Abstract: Disclosed herein are polyurethanes useful for polishing layers, where the polyurethane is a polyurethane having a Schiff base. Also disclosed herein are polishing layers containing the polyurethanes, polishing methods that use the polishing layers, and a modification method including a step of converting the Schiff base into at least one functional group selected from an aldehyde group, a carboxylic acid group, a hydroxyl group, and an amino group.

Abstract: The present invention relates to a multilayer structure including a base (X), a layer (Y), and a layer (Z), wherein the layer (Y) contains an aluminum-containing compound (A), and the layer (Z) contains an organic phosphorus compound (BO) and a polymer (F) having an ether bond and having no glycosidic bond.

Abstract: A methacrylic resin composition that has high transparency and a small phase difference in the thickness direction, and is easily stretched is provided. A methacrylic resin composition according to the present invention includes a methacrylic resin and a polycarbonate resin, in which the polycarbonate resin has a viscosity-average molecular weight larger than 15,000 and smaller than 32,000, a content of the polycarbonate resin based on 100 pts.mass of the methacrylic resin is no less than 1 pts.mass and no greater than 4 pts.mass, and a total amount of the methacrylic resin and the polycarbonate resin based on the methacrylic resin composition is 80 to 100 mass %.

Abstract: OBJECT An object is to provide a resin composition capable of forming a crosslinked product that is excellent in hot water resistance and excellent in interlayer adhesiveness when formed into a multilayered structure. SOLUTION The resin composition contains an ethylene-vinyl alcohol copolymer (A) and a crosslinking agent (B) with the crosslinking agent (B) in an amount of 0.6 to 15 parts by mass relative to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A), the crosslinking agent (B) being a powder obtained by impregnating a porous body (BS) with a crosslinkable compound (BL) having three or more polymerizable groups and a melting point of no greater than 40° C.

Abstract: The present invention provides a novel multilayer structure including a layered product capable of maintaining high performance even after being subjected to extrusion coating lamination. The present invention relates to a multilayer structure including a layered product and a layer (H) stacked on the layered product. The layered product includes a base (X), a layer (Z) containing an aluminum atom, and a layer (Y) containing a compound (A) containing a phosphorus atom. The layer (H) contains a thermoplastic resin (U), and the thermoplastic resin (U) is a polymer containing an ?-olefin unit.

Abstract: The method disclosed includes: a step (I) of preparing a dispersion liquid (S) including an aluminum compound (A); a step (II) of mixing the dispersion liquid (S) and a predetermined phosphorus compound (B) so as to prepare a coating liquid (U); a step (III) of applying the coating liquid (U) onto the base (X) so as to form a precursor layer of the layer (Y); and a step (IV) of subjecting the precursor layer to heat treatment at a temperature of 110° C. or more so as to form the layer (Y). The aluminum compound (A) can be formed by adding an acid to a solution including an aluminate. The number of moles (NM) of aluminum atoms derived from the aluminum compound (A) and the number of moles (NP) of phosphorus atoms derived from the phosphorus compound (B) satisfy 0.8?(NM)/(NP)?4.5.

Abstract: Disclosed is a non-porous molded article for a polishing layer, the non-porous molded article including a thermoplastic polyurethane, wherein the thermoplastic polyurethane has a maximum value of a loss tangent (tan 5) in a range of ?70 to ?50° C. of 4.00×10?2 or less. Preferably, the thermoplastic polyurethane is obtained by polymerization of a polymer diol having a number average molecular weight of 650 to 1400, an organic diisocyanate, and a chain extender, and a content ratio of nitrogen derived from an isocyanate group of the organic diisocyanate is 5.7 to 6.5 mass %.

Abstract: A grain-finished artificial leather composed of a base layer and a coating layer Y formed on one of the surfaces of the base layer. The base layer is composed of an entangled nonwoven fabric X made of bundles of microfine fibers having an average single fiber fineness of 0.07 dtex or less and impregnated with a polymeric elastomer A and a polymeric elastomer B. The entangled nonwoven fabric X is composed of a lower layer XA and an upper layer XB wherein the lower layer XA is impregnated mainly with the polymeric elastomer A which is substantially not adhered to the bundles of microfine fibers and the upper layer XB is impregnated mainly with the polymeric elastomer B which is substantially not adhered to the bundles of microfine fibers.

Abstract: An artificial leather sheet substrate comprising: a fiber entangled nonwoven fabric composed of bundles of a polyamide-based microfine fibers comprising a polyamide or a polyamide composition having a hot toluene swelling degree of 2 to 10%, and having a fineness of 0.1 decitex or less; and an elastic polymer and a releasing agent between the bundles, the releasing agent being also added to the inside of the bundles. This leather-like sheet substrate is soft and is excellent in denseness, dyeability and color fastness. The sheet is suitable, as a suede-like artificial leather or a grain surface like artificial leather, for fields for which high quality is required, for example, for clothing. The sheet is high in denseness of surface napped fiber and is excellent in hand touch, writing effect and draping ability, especially as a suede-like artificial leather.

Abstract: A blood collecting apparatus for collecting and reserving blood lost from the patient during or after operation, wherein thrombus contained in the collected blood is removed, and it is possible to prevent the new generation of the thrombus. The apparatus may readily be used safely. The apparatus includes a blood collecting container, a suction pipe having a branched pipe provided with a sterilizing filter, a collecting pipe provided with a port for supplying a blood anti-coagulant and a blood filter, and a discharge pipe having a blood filter. These pipes are connected to an upper part of the container. A suction unit is connected to an end portion of the suction pipe. A catheter or the like is connected to the end of the collecting pipe. The section unit is operated to suck and collect the blood from the incision during or after the operation.