US4266004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoimageable material of polymeric material having organic sulfide and photo-oxidation sensitizer
Assignee: Monsanto Co
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Filing: 1978-07-26
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Granted: 1981-05-05
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Expires: 1998-07-26
Abstract
Abstract The present invention relates to a photoimaging process whereby a polymeric film containing sulfide functionality is selectively exposed to incident radiation in the presence of oxygen and a photosensitizer so that the sulfur functionality is photooxidized to produce a latent image which may then be developed. Polymeric films containing photooxidizable organic sulfide functionality and preferably additional carbon-carbon double bond unsaturation, which are capable of being used in the foregoing process are also included within the scope of the present invention.
Inventors
- 👤 Roland J. Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:25
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/733; G03F7/027; G03F7/0275; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/116; Y10S430/122
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
70 words
A photoimageable polymeric element comprising a body of polymeric material containing organic sulfide functionality and a photooxidation sensitizer, said sensitizer and said sulfide functionally being present in an amount sufficient so that upon exposure to irradiation in the presence of oxygen a developable latent image is produced in said polymeric material, said exposure being of an intensity insufficient to produce a latent image in the absence of said sulfide functionality.
Claim 2
Dependent Claim
70 words
A photoimageable polymeric element comprising a body of polymeric material containing organic sulfide functionality and a photooxidation sensitizer, said sensitizer and said sulfide functionally being present in an amount sufficient so that upon exposure to irradiation in the presence of oxygen a developable latent image is produced in said polymeric material, said exposure being of an intensity insufficient to produce a latent image in the absence of said sulfide functionality.
Claim 3
Dependent Claim
15 words
The element of claim 1 wherein said body of polymeric material further contains ##STR8## unsaturation.
Claim 4
Dependent Claim
29 words
The element of claim 1 wherein said body of polymeric material is produced by polymerizing monomeric material in the presence of a thiol or disulfide and a cross-linking agent.
Claim 5
Dependent Claim
21 words
The element of claim 3 wherein said body of polymeric material contains discrete, cross-linked particle form polymer produced by emulsion polymerization.
Claim 6
Dependent Claim
15 words
The element of claim 4 wherein said body of polymeric material further contains ##STR9## unsaturation.
Claim 7
Dependent Claim
26 words
The element of claim 1 wherein said body of polymeric material comprises a preformed polymer having said sulfide functionality introduced into said polymer at reactive sites.
Claim 8
Dependent Claim
13 words
The element of claim 6 wherein said reactive sites comprise unsaturated ##STR10## sites.
Claim 9
Dependent Claim
11 words
The element of claim 6 wherein said preformed polymer is cross-linked.
Claim 10
Dependent Claim
24 words
The element of claim 1 wherein said body of polymeric material is the polymerization or copolymerization product of at least one sulfide containing monomer.
Claim 11
Dependent Claim
22 words
The element of claim 9 wherein said sulfide containing monomer is selected from the group consisting of vinyl sulfides and ethylthioethyl methacrylates.
Claim 12
Dependent Claim
24 words
The element of claim 1 wherein said body of polymeric material comprises a polymer with --S-- or --S--S-- units in the main polymer chain.
Claim 13
Dependent Claim
14 words
The element of claim 11 wherein said body of polymeric material comprises polyethylene sulfide.
Claim 14
Dependent Claim
14 words
The element of claim 11 wherein said body of polymeric material comprises polypropylene sulfide.
Claim 15
Dependent Claim
13 words
The element of claim 11 wherein said body of polymeric material comprises polysulfides.
Claim 16
Dependent Claim
14 words
The element of claim 1 wherein said body of polymeric material contains a polyolefin.
Claim 17
Dependent Claim
13 words
The element of claim 15 wherein said body of polymeric material contains polyethylene.
Claim 18
Dependent Claim
13 words
The element of claim 15 wherein said body of polymeric material contains polypropylene.
Claim 19
Dependent Claim
14 words
The element of claim 1 wherein said body of polymeric material contains a polydiolefin.
Claim 20
Dependent Claim
14 words
The element of claim 18 wherein said body of polymeric material contains a polybutadiene.
Claim 21
Dependent Claim
21 words
The element of claim 1 wherein said body of polymeric material contains a polymer of an alpha, betaunsaturated carboxylic acid ester.
Claim 22
Dependent Claim
15 words
The element of claim 20 wherein said body of polymeric material contains a polyacrylate polymer.
Claim 23
Dependent Claim
15 words
The element of claim 20 wherein said body of polymeric material contains a polymethacrylate polymer.
Claim 24
Dependent Claim
16 words
The element of claim 1 wherein said body of polymeric material contains a polyvinyl aromatic polymer.
Claim 25
Dependent Claim
14 words
The element of claim 23 wherein said body of polymeric material contains a polystyrene.
Claim 26
Dependent Claim
15 words
The element of claim 1 wherein said body of polymeric material contains a polyvinylidene polymer.
Claim 27
Dependent Claim
15 words
The element of claim 1 wherein said body of polymeric material contains a condensation polymer.
Claim 28
Dependent Claim
15 words
The element of claim 26 wherein said body of polymeric material contains a phenol-formaldehyde polymer.
Claim 29
Dependent Claim
15 words
The element of claim 1 wherein said body of polymeric material contains a polyamide polymer.
Claim 30
Dependent Claim
11 words
The element of claim 28 wherein said polyamide polymer is nylon.
Claim 31
Dependent Claim
48 words
The element of claim 1 which upon selective exposure to irradiation in the presence of oxygen and a photooxidation sensitizer is characterized by a relative difference in one or more physical or chemical properties in the exposed and unexposed regions such that said latent image may be developed.
Claim 32
Dependent Claim
16 words
The element of claim 30 wherein said difference is in relative solubility in a developing solvent.
Claim 33
Dependent Claim
17 words
The element of claim 30 wherein said difference is in relative dye receptivity to a developing dye.
Claim 34
Dependent Claim
18 words
The element of claim 30 wherein said difference is in relative adhesiveness or tack to a given substrate.
Claim 35
Dependent Claim
17 words
The element of claim 1 wherein a photooxidation sensitizer is incorporated into said body of polymeric material.
Claim 36
Dependent Claim
12 words
The element of claim 34 wherein said photooxidation sensitizer is a porphin.
Claim 37
Dependent Claim
10 words
The element of claim 35 wherein said porphin is tetraphenylporphin.
Claim 38
Dependent Claim
12 words
The element of claim 34 wherein said photooxidation sensitizer is dinaphthylene thiophene.
Claim 39
Dependent Claim
12 words
The element of claim 34 wherein said photooxidation sensitizer is rose bengal.
Claim 40
Dependent Claim
19 words
The element of claim 1 wherein said body of polymeric material is in the form of a thin film.
Claim 41
Dependent Claim
13 words
The element of claim 39 further comprising a support for said thin film.
Claim 42
Dependent Claim
31 words
The element of claim 40 wherein said support is a second thin film or layer to which said thin film of said body of polymeric material is temporarily or permanently bonded.
References Cited (Backward Citations)
US3145104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |