| 摘要 |
<p>The present invention relates to a flexible photopolymer printing plate composition comprising a homogenous blend of: (A) a high molecular weight butadiene-acrylonitrile copolymer having a number average molecular weight of about 30,000 to 125,000, an acrylonitrile content of 10 to 50% by weight, a carboxyl content of 2 to 15% by weight, and a Mooney viscosity (ML-4 at 100.degree.C) of 45 or higher; and (B) a medium molecular weight butadiene-acryloni-trile copolymer having a number average molecular weight of about 15,000 to 40,000, an acrylonitrile content of 10 to 40% by weight, a carboxyl content of 1-15%, and a Mooney viscosity (ML-4 at 100.degree.C) of from 15 to less than 45.</p> |
