US4647475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making multilayer light sensitive electron radiation cured coating
Assignee: Fujifilm Holdings Corp
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Filing: 1985-06-17
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Granted: 1987-03-03
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Expires: 2005-06-17
Abstract
Abstract A method for making multilayer coating on a support, which comprises simultaneously applying multiple layers of at least two nonaqueous coating liquids on the support, at least one of the liquids containing an electron radiation curable compound, irradiating the applied layers with electron rays at a rate of 50 Mrad/sec. or less to cure them or to increase the viscosity thereof, and then drying. This method can be applied to the production of presensitized plates, multilayer photographic materials, multilayer analytical elements, etc.
Inventors
- 👤 Yuzo Inukai
- 👤 Yasuhito Naruse
- 👤 Takao Nakayama
- 👤 Nobuyoshi Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:27
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/16; G03F7/004; G03F7/09; G03F7/095
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
A method for making a multilayer device including at least one light-sensitive material layer, which comprises simultaneously applying multiple layers of at least two nonaqueous coating liquids on a continuously traveling flexible support, at least one of said nonaqueous coating liquids containing an electron radiation curable compound and at least one of said nonaqueous coating liquids containing a light-sensitive material, irradiating the layers applied on the support with electron rays at a rate of 50 Mrad/sec. or less to cure the applied layers or to increase the viscosity thereof, to prevent diffusion between the layers, and then drying the applied layers.
Claim 2
Independent Claim
101 words
A method for making a multilayer device including at least one light-sensitive material layer, which comprises simultaneously applying multiple layers of at least two nonaqueous coating liquids on a continuously traveling flexible support, at least one of said nonaqueous coating liquids containing an electron radiation curable compound and at least one of said nonaqueous coating liquids containing a light-sensitive material, irradiating the layers applied on the support with electron rays at a rate of 50 Mrad/sec. or less to cure the applied layers or to increase the viscosity thereof, to prevent diffusion between the layers, and then drying the applied layers.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein the time between the simultaneous applying of the multiple layers of the coating liquids and the irradiation thereof is not more than two seconds.
Claim 4
Dependent Claim
22 words
The method of claim 1, wherein at least one of said nonaqueous coating liquids has a viscosity of 50 cps or more.
Claim 5
Dependent Claim
22 words
The method of claim 1, wherein said light-sensitive composition is one for use in making a light-sensitive layer of a presensitized plate.
Claim 6
Dependent Claim
18 words
The method of claim 1, wherein said flexible support is a continuous aluminum sheet having a hydrophilic surface.
Claim 7
Dependent Claim
34 words
The method of claim 1, wherein said electron radiation curable compound is selected from the group consisting of compounds having one or more vinyl, vinylidene, epoxy, acryloyl, methacryloyl, acrylamide, allyl, vinylether or vinylthioether groups.
Claim 8
Dependent Claim
29 words
The method of claim 1, wherein said electron rays are irradiated under an accelerating voltage of 150 to 300 kV at an absorbed dose of 0.08 to 7 Mrad.
Claim 9
Dependent Claim
36 words
The method of claim 1, wherein said light-sensitive composition comprises at least one compound selected from the group consisting diazo resins, o-quinonediazides, light-sensitive azides and polymers having --CH═CH--CO-- group in a main or side chain 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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |