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US3923522A
Expired / Lapsed
US
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Photosensitive composition
Assignee: New Oji Paper Co Ltd
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Filing: 1973-07-18
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Granted: 1975-12-02
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Expires: 1993-07-18
Abstract
Abstract A highly photosensitive composition capable of being developed by an alkaline aqueous solution comprises an alkali-soluble phenolic resin selected from phenol novolak resins, m- and pcresol, p-tert.-butyl and cashew nut shell oil modified phenol novolak resins, and, if desired, an alkali-soluble vinyl polymer selected from copolymers of acrylic acid with acrylic esters, methacrylic acid with acrylic esters, maleic anhydride with styrene and maleic esters with styrene, and an azidopyrene compound of the formulae (I) or (II). wherein X1, X2, X3 and X4 each represent a hydrogen or halogen atom or nitro, monoalkylamino, acylalkylamino, dialkylamino, tosylamino, alkoxyl, hydroxyl, acyl, carboxyl, carboxymethyl or sulfonic acid radical.
Inventors
- 👤 Yukinori Hata
- 👤 Hidetoshi Komiya
- 👤 Yuzuru Osabe
- 👤 Tutomu Watanabe
- 👤 Hiroyoshi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:12
CPC Classifications
C; C07; C07C; C07C247/00; G; G03; G03F; G03F7/00; G03F7/004; G03F7/008; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/50; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/128
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
60 words
A PHOTOSENSITIVE COMPOSITION CAPABLE OF BEING PHOTOHARDENED AND INSOLUBILIZED IN ALKALINE AQUEOUS SOLUTIONS UPON PHOTOGRAPHIC EXPOSURE, SAID COMPOSITION COMPRISING AN ALKALISOLUBLE PHENOLIC RESIN AND 5 TO 30%, BASED ON THE WEIGHT OF SAID PHENOLIC RESIN, OF AT LEAST ONE PHOTOSENSITIVE COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAZIDOPYRENE COMPOUNDS OF THE FORMULA (I) AND DIAZIDOPYRENE COMPOUNDS OF THE FORMULA (II):
Claim 2
Dependent Claim
60 words
A PHOTOSENSITIVE COMPOSITION CAPABLE OF BEING PHOTOHARDENED AND INSOLUBILIZED IN ALKALINE AQUEOUS SOLUTIONS UPON PHOTOGRAPHIC EXPOSURE, SAID COMPOSITION COMPRISING AN ALKALISOLUBLE PHENOLIC RESIN AND 5 TO 30%, BASED ON THE WEIGHT OF SAID PHENOLIC RESIN, OF AT LEAST ONE PHOTOSENSITIVE COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAZIDOPYRENE COMPOUNDS OF THE FORMULA (I) AND DIAZIDOPYRENE COMPOUNDS OF THE FORMULA (II):
Claim 3
Dependent Claim
28 words
A photosensitive composition as claimed in claim 1, wherein said photosensitive compound is in an amount of 10 to 25% based on the weight of said phenolic resin.
Claim 4
Dependent Claim
19 words
A photosensitive composition as claimed in claim 1, wherein said halogen atom is selected from chlorine or bromine atom.
Claim 5
Dependent Claim
22 words
A photosensitive composition as claimeD in claim 1, wherein said monoalkylamino radical has an alkyl group having 1 to 4 carbon atoms.
Claim 6
Dependent Claim
32 words
A photosensitive composition as claimed in claim 1, wherein said acylalkylamino radical has an acyl group having 2 to 7 carbon atoms and an alkyl group having 1 to 4 carbon atoms.
Claim 7
Dependent Claim
27 words
A photosensitive composition as claimed in claim 1, wherein said dialkylamino radical has the same or different two alkyl groups each having 1 to 4 carbon atoms.
Claim 8
Dependent Claim
18 words
A photosensitive composition as claimed in claim 1, wherein said alkoxyl group has 1 to 4 carbon atoms.
Claim 9
Dependent Claim
18 words
A photosensitive composition as claimed in claim 1, wherein said acyl radical has 2 to 7 carbon atoms.
Claim 10
Dependent Claim
75 words
A photosensitive composition as claimed in claim 1, wherein said photosensitive monoazide compound is selected from the group consisting of 1-azidopyrene, 6-nitro-1-azidopyrene, 1-azido-6-acetylaminopyrene, 1-azido-8-acetylaminopyrene, 1-azido-6-chloropyrene, 1-azido-6-bromopyrene, 1-azido3,8-dihydroxypyrene, 1-azido-6-methoxypyrene, 1-azido-6-N-benzoylaminopyrene, 1-azido-6-N-benzoylaminopyrene, 1-azido6-N-ethylaminopyrene, 1-azidopyrene-3,8-disulfonic acid, 1-azidopyrene-6-carboxylic acid, 1-azido-6-N,N-dimethylaminopyrene, 1-azido-6-p -tosylaminopyrene, 1-azido-6- carboxymethylpyrene, 1-acetyl-6-azidopyrene, 1-propionyl-6-azidopyrene 1-n-butyrlyl-6-azidopyrene, 1-isobutylyl-6-azidopyrene, 1-n-valeryl-6-azidopyrene, 1-isovaleryl-6-azidopyrene, 1-sec.valeryl-6-azidopyrene, acetylazidopyrene sulfonic acid, acetylchloroazidopyrene, acetylbromoazidopyrene, acetylmethylazidopyrene, acetylmethoxyazidopyrene, acetylphenoxyazidopyrene, acetylnitroazidopyrene, acetylaminoazidopyrene, acetyl-N-methylaminoazidopyrene, acetyl-N,N-dimethylazidopyrene, acetylazidopyrene carboxylic acid, propionylazidopyrene sulfonic acid, propionylazidopyrene carboxylic acid, and ethyl ester of propionylazidopyrene carboxylic acid.
Claim 11
Dependent Claim
18 words
A photosensitive composition as claimed in claim 1, wherein said photosensitive diazide compound is 1,6-diazidopyrene, acetyl-diazidopyrene and propionyl-diazidopyrene.
Claim 12
Dependent Claim
37 words
A photosensitive composition as clamined in claim 1, wherein said phenolic resin is selected from the group consisting of alkali-soluble phenol novolak resins, modified phenol novolak resins and mixtures of two or more of the abovementioned resins.
Claim 13
Dependent Claim
31 words
A photosensitive composition as claimed in claim 11, wherein said phenol novolak resin is a condensation product of phenol with formaldehyde in a mole ratio of 1 : 0.7 to 0.9.
Claim 14
Dependent Claim
33 words
A photosensitive composition as clained in claim 11, wherein said modified phenol novolak resin is selected from the group consisting of m-cresol, p-cresol, p-tert.-butylphenol and cashew nut shell oil modified phenol novolak resins.
Claim 15
Dependent Claim
22 words
A photosensitive composition as claimed in claim 11, wherein said modified phenol novolak resin has a melting point of 108* to 113*C.
Claim 16
Dependent Claim
73 words
A photosensitive composition as claimed in claim 1, further comprising at most 100%, based on the weight of said phenolic resin, of an alkali-soluble vinyl polymer material selected from the group consisting of copolymers of acrylic acid with at least one acrylic ester, methacrylic acid with at least one acrylic ester, maleic anhydride with styrene, and at least one maleic ester with styrene, and mixtures of two or more of the above-mentioned copolymers.
Claim 17
Dependent Claim
35 words
A photosensitive composition as claimed in claim 15, wherein said copolymers of acrylic acid with acrylic ester are composed of copolymerized acrylic acid and acrylic ester in a ratio of 1 : 1 by mole.
Claim 18
Dependent Claim
35 words
A photosensitive composition as claimed in claim 15, wherein said copOlymers of methacrylic acid with acrylic ester are compound of copolymerized methacrylic acid and acrylic ester in a ratio of 1 : 1 by mole.
Claim 19
Dependent Claim
31 words
A photosensitive composition as clained in claim 15, wherein said copolymers of acrylic acid with acrylic ester and methacrylic acid with acrylic ester have a melting point of 121* to 135*C.
Claim 20
Dependent Claim
35 words
A photosensitive composition as claimed in claim 15, wherein said copolymers of maleic anhydride with styrene are composed of copolymerized maleic anhydride and styrene in a ratio of 1 - 2 : 1 by mole.
Claim 21
Dependent Claim
35 words
A photosensitive composition as claimed in claim 15, wherein said copolymers of maleic esters with styrene are composed of copolymerized maleic esters and styrene in a ratio of 1 - 2 : 1 by mole.
Claim 22
Dependent Claim
29 words
A photosensitive composition as claimed in claim 15, wherein said alkali-soluble vinyl polymer is in an amount of 20 to 35% based on the weight of said phenolic resin.
Claim 23
Dependent Claim
22 words
A photosensitive composition as claimed in claim 15, wherein said acrylic ester has an alkyl group of 1 to 2 carbon atoms.
Claim 24
Dependent Claim
24 words
A photosensitive composition as claimed in claim 15, wherein said maleic ester has one or two alkyl group of 1 to 2 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |