Abstract: Disclosed is a method for producing a thermoplastic resin film, which comprises oxidizing the surface of a thermoplastic resin film (i) that contains an unsaturated carboxylic acid-modified polyolefin-based resin, then applying a surface modifier thereto, and stretching it. According to the method, thermoplastic resin films can be produced that have good adhesiveness between the film substrate and the coating layer thereof and have good printability and electrostatic resistance.

Abstract: The present invention provides a heat-sensitive recording material comprising a support and a heat-sensitive recording layer, wherein the heat-sensitive recording layer contains a leuco dye and a color developer, the leuco dye is in a form of composite particles comprising the leuco dye and a hydrophobic resin, and the color developer comprises at least 4,4?-cyclohexylidenediphenol and 4,4?-bis(N-p-tolylsulfonylaminocarbonylamino)diphenylmethane.

Abstract: The present invention provides a heat-sensitive recording material comprising a support and a heat-sensitive recording layer, wherein the heat-sensitive recording layer contains a leuco dye and a color developer, the leuco dye is in a form of composite particles comprising the leuco dye and a hydrophobic resin, and the color developer comprises at least 4,4?-cyclohexylidenediphenol and 4,4?-bis(N-p-tolylsulfonylaminocarbonylamino)diphenylmethane.

Abstract: Disclosed is a method for producing a thermoplastic resin film, which comprises oxidizing the surface of a thermoplastic resin film (i) that contains an unsaturated carboxylic acid-modified polyolefin-based resin, then applying a surface modifier thereto, and stretching it. According to the method, thermoplastic resin films can be produced that have good adhesiveness between the film substrate and the coating layer thereof and have good printability and electrostatic resistance.

Abstract: Disclosed is a method of surface treatment of a thermoplastic resin film (i) which comprises the steps of subjecting the thermoplastic resin film (i) to surface oxidation, coating the oxidized film with a surface modifier (A) and then stretching the coated film, and which is characterized in that: the surface modifier (A) is an aqueous dispersion prepared by dispersing an olefin copolymer (a) with an unsaturated carboxylic acid or its anhydride bonded thereto in water along with at least one dispersant (b) selected from the group consisting of nonionic surfactants, nonionic water-soluble polymers, cationic surfactants and cationic water-soluble polymers; the ratio by weight of (a)/(b) in terms of the solid content thereof falls between 100/1 and 100/30; and the mean particle size of the resin in the surface modifier (A) is at most 5 ?m. The method can provide a thermoplastic resin film of good melt thermal transfer printability and good offset printability capable of giving prints of good water resistance.

Abstract: Disclosed is a method of surface treatment of a thermoplastic resin film (i) which comprises the steps of subjecting the thermoplastic resin film (i) to surface oxidation, coating the oxidized film with a surface modifier (A) and then stretching the coated film, and which is characterized in that: the surface modifier (A) is an aqueous dispersion prepared by dispersing an olefin copolymer (a) with an unsaturated carboxylic acid or its anhydride bonded thereto in water along with at least one dispersant (b) selected from the group consisting of nonionic surfactants, nonionic water-soluble polymers, cationic surfactants and cationic water-soluble polymers; the ratio by weight of (a)/(b) in terms of the solid content thereof falls between 100/1 and 100/30; and the mean particle size of the resin in the surface modifier (A) is at most 5 &mgr;m.

Abstract: An image-receiving film for printing and heat transfer having a support made of a thermoplastic resin film, and a coated layer having component (A) is provided, wherein (A) is an aqueous resin dispersion obtained by dispersing an olefin copolymer (a) having an unsaturated carboxylic acid or its anhydride in water using at least one agent (b) selected from the group consisting of a nonionic surface active agent, a nonionic water-soluble high molecular compound, a cationic surface active agent, and a cationic water-soluble high molecular compound, wherein the weight ratio of (a)/(b) is from 100/1 to 100/30 and (a) and (b) each have independently a mean particle size of not more than 5 &mgr;m.

Abstract: A coated film comprises a thermoplastic resin support film (I), a primer coating layer (II) on at least one surface of the support (I), and an ink absorbing layer (III) comprising at least three kinds of inorganic pigments and a binder resin, coated onto the primer coating layer (II). The coated film of the present invention may be offset printed and printed with a thermal melt transfer or impact dot printer.

Abstract: A coated film comprises a thermoplastic resin support film (I), a primer coating layer (II) on at least one surface of the support (I), and an ink absorbing layer (III) comprising at least three kinds of inorganic pigments and a binder resin, coated onto the primer coating layer (II). The coated film of the present invention may be offset printed and printed with a thermal melt transfer or impact dot printer.

Abstract: An image-receiving film for printing and heat transfer having a support made of a thermoplastic resin film, and a coated layer having component (A) is provided, wherein (A) is an aqueous resin dispersion obtained by dispersing an olefin copolymer (a) having an unsaturated carboxylic acid or its anbydride in water using at least one agent (b) selected from the group consisting of a nonionic surface active agent, a nonionic water-soluble high molecular compound, a cationic surface active agent, and a cationic water-soluble high molecular compound, wherein the weight ratio of (a)/(b) is from 100/1 to 100/30 and (a) and (b) each have independently a mean particle size of not more than 5 &mgr;m.

Abstract: A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat, wherein a hectorite clay is incorporated in at least one of layers constituting the recording material.

Abstract: A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat, wherein a smectite clay or a combination of a synthetic hectorite clay and soap-free emulsion type binder is incorporated in at least one of layers constituting the recording material.

Abstract: A rolling-stock underframe construction comprising longitudinal side sills, end sills connecting opposite longitudinal ends of one side sills to opposite longitudinal ends of the other side sill, body bolsters respectively disposed at positions corresponding to trucks, and center sills extending between the end sills and the corresponding body bolsters in parallel to the side sills; and a floor member fixedly disposed in an area defined by the side sills and the end sills. The floor member comprises an upper plate forming, a lower plate forming, and a corrugated plate disposed between the upper plate and lower plate. The corrugated plate includes an alternate arrangement of ridges and longitudinal furrows and is joined to both the upper and lower plate.

Abstract: Disclosed is an electrostatic recording medium comprising an electroconductive support and as formed thereon a dielectric layer containing an insulating resin and a pigment, said dielectric layer carrying a surface static charge of a polarity opposite to that of a charge to be applied for image formation.

Abstract: The workability during fabrication of an underfloor construction of a monorail vehicle is improved by reducing the steps of fabrication. An underfloor construction of a monorail vehicle comprises truck enclosures detachably mounted at positions where trucks are mounted in the undersurface of the underframe to enclose the periphery of the trucks, and an enclosure for underfloor equipment for enclosing the sides and lower surface of the underfloor equipment. A method of assembling an underfloor construction of a monorail vehicle comprises mounting a wiring duct and underfloor equipment on the undersurface of an underframe, conducting wiring work between the wiring duct and the underfloor equipment, and thereafter mounting an enclosure for underfloor equipment.