Abstract: A shaping roll for melt extrusion molding used for melt extrusion molding of thermoplastic resin, the shaping roll for melt extrusion molding comprises a metal roll body, a first cylinder, and a second cylinder. The metal roll body has a heat medium passage internally. The first cylinder covers a surface of a middle portion of the roll body part. The second cylinder covers surfaces of both end portions of the roll body part. The first cylinder comprises a first metal material having a thermal conductivity of 40 W/m·K or more. The second cylinder comprises a second metal material having a thermal conductivity of 20 W/m·K or less. The first cylinder and the second cylinder are at least partially joined to each other.

Abstract: A functional sheet with protective films obtained by laminating protective sheets includes aromatic polycarbonate onto a functional layer that is a polyvinyl alcohol polarizing layer or a photocromic layer or any combination thereof and having the protective films adhere to the protective sheets. The protective films have at least two or three layers i.e., a base layer composed of a polypropylene that has a melting point higher than the glass transition temperature of an aromatic polycarbonate; an adhesive layer composed of a heat plastic polyolefin elastomer composed of a polyolefin that has a melting point from a temperature that is 15° C. lower than the glass transition temperature of the aromatic polycarbonate to a temperature that is lower than the glass transition temperature and a styrene-olefin-styrene co-poly-elastomer; and a middle layer composed of a polyolefin resin between the base layer and the adhesive layer.

Abstract: The manufacturing apparatus of the present invention comprises a die for extruding a resin plate and a first roller and a second roller for molding the resin plate. The manufacturing apparatus further comprises: an inner deckel for dividing the resin plate and pre-forming a thick section; and a main molding section provided on the first roller and/or the second roller for molding a non-uniform thickness section from the thick section.

Abstract: Provided is a spherical or aspherical polarized mirrored glasses lens that substantially prevents the appearance of reflections caused by reflection from the mirrored surface, has a high transmittance, and with the use of a colored absorption-polarization film layer, allows arbitrary selection of the color of the field of view of the sunglasses user and the color of the lens as seen by others. A polarized mirrored glasses lens is fabricated, said lens being characterized by having, in order from the light-incidence side, at least a reflection-polarization film layer and an absorption-polarization film layer, and further characterized in that: the transmission axes of said layers are aligned; and the light-incidence side is a convex spherical or aspherical surface.

Abstract: Provided is an aromatic polycarbonate resin sheet/film which has excellent bending characteristics and surface smoothness. It is found that a sheet having excellent surface smoothness, which cannot be achieved by conventional sheets, can be obtained by adjusting sheet extrusion conditions for a polycarbonate resin sheet/film into which a reinforcing filler is blended. It is also found that a thermally shaped article having excellent appearance can be obtained by using this sheet in pressure molding or in thermal press molding.

Abstract: This sheet manufacturing apparatus is provided with: a nozzle for extruding a heated resin sheet; a main roll with a surface on which microstructures are formed; a follower roll disposed at a distance from the main roll; and an electricity-supplying mechanism. The electricity-supplying mechanism heats an electrically conductive section of the main roll by supplying electricity to the electrically conductive section from both edges of the main roll.

Abstract: The present invention provides a synthetic resin laminate, which is excellent in terms of shape stability in a high-temperature or high-humidity environment, surface hardness, heat resistance, coating adhesion and the like. The synthetic resin laminate is formed by laminating a resin layer (A) including 5% to 55% by mass of a (meth)acrylate copolymer (C) and 95% to 45% by mass of a polycarbonate (D) on one surface or both surfaces of a base material layer (B) comprising polycarbonate, wherein the synthetic resin laminate is characterized: in that the (meth)acrylate copolymer (C) includes an aromatic (meth)acrylate unit (c1) and a methyl methacrylate unit (c2) at a mass ratio (c1/c2) of 5 to 80/20 to 95; in that the mass average molecular weight of the (meth)acrylate copolymer (C) is 5,000 to 30,000; and in that the viscosity average molecular weight of the polycarbonate (D) is 21,000 to 40,000.

Abstract: The manufacturing device is provided with a first roller and a second roller for molding an uneven-thickness film. The first roller is provided with a truncated-cone-shaped portion and a disc-shaped portion, the diameter of the disc-shaped portion is larger than the diameter of a large-diameter face of the truncated-cone-shaped portion, and the second roller is provided with a column-shaped portion. A thick part is formed in a molded body of the uneven-thickness film between the truncated-cone-shaped portion of the first roller and the column-shaped portion of the second roller, and a thin connecting part is formed in the molded body between the disc-shaped portion of the first roller and the column-shaped portion of the second roller.

Abstract: The present invention has an object of providing a synthetic resin laminate that is usable for a transparent substrate material or protective material, has high thermoformability (pressure formability, thermal-bending formability), high insert moldability, and high surface hardness and/or impact resistance, and also providing a molded body formed by molding such a synthetic resin laminate. The synthetic resin laminate includes a polycarbonate-based substrate layer; and a resin laminated on one of, or both of, two surfaces of the polycarbonate-based substrate layer, the resin containing a specific (meth)acrylate copolymer resin and a specific polycarbonate resin. The polycarbonate-based substrate layer includes a polymer alloy and thus has a glass transition temperature (Tg) of 110 to 130° C. Thus, the resultant synthetic resin laminate has high thermoformability and high surface hardness.

Abstract: The present invention aims to provide a multi-layer sheet and a multi-layer film, each ensuring not only high transparency but also scratch resistance and being easy to print and thermoform. The above aim was achieved by a multi-layer sheet and a multi-layer film, each being a laminate which comprises a polycarbonate-based resin layer as a substrate and has a thermoplastic acrylic resin layer containing silicon dioxide particles as an outermost layer on one or both surfaces of the substrate, wherein the silicon dioxide particles have an average particle size of 0.1 to 2 ?m, and wherein the content of the silicon dioxide particles is 0.1% to 1% by weight, relative to the total weight of the thermoplastic acrylic resin layer.

Abstract: A thin sheet or film excellent in flame retardancy and light-blocking properties is provided. A battery pack case and others with high flame retardancy are each molded from this thin film. A thin sheet or film Including a specific phosphorus-containing flame retardant in a polycarbonate resin is excellent in thickness accuracy, flame retardancy and appearance. A thin sheet or film excellent in flame retardancy and also having a thickness of 0.01 to 0.25 mm was formed when controlling its thickness uniformly during sheet or film molding. Further, upon addition of carbon black, the resulting sheet or film was found to have good light-blocking properties and higher flame retardancy. Moreover, when used as a film packaging material for battery packs, the sheet or film of the present invention was found to be excellent in film strength and ultrasonic weldability.

Abstract: A functional sheet with protective films obtained by laminating protective sheets includes aromatic polycarbonate onto a functional layer that is a polyvinyl alcohol polarizing layer or a photocromic layer or any combination thereof and having the protective films adhere to the protective sheets. The protective films have at least two or three layers i.e., a base layer composed of a polypropylene that has a melting point higher than the glass transition temperature of an aromatic polycarbonate; an adhesive layer composed of a heat plastic polyolefin elastomer composed of a polyolefin that has a melting point from a temperature that is 15° C. lower than the glass transition temperature of the aromatic polycarbonate to a temperature that is lower than the glass transition temperature and a styrene-olefin-styrene co-poly-elastomer; and a middle layer composed of a polyolefin resin between the base layer and the adhesive layer.

Abstract: The present invention solves glare of an embossed matte film of a conventional product produced and sold by the applicant of the present application, and provides a light diffusion film and the like having a surface shape of an irregular pattern that significantly suppresses the glare even when an LED light source is used and also maintains the good optical characteristics. The following is believed sufficient for maintaining good optical characteristics of an embossed matte film and also for solving the glare. To maintain the optical characteristics, the surface shape was defined by use of an inclination angle histogram profile of an embossed surface. In order to solve the glare, the size of unit patterns which make up an entire pattern and do not cause glare was defined by use of the value of the average length RSm of the roughness curve element of the embossed surface.

Abstract: The optical sheet according to the present invention includes a first layer containing a polycarbonate resin and a second layer containing an amorphous polyamide resin, the first layer and the second layer being layered by coextrusion molding. The first layer and the second layer are peelable from each other; and a surface of at least one of the first layer and the second layer has a fine uneven shape formed thereat. Such an optical sheet including a plurality of layers can make the entirety sheet thick at the time of melt extrusion molding, and therefore the layered body during the molding can hold a sufficient amount of heat. This improves the transferability of the fine uneven structure. In addition, the layers may be peeled off so that one of the layers is used. In this case, the optical sheet can be made thinner.

Abstract: A colored low-polarizing film of a desired color is produced by causing a polyvinyl alcohol film to swell with water, stretching, dyeing with an organic dichroic dye, and drying it; a polarizing sheet including the film and transparent sheets attached to both sides of the film by an adhesive; and an injection-molded polarizing lens obtained by causing the sheet to curve to impart spherical or aspherical surfaces to obtain a curved polarizing lens and injecting a transparent resin onto the concave surface of the lens. The dye includes a dichroic organic dye and a coloration organic dye, wherein the dichroic composition includes a combination of dichroic dyes having a dichroic ratio of 13 or higher, wherein the coloration dye composition includes a combination of dyes having an extremely low dichroic ratio, of 4 or less, or substantially having no dichroic ratio.

Abstract: The present invention relates to a multilayer laminated product which at least contains a layer formed of an acrylic resin composition containing an acrylic resin as a main component, and a specific terminally-modified polycarbonate resin. Moreover, the multilayer laminated product of the present invention has an excellent releasability and low frictional properties.

Abstract: Provided is a polarizing lens that is excellent in terms of impact resistance, prevention of eye strain, and a small variation of color tone or transparency or both. A sunglass polarizing lens that is formed by laminating a transparent protective sheet via an adhesive layer to each surface of a polarizing film that is made from polyvinyl alcohol and that is stretched and stained with dichroic organic dye; curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet; and injecting a transparent resin for a lens onto a surface of the polarizing sheet, wherein the polarizing film is stained by combined dichroic organic dyes so that the dichroic ratio of the film is within the range of from 5 to 14.

Abstract: A polarizing film is produced by swelling a polyvinyl alcohol film with water, uniaxially stretching it, dyeing it with an organic dichroic dye, and drying it, wherein a dichroic organic dye composition includes a combination of organic dyes having a dichroic ratio of 13 or higher used in an amount to keep the degree of polarization at 90% or more, and wherein the coloration dye composition comprises a combination of dyes having extremely low dichroic ratios of 4 or less or substantially having no dichroic ratio, laminating at least one layer of a transparent plastic sheet onto at least both sides of the polarizing film, curving the polarizing sheet so as to impart spherical or aspherical surfaces thereto to obtain a polarizing and injecting a transparent resin to the concave surface of the curved polarizing sheet to obtain an injection polarizing lens.

Abstract: The present invention has an object of providing a synthetic resin laminate that is usable for a transparent substrate material or protective material, has high thermoformability (pressure formability, thermal-bending formability), high insert moldability, and high surface hardness and/or impact resistance, and also providing a molded body formed by molding such a synthetic resin laminate. The synthetic resin laminate includes a polycarbonate-based substrate layer; and a resin laminated on one of, or both of, two surfaces of the polycarbonate-based substrate layer, the resin containing a specific (meth)acrylate copolymer resin and a specific polycarbonate resin. The polycarbonate-based substrate layer includes a polymer alloy and thus has a glass transition temperature (Tg) of 110 to 130° C. Thus, the resultant synthetic resin laminate has high thermoformability and high surface hardness.

Abstract: Eyewear uses a polarizing lens obtained by bending a multilayer polarizing sheet in which a sheet (A) including at least 50% by mass of an aromatic polycarbonate resin and having a retardation value of 2000 nm or less at a wavelength of 600 nm is layered on one side of a polarizing film, and a sheet (B) including a special polycarbonate resin obtained by carbonate bonding a dihydroxy compound through use of a carbonic acid diester, the polycarbonate resin being a compound in which 70-100 mol % of the dihydroxy compound is represented by general formula (1), is layered on the other side of the polarizing film. (In general formula (1), R1 and R2 are each independently a hydrogen atom, a C1-C20 alkyl group, or the like. In general formula (1), X are each independently a C2-C8 alkylene group or the like.