Abstract: The dental restorative material of the present invention is a dental restorative material that contains a resin matrix and an inorganic filler in an amount of 25 to 1,000 parts by mass per 100 parts by mass of the resin matrix, and in the dental restorative material, the resin matrix contains a polyurethane resin, and the inorganic filler has an average particle diameter of 0.001 to 100 ?m. According to the present invention, a dental restorative material that has a high bending strength and a high surface hardness, and is excellent in transparency and cutting workability, and a resin material for dental cutting work containing the same can be provided.

Abstract: Filling of a powder particle material is executed for a flexible container bag (hereinafter, referred to as “flex container bag”) by executing a powder particle material filling step of filling the flex container bag with the powder particle material by supplying the powder particle material to the flex container bag, and a tapping step of executing a lifting operation of lifting up the flex container bag filled with the powder particle material to cause the flex container bag to be distant from a floor surface or a base bed thereabove and a dropping operation of dropping the flex container bag by releasing the lifting by the lifting operation to cause the flex container bag to collide with the floor surface or the base bed. The handling property of the flex container bag filled with the powder particle material can further be improved.

Abstract: There is provided a CNTs wire capable of materializing a low resistivity and improving the electroconductivity. The CNT wire is formed from a single CNT aggregate constituted of a plurality of CNTs . . . having a single- or multi-walled structure, or formed by bundling a plurality of the CNT aggregates. The proportion of the total number of the CNTs having a double-walled or triple-walled structure based on the number of the plurality of CNTs constituting the CNT wire is 75% or higher; the proportion of the total number of the CNTs having an average diameter of the innermost wall of 1.7 nm or smaller based on the number of the CNTs constituting the CNT wire is 75% or higher; and the full-width at half maximum ?? in azimuth angle in azimuth intensity distribution by SAXS indicating orientation of the plurality of CNT aggregates is 60° or smaller.

Abstract: A low-resistivity carbon nanotube aggregate includes a plurality of carbon nanotubes each having one or more walls, wherein a ratio of a total number of carbon nanotubes that have two or three walls relative to a total number of said plurality of carbon nanotubes is 75% or greater, and wherein, in a G band of a Raman spectrum in the Raman spectroscopy of the plurality of carbon nanotubes, a G+/Gtotal ratio that is indicative of an amount of semiconductor carbon nanotubes relative to metallic carbon nanotubes is 0.70 or greater.

Abstract: A method for preventing mastitis in lactating livestock includes forming a teat pack for the lactating livestock by adhering one of (i) a base comprising at least (A) a polymer latex and (ii) a secondary agent comprising at least (B) a coagulant to a teat of the lactating livestock, and subsequently adhering the other to the teat.

Abstract: A teat protective pack material for coating teats of lactating livestock to prevent mastitis is disclosed, the teat protective pack material including a polymer latex and a coagulant for coagulating the polymer latex to form a film. The teat protective pack material optionally includes a surfactant, a mold-releasing agent, a water-soluble polymer, water and/or a water-soluble solvent, an antifreezing agent, etc. if required. The teat protective pack material, may have excellent adhesiveness, elasticity, abrasion resistance, durability, aging resistance, oil resistance, weatherability, breast shape followability, etc. The teat protective pack material may be capable of immediately coating the whole teat and thus preventing adhesion of teat packs adjacent to each other, and, when milking again or in case of emergency, may be able to be quickly removed without using any additional facility, material, etc.

Abstract: 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).

Abstract: [Problems] A dental adhesive composition containing an acid group-containing polymerizable monomer, that can be used as a dental adhesive material or a primer. The dental adhesive composition has excellent durability of adhesion exhibiting further improved adhering strength and durability of adhesion enabling teeth to be more strongly adhered to a composite resin or a prosthetic over extended periods of time. [Means for Solution] The dental adhesive composition contains a polymerizable monomer and ions of an element of the Group IV as basic components, at least 10 mass % of the polymerizable monomer being a polymerizable monomer having a hydrogenphosphate diester group, such as bis(2-methacryloyloxyethyl)hydrogenphosphate or 2-methacryloyloxyethylphenyl hydrogenphosphate, and the content of ions of the element of the Group IV such as titanium ions or zirconium ions in the composition being 0.1 to 1.

Abstract: To improve an adhesive force of an adhesive agent between an impression material and a tray, and to stabilize the adhesive force therebetween, provided is an adhesive agent for the adhesion between an alginate impression material and an impression tray for dental applications, which includes a polyamine compound having two or more amino groups in a molecule and a solvent.

Abstract: 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).

Abstract: Provided is a dental filling/restoration kit, in which a pretreatment material and a filling/restoring material can be cured by only one irradiation with light, which enables further improved adhesion between a tooth and the filling/restoring material, which prevents the filling/restoring material from being easily colored, to thereby exhibit its excellent sensuousness. Specifically provided is a dental filling/restoration kit which includes: a filling/restoring material (A) containing 100 parts by mass of a radical-polymerizable monomer (a) containing 3 to 30 parts by mass of a water-soluble radical-polymerizable monomer having no acidic group (a1), a photopolymerization initiator (b), and a filler (c), the filler (c) being contained in an amount of 80 to 2,000 parts by mass relative to 100 parts by mass of the radical-polymerizable monomer (a); and a pretreatment material (B) containing a radical-polymerizable monomer having an acidic group (d) and water (e).

Abstract: The present invention discloses an adhesive for orthodontic attachments, which contains (A) a polymerizable monomer, (B) a polymerization initiator and (C) a fluorescent dye and, when cured, exhibits a fluorescence spectrum having a peak at 400 to 800 nm. As the polymerization initiator (B), there is preferably used a compound which generates a radical through the transfer of hydrogen between two components, or a compound which generates a radical species through intramolecular cleavage. As the fluorescent dye (C), a coumarin type dye is used preferably.

Abstract: There is provided is an interface apparatus including: a stream converter receiving write-addresses and write-data, storing the received data in a buffer, and sorting the stored write-data in the order of the write-addresses to output the write-data as stream-data; a cache memory storing received stream-data if a load-signal indicates that the stream-data are necessarily loaded and outputting data stored in a storage device corresponding to an input cache-address as cache-data; a controller determining whether or not data allocated with a read-address have already been loaded, outputting the load-signal instructing the loading on the cache memory if not loaded, and outputting a load-address indicating a load-completed-address of the cache memory; and at least one address converter calculating which one of the storage devices the allocated data are stored in, by using the load-address, outputting the calculated value as the cache-address to the cache memory, and outputting the cache-data as read-data.

Abstract: [Problems] A dental adhesive composition containing an acid group-containing polymerizable monomer, that can be used as a dental adhesive material or a primer. The dental adhesive composition has excellent durability of adhesion exhibiting further improved adhering strength and durability of adhesion enabling teeth to be more strongly adhered to a composite resin or a prosthetic over extended periods of time. [Means for Solution] The dental adhesive composition contains a polymerizable monomer and ions of an element of the Group IV as basic components, at least 10 mass % of the polymerizable monomer being a polymerizable monomer having a hydrogenphosphate diester group, such as bis(2-methacryloyloxyethyl)hydrogenphosphate or 2-methacryloyloxyethylphenyl hydrogenphosphate, and the content of ions of the element of the Group IV such as titanium ions or zirconium ions in the composition being 0.1 to 1.

Abstract: A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base.

Abstract: Provided is a dental filling/restoration kit, in which a pretreatment material and a filling/restoring material can be cured by only one irradiation with light, which enables further improved adhesion between a tooth and the filling/restoring material, which prevents the filling/restoring material from being easily colored, to thereby exhibit its excellent sensuousness. Specifically provided is a dental filling/restoration kit which includes: a filling/restoring material (A) containing 100 parts by mass of a radical-polymerizable monomer (a) containing 3 to 30 parts by mass of a water-soluble radical-polymerizable monomer having no acidic group (a1), a photopolymerization initiator (b), and a filler (c), the filler (c) being contained in an amount of 80 to 2,000 parts by mass relative to 100 parts by mass of the radical-polymerizable monomer (a); and a pretreatment material (B) containing a radical-polymerizable monomer having an acidic group (d) and water (e).

Abstract: There is provided is an interface apparatus including: a stream converter receiving write-addresses and write-data, storing the received data in a buffer, and sorting the stored write-data in the order of the write-addresses to output the write-data as stream-data; a cache memory storing received stream-data if a load-signal indicates that the stream-data are necessarily loaded and outputting data stored in a storage device corresponding to an input cache-address as cache-data; a controller determining whether or not data allocated with a read-address have already been loaded, outputting the load-signal instructing the loading on the cache memory if not loaded, and outputting a load-address indicating a load-completed-address of the cache memory; and at least one address converter calculating which one of the storage devices the allocated data are stored in, by using the load-address, outputting the calculated value as the cache-address to the cache memory, and outputting the cache-data as read-data.

Abstract: A curable composition comprising: (A) 100 parts by mass of a monomer component which comprises a radically polymerizable monomer and has a water absorbing capacity of not larger than 20% by weight; (B) 0.5 to 10 parts by mass of water; (C) 0.1 to 20 parts by mass of a surfactant; and (D) an effective amount of a radical polymerization initiator. The curable composition is cured by polymerization in a state where a water layer is formed on the surfaces of the cured body that is being formed, effectively suppressing the hindrance of polymerization caused by oxygen and decreasing the formation of unpolymerized product on the surfaces of the cured body. The curable composition is particularly useful as a dental restorative which involves difficulty when it is to be polymerized while shutting off oxygen.

Abstract: To improve an adhesive force of an adhesive agent between an impression material and a tray, and to stabilize the adhesive force therebetween, provided is an adhesive agent for the adhesion between an alginate impression material and an impression tray for dental applications, which includes a polyamine compound having two or more amino groups in a molecule and a solvent.

Abstract: A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base.