N-alkyl-n-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, and adhesives containing these compounds
AssigneeBayer Aktiengesellschaft
InventorsMichael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
Life of this patent
Estimating the term…
Abstract
The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
Claims8
A method of treating dentine or dentine enamel which comprises applying thereto an N-alkyl-N-(meth)acryloyloxyalkyl-carboxamide of the formula ##STR24## in which X represents an N-alkyl-N-(meth)acryloyloxyalkyl-carboxamide of the formula ##STR25## wherein R.sub.1 denotes hydrogen or methyl,
- R.sub.2 denotes a divalent aliphatic radical (C.sub.2 -C.sub.6) and
- R.sub.3 denotes a monovalent aliphatic radical (C.sub.1 -C.sub.4),
- Y represents COOH, or the two Y groups togetehr form a --CO--O--CO-- radical,
- Z represents H, X or, if Y denotes COOH, Y, and
- Ph represents a tri or tetrasubstituted benzene ring (1,2,3-/1,2,4,- or 1,2,4,5-substitution) or a tri- or tetrasubstituted naphthalene ring (1,2,6-/1,4,5-/2,3,6-/1,4,5,8- or 2,3,6,7-substitution).
A method of treating dentine or dentine enamel which comprises applying thereto an N-alkyl-N(meth)acryloyloxyalkylcarboxamide of the formula ##STR26## in which R.sub.1 denotes hydrogen or methyl,
- R.sub.2 denotes a divalent aliphatic radical (C.sub.2 -C.sub.6) and
- R.sub.3 denotes a monovalent aliphatic radical (.sub.1 -C.sub.4),
- Z'denotes hydrogen or COOH
- and
- Ph represents a tri- or tetrasubstituted benzene ring (1,2,3-/1,2,4- or 1,2,4,5-substitution) or a tri- or tetrasubstituted naphthalene ring (1,2,6-/1,4,5-/2,3,6-/1,4,5,8- or 2,3,6,7-substitution).
A method of treating dentine or dentine enamel which comprises applying thereto an N-alkyl-N(meth)acryloyloxyalkyl-carboxamide of the formula ##STR27## in which R.sub.1 denotes hydrogen or methyl,
- R.sub.2 denotes a divalent aliphatic radical (C.sub.2 -C.sub.6) and
- R.sub.3 dentoes a monovalent aliphatic radical (C.sub.1 -C.sub.4),
- Z' denotes hydrogen or COOH
- and
- Ph represents a benzene ring which is tri- or tetrasubstituted (1,2,3-/1,2,4- or 1,2,4,5-substitution) or a tri- or tetrasubstituted naphthalene ring (1,2,6-/1,4,5-/ 2,3,6-/ 1,4,5,8- or 2,3,6,7-substitution).
A method of treating dentine or dentine enamel which comprises applyign thereto an N-alkyl-N(meth)acryloyloxyalkyl-carboxamide of the formula ##STR28## in which R.sub.1 denotes hydrogen or methyl,
- R.sub.2 denotes a divalent aliphatic radical (C.sub.2 -C.sub.6) and
- R.sub.3 denotes a monovalent aliphatic radical (C.sub.1 -C.sub.4),
- Z' denotes hydrogen or COOH
- and
- Ph represents a tri- or tetrasubstituted benzene ring (1,2,3-/1,2,4- or 1,2,4,5-substitution) or a tri- or tetrasubstituted naphthalene ring (1,2,6-/1,4,5/2,3,6-/1,4,5,8- or 2,3,6,7-substitution).
Dependencies are inferred from the claim text.