Patent US4238560A successfully refreshed from Google Patents.
US4238560A
Expired / Lapsed
US
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Photosensitive printing plate forming material having a novel matting layer composition
Assignee: Fujifilm Holdings Corp
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Filing: 1979-08-30
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Granted: 1980-12-09
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Expires: 1999-08-30
Abstract
Abstract A photosensitive printing plate forming material having on its surface a matting layer composed of a resin and a fine particulate material dispersed therein, said resin being at least one member selected from rosin and rosin esters.
Inventors
- 👤 Yasuo Nakamura
- 👤 Yoshio Okishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:31
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/115; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A photosensitive printing plate forming material comprising a support, a photosensitive layer, and, on the surface of said photosensitive layer a matting layer composed of a resin and a fine particulate material dispersed therein, said resin being at least one member selected from rosin and rosin esters.
Claim 2
Dependent Claim
47 words
A photosensitive printing plate forming material comprising a support, a photosensitive layer, and, on the surface of said photosensitive layer a matting layer composed of a resin and a fine particulate material dispersed therein, said resin being at least one member selected from rosin and rosin esters.
Claim 3
Dependent Claim
37 words
The photosensitive printing plate forming material of claim 1, wherein said rosin ester is methyl abietate, hydrogenated methyl abietate, diethylene glycol abietate, diethylene glycol 2-hydroabietate, a monoethylene glycol ester of rosin, or a pentaerythritol ester of rosin.
Claim 4
Dependent Claim
24 words
The photosensitive printing plate forming material of claim 2, wherein said rosin ester is hydrogenated methyl abietate or a monoethylene glycol ester of rosin.
Claim 5
Dependent Claim
28 words
The photosensitive printing plate forming material of claim 1, wherein said printing plate forming material additionally includes a resin layer intermediate said photosensitive layer and said matting layer.
Claim 6
Dependent Claim
18 words
The photosensitive printing plate forming material of claim 1, wherein the surface of said support is rendered hydrophilic.
Claim 7
Dependent Claim
33 words
The photosensitive printing plate forming material of claim 1, wherein said support is paper, polyolefin coated paper, a metal sheet, or a paper or plastic film laminated or vacuum deposited with a metal.
Claim 8
Dependent Claim
16 words
The photosensitive printing plate forming material of claim 6, wherein said support is an aluminum plate.
Claim 9
Dependent Claim
25 words
The photosensitive printing plate forming material of claim 1, wherein said photosensitive layer is a combination of (a) a photosensitive compound and (b) a binder.
Claim 10
Dependent Claim
17 words
The photosensitive printing plate forming material of claim 8, wherein said photosensitive layer contains a diazo compound.
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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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |