US4434223A
Expired / Lapsed
US
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Image-forming element having an aluminum layer on a transparent film base
Assignee: Okamoto Chemical Industry Co Ltd
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Filing: 1982-12-27
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Granted: 1984-02-28
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Expires: 2002-12-27
Abstract
Abstract An image-forming element comprises a transparent base film, an aluminum film deposited on the base film, and a photosensitive layer formed on the aluminum film and which can be developed with an alkali aqueous solution developer. The photosensitive layer comprises of (a) 20 to 60% by weight of a copolymer of a vinyl toluene and a monoester of an unsaturated dibasic acid, (b) 10 to 70% by weight of an addition-polymerizable, ethylenically unsaturated monomer which is an acrylate or a methacrylate of a fatty polyhydroxy alcohol having at least two terminal ethylene groups and at least one hydroxyl groups, and (c) 0.5 to 30% by weight of a photopolymerization initiator.
Inventors
- 👤 Takeo Kohira
- 👤 Takao Taguchi
- 👤 Takeo Sugiura
- 👤 Takatoshi Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:54
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F1/50; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/111
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
113 words
An image-forming element which comprises a transparent base film, an aluminum film deposited on the base film, and a photosensitive layer formed on the aluminum film and which can be developed with an alkali aqueous solution developer, characterized in that the photosensitive layer comprises (a) 20 to 60% by weight of a copolymer of a vinyl toluene and a monoester of an unsaturated dibasic acid, (b) 10 to 70% by weight of an addition-polymerizable, ethylenically unsaturated monomer which is an acrylate or a methacrylate of a fatty polyhydroxy alcohol having at least two terminal ethylene groups and at least one hydroxyl groups, and (c) 0.5 to 30% by weight of a photopolymerization initiator.
Claim 2
Dependent Claim
113 words
An image-forming element which comprises a transparent base film, an aluminum film deposited on the base film, and a photosensitive layer formed on the aluminum film and which can be developed with an alkali aqueous solution developer, characterized in that the photosensitive layer comprises (a) 20 to 60% by weight of a copolymer of a vinyl toluene and a monoester of an unsaturated dibasic acid, (b) 10 to 70% by weight of an addition-polymerizable, ethylenically unsaturated monomer which is an acrylate or a methacrylate of a fatty polyhydroxy alcohol having at least two terminal ethylene groups and at least one hydroxyl groups, and (c) 0.5 to 30% by weight of a photopolymerization initiator.
Claim 3
Dependent Claim
51 words
An image-forming element according to claim 1, wherein the copolymer is contained in an amount of 30 to 55% by weight, the ethylenically unsaturated monomer is contained in an amount of 35 to 65% by weight, and the photopolymerization initiator is contained in an amount of 5 to 20% by weight.
Claim 4
Dependent Claim
20 words
An image-forming element according to claim 1, wherein a protective layer is formed on a surface of the photosensitive layer.
Claim 5
Dependent Claim
22 words
An image-forming element according to claim 3, wherein the protective layer comprises one of a cover sheet and an aqueous resin layer.
Claim 6
Dependent Claim
21 words
An image-forming element according to claim 4, wherein the cover sheet consists of one of a polyester, polyamide, polypropylene and polyester.
Claim 7
Dependent Claim
24 words
An image-forming element according to claim 4, wherein the aqueous resin film consists of one of a polyvinyl alcohol, polyacrylamide and a polyvinyl pyrrolidone.
Claim 8
Dependent Claim
37 words
An image-forming element according to claim 1, wherein the photosensitive layer further consists of at least one member selected from the group consisting of a dye, a pigment, a heat polymerization inhibitor, and a chain transfer agent.
Claim 9
Dependent Claim
30 words
An image-forming element according to claim 1, wherein the unsaturated dibasic acid is at least one member selected from the group consisting of maleic acid, fumaric acid, and itaconic acid.
Claim 10
Dependent Claim
51 words
An image-forming element according to claim 1, wherein the monoester is a member selected from the group consisting of monoalkyl esters having a carbon number of 1 to 10, and esters of a monoalkyl ether having a carbon number of 1 to 10 of one of ethylene glycol and propylene glycol.
Claim 11
Dependent Claim
29 words
An image-forming element according to claim 1, wherein the monoester of the unsaturated dibasic acid is a member selected from the group consisting of monobutyl maleate and monobutyl itaconate.
Claim 12
Dependent Claim
31 words
An image-forming element according to claim 1, wherein the copolymer consists of 40 to 60 mol% of the vinyl toluene and 40 to 60 mol% of the unsaturated dibasic acid monoester.
Claim 13
Dependent Claim
18 words
An image-forming element according to claim 1, wherein the copolymer has an acid value of 50 to 300.
Claim 14
Dependent Claim
18 words
An image-forming element according to claim 1, wherein the copolymer has a molecular weight of 1,000 to 1,000,000.
Claim 15
Dependent Claim
42 words
An image-forming element according to claim 1, wherein the ethylenically unsaturated monomer is one of an acrylate and a methacrylate of a member selected from the group consisting of trimethylol propane, pentaerythritol, dipentaerythritol and an ethylene or propylene oxide addition product thereof.
Claim 16
Dependent Claim
15 words
An image-forming element according to claim 14, wherein the ethylenically unsaturated monomer is pentaerythritol triacrylate.
Claim 17
Dependent Claim
42 words
An image-forming element according to claim 1, wherein the base film has a thickness of 50 to 150 μm, the aluminum layer has a thickness of 500 to 2,000 Å, and the photosensitive layer has a thickness of 0.2 to 20 μm.
References Cited (Backward Citations)
US4242438A
Cited
US4131518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |