Patent US3879204A successfully refreshed from Google Patents.
US3879204A
Expired / Lapsed
US
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Two-layer photopolymerizable gravure resist film
Assignee: EIDP Inc
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Filing: 1973-05-09
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Granted: 1975-04-22
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Expires: 1993-05-09
Abstract
Abstract An element suitable for preparing an etching resist layer on an etchable surface comprises a smooth, flexible, removable support, bearing a hydrophilic macromolecular organic colloid layer containing a surfactant and optionally containing antihalation actinic radiation absorbing material, and compounds which comprise a photogenerated imaging system, and, coated on the hydrophilic colloid layer, a layer comprising a continuous phase of a hydrophilic, organic, macromolecular polymer dispersion medium (e.g., gelatin) and a dispersed phase including at least one addition polymerizable ethylenically unsaturated monomer (e.g., an acrylic or methacrylic acid polyester such as trimethylolpropane triacrylate) and a photoinitiator.
Inventors
- 👤 Joseph Edmund Gervay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/20; G03F7/00; G03F7/004; G03F7/09; G03F7/095; G03F7/0955
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
63 words
AN ELEMENT FOR FORMING A HETEROGENEOUS DIFFUSION ETCHED RESIST OF SUBSTANTIALLY UNIFORM THICKNESS COMPRISING A SMOOTH, FLEXIBLE, DRY STRIPPABLE SUPPORT BEARING, IN ORDER, A. A HYDROPHILIC MACROMOLECULAR ORGANIC COLLOID LAYER CONTAINING A SURFACTANT, AND HAVING A COATING WEIGHT OF AT LEAST ABOUT 1.0 MG./DM.2, AND B. A PHOTOPOLYMERIZABLE DIFFUSION RESIST LAYER COMPRISING A HYDROPHILIC MACROMOLECULAR POLYMER DISPERSION MEDIUM INCLUDING A DISPERSED PHASE CONTAINING
Claim 2
Dependent Claim
63 words
AN ELEMENT FOR FORMING A HETEROGENEOUS DIFFUSION ETCHED RESIST OF SUBSTANTIALLY UNIFORM THICKNESS COMPRISING A SMOOTH, FLEXIBLE, DRY STRIPPABLE SUPPORT BEARING, IN ORDER, A. A HYDROPHILIC MACROMOLECULAR ORGANIC COLLOID LAYER CONTAINING A SURFACTANT, AND HAVING A COATING WEIGHT OF AT LEAST ABOUT 1.0 MG./DM.2, AND B. A PHOTOPOLYMERIZABLE DIFFUSION RESIST LAYER COMPRISING A HYDROPHILIC MACROMOLECULAR POLYMER DISPERSION MEDIUM INCLUDING A DISPERSED PHASE CONTAINING
Claim 3
Dependent Claim
31 words
AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER HAVING A BOILING POINT ABOVE 100*C. AT NORMAL ATMOSPHERIC PRESSURE AND BEING CAPABLE OF FORMING A HIGH POLYMER BY FREE-RADICAL INITIATED, CHAIN-PROPAGATING ADDITION POLYMERIZATION; AND
Claim 4
Dependent Claim
31 words
AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER HAVING A BOILING POINT ABOVE 100*C. AT NORMAL ATMOSPHERIC PRESSURE AND BEING CAPABLE OF FORMING A HIGH POLYMER BY FREE-RADICAL INITIATED, CHAIN-PROPAGATING ADDITION POLYMERIZATION; AND
Claim 5
Dependent Claim
31 words
at least one ethylenically unsaturated monomer having a boiling point above 100*C. at normal atmospheric pressure and being capable of forming a high polymer by free-radical initiated, chain-propagating addition polymerization; and
Claim 6
Dependent Claim
31 words
at least one ethylenically unsaturated monomer having a boiling point above 100*C. at normal atmospheric pressure and being capable of forming a high polymer by free-radical initiated, chain-propagating addition polymerization; and
Claim 7
Dependent Claim
63 words
An element for forming a heterogeneous diffusion etched resist of substantially uniform thickness comprising a smooth, flexible, dry strippable support bearing, in order, a. a hydrophilic macromolecular organic colloid layer containing a surfactant, and having a coating weight of at least about 1.0 mg./dm.2, and b. a photopolymerizable diffusion resist layer comprising a hydrophilic macromolecular polymer dispersion medium including a dispersed phase containing
Claim 8
Dependent Claim
63 words
An element for forming a heterogeneous diffusion etched resist of substantially uniform thickness comprising a smooth, flexible, dry strippable support bearing, in order, a. a hydrophilic macromolecular organic colloid layer containing a surfactant, and having a coating weight of at least about 1.0 mg./dm.2, and b. a photopolymerizable diffusion resist layer comprising a hydrophilic macromolecular polymer dispersion medium including a dispersed phase containing
Claim 9
Dependent Claim
33 words
in reactive association with said monomer, at least one free-radical photoinitiating system activatable by actinic radiation in an amount constituting from 0.01 to 20.0% by weight oF the total solids in said dispersion.
Claim 10
Dependent Claim
33 words
in reactive association with said monomer, at least one free-radical photoinitiating system activatable by actinic radiation in an amount constituting from 0.01 to 20.0% by weight oF the total solids in said dispersion.
Claim 11
Dependent Claim
15 words
An element according to claim 1, wherein the support is a hydrophobic organic polymer film.
Claim 12
Dependent Claim
33 words
IN REACTIVE ASSOCIATION WITH SAID MONOMER, AT LEAST ONE FREE-RADICAL PHOTOINITIATING SYSTEM ACTIVATIBLE BY ACTINIC RADIATION IN AN AMOUNT CONSTITUTING FROM 0.01 TO 20.0% BY WEIGHT OF THE TOTAL SOLIDS IN SAID DISPERSION.
Claim 13
Dependent Claim
33 words
IN REACTIVE ASSOCIATION WITH SAID MONOMER, AT LEAST ONE FREE-RADICAL PHOTOINITIATING SYSTEM ACTIVATIBLE BY ACTINIC RADIATION IN AN AMOUNT CONSTITUTING FROM 0.01 TO 20.0% BY WEIGHT OF THE TOTAL SOLIDS IN SAID DISPERSION.
Claim 14
Dependent Claim
19 words
An element according to claim 1, wherein said support is a hydrophobic organic polymer film transparent to actinic radiation.
Claim 15
Dependent Claim
15 words
An element according to claim 1, wherein the support is a biaxially-oriented polyethylene terephthalate film.
Claim 16
Dependent Claim
21 words
An element according to claim 1, wherein the hydrophilic colloid layer has a coating weight of 1.0 mg/dm2 to 26 mg/dm2.
Claim 17
Dependent Claim
30 words
An element according to claim 1, wherein the hydrophilic colloid layer has a coating weight of 1.0 mg/dm2 to 26 mg/dm2 and contains a finely divided antihalation dye or pigment.
Claim 18
Dependent Claim
33 words
An element according to claim 1, wherein the hydrophilic colloid layer has a coating weight of 1.0 mg/dm2 to 26 mg/dm2 and the photopolymerizable layer has a thickness of 0.00005 - 0.001 inch.
Claim 19
Dependent Claim
17 words
An element according to claim 1, wherein layer (b) bears (c) a water-permeable organic colloid antiabrasion layer.
Claim 20
Dependent Claim
13 words
An element according to claim 1, wherein said unsaturated monomer is trimethylolpropane triacrylate.
Claim 21
Dependent Claim
13 words
An element according to claim 1, wherein the organic colloid layer comprises gelatin.
Claim 22
Dependent Claim
32 words
An element according to claim 1, wherein the organic colloid layer comprises gelatin, a leuco dye, and a 2,4,5-triarylimidazolyl dimer consisting of two lophine radicals bound together by a single covalent bond.
Claim 23
Dependent Claim
15 words
An element according to claim 1, wherein the organic colloid layer comprises gelatin and poly(vinylpyrrolidone).
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |