(ETHYLENE, VINYL ACETAL) COPOLYMERS AND THEIR USE IN LITHOGRAPHIC PRINTING PLATE PRECURSORS
申请人:AGFA GRAPHICS NV
公开号:US20170088652A1
公开(公告)日:2017-03-30
An (ethylene, vinyl acetal) copolymer includes (i) a plurality of ethylenic moieties A having a structure according to the formula:
wherein R
2
and R
3
independently represent hydrogen, a halogen, an optionally substituted linear, branched or cyclic alk(en)yl group, or an optionally substituted aromatic or heteroaromatic group; (ii) a plurality of acetal moieties B having a structure according to the formula:
wherein L
1
represents a divalent linking group; X=0 or 1; and R
1
represents an optionally substituted aromatic or heteroaromatic group including at least one hydroxyl group; and (iii) a plurality of acetal moieties C and/or moieties D which are different from the acetal moieties B, and which include at least one nitrogen atom.