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US4005437A
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Method of recording information in which the electron beam sensitive material contains 4,4'-bis(3-diazo-3-4-oxo-1-naphthalene sulfonyloxy)benzil
Assignee: RCA Corp
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Filing: 1975-04-18
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Granted: 1977-01-25
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Expires: 1995-04-18
Abstract
Abstract Recording media comprising a mixture of 4,4'-bis(3-diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonyloxy)benzil and an alkali soluble resin are suitable for recording information with electron beams. These recording media have high sensitivity, high resolving power and can be reproducibly formulated.
Inventors
- 👤 Daniel Louis Ross
- 👤 Lucian Anthony Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; Y; Y10; Y10S; Y10S430/00; Y10S430/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
In a method of recording information whereby a modulated beam of electrons is scanned across a surface of an electron beam sensitive material which becomes more soluble in a developer solvent when impinged upon by a beam of electrons and the electron beam sensitive material is developed with a developer solvent so as to remove the solubilized portion, the improvement which comprises employing as the electron beam sensitive material a mixture containing from about 1 to about 50% by weight of an active compound of the structure ##STR8##and an alkali-soluble resin.
Claim 2
Dependent Claim
91 words
In a method of recording information whereby a modulated beam of electrons is scanned across a surface of an electron beam sensitive material which becomes more soluble in a developer solvent when impinged upon by a beam of electrons and the electron beam sensitive material is developed with a developer solvent so as to remove the solubilized portion, the improvement which comprises employing as the electron beam sensitive material a mixture containing from about 1 to about 50% by weight of an active compound of the structure ##STR8##and an alkali-soluble resin.
Claim 3
Dependent Claim
27 words
A method according to claim 1 wherein the alkali-soluble resin is selected from the group consisting of novolaks, cellulose derivatives and homopolymers and copolyers of vinyl acetate.
Claim 4
Dependent Claim
14 words
A method according to claim 1 wherein the alkali-soluble resin is a novolak resin.
Claim 5
Dependent Claim
15 words
A method according to claim 1 wherein the alkali-soluble resin is a cresol-formaldehyde novolak resin.
Claim 6
Dependent Claim
20 words
A method according to claim 4 wherein the mixture contains from about 10 to 20% weight of the active compound.
References Cited (Backward Citations)
US3046110A
Cited
US3046118A
Cited
US3046119A
Cited
US2636022A
Cited
US2975053A
Cited
US3130048A
Cited
US3301698A
Cited
US3634086A
Cited
US3703400A
Cited
US3717461A
Cited
US3852771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |