Curable composition for dentistry

摘要

A dental curable composition includes: a radically polymerizable monomer; a polymerization initiator; and a hyperbranched polymer, in which the hyperbranched polymer includes a unit structure represented by the general formula (I) and unit structures represented by the general formula (IIA) and/or the general formula (IIB) (in the general formula (I), A represents a single bond for bonding C and R1, >C═O, —O—, or —COO—, R1 represents a divalent saturated aliphatic hydrocarbon group or a divalent aromatic hydrocarbon group, and R2 represents a hydrogen atom or a methyl group; and in the general formula (IIA) and the general formula (IIB), R3, R4, and R5 each represent a hydrogen atom, an alkyl group, an alkoxycarbonyl group, an aryl group, or a cyano group, and R6 represents an alkylene group).;

主权项

1. A dental curable composition, comprising:
a radically polymerizable monomer; a polymerization initiator; and a hyperbranched polymer, wherein the hyperbranched polymer consists essentially of a unit structure represented by the following general formula (I), at least one unit structure selected from a unit structure represented by the following general formula (IIA), a unit structure represented by the following general formula (IIB), and a unit structure represented by the following general formula (IIIA) and wherein the ratio of the unit structure represented by the general formula (IIIA) in a whole unit structure is 5 mol % or less: in the general formula (I), A represents a single bond for bonding C and R1, >C═O, —O—, or —COO—, R1 represents a divalent saturated aliphatic hydrocarbon group or a divalent aromatic hydrocarbon group, and R2 represents a hydrogen atom or a methyl group; in the general formula (IIA) and the general formula (IIB), R3, R4, and R5 each represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms for forming a main chain, an alkoxycarbonyl group having 1 to 5 carbon atoms for forming a main chain, an aryl group, or a cyano group; and in the general formula (IIB), R6 represents an alkylene group having 4 to 10 carbon atoms for forming a main chain; and in the general formula (IIIA), A, R1, and R2 are the same as A, R1, and R2 shown in the general formula (I).