US4296196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable mixture in a transfer element
Assignee: Hoechst AG
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Filing: 1980-06-27
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Granted: 1981-10-20
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Expires: 2000-06-27
Abstract
Abstract This invention relates to a light-sensitive transfer material, comprising a flexible temporary support and a thermoplastic photopolymerizable layer which layer comprises a polymeric, thermoplastic binder which is soluble or at least swellable in aqueous-alkaline solutions, a polyurethane with two terminal acrylic acid or methacrylic acid ester groups which is capable of addition polymerization, and a photoinitiator, the polyurethane corresponding to Formula I ##STR1## wherein --X-- is one of the groups ##STR2## --C k H 2k --O-- and --C r H 2r-2 --O-- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and Z ##STR3## and wherein R 1 , R 2 and R 3 are hydrogen atoms or methyl groups, n is a whole number from 2 to 15, m is a whole number from 2 to 4, p is a whole number from 1 to 4, k is a whole number from 2 to 12, and r is a whole number from 4 to 12.
Inventors
- 👤 Raimund J. Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:46
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672; C08G18/675; C08G18/70; C08G18/72; C08G18/73; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
159 words
A light-sensitive transfer material, comprising a flexible temporary support and a thermoplastic photopolymerizable layer which layer comprises a polymeric, thermoplastic binder which is soluble or at least swellable in aqueous-alkaline solutions, a polyurethane with two terminal acrylic acid or methacrylic acid ester groups which is capable of addition polymerization, and a photoinitiator, said polyurethane corresponding to Formula I ##STR8## wherein --X-- is one of the groups ##STR9## --C k H 2k --O-- and --C r H 2r-2 --O-- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and Z is ##STR10## and wherein R 1 , R 2 , and R 3 are hydrogen atoms or methyl groups, n is a whole number from 2 to 15, m is a whole number from 2 to 4, p is a whole number from 1 to 4, k is a whole number from 2 to 12, and r is a whole number from 4 to 12.
Claim 2
Dependent Claim
159 words
A light-sensitive transfer material, comprising a flexible temporary support and a thermoplastic photopolymerizable layer which layer comprises a polymeric, thermoplastic binder which is soluble or at least swellable in aqueous-alkaline solutions, a polyurethane with two terminal acrylic acid or methacrylic acid ester groups which is capable of addition polymerization, and a photoinitiator, said polyurethane corresponding to Formula I ##STR8## wherein --X-- is one of the groups ##STR9## --C k H 2k --O-- and --C r H 2r-2 --O-- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and Z is ##STR10## and wherein R 1 , R 2 , and R 3 are hydrogen atoms or methyl groups, n is a whole number from 2 to 15, m is a whole number from 2 to 4, p is a whole number from 1 to 4, k is a whole number from 2 to 12, and r is a whole number from 4 to 12.
Claim 3
Dependent Claim
23 words
A light-sensitive transfer material according to claim 1 including a peelable cover film on the surface of the layer remote from the support.
Claim 4
Dependent Claim
26 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, n is a whole number from 2 to 11.
Claim 5
Dependent Claim
23 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R 1 is a methyl group.
Claim 6
Dependent Claim
22 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, X is the group ##STR11##
Claim 7
Dependent Claim
23 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R 2 is a hydrogen atom.
Claim 8
Dependent Claim
25 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, m=3 and R 2 is a hydrogen atom.
Claim 9
Dependent Claim
25 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R 3 is a hydrogen atom and p=1.
Claim 10
Dependent Claim
30 words
A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, Y is a saturated aliphatic group with at least one lateral methyl group.
Claim 11
Dependent Claim
28 words
A light-sensitive transfer material according to claim 1 which contains from 10 to 60 percent by weight, calculated on its non-volatile components, of compounds corresponding to Formula I.
Claim 12
Dependent Claim
28 words
A light-sensitive transfer material according to claim 1 in which the binder is an acrylic acid or methacrylic acid copolymer with an acid number between 50 and 250.
Claim 13
Dependent Claim
58 words
A light-sensitive transfer material according to claim 1 in which the copolymer is a terpolymer obtained from methacrylic acid, an alkyl methacrylate with 4 to 15 carbon atoms in the alkyl group, and a further monomer which can be copolymerized with the first two components and whose homopolymer has a glass transition temperature of at least 80° C.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |