Abstract: Provided are monomers useful for dental materials that include a compound in which a core and a specific terminal group are bonded to each other directly or via a linking group, wherein the core is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group or the linking group is the oxygen atom or the nitrogen atom; the terminal group is a specific (meth)acryloyl group-containing group, a (meth)acryloyl group, a C1-20 hydrocarbon group or a hydrogen atom, and the terminal group needs to meet specific requirements; and the linking group is a specific divalent group, and when the compound contains a plurality of linking groups, the linking groups may be the same as or different from each other. Compositions, dental materials and kits are also provided.

Abstract: Provided are adhesive monomers for dental materials including compounds represented by the general formula (1) below, in which the core (X) and the terminal group (Y1) are bonded to each other directly or via the linking group (Z): X(Y1)n1a(Z—Y1)n1b(1) wherein n1a represents the number of terminal groups (Y1) directly bonded to the core (X), n1b represents the number of terminal groups (Y1) bonded to the core (X) via the linking group (Z), and the sum of n1a and n1b is equal to the valence of the core (X); the core (X), the linking group (Z) and the terminal group (Y1) are further defined. The adhesive monomers can enhance adhesive strength to the tooth in dental treatment, and impart high mechanical strength to cured products.

Abstract: Provided are monomers useful for dental materials that include a compound in which a core and a specific terminal group are bonded to each other directly or via a linking group, wherein the core is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group or the linking group is the oxygen atom or the nitrogen atom; the terminal group is a specific (meth)acryloyl group-containing group, a (meth)acryloyl group, a C1-20 hydrocarbon group or a hydrogen atom, and the terminal group needs to meet specific requirements; and the linking group is a specific divalent group, and when the compound contains a plurality of linking groups, the linking groups may be the same as or different from each other. Compositions, dental materials and kits are also provided.

Abstract: A compound (A) is represented by the formula (1): wherein R1 is a hydrogen atom or an alkali metal atom, R2 is a hydrogen atom or an alkali metal atom, R3 is a hydrogen atom or a methyl group, Z is a divalent or trivalent organic group, and the lines consisting of a solid line and a broken line bonded to Z represent a single bond or a double bond.

Abstract: A dental adhesive curable composition containing a polymerizable monomer including a polymerizable monomer represented by formula (1?) and defined amounts of an acidic group-containing polymerizable monomer, a polymerization initiator containing a peroxide and a photopolymerization initiator, and a reductant containing a sulfinic acid compound and/or a salt thereof, and a filler: wherein the R groups, n and m are defined. A dental adhesive curable kit and a mobile tooth fixing material are also provided.

Abstract: Provided are monomers useful for dental materials that include a compound in which a core and a specific terminal group are bonded to each other directly or via a linking group, wherein the core is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group or the linking group is the oxygen atom or the nitrogen atom; the terminal group is a specific (meth)acryloyl group-containing group, a (meth)acryloyl group, a C1-20 hydrocarbon group or a hydrogen atom, and the terminal group needs to meet specific requirements; and the linking group is a specific divalent group, and when the compound contains a plurality of linking groups, the linking groups may be the same as or different from each other. Compositions, dental materials and kits are also provided.

Abstract: A dental adhesive curable composition containing a polymerizable monomer including a polymerizable monomer represented by formula (1?) and defined amounts of an acidic group-containing polymerizable monomer, a polymerization initiator containing a peroxide and a photopolymerization initiator, and a reductant containing a sulfinic acid compound and/or a salt thereof, and a filler: wherein the R groups, n and m are defined. A dental adhesive curable kit and a mobile tooth fixing material are also provided.

Abstract: Provided are adhesive monomers for dental materials including compounds represented by the general formula (1) below, in which the core (X) and the terminal group (Y1) are bonded to each other directly or via the linking group (Z): X(Y1)n1a(Z?Y1)n1b(1) wherein n1a represents the number of terminal groups (Y1) directly bonded to the core (X), n1b represents the number of terminal groups (Y1) bonded to the core (X) via the linking group (Z), and the sum of n1a and n1b is equal to the valence of the core (X); the core (X), the linking group (Z) and the terminal group (Y1) are further defined. The adhesive monomers can enhance adhesive strength to the tooth in dental treatment, and impart high mechanical strength to cured products.

Abstract: Provided are adhesive materials which exhibit high adhesive strength, and compounds which can be blended with the adhesive materials. The compounds are represented by the general formula: X(Y1)n1, in which the core (X) and the terminal group (Y1) are bonded to each other, n1 represents the number of terminal groups (Y1) bonded to the core (X), and n1 is equal to the valence of the core (X); the core (X) is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group (Y1) is the oxygen atom or the nitrogen atom; and the terminal group (Y1) is further defined.

Abstract: Provided are monomers useful for dental materials that include a compound in which a core and a specific terminal group are bonded to each other directly or via a linking group, wherein the core is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group or the linking group is the oxygen atom or the nitrogen atom; the terminal group is a specific (meth)acryloyl group-containing group, a (meth)acryloyl group, a C1-20 hydrocarbon group or a hydrogen atom, and the terminal group needs to meet specific requirements; and the linking group is a specific divalent group, and when the compound contains a plurality of linking groups, the linking groups may be the same as or different from each other. Compositions, dental materials and kits are also provided.

Abstract: The present invention provides polymerizable monomers represented by the following general formula (1) that are useful as dental materials. In the general formula (1), Ra is a divalent C6-9 aromatic hydrocarbon group or a divalent C6-9 optionally bridged cyclic hydrocarbon group, R1 and R2 are each a hydrogen atom or a C1-3 alkyl group, R3, R4, R5 and R6 are each a hydrogen atom or a hydrocarbon group, R7 and R8 are each a hydrogen atom or a methyl group, m and n are each independently 0 to 4, and Rb and Rc are each independently a C2-6 linear alkylene or C2-6 linear oxyalkylene group optionally substituted with a C1-3 alkyl group or a (meth)acryloyloxymethylene group in place of a hydrogen atom.

Abstract: Provided are dental polymerizable monomers that can give cured products having high toughness and high rigidity, dental polymerizable monomer compositions containing the polymerizable monomers, and dental compositions containing the dental polymerizable monomer compositions, and cured products thereof having high mechanical properties. The dental polymerizable monomer (A) which includes a urethane acrylate obtained from an appropriately rigid diisocyanate and an appropriately flexible hydroxyacrylate is used to prepare a dental polymerizable monomer composition containing the dental polymerizable monomer, and a dental composition containing the dental polymerizable monomer composition.

Abstract: Provided are dental polymerizable monomer compositions that can give cured products having high toughness and high rigidity, and dental compositions containing such dental polymerizable monomer compositions and cured products thereof having high mechanical properties.

Abstract: The present invention provides polymerizable monomers represented by the following general formula (1) that are useful as dental materials. In the general formula (1), Ra is a divalent C6-9 aromatic hydrocarbon group or a divalent C6-9 optionally bridged cyclic hydrocarbon group, R1 and R2 are each a hydrogen atom or a C1-3 alkyl group, R3, R4, R5 and R6 are each a hydrogen atom or a hydrocarbon group, R7 and R8 are each a hydrogen atom or a methyl group, m and n are each independently 0 to 4, and Rb and Rc are each independently a C2-6 linear alkylene or C2-6 linear oxyalkylene group optionally substituted with a C1-3 alkyl group or a (meth)acryloyloxymethylene group in place of a hydrogen atom.

Abstract: Provided are dental polymerizable monomer compositions that can give cured products having high toughness and high rigidity, and dental compositions containing such dental polymerizable monomer compositions and cured products thereof having high mechanical properties.

Abstract: Provided are dental polymerizable monomers that can give cured products having high toughness and high rigidity, dental polymerizable monomer compositions containing the polymerizable monomers, and dental compositions containing the dental polymerizable monomer compositions, and cured products thereof having high mechanical properties. The dental polymerizable monomer (A) which includes a urethane acrylate obtained from an appropriately rigid diisocyanate and an appropriately flexible hydroxyacrylate is used to prepare a dental polymerizable monomer composition containing the dental polymerizable monomer, and a dental composition containing the dental polymerizable monomer composition.

Abstract: Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.

Abstract: The present invention relates to titanium catalysts for synthesis reactions produced by bringing a reaction mixture comprising a titanium alkoxide and a ligand in contact with water, wherein the ligand is represented by the general formula (e): wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and (A) represents a group with two or more carbon atoms. The titanium catalysts may be isolated in solid form and may be stored. The invention further relates to a process for cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.

Abstract: Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.

Abstract: The present invention relates to titanium catalysts for synthesis reactions produced by bringing a reaction mixture comprising a titanium alkoxide and a ligand in contact with water, wherein the ligand is represented by the general formula (e): wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and (A) represents a group with two or more carbon atoms. The titanium catalysts may be isolated in solid form and may be stored. The invention further relates to a process for cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.