Patent ID: 6063545
Filing Date: 2000-05-16
Classification: C07C,G03F,Y10S

Abstract:
A negative-working radiation-sensitive mixture comprising:a) at least one compound which generates a strong acid under the action of actinic radiation, selected from a di-, tri- or tetrahydroxybenzene optionally substituted by one or more radicals R', or a polymer containing at least one of a di-, tri-, or tetrahydroxy phenyl radical; which is partially or fully esterified with sulfonic acids of the formula R--SO.sub.3 H, where R and R' may be the same or different, and R is a [(C.sub.1 -C.sub.10)alkyl], (C.sub.5 -C.sub.10)cycloalkyl, (C.sub.6 -C.sub.10)aryl, (C.sub.6 -C.sub.10)aryl(C.sub.1 -C.sub.10)alkyl or (C.sub.3 -C.sub.9)heteroaryl radical, any of which may be further substituted, and R' is one of the radicals given for R or is a (C.sub.1 -C.sub.10)alkyl, (C.sub.1 -C.sub.10)alkanoyl, (C.sub.1 -C.sub.16)alkoxycarbonyl or (C.sub.7 -C.sub.11)aroyl radical, any of which may be substituted,b) at least one compound having at least two groups crosslinkable by means of said strong acid, andc) at least one polymeric binder which is insoluble in water and soluble or at least swellable in an aqueous alkaline solution.