Positive-working radiation-sensitive composition and radiation-sensitive recording material produced therewith

摘要

The invention relates to a positive-working radiation-sensitive composition which contains a) a compound which forms strong acid on exposure to actinic radiation, b) a compound containing at least one acid-cleavable C-O-C or C-O-Si bond, and c) a water-insoluble polymeric binder which is soluble, or at least swellable, in aqueous alkali solutions, and which is characterised in that the compound a) is a 2,4-bistrichloromethyl-6-(mono- or dihydroxyphenyl)-1,3,5-triazine esterified with sulphonic acid(s) of the formula R-SO3H or R'(SO3H)2 and having the general formulae I and/or II where R is an optionally further substituted (C1-C10)alkyl, (C5-C10)cycloalkyl, (C6-C10)aryl, (C6-C10)aryl(C1-C10)alkyl, or (C3-C9)heteroaryl radical and R' is an optionally substituted (C1-C10)alkylene, (C6-C10)arylene or (C3-C9)heteroarylene radical, and n may be 1 or 2. The novel radiation-sensitive mixture is notable for a high resolution and a high sensitivity over a wide spectral range. The invention furthermore relates to a radiation-sensitive recording material which is produced therewith and is suitable for producing photoresists, electronic components or printing plates, or for chemical milling.