US3620733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive reproduction layer and process
Assignee: Kalle GmbH and Co KG
•
Filing: 1968-01-15
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Granted: 1971-11-16
•
Expires: 1988-01-15
Abstract
Abstract The present invention relates to a light-sensitive reproduction layer and a process for utilizing the layer, the layer comprising or consisting of a light-sensitive copolymer of at least one vinyl monomer, which by itself yields water-soluble polymers, with at least one light-sensitive monomer containing a ketone group.
Inventors
- 👤 Hartmut Steppan
- 👤 Gunter Messwarb
- 👤 Walter Luders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:17
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/038
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
36 words
A reproduction layer according to claim 1 in which the copolymer includes, by polymerization, a light-in-sensitive monomer which by itself forms water-insoluble polymers, but only in an effective amount such that a water developable layer results.
Claim 2
Dependent Claim
69 words
A reproduction layer according to claim 2 in which the copolymer includes, by polymerization, about 20 to 99 percent by weight of at least one vinyl monomer which by itself yields water-soluble polymers, about 1 to 40 percent by weight of at least one monomer of formulas I, II, III: and up to about 80 per cent by weight of the light-insensitive monomer which by itself forms water-insoluble polymers.
Claim 3
Dependent Claim
20 words
A reproduction layer according to claim 2 in which the copolymer is of N-vinyl-N-methyl acetamide, vinyl acetate, and 4-acrylamido benzopheone.
Claim 4
Dependent Claim
18 words
A reproduction layer according to claim 2 in which the copolymer is of dimethyl acrylamide, vinyl acetate, and
Claim 5
Dependent Claim
18 words
A reproduction layer according to claim 2 in which the copolymer is of dimethyl acrylamide, vinyl acetate and
Claim 6
Dependent Claim
20 words
A reproduction layer according to claim 2 in which the copolymer is of N,N-dimethyl acrylamide, vinyl acetate and 4-acrylamido benzophenone.
Claim 7
Dependent Claim
18 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide with 4-acrylamido benzophenone.
Claim 8
Dependent Claim
17 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide with 4-acryloxybenzophenone.
Claim 9
Dependent Claim
17 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide with 4-acrylamidoacetopenone.
Claim 10
Dependent Claim
16 words
A reproduction layer according to claim 1 in which the copolymer is of N-vinyl pyrrolidone and
Claim 11
Dependent Claim
17 words
A reproduction layer according to claim 1 in which the copolymer is of dimethyl acrylamide, acrylamide and
Claim 12
Dependent Claim
19 words
A reproduction layer according to claim 1 in which the copolymer is of N-tert.-butylacrylamide, N,N-dimethyl acrylamide, and 4-acrylamido benzophenone.
Claim 13
Dependent Claim
16 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 14
Dependent Claim
16 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 15
Dependent Claim
16 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 16
Dependent Claim
16 words
A reproduction layer according to claim 1 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 17
Dependent Claim
74 words
A process which comprises exposing a supporting light-sensitive reproduction layer to light under a master and developing the resulting image with a developer selected from the group consisting of water and an aqueous solution, the layer comprising a light-sensitive copolymer of an effective amount of at least one vinyl monomer which by itself yields water-soluble polymers, with an effective amount of at least one light-sensitive monomer of the following formulas I, II, and III:
Claim 18
Dependent Claim
34 words
A process according to claim 18 in which the copolymer includes by polymerization, a light-insensitive monomer which by itself forms water-insoluble polymers, but only in an effective amount such that a water-developable layer results.
Claim 19
Dependent Claim
19 words
A process according to claim 19 in which the copolymer is of N-vinyl-N-methyl acetamide, vinyl acetate, and 4-acrylamido benzophenone.
Claim 20
Dependent Claim
17 words
A process according to claim 19 in which the copolymer is of dimethyl acrylamide, vinyl acetate, and
Claim 21
Dependent Claim
17 words
A process according to claim 19 in which the copolymer is of dimethyl acrylamide, vinyl acetate and
Claim 22
Dependent Claim
19 words
A process according to claim 19 in which the copolymer is of N,N-dimethyl acrylamide, vinyl acetate and 4-acrylamido benzophenone.
Claim 23
Dependent Claim
67 words
A process according to claim 18 in which the copolymer includes, by polymerization, about 20 to 99 per cent by weight of at least one vinyl monomer which by itself yields water-soluble polymers, about 1to 40 percent by weight of at least one monomer of formulas I, II, and III, and 0 to 80 percent by weight of the light-insensitive monomer which by itself forms water-insoluble polymers.
Claim 24
Dependent Claim
17 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide with 4-acrylamido benzophenone.
Claim 25
Dependent Claim
16 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide with 4-acryloxybenzophenone.
Claim 26
Dependent Claim
17 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide with 4-acrylamido acetophenone.
Claim 27
Dependent Claim
15 words
A process according to claim 18 in which the copolymer is of N-vinyl pyrrolidone and
Claim 28
Dependent Claim
16 words
A process according to claim 18 in which the copolymer is of dimethyl acrylamide, acrylamide and
Claim 29
Dependent Claim
18 words
A process according to claim 18 in which the copolymer is of N-tert.-butylacrylamide, N,N-dimethyl acrylamide, and 4-acrylamido benzophenone.
Claim 30
Dependent Claim
15 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 31
Dependent Claim
15 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 32
Dependent Claim
15 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide and
Claim 33
Dependent Claim
15 words
A process according to claim 18 in which the copolymer is of N,N-dimethyl acrylamide and
References Cited (Backward Citations)
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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 |