Patent US4387151A successfully refreshed from Google Patents.
US4387151A
Expired / Lapsed
US
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Light-curable mixture and light-sensitive copying material made therewith
Assignee: Hoechst AG
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Filing: 1981-09-22
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Granted: 1983-06-07
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Expires: 2001-09-22
Abstract
Abstract Disclosed is a light-curable mixture, comprising a light-sensitive compound comprising a diazonium salt polycondensation product or an organic azido compound; and a binder comprising a polymer at least swellable in an aqueous-alkaline solution and which comprises alkenylsulfonylurethane or cycloalkenylsulfonylurethane side groups. Also disclosed are light-sensitive copying materials prepared with the mixtures.
Inventors
- 👤 Dieter Bosse
- 👤 Werner Frass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/021; G03F7/0212; G03F7/008; G03F7/012; G03F7/0125; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/11
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
39 words
A light-curable mixture, comprising: a light-sensitive compound comprising a diazonium salt polycondensation product or an organic azido compound; and a binder comprising a polymer at least swellable in an aqueous-alkaline solution and which comprises alkenylsulfonylurethane or cycloalkenylsulfonylurethane side groups.
Claim 2
Dependent Claim
39 words
A light-curable mixture, comprising: a light-sensitive compound comprising a diazonium salt polycondensation product or an organic azido compound; and a binder comprising a polymer at least swellable in an aqueous-alkaline solution and which comprises alkenylsulfonylurethane or cycloalkenylsulfonylurethane side groups.
Claim 3
Dependent Claim
29 words
A light-curable mixture as claimed in claim 1, wherein said polymer comprises a reaction product of a polymer containing free hydroxyl groups with an alkenylsulfonyl isocyanate or cycloalkenylsulfonyl isocyanate.
Claim 4
Dependent Claim
52 words
A light-curable mixture as claimed in claim 2, wherein said polymer containing free hydroxyl groups comprises a partially hydrolyzed polyvinyl ester, a polyvinyl acetal having unconverted vinyl alcohol units, an epoxide resin, a partial ester or ether of cellulose, or a terpolymer comprising units of vinyl chloride, vinyl acetate and vinyl alcohol.
Claim 5
Dependent Claim
27 words
A light-curable mixture as claimed in claim 3, wherein said polymer containing free hydroxyl groups comprises a polyvinyl butyral or polyvinyl formal, having unconverted vinyl alcohol units.
Claim 6
Dependent Claim
74 words
A light-curable mixture as claimed in claim 1, wherein said diazonium salt polycondensation product comprises recurring A--N 2 X and B units which are linked by intermediate members which are derived from carbonyl compounds capable of condensation, wherein A comprises the radical of an aromatic diazonium compound which is capable of condensation with formaldehyde, and B comprises the radical of a compound which is free from diazonium groups and capable of condensation with formaldehyde.
Claim 7
Dependent Claim
33 words
A light-curable mixture as claimed in claim 5, wherein B comprises the radical of an aromatic amine, a phenol, phenol ether, aromatic thioether, aromatic hydrocarbon, aromatic heterocyclic compound or an organic acid amide.
Claim 8
Dependent Claim
15 words
A light-curable mixture as claimed in claim 5, wherein said intermediate members comprise methylene groups.
Claim 9
Dependent Claim
21 words
A light-curable mixture as claimed in claim 1, wherein said alkenyl or cycloalkenyl group contains between 2 and 12 carbon atoms.
Claim 10
Dependent Claim
30 words
A light-curable mixture as claimed in claim 8, wherein said alkenyl group contains between 2 and 4 carbon atoms and said cycloalkenyl group contains between 5 and 8 carbon atoms.
Claim 11
Dependent Claim
27 words
A light-sensitive copying material suitable for the preparation of printing plates, comprising: a support; and a light-curable layer comprising a light-curable mixture as defined by claim 1.
References Cited (Backward Citations)
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US3732106A
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US3732105A
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US4289838A
Cited
US4186017A
Cited
US4301234A
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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) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |