US3620732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of water-insoluble reproduction layers and for their subsequent image-wise differentiation
Assignee: Kalle GmbH and Co KG
•
Filing: 1968-01-15
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Granted: 1971-11-16
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Expires: 1988-01-15
Abstract
Abstract This invention relates to a process for the preparation of water-insoluble reproduction layers and also a process for the use of such layers. In the process of preparation, a suitable support is coated with an aqueous dispersion of a waterinsoluble, inherently light-sensitive polymer, and the coated dispersion is solidified into a film, with simultaneous removal of the water. In the process for using the film, the latter is imagewise exposed to light and then imagewise differentiated by means of a developing process.
Inventors
- 👤 Hartmut Steppan
- 👤 Karl Josef Rauterkus
- 👤 Detlev Seip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:07
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 2
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 3
Dependent Claim
15 words
A process according to claim 1 in which the light sensitive monomer has the formula
Claim 4
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 5
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 6
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 7
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 8
Dependent Claim
14 words
A process according to claim 1 in which the light-sensitive monomer has the formula
Claim 9
Dependent Claim
17 words
A process according to claim 1 in which the dispersion includes a photoactive emulsifier of the formula
Claim 10
Dependent Claim
71 words
A supported light-sensitive reproduction layer comprising a water-insoluble copolymer of an effective amount of at least one light-insensitive vinyl or vinylidene monomer selected from the group consisting of a vinyl ester, an acryl ester, a vinyl ether, a vinyl halide, a vinylidene halide, acrylonitrile, styrene, acrylic acid, vinyl sulfonic acid, and itaconic acid, an effective amount of at least one light-sensitive monomer of the following general formulae I, II, and III:
Claim 11
Dependent Claim
92 words
A process which comprises exposing a supported light-sensitive reproduction layer to light under a master and developing the resulting image with an organic solvent, the layer comprising a water-insoluble copolymer of an effective amount of at least one light-insensitive vinyl or vinylidene monomer selected from the group consisting of a vinyl ester, an acryl ester, a vinyl ether, a vinyl halide, a vinylidene halide, acrylonitrile, styrene, acrylic acid, vinyl sulfonic acid, and itaconic acid, an effective amount of at least one light-sensitive monomer of the following general formulas I, II, and III,
Claim 12
Dependent Claim
66 words
A supported light-sensitive reproduction layer comprising a water-insoluble copolymer of an effective amount of at least one light-insensitive vinyl or vinylidene monomer selected from the group consisting of a vinyl ester, an acryl ester, a vinyl ether, a vinyl halide, a vinylidene halide, acrylonitrile, styrene, acrylic acid, vinyl sulfonic acid, and itaconic acid, and an effective amount of at least one of the following light-sensitive monomers:
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |