 wherein said coating is present on said substrate in an amount of from about 6 to about 8 grams per square meter.
Claim 5
Dependent Claim
14 words
A process in accordance with claim 1 wherein said solvent comprises an isoparaffinic hydrocarbon.
Claim 6
Dependent Claim
17 words
A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer.
Claim 7
Dependent Claim
17 words
A process in accordance with claim 5 wherein the solvent of the developer comprises an isoparaffinic hydrocarbon.
Claim 8
Dependent Claim
29 words
A process in accordance with claim 6 wherein the coating for the substrate is present in an amount of from about 1 to about 100 grams per square meter.
Claim 9
Dependent Claim
26 words
A process in accordance with claim 7 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter.
Claim 10
Dependent Claim
14 words
A process in accordance with claim 1 wherein said coating includes a pigment material.
Claim 11
Dependent Claim
14 words
A process in accordance with claim 9 wherein said pigment material is a silica.
Claim 12
Dependent Claim
15 words
A process in accordance with claim 1 wherein said coating includes a vinyl resin composition.
Claim 13
Dependent Claim
25 words
A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer and said coating includes a vinyl resin composition.
Claim 14
Dependent Claim
33 words
A process in accordance with claim 12 wherein said solvent comprises an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter.
Claim 15
Dependent Claim
26 words
A process in accordance with claim 13 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter.
Claim 16
Dependent Claim
51 words
A process in accordance with claim 12 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight, and said vinyl resin composition is present in said coating in an amount of from about 1 to about 70 percent by weight.
Claim 17
Dependent Claim
52 words
A process in accordance with claim 15 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, and said vinyl resin composition is present in said coating in an amount of from about 1 to about 20 percent by weight.
Claim 18
Dependent Claim
14 words
A process in accordance with claim 12 wherein said coating includes a pigment material.
Claim 19
Dependent Claim
33 words
A process in accordance with claim 17 wherein said solvent is an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter.
Claim 20
Dependent Claim
26 words
A process in accordance with claim 18 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter.
Claim 21
Dependent Claim
72 words
A process in accordance with claim 17 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight, said vinyl resin composition is present in said coating in an amount of from about 1 to about 70 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight.
Claim 22
Dependent Claim
73 words
A process in accordance with claim 20 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, said vinyl resin composition is present in said coating in an amount of from about 1 to about 20 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight.
Claim 23
Dependent Claim
24 words
A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer and said coating includes a pigment material.
Claim 24
Dependent Claim
33 words
A process in accordance with claim 22 wherein said solvent comprises an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter.
Claim 25
Dependent Claim
26 words
A process in accordance with claim 23 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter.
Claim 26
Dependent Claim
50 words
A process in accordance with claim 22 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight.
Claim 27
Dependent Claim
51 words
A process in accordance with claim 25 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight.
Claim 28
Dependent Claim
19 words
A process in accordance with claim 1 wherein said electrophotographic imaging device is a Xerox® 175 Medical Imaging System.
Claim 29
Dependent Claim
19 words
A process in accordance with claim 3 wherein said electrophotographic imaging device is a Xerox® 175 Medical Imaging System.
References Cited (Backward Citations)
US3419411A
Cited
US3758327A
Cited
US3839032A
Cited
US3928656A
Cited
US4332851A
Cited
US4259425A
Cited
US4461823A
Cited
US4661431A
Cited
US4624544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |