Patent US2948611A successfully refreshed from Google Patents.
US2948611A
Expired / Lapsed
US
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Photopolymerizable compositions, elements, and processes
Assignee: EIDP Inc
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Filing: 1957-10-30
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Granted: 1960-08-09
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Expires: 1977-10-30
Abstract
No abstract record available.
Inventors
- 👤 Barney Arthur Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; C; C08; C08F; C08F283/00; C08F283/006; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/114; Y10S430/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A PHOTOPOLYMERIZABLE ELEMENT COMPRISING A SUPPORT AND A SOLID LAYER COMPRISING (1) 0.01% TO 10% BY WEIGHT OF A FREE RADICAL GENERATING ADDITION POLYMERIZATION INITIATOR ACTIVATABLE BY ACTINIC LIGHT AND INACTIVE THERMALLY BELOW 85*C., (2) 10% TO 60% BY WEIGHT OF A NORMALLY NON-GASEOUS ETHYLENICALLY UNSATURATED ADDITION POLYMERIZABLE COMPOUND CONTAINING A PLURALITY OF TERMINAL ETHYLENIC GROUPS HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM ABOUT 100 TO ABOUT 1500, THERE BEING AT LEAST ONE SUCH GROUP FOR EVERY 100-250 UNITS OF MOLECULAR WEIGHT, SAID COMPOUND HAVING A BOILING POINT OF OVER 100*C. AT NORMAL PRESSURE AND BEING CAPABLE OF FORMING A HIGH POLYMER BY PHOTOINITIATED ADDITION POLYMERIZATION IN THE PRESENCE OF SUCH AN INITIATOR, AND (3) THE BALANCE OF THE PERCENTAGE BY WEIGHT OF THE THREE COMPONENTS BEING A LINEAR POLYALKYLENEETHER-POLYURETHANE POLYMER ESSENTIALLY COMPOSED OF RECURRING STRUCTURAL UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
141 words
A PHOTOPOLYMERIZABLE ELEMENT COMPRISING A SUPPORT AND A SOLID LAYER COMPRISING (1) 0.01% TO 10% BY WEIGHT OF A FREE RADICAL GENERATING ADDITION POLYMERIZATION INITIATOR ACTIVATABLE BY ACTINIC LIGHT AND INACTIVE THERMALLY BELOW 85*C., (2) 10% TO 60% BY WEIGHT OF A NORMALLY NON-GASEOUS ETHYLENICALLY UNSATURATED ADDITION POLYMERIZABLE COMPOUND CONTAINING A PLURALITY OF TERMINAL ETHYLENIC GROUPS HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM ABOUT 100 TO ABOUT 1500, THERE BEING AT LEAST ONE SUCH GROUP FOR EVERY 100-250 UNITS OF MOLECULAR WEIGHT, SAID COMPOUND HAVING A BOILING POINT OF OVER 100*C. AT NORMAL PRESSURE AND BEING CAPABLE OF FORMING A HIGH POLYMER BY PHOTOINITIATED ADDITION POLYMERIZATION IN THE PRESENCE OF SUCH AN INITIATOR, AND (3) THE BALANCE OF THE PERCENTAGE BY WEIGHT OF THE THREE COMPONENTS BEING A LINEAR POLYALKYLENEETHER-POLYURETHANE POLYMER ESSENTIALLY COMPOSED OF RECURRING STRUCTURAL UNITS HAVING THE FORMULA
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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |