Curable mixtures containing N-sulfonylaminosulfonium salts as cationically active catalysts
AssigneeBASF SE
InventorsAndreas Henne, Wolfram Ochs, Helmut Tesch, Gunnar Schornick, Reinhold J. Leyrer
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Abstract
Mixtures which are curable by heating or irradiation with actinic light contain one or more cationically curable compounds, such as an epoxy, an olefinically unsaturated monomer, amino resin or phenolic resin, and as a cationically active curing catalyst one or more N-sulfonylamino-sulfonium salts of the formula ##STR1## such as N-p-toluenesulfonyl-N-methylaminodiphenylsulfonium hexafluorophosphate with or without quinones or peroxides are suitable, inter alia, for producing moldings, coatings, relief images and resist patterns.
Claims10
A curable mixture containing
- (a) one or more compounds which, under the influence of a cationic catalyst, are convertible into a higher molecular weight compound, and
- (b) an active amount as a curing catalyst of an N-sulfonylaminosulfonium salt of the formula (I) ##STR7## where R.sup.1 is C.sub.1 -C.sub.18 -alkyl, 5- or 6-ring-cycloalkyl or phenyl which may be substituted by chlorine or bromine atoms, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio groups or carboxyl or alkoxy-carbonyl groups,
- R.sup.2 is C.sub.1 -C.sub.6 -alkyl, 5- or 6-ring-cycloalkyl, aliphatic C.sub.1 -C.sub.6 -acyl or substituted or unsubstituted benzoyl, R.sup.3 and R.sup.4 each have the same meanings as R.sup.1 and can be identical to or different from R.sup.1 and each other, and X.sup..crclbar. is a nonnucleophilic anion.
A light-sensitive recording material suitable for the production of relief images or resist patterns comprising, applied to a dimensionally stable substrate, a light-sensitive curable layer (L) containing
- (i) one or more compounds having two or more aromatic and/or hetaromatic o-nitrocarbinol ester groups of the formula.
Dependencies are inferred from the claim text.