| 摘要 |
<p>Photo-curable polymer composition comprising: (a) a first block copolymer comprising at least two blocks A of polymerised mono-vinyl aromatic monomer, at least one block B of polymerised conjugated diene monomer, and, optionally, a residue of a di-functional coupling agent, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 25 wt.% of the block copolymer, and wherein the residue, if present, is derived from a di-functional coupling agent containing alkoxy or epoxy functional groups; (b) 0 to 70 % by weight of a second block copolymer having one block A at least one block B and, optionally, a residue of a di- or multi-functional coupling agent, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 50 wt.% of the block copolymer (c) at least 5 % by weight of a low molecular weight block copolymer and (d) a photo-initiator. Flexographic printing plate precursor comprising a photo-curable layer sandwiched between two release films or a release film and a support. Cured polymer composition, obtainable by curing the photo-curable composition; flexographic printing plate containing the cured polymer composition, process for printing on a substrate with the flexographic printing plate.</p> |
