Patent ID: 8183306
Filing Date: 2012-05-22
Classification: A61K,C09J

Abstract:
1. A two-paste type dental self-adhesive composite resin cement consisting of a first paste and a second paste, which exhibits an effective shear bond strength for dentin, wherein, the first paste comprises, on a basis of 50% by weight of the first paste: (a)-(1) 8.0-22.5% by weight of a radical polymerizable monomer, (d)-(1) 27.45-40.0% by weight of a filler, and (e)-(1) 0.025-1.0% by weight of an alkali metal salt or an alkaline earth metal salt of barbituric acid and/or 0.025-0.5% by weight of aromatic secondary or tertiary amine, and the second paste comprises, on a basis of 50% by weight of the second paste: (a)-(2) 5.0-22.5% by weight of a second radical polymerizable monomer, (b) 0.05-3.0% by weight of a polymerizable monomer having a phosphonic acid group represented by formula [I]: wherein R 1 is a hydrogen atom or a methyl group, R 2 is an alkylene group of the carbon atom number of 5-10, and R 3 is an alkylene group of the carbon atom number 1-6, (c) 0.05-3.0% by weight of a polymerizable monomer having a dibasic acid carboxyl group, (d)-(2) 27.3-40.0% by weight of a second filler, and (e)-(2) 0.3-0.8% by weight of a chemical polymerization initiator and/or a photopolymerization initiator, and wherein both of the pastes are free from water.