Verwendung von carboxylgruppenhaltigen Acetalpolymeren in lichtempfindlichen Zusammensetzungen und lithographischen Druckplatten

摘要

The present invention relates to a light-sensitive composition containing: (i) at least one diazonium polycondensation product or at least one system that can be radically polymerised and consists of photo initiators and unsaturated compounds which can be radically polymerised or at least one hybrid system consisting of a diazonium polycondensation product and a system that can be radically polymerised and consists of photo initiators and unsaturated compounds which can be radically polymerised, (ii) at least one binding agent and optionally one or more exposure indicators, one or more dyes for increasing the image contrast and one or more acids for stabilising the light-sensitive composition which is characterised in that the binding agent essentially consists of units (A, B, C, D), whereby A corresponds to formula (I), B corresponds to formula (II), C corresponds to formula (III) and D corresponds to formula (IV). The invention also relates to the use thereof for coating printing plates. The invention further relates to printing plates which are coated with said light-sensitive composition.