Patent US3287152A successfully refreshed from Google Patents.
US3287152A
Expired / Lapsed
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Process for preparing a photopolymerizable element
Assignee: EIDP Inc
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Filing: 1964-08-17
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Granted: 1966-11-22
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Alles Francis Peter
- 👤 Smith Charles Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:47
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; C; C08; C08F; C08F2/00; C08F2/46; G03C; G03C1/00; G03C1/74; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/11; G03F7/16; G03F7/161; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/112; Y10S430/114; Y10S430/118; Y10S430/124; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR PREPARING A THIN, FLEXIBLE PHOTOPOLYMERIZABLE ELEMENT FOR USE IN PREPARING SHALLOW RELIEL, HIGH-PRECISION PRINTING PLATES WHICH COMPRISES: (1) COATING A SURFACE OF A THIN, FLEXIBLE SUPPORT LAYER WITH FROM ABOUT 0.0001 TO 0.0001 INCH OF A THERMALLY CURABLE COPOLYESTER ADHESIVE COMPOSITION; (2) DRYING AND PARTIALLY THERMAL CURING SAID ADHESIVE COMPOSITION AT ABOUT 100-150*C. FOR ABOUT 2 TO 20 MINUTES; (3) COATING THEREOVER A BARRIER LAYER FROM ABOUT 0.0005 TO 0.003 INCH IN THICKNESS OF PHOTOPOLYMETIZABLE COMPOSITION OF AN ADDITION POLYMERIZABLE, ETHYLENICALLY UNSATURATED COMPOUND AND AN ADDITION POLYMERIZATION INTIATOR ACTIVATABLE BY ACTINIC RADIATION; (4) PARTIALLY POLYMERIZING THE COMPOSITION OF STEP (3) BY EXPOSURE TO ACTINIC RADIATION; AND, (5) COATING THEREOVER A THIN LAYER OF A PHOTOPOLYMERIZABLE COMPOSITION OF AN ADDITION POLYMERIZABLE, ETHYLENICALLY UNSATURATED COMPOUND AND AN ADDITION POLYMERIZATION INITIATOR ACTIVATABLE BY ACTINIC RADIATION.
Claim 2
Dependent Claim
135 words
A PROCESS FOR PREPARING A THIN, FLEXIBLE PHOTOPOLYMERIZABLE ELEMENT FOR USE IN PREPARING SHALLOW RELIEL, HIGH-PRECISION PRINTING PLATES WHICH COMPRISES: (1) COATING A SURFACE OF A THIN, FLEXIBLE SUPPORT LAYER WITH FROM ABOUT 0.0001 TO 0.0001 INCH OF A THERMALLY CURABLE COPOLYESTER ADHESIVE COMPOSITION; (2) DRYING AND PARTIALLY THERMAL CURING SAID ADHESIVE COMPOSITION AT ABOUT 100-150*C. FOR ABOUT 2 TO 20 MINUTES; (3) COATING THEREOVER A BARRIER LAYER FROM ABOUT 0.0005 TO 0.003 INCH IN THICKNESS OF PHOTOPOLYMETIZABLE COMPOSITION OF AN ADDITION POLYMERIZABLE, ETHYLENICALLY UNSATURATED COMPOUND AND AN ADDITION POLYMERIZATION INTIATOR ACTIVATABLE BY ACTINIC RADIATION; (4) PARTIALLY POLYMERIZING THE COMPOSITION OF STEP (3) BY EXPOSURE TO ACTINIC RADIATION; AND, (5) COATING THEREOVER A THIN LAYER OF A PHOTOPOLYMERIZABLE COMPOSITION OF AN ADDITION POLYMERIZABLE, ETHYLENICALLY UNSATURATED COMPOUND AND AN ADDITION POLYMERIZATION INITIATOR ACTIVATABLE BY ACTINIC RADIATION.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |