Abstract: The present invention provides a resin composition for stereolithography that excels in strength, toughness, and water resistance in the form of a shaped article. The present invention relates to a resin composition for stereolithography that comprises a urethanized (meth)acrylic compound (A), a (meth)acrylate compound (B) containing no urethane bond, and a photopolymerization initiator (C), the compound (A) being a urethanized (meth)acrylic compound (A-1) having a polymer structure, and/or a urethanized (meth)acrylic compound (A-2) having no polymer structure, the compound (A-1) having a weight-average molecular weight of less than 1,000, the compound (A-2) having a molecular weight of less than 1,000, the compound (B) comprising at least one selected from the group consisting of a (meth)acrylate compound (b-I) represented by general formula (I), and a (meth)acrylate compound (b-II) represented by general formula (II).

Abstract: A method for manufacturing a chloroprene polymer composition, the method including: a polymerization step of polymerizing chloroprene in the presence of at least one rosin acid component selected from the group consisting of a rosin acid and a rosin acid salt to obtain a chloroprene polymer composition containing a chloroprene polymer, in which in the rosin acid component, a mass ratio B1/A1 of a total amount B1 of abietic acid, neoabietic acid, palustric acid, levopimaric acid, and salts thereof with respect to a total amount A1 of dehydroabietic acid, pimaric acid, isopimaric acid, dihydroabietic acid, and salts thereof is 0.10 to 3.00, and a toluene insoluble content of the chloroprene polymer is 50% by mass or more.

Abstract: A dental intraoral device that is worn within an oral cavity, the dental intraoral device comprising a resin base portion that follows a shape of the oral cavity. At least a part of the base portion is formed into a mesh shape. The part of the base portion is preferably formed by approximately regularly arranging unit regions having holes.

Abstract: The present invention provides a resin composition for stereolithography that enables easy stereolithographical fabrication; and that can produce a cured object having desirable strain recovery, desirable toughness, and desirable water resistance. The present invention relates to a resin composition for stereolithography comprising a polymerizable compound (A) whose homopolymer has a glass transition temperature (Tg) of 37° C. or higher; and a photopolymerization initiator (B), and having a tan ? at 37° C. of 0.3 or less after cure.

Abstract: A resin composition for optical shaping comprising: an ?,?-unsaturated double bond group-containing compound (A) having a ring structure (a) containing a nitrogen atom; a (meth)acrylic acid ester compound (B) having a boiling point of 280° C. or more at normal pressure, having a carbocyclic group, and having no nitrogen-containing heterocyclic group; a photopolymerization initiator (C); and optionally, a polyfunctional polymerizable monomer (E) having a molecular weight of 500 or less and not comprised in the ?,?-unsaturated double bond group-containing compound (A) and the (meth)acrylic acid ester compound (B), wherein the content of the polyfunctional polymerizable monomer (E) having a molecular weight of 500 or less is 20 mass % or less relative to the total amount of polymerizable compounds comprised in the resin composition for optical shaping.

Abstract: A control device comprising an image acquisition unit which acquires a distance image captured by a visual sensor; and a determination unit which, on the basis of the distance image, determines whether or not an object has been placed within a range specified by predetermined input information.

Abstract: The present invention provides a resin composition for stereolithography that is easily shapable with good shape precision while reducing sedimentation of inorganic particles during storage, and a obtained three-dimensional shaped article thereby excels in mechanical characteristics such as flexural strength and flexural modulus, in addition to having a desirable shade and good shade stability. The present invention relates to a resin composition for stereolithography comprising a polymerizable monomer (a), a photopolymerization initiator (b), an inorganic particle (c) having an average particle diameter of 5 to 500 nm, and a hindered phenolic compound (d), wherein the content of the photopolymerization initiator (b) is 0.1 to 10 parts by mass relative to 100 parts by mass of the polymerizable monomer (a), the content of the inorganic particle (c) is 50 to 400 parts by mass relative to 100 parts by mass of the polymerizable monomer (a), and the content of the hindered phenolic compound (d) is 0.

Abstract: A resin composition for stereolithography may emit a weak odor, enable easy fabrication of an object, and may be made into a cured product having desirable toughness and water resistance when used for stereolithographical fabrication. A resin composition for stereolithography may include: an ?,?-unsaturated double bond group-containing compound (A) having a homopolymer glass transition temperature (Tg) of 40° C. or more, having a plurality of independent aromatic rings, and having no urethane bond; an ?,?-unsaturated double bond group-containing compound (B) having a homopolymer glass transition temperature (Tg) of less than 40° C., having a ring structure, and having a normal boiling point of 250° C. or more; and a photopolymerization initiator (C).

Abstract: The present invention aims to provide a chloroprene-based polymer latex capable of obtaining a dip-molded product of a chloroprene-based polymer, wherein the dip-molded product has sufficient tensile strength at break and excellent texture. According to the present invention, provided is a chloroprene-based polymer latex, wherein apparent hardness of a 0.60±0.10 mm-thick dip-molded film containing the chloroprene-based polymer latex, measured at 23° C. using a Wallace micro automatic hardness tester, is 25.0 IRHD or more and 40.0 IRHD or less, the 0.60±0.10 mm-thick dip-molded film is a laminate of multiple 0.15 to 0.25 mm-thick dip-molded films, the 0.15 to 0.25 mm-thick dip-molded film is obtained by immersing a ceramic mold to which a calcium-based coagulation liquid has been applied in a chloroprene-based polymer latex composition containing the chloroprene-based polymer latex by an immersion coagulation method, and then subjecting the dip-molded film to a heat-drying treatment at 150° C. for 60 minutes.

Abstract: Provided is a polymer latex composition capable of obtaining a dip-molded body having excellent flexibility, breaking elongation, and breaking strength. A polymer latex composition including a carboxy-modified acrylonitrile-butadiene copolymer (A), a carboxy-modified chloroprene copolymer (B), and a metal oxide (C), wherein a component ratio (A)/(B) of the carboxy-modified acrylonitrile-butadiene copolymer (A) and the carboxy-modified chloroprene copolymer (B) in the polymer latex composition is 90/10 to 50/50.

Abstract: A teaching device comprises: an object detection unit that detects an object from a captured image obtained by imaging the object with a visual sensor; an imaging condition setting unit that sets a plurality of imaging conditions relating to the imaging of the object, and causes the object detection unit to image and detect the object with each of the plurality of imaging conditions; and a detection result determination unit that determines the detection results to formally use, on the basis of an indicator representing statistical properties of a plurality of detection results obtained by imaging and detection under the plurality of imaging conditions.

Abstract: The present invention provides a chloroprene-based polymer latex composition, which has a low residual amount of mercaptans with hygiene concerns remaining, and which can obtain a chloroprene-based polymer dip-molded article having excellent flexibility and high breaking strength even with use of less vulcanization accelerator and sulfur, due to the plasticizing effect of a low molecular weight polymer and the use of a heteroaromatic ring-based compound. According to the present invention, there is provided a chloroprene-based polymer latex composition including a chloroprene-based polymer latex, a metal oxide, and a heteroaromatic ring-based compound, wherein the chloroprene-based polymer latex composition includes 0.5 to 15.0 parts by mass of the metal oxide and 0.1 to 10.0 parts by mass of the heteroaromatic ring-based compound per 100 parts by mass of solid content of the chloroprene-based polymer latex, the chloroprene-based polymer latex composition has a content of alkyl mercaptan compounds of 0.

Abstract: A method for manufacturing a mouthpiece includes manufacturing the mouthpiece that is to be placed within an oral cavity to cover teeth by an additive manufacturing device and laminating hardened layers not to form an annular lamination trace in a buccal portion that covers a buccal surface of a front tooth.

Abstract: A chloroprene polymer latex containing: a chloroprene polymer, at least one selected from the group consisting of rosin acid, sodium rosinate, and potassium rosinate; and at least one selected from the group consisting of sodium hydroxide and potassium hydroxide, in which a toluene insoluble content of the chloroprene polymer is 10% by mass or less, and a weight average molecular weight of a toluene soluble content is 5,000 to 200,000.

Abstract: A chloroprene polymer containing at least one selected from the group consisting of a homopolymer of chloroprene and a copolymer of chloroprene with 2,3-dichloro-1,3-butadiene, in which in gel permeation chromatography measurement of a toluene soluble content, the chloroprene polymer has a first peak having a weight average molecular weight of 500,000 to 900,000 and a second peak having a weight average molecular weight of 7,000 to 80,000, and a toluene insoluble content is 60% by mass or more.

Abstract: A chloroprene polymer latex composition being a mixture of a chloroprene polymer latex A and a chloroprene polymer latex B, in which a 2,3-dichloro-1,3-butadiene copolymerized amount in a chloroprene polymer of the chloroprene polymer latex B is 3% by mass or more, a toluene insoluble content of the chloroprene polymer of the chloroprene polymer latex B is 70% by mass or more, a weight average molecular weight of a toluene soluble content in the chloroprene polymer latex A is 5,000 to 250,000, and a specific mass ratio b/a is 0.10 or more.

Abstract: Provided is a teaching device comprising a determination unit that determines whether or not a storage condition relating to the result of processing a designated object by a visual sensor is satisfied, and a history storage unit that stores history information indicating the result of processing into a storage device if the storage condition is determined to be satisfied.

Abstract: The present invention provides a resin composition for stereolithographic modeling emitting a weak odor, having desirable shape accuracy, and made into a cured product having desirable strength, toughness, and color tone when used for stereolithographic modeling. The present invention relates to a resin composition for stereolithographic modeling, comprising: a polymerizable monomer (A); a photopolymerization initiator (B), and an organic peroxide (C), wherein the polymerizable monomer (A) comprises a (meth)acrylic acid ester compound (A-1) having a viscosity of 1,000 mPa·s or less and a normal boiling point of 270° C. or more and/or a (meth)acrylamide compound (A-2) having a viscosity of 1,000 mPa·s or less and a normal boiling point of 200° C. or more, and the photopolymerization initiator (B) is at least one selected from a (bis)acylphosphine oxide, an ?-hydroxyketone compound, an ?-aminoketone compound, a benzoin alkyl ether compound, a thioxanthone, a ketal, an ?-diketone, and an anthraquinone.

Abstract: A teaching device for creating a control program for a robot includes: a screen generation unit which generates a program creation screen for creating a program via commands representing functions constituting the control program for the robot; and a related information display control unit which, in accordance with the selection of or an execute instruction for a command disposed in the program creation screen, displays information relating to the command subject to the selection or the execute instruction.

Abstract: A method for producing a chloroprene polymer composition containing a chloroprene polymer, the method including: a polymerization step of polymerizing a monomer containing chloroprene at a polymerization rate of 20% or more to obtain a polymer composition containing a chloroprene polymer; and a mixing step of mixing the polymer composition with a rosin containing at least one conjugate resin acid component selected from the group consisting of abietic acid, neoabietic acid, palustric acid, levopimaric acid, and salts thereof, in which a mixed amount of the rosin in the mixing step is more than 0 parts by mass and 23 parts by mass or less with respect to 100 parts by mass of solid content of the polymer composition.