| 摘要 |
A curable composition with an enhanced drying window for use in a primary or secondary imaging system is obtainable as the reaction product of an anhydride polymer and at least an ethylenically unsaturated material having one or more hydroxy groups. The anhydride functional polymer is obtainable as the reaction product of an ethylenically unsaturated monomer and an ethylenically unsaturated cyclic anhydride capable of copolymerizing with the unsaturated monomer. The latter reaction is effected in the presence of a free radical initiator with a low hydrogen abstracting capability. This is defined as an initiator having a hydrogen bond dissociation energy of no more than 430 KJ/mole. Suitable initiators are t-amyl peroxy compounds. |
