NEGATIVE-TYPE RADIATION-SENSITIVE MIXTURE AND RADIATION-SENSITIVE RECORDING MATERIAL MANUFACTURED BY USING SAID MIXTURE

摘要

PURPOSE: To obtain the radiation sensitive mixture high in sensitivity and producing no corrosive acid by using as a base a specified acid-producing compound in combination with a compound cross-linkable by an acid. CONSTITUTION: This radiation sensitive mixture comprises (a) the compound to be allowed to release a strong acid by the action of chemical rays, (b) a compound having at least 2 groups cross-linkable by the acid, and (c) a polymer binder insoluble in water but soluble in an aqueous solution of alkali or at least lubricous in it, and the compound (a) is 1-sulfonyloxy-2-pyridone represented by the formula in which R<1> is an H atom or an alkyl or cycloalkyl group or the like; R<2> is an H or halogen atom or an alkyl group or the like; R<3> is an H atom or an alkyl group; R<4> is an H atom or a nitro or acylamino group or the like; R<5> is an H atom or an alkyl or aryl group or the like; R<6> is an H or halogen atom or a nitro group or the like; and R<7> is an alkyl or cycloalkyl group.