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US4115128A
Expired / Lapsed
US
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Positive image forming radiation sensitive compositions containing diazide compound and organic cyclic anhydride
Assignee: Fujifilm Holdings Corp
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Filing: 1976-12-17
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Granted: 1978-09-19
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Expires: 1996-12-17
Abstract
Abstract A radiation-sensitive composition capable of producing a positive image upon exposure to actinic radiation and subsequent treatment with a basic solution which comprises (a) an o-naphthoquinone diazide compound, (b) an alkali soluble film-forming phenolic resin and (c) an organic acid cyclic anhydride.
Inventors
- 👤 Nobuyuki Kita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:39
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/0226
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A radiation-sensitive composition capable of producing a positive image upon exposure to actinic radiation and subsequent treatment with a basic solution which consists essentially of, by weight based on weight of the total composition, (a) 10 to 50 weight percent of an o-naphthoquinone diazide compound, (b) 45 to 79 weight percent of an alkali soluble film-forming phenolic resin and (c) 1 to 15 weight percent of an organic acid cyclic anhydride represented by the following formulae (II) or (III) ##STR3## wherein R 1 and R 2 each represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, or an unsubstituted or substituted aryl group, and R 1 and R 2 may combine together to form a cyclic ring.
Claim 2
Dependent Claim
121 words
A radiation-sensitive composition capable of producing a positive image upon exposure to actinic radiation and subsequent treatment with a basic solution which consists essentially of, by weight based on weight of the total composition, (a) 10 to 50 weight percent of an o-naphthoquinone diazide compound, (b) 45 to 79 weight percent of an alkali soluble film-forming phenolic resin and (c) 1 to 15 weight percent of an organic acid cyclic anhydride represented by the following formulae (II) or (III) ##STR3## wherein R 1 and R 2 each represents a hydrogen atom, a halogen atom, an unsubstituted or substituted alkyl group, or an unsubstituted or substituted aryl group, and R 1 and R 2 may combine together to form a cyclic ring.
Claim 3
Dependent Claim
23 words
The composition of claim 1, wherein said o-naphthoquinone diazide compound is an ester of a halide of naphthoquinone(1,2)-diazide-(2)-sulfonic acid and a phenolic compound.
Claim 4
Dependent Claim
32 words
The composition of claim 1, wherein said o-naphthoquinone diazide compound is an ester of a halide of naphthoquinone-(1,2)-diazide-(2)-sulfonic acid and a pyrogallol-acetone condensation resin, a phenolformaldehyde novolac resin or a poly(hydroxy styrene).
Claim 5
Dependent Claim
32 words
The composition of claim 1, wherein said phenolic resin is a phenol/formaldehyde novolac resin, a cresol/formaldehyde novaolac resin, a p-tert-butyl phenol/formaldehyde novolac resin, a phenolmodified xylene/formaldehyde resin, a poly(hydroxystyrene) or a poly(bromohydroxystyrene).
Claim 6
Dependent Claim
45 words
The composition of claim 1, wherein said organic acid cyclic anhydride is phthalic acid anhydride, tetrachlorophthalic acid anhydride, tetrahydrophthalic acid anhydride, hexahydrophthalic acid anhydride, 3,6-endoxy-Δ 4 -tetrahydrophthalic acid anhydride, maleic acid anhydride, α-chloromaleic acid anhydride, α-phenylmaleic acid anhydride, succinic acid anhydride or pyromellitic acid anhydride.
Claim 7
Dependent Claim
27 words
The composition of claim 1 wherein said cyclic ring is a cycloalkyl group, a halo (cycloalkyl) group, a cycloalkylene group, an aryl group, or a heterocyclic group.
References Cited (Backward Citations)
FR1492442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |