| 摘要 |
A negative-working radiation-sensitive composition, comprising a mixture of a condensation polymer (A) having recurring units derived from (a) 1,4-bis( beta -hydroxyethoxy)cyclohexane and (b) diethyl-p-phenylenediacrylate; and a condensation polymer (B) having recurring units derived from (a), (b) and (c) dimethyl-3,3'-[sodioimino)disulfonyl]dibenzoate present in a weight ratio of A to B of from about 1:1 to about 9:1, and wherein units derived from (c) are present in an amount less that 1 mole % based on the total units in the polymer mixture, is particularly useful in preparing a printing plate which develops cleanly in an aqueous developer and exhibits improved speed and good incubation stability. |
