US4388399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive image-forming material
Assignee: Fujifilm Holdings Corp
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Filing: 1982-02-10
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Granted: 1983-06-14
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Expires: 2002-02-10
Abstract
Abstract A light-sensitive image-forming material which comprises a support having provided thereon a first layer comprising at least one alcohol-soluble polyamide resin and, on said first layer, a second layer comprising a light-sensitive photoresist composition, said layer containing said alcohol-soluble polyamide resin containing one or more polymers having one or more of a free carboxy group(s), one or more of a phenolic hydroxy group(s) or a maleic anhydride group in a proportion of about 0.1:9.9 to 6:4 by weight to said polyamide resin.
Inventors
- 👤 Fumiaki Shinozaki
- 👤 Tomizo Namiki
- 👤 Tomoaki Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:27
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F1/56
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A light-sensitive image-forming material which comprises a support having provided thereon a first layer consisting essentially of at least one alcohol-soluble polyamide resin and, on said first layer, a second layer comprising a light-sensitive photoresist composition, said layer containing said alcohol-soluble polyamide resin and further consisting essentially of one or more polymers having one or more of a free carboxy group(s), one or more of a phenolic hydroxy group(s) or a maleic anhydride group in a proportion of about 0.1:9.9 to 6:4 by weight to said polyamide resin, wherein said light-sensitive layer and said alcohol-soluble polyamide resin layer are capable of being simultaneously developed and etched in an alkaline aqueous developer, whereby only either unexposed or exposed areas are selectively dissolved or swollen by the aqueous developing solution and removed.
Claim 2
Dependent Claim
130 words
A light-sensitive image-forming material which comprises a support having provided thereon a first layer consisting essentially of at least one alcohol-soluble polyamide resin and, on said first layer, a second layer comprising a light-sensitive photoresist composition, said layer containing said alcohol-soluble polyamide resin and further consisting essentially of one or more polymers having one or more of a free carboxy group(s), one or more of a phenolic hydroxy group(s) or a maleic anhydride group in a proportion of about 0.1:9.9 to 6:4 by weight to said polyamide resin, wherein said light-sensitive layer and said alcohol-soluble polyamide resin layer are capable of being simultaneously developed and etched in an alkaline aqueous developer, whereby only either unexposed or exposed areas are selectively dissolved or swollen by the aqueous developing solution and removed.
Claim 3
Dependent Claim
41 words
The light-sensitive image-forming material of claim 1, wherein said alcohol-soluble polyamide is selected from the group consisting of nylon 6/66/610 (terpolycondensate), ε-caprolactam/hexamethylenediamine/adipic acid/bis(4-aminocyclohexyl)-methane quaternary polycondensate, a polycondensate composed mainly of caprolactam, hexamethylenediamine/adipic acid and p,p'-diaminodicyclohexylmethane/adipic acid, N-methoxymethyl nylon and N-ethoxymethyl nylon.
Claim 4
Dependent Claim
29 words
The light-sensitive image-forming material of claim 1, wherein said alcohol-soluble polyamide resin is a nylon soluble in methanol at 25° C. in an amount greater than 0.1% by weight.
Claim 5
Dependent Claim
79 words
The light-sensitive image-forming material of claim 1, wherein said one or more polymers having one or more of a free carboxyl group(s), one or more of a phenolic hydroxy group(s) or a maleic anhydride group is selected from the group consisting of (meth)acrylic acid/alkyl(meth)acrylate copolymers, copolymers of (meth)acrylic acid and benzylmethacrylate wherein (meth)acrylic acid means acrylic acid or methacrylic acid, hydroxypropyl-methyl cellulose hexahydrophthalate, hydroxymethyl-methyl cellulose phthalate, halogenated polhydroxy styrene, styrene/maleic anhydride copolymers, (meth)acrylic acid/styrene copolymers and (meth)acrylic acid/hydroxyalkyl(meth)acrylate copolymers.
Claim 6
Dependent Claim
35 words
The light-sensitive image-forming material of claim 4, wherein said one or more polymers are incorporated in the alcohol-soluble polyamide resin layer in a proportion of about 0.1:9.9 to 7:3 by weight to the alcohol-soluble polyamide.
Claim 7
Dependent Claim
19 words
The light-sensitive image-forming material of claim 1, wherein said alkaline aqueous developer has a pH of 10 to 14.
References Cited (Backward Citations)
DE2831101A1
Cited
US4232105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |