Patent US4074009A successfully refreshed from Google Patents.
US4074009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driographic master
Assignee: 3M Co
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Filing: 1975-12-08
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Granted: 1978-02-14
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Expires: 1995-12-08
Abstract
Abstract A driographic plate capable of being direct imaged by pen, pencil, typewriter, toner powder, etc. comprising a substrate having a coating thereon, the coating comprising a continuous medium having a solid fluorinated compound containing at least one fluorinated aliphatic radical uniformly dispersed therethrough in a manner such that the coating surface is ink repellent when dry. On direct imaging, the imaged areas will readily accept ink and prints can be made therefrom without necessity of a press dampening system.
Inventors
- 👤 James F. Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:50
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; G03G13/286; B; B41; B41N; B41N1/00; B41N1/003; Y; Y10; Y10S; Y10S428/00; Y10S428/908; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
An article capable of providing a driographic printing plate which can be direct imaged, comprising a substrate having a coating on at least one surface thereof, said coating comprising a fused particulate binder compound characterized by high surface energy and easy wettability when exposed to printing ink having a solid, at less than 100° F, heat-softenable fluorinated compound uniformly dispersed therethrough in a manner such that the surface of said coating is oleo ink repellent when dry; said fluorinated compound containing at least one fluorinated aliphatic radical therein having at least one terminal perfluoromethyl group, said coating containing no material serving to flow at ordinary image-marking temperatures to heal image-marked areas therein.
Claim 2
Dependent Claim
112 words
An article capable of providing a driographic printing plate which can be direct imaged, comprising a substrate having a coating on at least one surface thereof, said coating comprising a fused particulate binder compound characterized by high surface energy and easy wettability when exposed to printing ink having a solid, at less than 100° F, heat-softenable fluorinated compound uniformly dispersed therethrough in a manner such that the surface of said coating is oleo ink repellent when dry; said fluorinated compound containing at least one fluorinated aliphatic radical therein having at least one terminal perfluoromethyl group, said coating containing no material serving to flow at ordinary image-marking temperatures to heal image-marked areas therein.
Claim 3
Dependent Claim
13 words
The article of claim 1 wherein said binder compound comprises polyvinyl chloride resin.
Claim 4
Dependent Claim
18 words
The article of claim 1 wherein said radical is monovalent, saturated, and contains at least three carbon atoms.
Claim 5
Dependent Claim
22 words
The article of claim 1 wherein said fluorinated compound is a polymer and said radical is a pendant group within said polymer.
Claim 6
Dependent Claim
10 words
The article of claim 1 wherein said substrate is paper.
Claim 7
Dependent Claim
10 words
The article of claim 1 wherein said substrate is polyester.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |