Photopolymerizable elastomeric mixture and recording...

Details Photopolymerizable elastomeric mixture and recording... Photopolymerizable elastomeric mixture and recording...

G - Physics

03

F

96/150

G03F 7/038 (2006.01) G03F 7/032 (2006.01)

Patent

CA 2005209

Abstract of the Disclosure 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.

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