RENN, CAROLINE,ELSNER, OLIVER,MAIER, MAXIMILIAN,SZILLAT, FLORIAN,KLEE, JOACHIM E.,WEBER, CHRISTOPH,WALZ, UWE,SCHEUFLER, CHRISTIAN,RITTER, HELMUT,LICHKUS, ANDREW MURRAY,JIN, XIAOMING
申请号：
CA2964242
公开号：
CA2964242A1
申请日:
2017.04.12
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
The present invention relates to an aqueous dental glass ionomer compositioncomprising(A) a reactive particulate glass,(B) a water-soluble, polymerizable polymer comprising acidic groups,which isreactive with the particulate glass in a cement reaction, whereby thepolymerizable polymer has a polymer backbone and pendant groups having oneor more polymerizable carbon-carbon double bonds, wherein the polymerizablepolymer is obtainable by a process comprisinga) a step of polymerizing a mixture comprising(i) a first polymerizable monomer comprising at least one optionallyprotected carboxylic acid group and a first polymerizable organicmoiety, and optionally(ii) a second copolymerizable monomer comprising one or moreoptionally protected primary and/or secondary hydroxyl and/oramino group(s) and a second polymerizable organic moiety,for obtaining an water-soluble polymer；b) a step of coupling to the water-soluble polymer a compoundhaving apolymerizable moiety and a functional group reactive with an optionallyprotected carboxylic acid group of repeating units derived from the firstpolymerizable monomer or an optionally protected hydroxyl and/or aminogroup of repeating units derived from the second copolymerizablemonomer in the water-soluble polymer obtained in step a), wherein theoptionally protected carboxylic acid group and the optionally protectedhydroxyl and/or amine group are deprotected, so that polymerizablependant groups are linked to the backbone by ester groups, urethanegroups and/or amide groups,and, optionally, a step of deprotecting the protected carboxylic acid groupafterstep a) or step b), for obtaining a polymerizable polymer；(C) a hydrolysis-stable, water-soluble monomer having a singlepolymerizabledouble bond and optionally a carboxylic acid group or hydroxyl group； and(D) a polymerization initiator system.
