| abstract |
ABSTRACT OF THE DISCLOSURE Excellent quality photopolymer printing plates having hardness, flexibility, resilience, abrasion resistance and resistance to alcohol-based inks are provided herein, They are prepared from photopolymer compositions comprising a liquid polymer containing at least two terminal olefin groups attached to the polymer through a combination of at least two ether, thioether, ester, keto or amide groups, from 1 to 50% by weight based on the polymer of at least one ethylenically unsaturated monomer, from 0.1 to 10% by weight of a photoinitiator and 0.01 to 2% of a stabilizer. |