Patent US3958990A successfully refreshed from Google Patents.
US3958990A
Expired / Lapsed
US
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Transferring toner to an amine coated sheet
Assignee: Xerox Corp
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Filing: 1975-04-17
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Granted: 1976-05-25
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Expires: 1995-04-17
Abstract
Abstract A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of nonvolatile amine compounds. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the copied multicolored original.
Inventors
- 👤 Richard A. Parent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:33
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0006; G03G7/002; B; B41; B41M; B41M1/00; B41M1/26; B41M1/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
69 words
A method of xerographically preparing a color transparency copy comprising: a. forming a single color powder image of a multicolored original to be reproduced; b. transferring the powder image to a transparency comprising a thermoplastic film sheet, said sheet having at least one surface coated with a nonvolatile aliphatic amine, the amine coating having a thickness of above 0.1 mil; and c. fixing the powder image on the transparency.
Claim 2
Independent Claim
69 words
A method of xerographically preparing a color transparency copy comprising: a. forming a single color powder image of a multicolored original to be reproduced; b. transferring the powder image to a transparency comprising a thermoplastic film sheet, said sheet having at least one surface coated with a nonvolatile aliphatic amine, the amine coating having a thickness of above 0.1 mil; and c. fixing the powder image on the transparency.
Claim 3
Dependent Claim
48 words
The method of claim 1 wherein the steps of powder image formation and transfer are repeated before the fixing step, each sequence corresponding to the formation of a different color to effect multicolor reproduction, said transfer of each developed electrostatic image taking place in registration on the transparency.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein the fixing is carried out by heating.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the transparency used in the transfer step is a thermoplastic film sheet of polysulfone, polycarbonate, or polyester material.
Claim 6
Dependent Claim
56 words
The method of claim 1 wherein the step of forming a single color powder image comprises: a. exposing a charged photoconductive member to a filtered light image of the multicolored original to record a single color electrostatic latent image thereon; and b. developing the single color electrostatic latent image with toner particles complementary in color thereto.
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein said amine is selected from the group consisting of 1,8-diamino octane, n-octadecyl amine, n-dodecyl amine and mixtures thereof.
References Cited (Backward Citations)
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |