Konica Minolta, Inc.

Keisuke Mizoguchi

Atsushi Takahashi

Akihiro Maezawa

Natsuki Ito

Hideaki Wakamatsu

Kenji Goto

Yuuki Nagai

Mitsuharu Kitamura

Chie Inui

Natsumi Hirayama

The present invention addresses the problem of providing a three-dimensional modeled article having high dimensional precision, high strength, and high ductility, and a resin composition for a three-dimensional modeled article, the resin composition being used to fabricate the three-dimensional modeled article, and of providing a method for manufacturing a three-dimensional modeled article. To address this problem, a resin composition for a three-dimensional modeled article according to the present invention contains resin particles having a continuous phase including a thermoplastic resin, and a dispersed phase including a thermoplastic elastomer, dispersed in the continuous phase, the amount of the thermoplastic elastomer therein being 1-12 parts by mass with respect to a total of 100 parts by mass of the thermoplastic resin and the thermoplastic elastomer.

Resin composition for three-dimensional modeling, three-dimensional modeled article, and method for manufacturing three-dimensional modeled article

The purpose of the present invention is to provide a resin composition for forming three-dimensionally shaped objects having high dimensional accuracy. In order to achieve the purpose, the resin composition is used in a three-dimensional shaping method wherein either forming a thin layer that comprises a particulate resin composition and selectively irradiating the thin layer with laser light are repeated or melt-extruding a resin composition into a filament shape and forming a layer of the filament-shaped extruded resin composition are repeated, thereby forming a three-dimensionally shaped object. The resin composition has a particulate or filament shape, comprises polysaccharide nanofibers and a resin, and has a content of the polysaccharide nanofibers of 1-70 mass %. In the resin composition, the maximum value of loss modulus at temperatures in the range of (melting temperature)&#xb1;20&#xb0; C. is 10-1,000 times the minimum value of loss modulus at temperatures in the range of (melting temperature)&#xb1;20&#xb0; C.

Resin composition and method for producing three-dimensionally shaped object using same

Provided is a quality inspection method in which an inner state of a three-dimensional laminated molding can be quickly and easily inspected without destroying the three-dimensional laminated molding. To this end, the quality inspection method uses an X-ray Talbot imaging systemwhich creates a reconstructed image of an inspection object on the basis of a moire image obtained by using an X-ray detector to read X-rays which, after being radiated from an X-ray source, have passed through: a plurality of grids in which a plurality of slits S are arranged in a direction perpendicular to the radiation axis direction of the X-ray; and an inspection object H placed on a subject table. The inspection object H is a three-dimensional laminated molding formed into a three-dimensional shape by laminating multiple layers of constituent materials. The reconstructed image is created while the inspection object H is placed on the subject tablein such a way that at least the lamination direction of layers constituting the inspection object H and the arrangement direction of the plurality of slits S in the plurality of grids are parallel. The inner state of the inspection object H is inspected on the basis of the reconstructed image.

Quality inspection method

An object of the present invention is to provide a cerium oxide abrasive material containing cerium oxide abrasive particles prepared by a synthetic method using an aqueous solution of a salt of a rare earth element and a precipitant, the cerium oxide abrasive particles having a spherical shape and high polishing performance (polishing rate and polishing precision of the polished surface), a method for producing the cerium oxide abrasive material, and a polishing method. The cerium oxide abrasive material according to the present invention comprises spherical cerium oxide abrasive particles prepared by a synthetic method using an aqueous solution of a salt of a rare earth element and a precipitant, wherein the cerium oxide abrasive particles have a spherical shape having an average aspect ratio within the range of 1.00 to 1.15.

Cerium oxide abrasive, method for producing cerium oxide abrasive, and polishing method

A production method for polishing-material particles, comprising: forming an inner layer having, as a main component thereof, a salt of at least one element selected from Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, In, Sn, Y, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, W, Bi, Th, and the alkali earth metals; adding a prepared aqueous solution, at a prescribed time, to a reaction solution in which the salt formed from the element is dispersed, to form an outer layer on the outer side of the inner layer; using solid-liquid separation to separate a polishing-material-particle precursor from the reaction solution, and the polishing-material-particle precursor is baked; and the percentage of Ce in the reaction solution in which the surface of the outer layer is formed is in the range of 60-90 mol % inclusive.

Production method for polishing-material particles

Disclosed are polishing material particles which have polishing performance suitable for precision polishing and also have a high polishing speed and high monodispersibility; a polishing material containing the polishing material particles; and a polishing processing method using the polishing material. The polishing material particles are spherical particles having an average aspect ratio of 1.00 to 1.15, wherein the particle diameter (D(nm)) of the polishing material particles as determined from a particle diameter cumulative distribution curve falls within the range from 50 to 1500 nm. The average content of cerium or the total content of cerium and at least one element selected from lanthanum (La), praseodymium (Pr), neodymium (Nd), samarium (Sm) and europium (Eu) in the polishing material particles is 81 mol % or more relative to the total content of all of rare earth elements that constitute the polishing material particles.

Polishing material particles, method for producing polishing material, and polishing processing method

An aspect of the present invention is a method for producing a resin film, including a casting step of casting a resin solution containing a transparent resin from a casting die onto a running support to form a cast membrane, and a releasing step of releasing the cast membrane from the support, wherein, in the casting step, a velocity at which the resin solution is discharged from longitudinally opposite ends of a discharge port of the casting die is 0.95 times to 1.5 times a velocity at which the resin solution is discharged from a longitudinally central portion of the discharge port of the casting die.

Method for producing resin film, casting die, device for producing resin film, resin film, polarizing plate, and liquid crystal display device

An aspect of the present invention is a method for producing a resin film, wherein in a casting step of a solution cast film-forming method, a dope is discharged from a discharge port of the casting die to cast the dope onto the support while a solvent capable of dissolving a transparent resin is flowed from the positions above the discharge port of the casting die through the outer surface of the casting die, and further from the longitudinally opposite ends of the discharge port of the casting die. The casting die has a surface energy of a first region which is 10 mN/m to 30 mN/m higher than a surface energy of a second region, the first region being the region, on the outer surface of the casting die, surrounded by the positions above the longitudinally opposite ends of the discharge port of the casting die and the longitudinally opposite ends of the discharge port of the casting die, and the second region being a region which is closer to a longitudinally central portion of the discharge port of the casting die than the first region.

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Hachioji, Japan

Keisuke Mizoguchi