US3873316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a light-sensitive copying material having a copper-containing support, and copying material so produced
Assignee: Kalle GmbH and Co KG
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Filing: 1971-06-07
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Granted: 1975-03-25
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Expires: 1991-06-07
Abstract
Abstract This invention relates to a process for improving the adhesiveness of a negative-working copying layer to a coppercontaining support. The invention also relates to a presensitized negative-working copying material comprising a copper-containing support having a layer thereon of enhanced adhesiveness. In the process, the copper-containing support is coated with a layer containing tetramethylthiuram disulfide and/or one or more organic compounds having at least one mercapto group. A lightsensitive compound may be included in the same layer with the sulfur-containing compound.
Inventors
- 👤 Otto Velten
- 👤 Udo Moller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:47
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; G; G03; G03F; G03F7/00; G03F7/004; G03F7/085
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
69 words
A PRESENSITIZED NEGATIVE-WORKING COPYING MATERIAL COMPRISING A COPPER-CONTAINING SUPPORT AND A LAYER THEREON, SAID LAYER INCLUDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TETRAMETHYLTIURAM DISULFIDE AND A SULUR-CONTAINING ORGANIC COMPOUND HAVING AT LEAST ONE MERCAPTO GROUP, AND, SUPERPOSED ON IT OR COATED SIMULTANEOUSLY WITH IT, A LIGHTSENSTIVE COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIAZONIUM SALTS, DIAZO RESINS, AROMATIC AZIDO COMPOUNDS, NITRONE COMPOUNDS, PHTOPOLYMERIZABLE COMPOUNDS, AND BICHROMATE-CONTAINING COLLOIDSo
Claim 2
Dependent Claim
69 words
A PRESENSITIZED NEGATIVE-WORKING COPYING MATERIAL COMPRISING A COPPER-CONTAINING SUPPORT AND A LAYER THEREON, SAID LAYER INCLUDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TETRAMETHYLTIURAM DISULFIDE AND A SULUR-CONTAINING ORGANIC COMPOUND HAVING AT LEAST ONE MERCAPTO GROUP, AND, SUPERPOSED ON IT OR COATED SIMULTANEOUSLY WITH IT, A LIGHTSENSTIVE COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIAZONIUM SALTS, DIAZO RESINS, AROMATIC AZIDO COMPOUNDS, NITRONE COMPOUNDS, PHTOPOLYMERIZABLE COMPOUNDS, AND BICHROMATE-CONTAINING COLLOIDSo
Claim 3
Dependent Claim
21 words
A copying material according to claim 1 in which the sulfur-containing compound and the light-sensitive compound are in the same layer.
Claim 4
Dependent Claim
32 words
A copying material according to claim 1 in which the sulfur-containing compound and the light-sensitive compound are in separate layers, with the former compound being intermediate the support and the latter compound.
Claim 5
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 2-mercapto-benzothiazole.
Claim 6
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is N,N''-diphenylthiourea.
Claim 7
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 2-mercapto-benzimidazole.
Claim 8
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 2-mercapto-benzoxazole
Claim 9
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is thiourea.
Claim 10
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 5-mercapto-1-phenyl-1,2,3,4-tetrazole.
Claim 11
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 2-mercapto-1-methyl-imidazole.
Claim 12
Dependent Claim
14 words
A copying material according to claim 1 in which the sulfur-containing compound is 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione.
Claim 13
Dependent Claim
44 words
A process for improving the adhesiveness of a negative-working copying layer to a copper-containing support which comprises coating said support with a layer containing a compound selected from the group consisting of tetramethylthiuram disulfide and an organic compound having at least one mercapto group.
Claim 14
Dependent Claim
44 words
A process for improving the adhesiveness of a negative-working copying layer to a copper-containing support which comprises coating said support with a layer containing a compound selected from the group consisting of tetramethylthiuram disulfide and an organic compound having at least one mercapto group.
Claim 15
Dependent Claim
18 words
A process according to claim 12 in which a light-sensitive compound is coated over the sulfur compound-containing layer.
Claim 16
Dependent Claim
18 words
A process according to claim 12 in which a light-sensitive compound is contained in the sulfur compound-containing layer.
References Cited (Backward Citations)
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Cited
US2423520A
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US2520609A
Cited
US2980534A
Cited
US3123472A
Cited
US3453112A
Cited
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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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |