US4409314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive compounds, light-sensitive mixture, and light-sensitive copying material prepared therefrom
Assignee: Hoechst AG
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Filing: 1981-10-20
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Granted: 1983-10-11
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Expires: 2001-10-20
Abstract
Abstract A light-sensitive mixture is described which contains a water-insoluble resinous binder, which is soluble or swellable in aqueous-alkaline solutions, and a novel 1,2-naphthoquinone-2-diazide-sulfonic acid ester of a dihydroxyacylophenone or of a dihydroxybenzoic acid ester of the formula I <IMAGE> in which R1 is an alkyl or alkoxy radical, the carbon chain of which can be interrupted by ether oxygen atoms, R2 is a hydrogen atom, an alkyl radical having 1-3 carbon atoms, or a chlorine or bromine atom and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical. The copying materials prepared from this mixture are particularly suitable for the preparation of printing plates which give long print runs and have a high light sensitivity. The compounds of the formula I are distinguished by good solubility in customary coating solvents.
Inventors
- 👤 Gerhard Buhr
- 👤 Hans Ruckert
- 👤 Paul Stahlhofen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
105 words
A light-sensitive mixture which contains a water-insoluble resinous binder, which is soluble or swellable in aqueous-alkaline solutions, and a 1,2-naphthoquinone-2-diazide-sulfonic acid ester of a dihydroxyacylophenone or of a dihydroxybenzoic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR4## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms, or a chlorine or bromine atom, and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 2
Dependent Claim
105 words
A light-sensitive mixture which contains a water-insoluble resinous binder, which is soluble or swellable in aqueous-alkaline solutions, and a 1,2-naphthoquinone-2-diazide-sulfonic acid ester of a dihydroxyacylophenone or of a dihydroxybenzoic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR4## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms, or a chlorine or bromine atom, and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 3
Dependent Claim
28 words
A light-sensitive mixture as claimed in claim 1 which contains a compound of the formula I in which R 1 is an alkyl radical having 4-17 carbon atoms.
Claim 4
Dependent Claim
13 words
A light-sensitive mixture as claimed in claim 1 which contains 2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl)phenyl n-butyl ketone.
Claim 5
Dependent Claim
14 words
A light-sensitive mixture as claimed in claim 1 which contains 2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl hept-3-yl ketone.
Claim 6
Dependent Claim
14 words
A light-sensitive mixture as claimed in claim 1 which contains 2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl 2,4,4-trimethyl-pentyl ketone.
Claim 7
Dependent Claim
15 words
A light-sensitive mixture as claimed in claim 1 wherein the binder is a phenolic resin.
Claim 8
Dependent Claim
27 words
A light-sensitive mixture as claimed in claim 1 which contains about 3-50 percent by weight, based upon its non-volatile constituents, of the compound of the formula I.
Claim 9
Dependent Claim
32 words
A light-sensitive mixture as claimed in claim 1 which contains a compound of the formula I, in which R 2 is a hydrogen atom and D is a 1,2-naphthoquinone-2-diazide-4- or -5-sulfonyl radical.
Claim 10
Dependent Claim
105 words
A light-sensitive copying material, composed of a support and a light-sensitive layer which contains a water-insoluble resinous binder, which is soluble or swellable in aqueous-alkaline solutions, and a 1,2-naphthoquinone-2-diazide-sulfonic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR5## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms, or a chlorine or bromine atom and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 11
Dependent Claim
105 words
A light-sensitive copying material, composed of a support and a light-sensitive layer which contains a water-insoluble resinous binder, which is soluble or swellable in aqueous-alkaline solutions, and a 1,2-naphthoquinone-2-diazide-sulfonic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR5## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms, or a chlorine or bromine atom and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 12
Dependent Claim
85 words
A 1,2-naphthoquinone-2-diazide-sulfonic acid ester of a dihydroxyacylophenone or of a dihydroxybenzoic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR6## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1-3 carbon atoms, or a chlorine or bromine atom and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 13
Dependent Claim
85 words
A 1,2-naphthoquinone-2-diazide-sulfonic acid ester of a dihydroxyacylophenone or of a dihydroxybenzoic acid ester, wherein the sulfonic acid ester corresponds to the formula I ##STR6## in which R 1 is an alkyl radical having 4 to 17 carbon atoms or an alkoxy radical having 4 to 17 carbon atoms, the carbon chain of which can be interrupted by ether oxygen atoms, R 2 is a hydrogen atom, an alkyl radical having 1-3 carbon atoms, or a chlorine or bromine atom and D is a 1,2-naphthoquinone-2-diazide-sulfonyl radical.
Claim 14
Dependent Claim
19 words
A compound as claimed in claim 10 in which R 1 is an alkyl radical having 4-17 carbon atoms.
Claim 15
Dependent Claim
23 words
A compound as claimed in claim 10 in which R 2 is a hydrogen atom and D is a 1,2-naphthoquinone-2-diazide-4- or -5-sulfonyl radical.
Claim 16
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl n-butyl ketone.
Claim 17
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl n-butyl ketone.
Claim 18
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl hept-3-yl ketone.
Claim 19
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl hept-3-yl ketone.
Claim 20
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl 2,4,4-trimethyl-pentyl ketone.
Claim 21
Dependent Claim
4 words
2,4-bis-(1,2-naphthoquinone-2-diazide-5-sulfonyl) phenyl 2,4,4-trimethyl-pentyl ketone.
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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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |