| abstract |
The invention describes radiation-sensitive compositions comprising at least onennovolak, at least one naphthoquinone diazide derivative and a copolymer; thencopolymer consisting of the units A, B and Cn nwherein unit A is present in an amount of 5 to a maximum of 50 mol% and R 1 andnR 4 are selected such that the homopolymer of A is alkali-soluble, nB is present in an amount of 20 to 70 mol% and R 2 , R 6 and R 7 are selected suchnthat the homopolymer of B has a high glass transition temperature, and C isnpresent in an amount of 10 to 50 mol% and R 3 and R 5 are selected such that thenhomopolymer of C is water-soluble and that unit A is different from unit C. nFurthermore, the invention describes printing plates produced therefrom. |