| 摘要 |
A photopolymerizable elastomeric mixture for producing ozone-resistant flexographic printing forms is disclosed which contains an elastomeric binder, an olefinically unsaturated compound polymerizable by free radicals, a photoinitiator, and a polyglycol ether of the general formula I R1-0-(A)1-(B)m-(C)n-R2 D (I) in which R1 and R2 are alkyl, especially (C1-C3)-alkyl, R3 is hydrogen or alkyl, especially (Cl C3)-alkyl, A, B, C can be identical or different and are and D oxa-n- or -iso-alkylene, especially oxa n- or -iso-(C1-C3-alkylene and l+m+n+o is 3 to 40. A recording material containing the photopolymerizable mixture as well as a process for producing A flexographic printing form are likewise described. The flexographic printing form obtained shows improved ozone resistance as compared with forms of the state of the art.
|
