Patent US3833384A successfully refreshed from Google Patents.
US3833384A
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Photopolymerizable compositions and elements and uses thereof
Assignee: Eastman Kodak Co
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Filing: 1973-04-06
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Granted: 1974-09-03
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Expires: 1993-04-06
Abstract
Abstract Novel photopolymerizable compositions comprise an ethylenically unsaturated monomer which is a bisacryloyl derivative of p- or mhydroxy or amino benzoic acid, a film-forming carboxylated polymeric binder and a photoactivatable polymerization initiator. These compositions are easily developed with alkaline solutions and can be used to prepare resists, printing plates, and other photomechanical images. Terpolymer binders of methyl methacrylate, ethyl acrylate and methacrylic acid present in proportions of from 40 to 65 percent, 20 to 45 percent and 10 to 25 percent, respectively, on a mole basis, have been found to produce resist compositions of exceptionally clean developing characteristics which are substantially free of microresidues.
Inventors
- 👤 J Noonan
- 👤 R Sutton
- 👤 Conkey R Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:58
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C; C08; C08F; C08F265/00; C08F265/02; C08F291/00; C08F291/18; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/111; Y10S430/114; Y10S430/118
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
41 words
A composition of claim 1 wherein the film-forming binder is a polymer of 30 to 94 mole percent of one or more alkyl acrylates and 70 to 6 mole percent of one or more Alpha , Beta -ethylenically unsaturated carboxylic acids.
Claim 2
Dependent Claim
18 words
A composition of claim 1 wherein the ethylenically unsaturated monomer is a bismethacrylate of a p-hydroxy benzoic acid.
Claim 3
Dependent Claim
13 words
A composition of claim 1 wherein the ethylenically unsaturated monomer has the structure
Claim 4
Dependent Claim
13 words
A composition of claim 4 where the ethylenically unsaturated monomer is 2-hydroxy-3-methacryloyloxypropyl 4-methacryloyloxybenzoate.
Claim 5
Dependent Claim
13 words
A composition of claim 4 where the ethylenically unsaturated monomer is 2-hydroxy-3-methacryloyloxypropyl p-(2-hydroxy-3-methacryloyloxypropoxyl)benzoate.
Claim 6
Dependent Claim
37 words
A composition of claim 4 where the polymeric binder is a polymer of 61 to 94 mole percent of two alkyl acrylates and 39 to 6 mole percent of an Alpha , Beta -ethylenically unsaturated carboxylic acid.
Claim 7
Dependent Claim
18 words
A composition of claim 1 wherein the photoactivatable polymerization initiator is a mixture of benzophenone and Michler''s ketone.
Claim 8
Dependent Claim
21 words
A composition according to claim 1 wherein the film-forming binder is a terpolymer of methyl methacrylate, ethyl acrylate and methacrylic acid.
Claim 9
Dependent Claim
26 words
A photopolymerizable composition comprising a solution in an organic solvent of a. 1 to 40 percent by weight of an ethylenically unsAturated monomer having the structure
Claim 10
Dependent Claim
34 words
A photopolymerizable composition comprising a solution in an organic solvent capable of producing coatings having clean developing characteristics comprising a. 2.5 to 30 percent by weight of an ethylenically unsaturated monomer having the structure
Claim 11
Dependent Claim
43 words
An element comprising a support and a layer of a photopolymerizable composition comprising a. an ethylenically unsaturated monomer which is a bisacrylate of a p- or m-hydroxy or amino benzoic acid, b. a film-forming carboxylated polymeric binder, and c. a photoactivatable polymerization initiator.
Claim 12
Dependent Claim
40 words
An element according to claim 12 in which the film-forming binder is a polymer of 30 to 94 mole percent of one or more alkyl acrylates and 70 to 6 mole percent of one or more ethylenically unsaturated carboxylic acids.
Claim 13
Dependent Claim
15 words
An element according to claim 12 in which the ethylenically unsaturated monomer has the structure
Claim 14
Dependent Claim
32 words
An element comprising a support and a layer of a photopolymerizable composition having clean development characteristics comprising a. 16 to 60 percent by weight of an ethylenically unsaturated monomer having the structure
Claim 15
Dependent Claim
18 words
An element according to claim 15 in which said support presents a metal surface adjacent said photopolymerizable layer.
Claim 16
Dependent Claim
18 words
An element according to claim 15 in which said support presents a copper surface adjacent said photopolymerizable layer.
References Cited (Backward Citations)
US3017383A
Cited
US3632493A
Cited
US3607292A
Cited
US3661576A
Cited
US3730951A
Cited
US3748133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |