| 摘要 |
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 <IMAGE> +TR <IMAGE> wherein -X- is one of the groups <IMAGE> <IMAGE> -CkH2k-O- and -CrH2r-2-O- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and Z <IMAGE> and wherein R1, R2 and R3 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.
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