US4361640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous developable photopolymer compositions containing terpolymer binder
Assignee: EIDP Inc
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Filing: 1981-10-02
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Granted: 1982-11-30
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Expires: 2001-10-02
Abstract
Abstract Compatible, aqueous developable photopolymerizable composition consisting essentially of (a) 22 to 32% by wt. of a monomeric compound having at least two terminal ethylenic groups, (b) 0.1 to 5.0% by wt of a photoinitiator or initiator system, (c) 40 to 80% by wt of a binder system which is the reaction product of (1) 65 to 87 parts by wt of a terpolymer of methylmethacrylate, butylmethacrylate and methacrylic acid as defined, (2) 5 to 20 parts by wt of a polyamide resin and (3) 5 to 20 parts by wt of a copolymer of vinyl pyrrolidone and vinyl acetate, (d) 0.03 to 0.10% by wt of a thermal polymerization inhibitor, and optionally up to 18% by wt of a plasticizer and up to 2.0% by wt of a tertiary amine capable of salt formation with a carboxylic acid. Aqueous developable photopolymerizable elements comprise a support bearing a layer of the composition. Relief printing plates can be prepared by imagewise exposing and developing the elements.
Inventors
- 👤 Herbert J. Pine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/109; Y10S430/111
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
197 words
A compatible, aqueous developable photopolymerizable composition consisting essentially of (a) 22 to 32% by weight of an ethylenically unsaturated monomeric compound having at least two terminal ethylenic groups capable of forming a high polymer by free-radical initiated chain-propagated addition polymerization; (b) 0.1 to 5.0% by weight of a free radical generating, addition polymerization initiator or initiator system activatable by actinic radiation; (c) 40 to 80% by weight of a binder system which is the reaction product of (1) 65 to 87 parts by weight of a terpolymer of methylmethacrylate, butylmethacrylate, and methacrylic acid, the terpolymer having an acid number of 175 to 200 and an inherent viscosity of about 0.4 to 0.5, (2) 5 to 20 parts by weight of amine-terminated polyamide resin, and (3) 5 to 20 parts by weight of a copolymer of vinyl pyrrolidone and vinyl acetate; (d) 0.03 to 0.10% by weight of a thermal polymerization inhibitor; (e) 0 to 18% by weight of a plasticizer for the composition; and (f) 0 to 2% by weight of a tertiary amine capable of salt formation with a carboxylic acid, the percentages of the composition components being based on the total weight of the composition.
Claim 2
Dependent Claim
197 words
A compatible, aqueous developable photopolymerizable composition consisting essentially of (a) 22 to 32% by weight of an ethylenically unsaturated monomeric compound having at least two terminal ethylenic groups capable of forming a high polymer by free-radical initiated chain-propagated addition polymerization; (b) 0.1 to 5.0% by weight of a free radical generating, addition polymerization initiator or initiator system activatable by actinic radiation; (c) 40 to 80% by weight of a binder system which is the reaction product of (1) 65 to 87 parts by weight of a terpolymer of methylmethacrylate, butylmethacrylate, and methacrylic acid, the terpolymer having an acid number of 175 to 200 and an inherent viscosity of about 0.4 to 0.5, (2) 5 to 20 parts by weight of amine-terminated polyamide resin, and (3) 5 to 20 parts by weight of a copolymer of vinyl pyrrolidone and vinyl acetate; (d) 0.03 to 0.10% by weight of a thermal polymerization inhibitor; (e) 0 to 18% by weight of a plasticizer for the composition; and (f) 0 to 2% by weight of a tertiary amine capable of salt formation with a carboxylic acid, the percentages of the composition components being based on the total weight of the composition.
Claim 3
Dependent Claim
15 words
A photopolymerizable composition according to claim 1 wherein the monomeric compound is tetraethylene glycol diacrylate.
Claim 4
Dependent Claim
17 words
A photopolymerizable composition according to claim 1 or claim 2 wherein the initiator is an acetophenone compound.
Claim 5
Dependent Claim
91 words
A photopolymerizable composition according to claim 1 wherein binder system (C) is the reaction product of (1) terpolymer of methylmethacrylate (27 to 31%)/, butyl methacrylate (40 to 45%)/and methacrylic acid (26 to 32%); (2) amine-terminated polyamide resin 6 (81.3%)/66 (0.7%)/610 (18.0%) having a melting point of 145° to 150° C. or an amine-terminated polyamide resin 6 (5 to 10%)/66 (20 to 30%)/12 (60 to 70%) having a melting point of 120° to 130° C.; and (3) a copolymer of vinyl pyrrolidone (60%) and vinyl acetate (40%), all percentages being weight percentages.
Claim 6
Dependent Claim
14 words
A photopolymerizable composition according to claim 1 wherein the thermal polymerization inhibitor is 1,4,4-trimethyl-2,5-diazobicyclo[3.2.2]-non-2-ene-N,N'-dioxide.
Claim 7
Dependent Claim
12 words
A photopolymerizable composition according to claim 1 wherein a plasticizer is present.
Claim 8
Dependent Claim
13 words
A photopolymerizable composition according to claim 6 wherein the plasticizer is triphenyl phosphate.
Claim 9
Dependent Claim
21 words
A photopolymerizable composition according to claim 1 wherein a tertiary amine capable of salt formation with a carboxylic acid is present.
Claim 10
Dependent Claim
13 words
A photopolymerizable composition according to claim 8 wherein the tertiary amine is diethylcyclohexylamine.
Claim 11
Dependent Claim
28 words
A photopolymerizable element which comprises a support bearing a layer, 0.0005 to 0.250 inch (0.00127 to 0.635 cm) in thickness of the photopolymerizable composition according to claim 1.
Claim 12
Dependent Claim
21 words
A photopolymerizable element according to claim 10 wherein between the support and photopolymerizable layer is a layer of an adhesive composition.
Claim 13
Dependent Claim
14 words
A photopolymerizable element according to claim 10 wherein the support is a metal sheet.
Claim 14
Dependent Claim
29 words
A photopolymerizable element which comprises a support bearing an extruded layer 0.010 to 0.25 inch (0.254 to 6.35 mm) in thickness of the photopolymerizable composition according to claim 1.
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) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |