Radiation-sensitive mixture containing novel polymers embodying units composed of amides of .alpha., .beta.-unsaturated carboxylic acids as binders
AssigneeHoechst Aktiengesellschaft
InventorsKlaus-Juergen Przybilla, Georg Pawlowski, Horst Roeschert
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Abstract
A radiation-sensitive mixture is disclosed that contains a polymeric binder having acid-cleavable side groups and a compound which forms a strong acid on irradiation. Novel amides of .alpha.,.beta.-unsaturated carboxylic acids with which the polymers used as binders are synthesized are also disclosed. A positive- or negative-working radiation-sensitive recording material comprising a base and a layer of the radiation-sensitive mixture according to the invention is also disclosed.
Claims18
A polymer embodying units of the formula I ##STR4## where R.sup.1 is an acid-cleavable benzyl, trialkylsilyl, alkoxycarbonyl, tetrahydropyranyl or tetrahydrofuranyl group,
- R.sup.2 is (C.sub.1 -C.sub.4) alkyl, halogen (C.sub.1 -C.sub.4) alkyl or hydrogen,
- R.sup.3,4,5,6 are, independently of one another, an optionally halogen-substituted aliphatic, araliphatic or aromatic radical containing 1 to 20 carbon atoms, a halogen atom or hydrogen, and
- R.sup.7 is (C.sub.1 -C.sub.4) alkyl or hydrogen.
A polymer as claimed in claim 11, which is a terpolymer that contains, in addition to two different units of the formula I containing acid-cleavable groups, units derived from methacrylic acid or from an ester or amide of (meth)acrylic acid.
Dependencies are inferred from the claim text.