US4336093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stacking metal sheet materials
Assignee: Fujifilm Holdings Corp
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Filing: 1980-08-14
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Granted: 1982-06-22
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Expires: 2000-08-14
Abstract
Abstract A method of stacking metal sheet materials which is characterized by interposing between each adjacent metal sheet material an interleaf comprising paper with plastic coated on only one side.
Inventors
- 👤 Ken Kohayakawa
- 👤 Hisao Ohba
- 👤 Atuhiro Sano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:02
CPC Classifications
G; G03; G03C; G03C3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
In a method for stacking and cutting photosensitive printing plate precursors which comprise a photosensitive layer on a metal support, said method comprising intimately contacting an interleaf with a photosensitive printing plate precursor by applying electric charges for establishing electric fields between the interleaf and the precursor, stacking a number of the resulting precursors intimately contacted with the interleaf in a manner so that the interleafs are between adjacent precursors, and then cutting the stacked precursors into a desired size, the improvement wherein said interleaf comprises paper with plastic coated on only one side of said paper and said interleaf is placed on the photosensitive printing plate precursor in such a manner that the photosensitive layer of said precursor is in intimate contact with the plastic coating of said interleaf.
Claim 2
Dependent Claim
130 words
In a method for stacking and cutting photosensitive printing plate precursors which comprise a photosensitive layer on a metal support, said method comprising intimately contacting an interleaf with a photosensitive printing plate precursor by applying electric charges for establishing electric fields between the interleaf and the precursor, stacking a number of the resulting precursors intimately contacted with the interleaf in a manner so that the interleafs are between adjacent precursors, and then cutting the stacked precursors into a desired size, the improvement wherein said interleaf comprises paper with plastic coated on only one side of said paper and said interleaf is placed on the photosensitive printing plate precursor in such a manner that the photosensitive layer of said precursor is in intimate contact with the plastic coating of said interleaf.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein said plastic is an α-olefin polymer.
Claim 4
Dependent Claim
17 words
The method of claim 2, wherein said polymer is a polyethylene, a polypropylene or an ethylene-butene copolymer.
Claim 5
Dependent Claim
13 words
The method of claim 2, wherein said polymer is a high density polyethylene.
Claim 6
Dependent Claim
16 words
The method of claim 4, wherein said polymer has a thickness of 5 to 20 microns.
Claim 7
Dependent Claim
23 words
The method of claim 1, wherein said plastic is coated on the paper in a thickness of about 2 to about 50 microns.
Claim 8
Dependent Claim
14 words
The method of claim 6, wherein the thickness is from 5 to 20 microns.
Claim 9
Dependent Claim
13 words
The method of claim 1, wherein said metal support is an aluminum support.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |