US3765888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive compositions and a method for recording and directly developing a coloured image
Assignee: Panasonic Holdings Corp
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Filing: 1972-06-06
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Granted: 1973-10-16
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Expires: 1992-06-06
Abstract
Abstract A method and a photo-sensitive composition for recording and directly developing a coloured image, including a photo-sensitive material A, a solvent B in which the material A is soluble and a third material C which forms a charge-transfer complex with the solvent B when the solvent is liberated from the material A. When the photo-sensitive composition applied on a substrate is exposed to an actinic light such as an ultraviolet ray, a cross-linking or polymerization reaction takes place in the material A which consequently is insolubilized in the solvent B. Accordingly, the solvent B is liberated from the photo-sensitive material A and forms a charge-transfer complex with the material C to develop a colour.
Inventors
- 👤 R Sano
- 👤 S Yoshimura
- 👤 S Asakawa
- 👤 K Hasegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/124; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
A photo-sensitive composition as claimed in claim 1, wherein said photo-sensitive material is selected from the group consisting of para-azide benzoyl chloride polyvinyl alcohol ester, polyvinylazide, and polyvinyl alcohol cinnamate.
Claim 2
Dependent Claim
24 words
A photo-sensitive composition as claimed in claim 1, wherein said third material is selected from the group consisting of tetracyanoethylene, tetracyanoquinodimethane and 2,3-dichloro-5, 6-dicyano-p-benzoquinone.
Claim 3
Dependent Claim
38 words
A photo-senstive composition as claimed in claim 1, wherein said solvent is selected from the group consisting of xylene, ethylene glycol monomethyl ether, ethyl acetate, butyl acetate, dioxane and methyl ethyl ketone, and said third material is tetracyano-ethylene.
Claim 4
Dependent Claim
27 words
A photo-sensitive composition as claimed in claim 1, wherein said solvent is selected from the group consisting of xylene and cyclohexanone, and said third material is tetracyanoquinodimethane.
Claim 5
Dependent Claim
20 words
A photo-sensitive composition as claimed in claim 1, wherein said solvent is xylene and said third material is 2,3-dichloro-5, 6-dicyano-p-benzoquinone.
Claim 6
Independent Claim
111 words
A method for recording and directly developing a coloured image on a sheet coated with a photo-sensitive composition, which comprises the steps of: mixing a photo-sensitive material which is polymerizable or cross-linkable when exposed to an actinic light, a solvent in which said photo-sensitive material is soluble, said material becoming insoluble when said material is polymerized or cross-linked, and a third material which forms a charge-transfer complex with said solvent when said solvent is liberated from said photo-sensitive material polymerized or cross-linked; applying the resultant mixture onto a sheet; exposing said sheet through an image to an actinic light; and drying said sheet, whereby the coloured image appears on areas exposed.
References Cited (Backward Citations)
US3047388A
Cited
US3220834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |