Patent US3262780A successfully refreshed from Google Patents.
US3262780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of photopolymerized printing elements
Assignee: EIDP Inc
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Filing: 1962-04-27
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Granted: 1966-07-26
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Glen A Thommes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:15
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/40; G03F7/405; C; C08; C08F; C08F2/00; C08F2/46; G03F7/004; G03F7/027; G03F7/032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR IMPROVING THE SURFACE CHARACTERISTICS OF A POLYMERIC RELIEF WHICH COMPRISES TREATING THE SURFACE OF A PRINTING RELIEF COMPRISING: (A) A SOLID ADDITION POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING AT LEAST ONE TERMINAL ETHYLENIC GROUP, AND (B) A PREFORMED SOLID ORGANIC POLYMER BINDING AGENT HAVING A MOLECULAR WEIGHT ABOVE 10,000 AND CONTAINING RECURRING EXTRALINEAR SOLUBILIZING GROUPS SELECTED FROM THE CLASS CONSISTING OF FREE CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND THEIR CORRESPONDING ALKALI METAL, AMMONIUM AND AMINE SALTS, WITH AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE WATERSOLUBLE SALT OF A POLYVALENT METAL SOLUBLE TO THE EXTENT OF AT LAST 10 GRAMS PER LITER OF WATER AND CAPABLE OF SALT FORMATION OR COMPLEX FORMATION WITH THE SOLUBILIZING GROUPS OF SAID POLYMER BINDING AGENT AND FOR A PERIOD OF AT LEAST 15 SECONDS.
Claim 2
Dependent Claim
134 words
A PROCESS FOR IMPROVING THE SURFACE CHARACTERISTICS OF A POLYMERIC RELIEF WHICH COMPRISES TREATING THE SURFACE OF A PRINTING RELIEF COMPRISING: (A) A SOLID ADDITION POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING AT LEAST ONE TERMINAL ETHYLENIC GROUP, AND (B) A PREFORMED SOLID ORGANIC POLYMER BINDING AGENT HAVING A MOLECULAR WEIGHT ABOVE 10,000 AND CONTAINING RECURRING EXTRALINEAR SOLUBILIZING GROUPS SELECTED FROM THE CLASS CONSISTING OF FREE CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND THEIR CORRESPONDING ALKALI METAL, AMMONIUM AND AMINE SALTS, WITH AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE WATERSOLUBLE SALT OF A POLYVALENT METAL SOLUBLE TO THE EXTENT OF AT LAST 10 GRAMS PER LITER OF WATER AND CAPABLE OF SALT FORMATION OR COMPLEX FORMATION WITH THE SOLUBILIZING GROUPS OF SAID POLYMER BINDING AGENT AND FOR A PERIOD OF AT LEAST 15 SECONDS.
References Cited (Backward Citations)
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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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |