US4636453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymer films containing microencapsulated sensitometric adjuvants
Assignee: EIDP Inc
•
Filing: 1985-10-01
•
Granted: 1987-01-13
•
Expires: 2005-10-01
Abstract
Abstract Photopolymerizable elements comprising a support, a layer of a photopolymerizable composition and a protective layer, the photopolymerizable layer having in reactive association therewith, e.g., dispersed therein or in contact with the surface, pressure rupturable microcapsules containing therein at least one active component for the photopolymerizable composition, e.g., ethylenically unsaturated compound, sensitizer, photoinitiator, oxygen scavenger, and plasticizer. Processes for the preparation of an activated photopolymerizable element and use are described wherein the microcapsules are ruptured, i.e., prior to imagewise exposure and development. The photopolymerizable elements are useful as color proofs, printing plates, etc.
Inventors
- 👤 Dalen E. Keys
- 👤 William J. Nebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:55
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/002; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0076; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
65 words
In a photopolymerizable element comprising a support bearing, in order, a layer of a photopolymerizable composition, and a protective layer, the improvement wherein dispersed in the photopolymerizable layer are pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition.
Claim 2
Dependent Claim
65 words
In a photopolymerizable element comprising a support bearing, in order, a layer of a photopolymerizable composition, and a protective layer, the improvement wherein dispersed in the photopolymerizable layer are pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition.
Claim 3
Dependent Claim
21 words
A photopolymerizable element according to claim 1 wherein the active component of the microcapsule is present in a water immiscible oil.
Claim 4
Dependent Claim
38 words
A photopolymerizable element according to claim 1 wherein the active component for the photopolymerizable composition is a compound taken from the group consisting essentially of a nongaseous ethylenically unsaturated compound, sensitizer, photoinitiator, oxygen scavenger, plasticizer, and combinations thereof.
Claim 5
Dependent Claim
72 words
In a photopolymerizable element comprising a support bearing, in order, a layer of a photopolymerizable composition, and a protective layer, the improvement wherein the photopolymerizable layer has in contact with a surface of the photopolymerizable layer pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition.
Claim 6
Dependent Claim
72 words
In a photopolymerizable element comprising a support bearing, in order, a layer of a photopolymerizable composition, and a protective layer, the improvement wherein the photopolymerizable layer has in contact with a surface of the photopolymerizable layer pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition.
Claim 7
Dependent Claim
21 words
A photopolymerizable element according to claim 4 wherein the active component of the microcapsule is present in a water immiscible oil.
Claim 8
Dependent Claim
37 words
A photopolymerizable element according to claim 1 wherein the photopolymerizable composition present as a layer on the support comprises: (1) a polymeric organic binder, (2) a nongaseous ethylenically unsaturated compound, and (3) a photoinitiator or photoinitiator system.
Claim 9
Dependent Claim
47 words
A photopolymerizable element according to claim 6 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (3) a photoinitiator or photoinitiator system, the ethylenically unsaturated compound (2), being contained within the pressure rupturable microcapsules in reactive association with the said layer.
Claim 10
Dependent Claim
47 words
A photopolymerizable element according to claim 6 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (2) an ethylenically unsaturated compound, the photoinitiator or photoinitiator system (3) being contained within the pressure rupturable microcapsules in reactive association with the said layer.
Claim 11
Dependent Claim
90 words
A process for the preparation of an activated photopolymerizable element which comprises: (a) applying to a support a layer of a photopolymerizable composition having dispersed therein pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition; (b) drying the photopolymerizable layer; (c) optionally applying a protective layer over the photopolymerizable layer; and (d) applying sufficient pressure to rupture substantially all the pressure rupturable microcapsules.
Claim 12
Dependent Claim
90 words
A process for the preparation of an activated photopolymerizable element which comprises: (a) applying to a support a layer of a photopolymerizable composition having dispersed therein pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition; (b) drying the photopolymerizable layer; (c) optionally applying a protective layer over the photopolymerizable layer; and (d) applying sufficient pressure to rupture substantially all the pressure rupturable microcapsules.
Claim 13
Dependent Claim
46 words
A process according to claim 9 wherein after step (d) the photopolymerizable element is (e) imagewise exposed to actinic radiation for the photopolymerizable layer, and (f) the unexposed areas are completely removed by development in a solvent for the photopolymerizable layer or toned with a pigment.
Claim 14
Dependent Claim
94 words
A process for the preparation of an activated photopolymerizable element which comprises (a) applying to a support a layer of a photopolymerizable composition, (b) drying the photopolymerizable layer; (c) applying a protective layer over the photopolymerizable layer, the photopolymerizable layer having in reactive association therewith pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition, and (d) applying sufficient pressure to rupture substantially all the pressure rupturable microcapsules.
Claim 15
Dependent Claim
94 words
A process for the preparation of an activated photopolymerizable element which comprises (a) applying to a support a layer of a photopolymerizable composition, (b) drying the photopolymerizable layer; (c) applying a protective layer over the photopolymerizable layer, the photopolymerizable layer having in reactive association therewith pressure rupturable microcapsules consisting essentially of outer walls resistant to solvent for the photopolymerizable layer surrounding at least one active component for the photopolymerizable composition which improves the speed and/or physical properties of the photopolymerizable composition, and (d) applying sufficient pressure to rupture substantially all the pressure rupturable microcapsules.
Claim 16
Dependent Claim
46 words
A process according to claim 11 wherein after step (d) the photopolymerizable element is (e) imagewise exposed to actinic radiation for the photopolymerizable layer, and (f) the unexposed areas are completely removed by development in a solvent for the photopolymerizable layer or otned with a pigment.
Claim 17
Dependent Claim
26 words
A process according to claim 11 wherein the pressure rupturable microcapsules are present on the support of the photopolymerizable element in contact with the photopolymerizable layer.
Claim 18
Dependent Claim
25 words
A process according to claim 11 wherein the pressure rupturable microcapsules are present on the surface of the photopolymerizable layer adjacent to the protective layer.
Claim 19
Dependent Claim
20 words
A process according to claim 11 wherein the active component of the microcapsule is present in a water immiscible oil.
Claim 20
Dependent Claim
37 words
A process according to claim 1 wherein the active component for the photopolymerizable composition is a compound taken from the group consisting essentially of a nongaseous ethylenically unsaturated compound, sensitizer, photoinitiator, oxygen scavenger, plasticizer and combinations thereof.
Claim 21
Dependent Claim
36 words
A process according to claim 11 wherein the photopolymerizable layer present as a layer on the support comprises: (1) a polymeric organic binder, (2) a nongaseous ehtylenically unsaturated compound, and (3) a photoinitiator or photoinitiator system.
Claim 22
Dependent Claim
46 words
A process according to claim 17 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (3) a photoinitiator or photoinitiator system, the ethylenically unsaturated compound (2) being contained within the pressure rupturable microcapsules in reactive association with the said layer.
Claim 23
Dependent Claim
46 words
A process according to claim 17 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (2) an ethylenically unsaturated compound, the photoinitiator or photoinitiator system (3) being contained within the pressure rupturable microcapsules in reactive association with the said layer.
Claim 24
Dependent Claim
38 words
A photopolymerizable element according to claim 4 wherein the active component for the photopolymerizable composition is a compound taken from the group consisting essentially of a nongaseous ethylenically unsaturated compound, sensitizer, photoinitiator, oxygen scavenger, plasticizer, and combinations thereof.
Claim 25
Dependent Claim
37 words
A photopolymerizable element according to claim 4 wherein the photopolymerizable composition present as a layer on the support comprises: (1) a polymeric organic binder, (2) a nongaseous ethylenically unsaturated compound, and (3) a photoinitiator or photoinitiator system.
Claim 26
Dependent Claim
47 words
A photopolymerizable element according to claim 21 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (3) a photoinitiator or photoinitiator system, the ethylenically unsaturated compound (2), being contained within the pressure rupturable microcapsules in reactive association with the said layer.
Claim 27
Dependent Claim
47 words
A photopolymerizable element according to claim 21 wherein the layer on the support comprises at least (1) a polymeric organic binder, and (2) an ethylenically unsaturated compound, the photoinitiator or photoinitiator system (3) being contained within the pressure rupturable microcapsules in reactive association with the said layer.
References Cited (Backward Citations)
US3219446A
Cited
US3700439A
Cited
US4501809A
Cited
GB2109331A
Cited
US4399209A
Cited
US4440846A
Cited
US4416966A
Cited
US4482624A
Cited
AU2533684A
Cited
EP0134300A1
Cited
US4532200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |