Claims
- 1. 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.sub.k H.sub.2k --O-- and --C.sub.r H.sub.2r-2 --O--
- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and
- Z is ##STR10## and wherein R.sub.1, R.sub.2, and R.sub.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.
- 2. A light-sensitive transfer material according to claim 1 including a peelable cover film on the surface of the layer remote from the support.
- 3. 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.
- 4. A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R.sub.1 is a methyl group.
- 5. A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, X is the group ##STR11##
- 6. A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R.sub.2 is a hydrogen atom.
- 7. A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, m=3 and R.sub.2 is a hydrogen atom.
- 8. A light-sensitive transfer material according to claim 1 in which in the compound corresponding to Formula I, R.sub.3 is a hydrogen atom and p=1.
- 9. 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.
- 10. 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.
- 11. 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.
- 12. 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.degree. C.
Parent Case Info
This is a division of application Ser. No. 41,741, filed May 23, 1979, now U.S. Pat. No. 4,250,248.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1441108 |
Jun 1976 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
41741 |
May 1979 |
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