Abstract: Provided is a thermoplastic resin having a high refractive index, which is favorable as an optical material. Provided are a polyformal resin copolymer comprising a high refractive index diol that has a fluorene skeleton and an aromatic diol that has a low glass-transition point when polymerized, and a method for producing the same.

Abstract: To provide a polycarbonate resin composition having a high Abbe's number, high strength and excellent stainability. Disclosed is a polycarbonate resin composition prepared by blending a polycarbonate resin (A) prepared by forming carbonate bonds in tricyclo[5.2.1.02,6]decanedimethanol with a diester or phosgene, and a weight-averaged molecular weight (Mw) of the polycarbonate resin (A) being equal to or more than 25,000, and a polycarbonate resin (B) prepared by reacting 2,2-bis(4-hydroxyphenyl)propane and phosgene, and weight-averaged molecular weight (Mw) of the polycarbonate resin (B) being equal to or more than 30,000, wherein a ratio thereof, 100×(A)/((A)+(B)), is from 1 to 99% by weight.

Abstract: To provide a polycarbonate resin composition excellent in low-birefringence and strength. Disclosed is a polycarbonate resin composition prepared by blending a polycarbonate resin (A) prepared by forming carbonate bonds in a 95-5% by mole of dihydroxy compound represented by formula (1) and a 5-95% by mole of dihydroxy compound represented by formula (2) with a diester carbonate, and a polycarbonate resin (B) prepared by forming carbonate bonds in dihydroxy compound represented by formula (3) with a diester carbonate or phosgene in a 45-85% ratio by weight of (100×(A))/((A)+(B)). (in the formula, R1 and R2 represent a hydrogen atom or methyl respectively.

Abstract: The polycarbonate resin of the present invention has a structural unit represented by general formula (A): (in formula (A), X is an alkylene group having 1 to 4 carbon atoms).

Abstract: Provided is a thermoplastic resin having a high refractive index, which is favorable as an optical material. Provided are a polyformal resin copolymer comprising a high refractive index diol that has a fluorene skeleton and an aromatic diol that has a low glass-transition point when polymerized, and a method for producing the same.

Abstract: According to the present invention, a polycarbonate resin having a repeat unit represented by the following formula (1) and a repeat unit represented by the following general formula (2), and an optical film using the same, can be provided. In the formula, Y is a cycloalkylene group having a carbon number of 4 through 20 or a structure represented by the following general formula (3). In the general formula (3), R1, R2, R3 and R4 are independently a hydrogen atom or a monovalent alkyl group having a carbon number of 1 through 5.

Abstract: A method for highly polymerizing an aromatic polycarbonate resin, which enables the increase in molecular weight of the aromatic polycarbonate resin satisfactorily while keeping good quality of the resin. An aromatic polycarbonate is linked to an aliphatic diol compound having a boiling point of 240° C. or higher (preferably in an amount of 0.01 to 1.0 mole per mole of the total amount of the terminal of the aromatic polycarbonate) through a transesterification reaction in the presence of a transesterification catalyst under reduced pressure conditions (preferably at a reduced pressure ranging from 13 kPaA (100 torr) to 0.01 kPaA (0.01 torr)), thereby increasing the molecular weight of the resulting molecule. The weight average molecular weight (Mw) of the aromatic polycarbonate after the transesterification reaction can be increased preferably by 5,000 or more compared to that of the aromatic polycarbonate before the transesterification reaction.

Abstract: The present invention provides a polycarbonate resin containing a structural unit represented by general formula (I). In formula (I), R's independently represent a halogen atom, an alkyl group having 1-9 carbon atoms, an aryl group having 6-12 carbon atoms, an alkenyl group having 2-5 carbon atoms, an alkoxy group having 1-5 carbon atoms, or an aralkyl group having 7-17 carbon atoms; n's independently mean the number of R's which substitute on the benzene ring and independently represent an integer of 0-4; Y represents an alkylene group having 1-4 carbon atoms; and p represents an integer of 0-4.

Abstract: This invention provides an examination method, an examination apparatus, and an examination program capable of performing the examination corresponding to the type or the like of the site to be examined and capable of reducing the examination time when examining the substrate. The X-ray is output from an X-ray source, and the X-ray that transmitted the substrate to be examined is photographed as an X-ray perspective image in an FPD (Flat Panel Detector). The photographing for generating the reconstruction data by X-ray CT is performed at the positions on the virtual circle having the optical axis of the X-ray source as an axis, similar to the photographing for generating the reconstruction data by tomosynthesis.

Abstract: A method for highly polymerizing an aromatic polycarbonate resin, which enables the increase in molecular weight of the aromatic polycarbonate resin satisfactorily while keeping good quality of the resin. An aromatic polycarbonate is linked to an aliphatic diol compound having a boiling point of 240° C. or higher (preferably in an amount of 0.01 to 1.0 mole per mole of the total amount of the terminal of the aromatic polycarbonate) through a transesterification reaction in the presence of a transesterification catalyst under reduced pressure conditions (preferably at a reduced pressure ranging from 13 kPaA (100 torr) to 0.01 kPaA (0.01 torr)), thereby increasing the molecular weight of the resulting molecule. The weight average molecular weight (Mw) of the aromatic polycarbonate after the transesterification reaction can be increased preferably by 5,000 or more compared to that of the aromatic polycarbonate before the transesterification reaction.

Abstract: Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 ?m, a light transmittance of not less than 85%, and an Nz factor of not less than 10.

Abstract: A polycarbonate resin having at least one terminal group which is represented by formula (1), and a resin composition and an optical material comprising the polycarbonate resin are disclosed. In the formula, R1-R9 each independently represent a hydrogen atom, halogen atom or an alkyl group. X1 represents a direct bond or alkylene group.

Abstract: An X-ray inspecting apparatus capable of high-speed inspection of a prescribed inspection area of an object of inspection is provided. The X-ray inspecting apparatus includes: a scanning X-ray source for outputting X-ray; an X-ray detector driving unit on which a plurality of X-ray detectors are mounted, and capable of driving the plurality of X-ray detectors independently; and an image acquisition control mechanism controlling acquisition of image data by X-ray detector driving unit and X-ray detectors. A scanning X-ray source emits X-ray while moving the X-ray focal point of the X-ray source to each of X-ray emission originating positions set for each X-ray detector such that the X-ray passes through a prescribed inspection area of an object of inspection and enters each X-ray detector. Image pick-up by some of the X-ray detectors and movement of other X-ray detectors to an image pick-up position are executed in parallel and alternately.

Abstract: To provide a polycarbonate resin composition having a high Abbe's number, high strength and excellent stainability. Disclosed is a polycarbonate resin composition prepared by blending a polycarbonate resin (A) prepared by forming carbonate bonds in tricyclo[5.2.1.02,6]decanedimethanol with a diester or phosgene, and a weight-averaged molecular weight (Mw) of the polycarbonate resin (A) being equal to or more than 25,000, and a polycarbonate resin (B) prepared by reacting 2,2-bis(4-hydroxyphenyl)propane and phosgene, and weight-averaged molecular weight (Mw) of the polycarbonate resin (B) being equal to or more than 30,000, wherein a ratio thereof, 100×(A)/((A)+(B)), is from 1 to 99% by weight.

Abstract: An X-ray inspection apparatus includes a scanning X-ray source for emitting an X-ray, an X-ray detector drive unit having a plurality of X-ray detectors mounted thereon and being capable of independently driving the plurality of X-ray detectors, and an image acquisition control mechanism for controlling the X-ray detector drive unit and acquisition of image data from the X-ray detectors. The scanning X-ray source emits an X-ray by moving an X-ray focal point position of the X-ray source to each of originating point positions of X-ray emission, which are set for the X-ray detectors such that X-rays are transmitted through a plurality of prescribed inspection areas of an inspection object and enter the X-ray detectors. Image pickup by the X-ray detector and movement of another X-ray detector are concurrently performed in an alternate manner. The image acquisition control mechanism acquires image data, and an operation unit reconstructs an image.

Abstract: To provide a polycarbonate resin composition excellent in low-birefringence and strength. Disclosed is a polycarbonate resin composition prepared by blending a polycarbonate resin (A) prepared by forming carbonate bonds in a 95-5% by mole of dihydroxy compound represented by formula (1) and a 5-95% by mole of dihydroxy compound represented by formula (2) with a diester carbonate, and a polycarbonate resin (B) prepared by forming carbonate bonds in dihydroxy compound represented by formula (3) with a diester carbonate or phosgene in a 45-85% ratio by weight of (100×(A))/((A)+(B)). (in the formula, R1 and R2 represent a hydrogen atom or methyl respectively.

Abstract: To provide a thermoplastic polymer composition excellent in molding. Disclosed is a thermoplastic polymer composition comprising A) a polycarbonate copolymer which is produced according to a melt method without adding any quencher, which comprises constitution units of (1) and (2), B) a mold release which is a partial ester formed of a C10-20 monovalent fatty acid and glycerol, and C) a hindered phenol antioxidant.

Abstract: To provide a polycarbonate resin which is excellent in transparency, hue and ultraviolet-resistance of the molded product, is excellent in retention-stability at a high temperature, and causes sufficiently-reduced amount of the dirt on the metal mold during molding. A polycarbonate resin composition comprising A) a polycarbonate resin which is produced according to a melt method without adding any quencher, which comprises a constitution unit derived from 9,9-bis (4-(2-hydroxy ethoxy)phenyl)fluorene and a constitution unit derived from bisphenol A, B) a benzotriazole ultraviolet absorber, C) a mold release which is a partial ester formed of a C10-20 monovalent fatty acid and glycerol, and D) a hindered phenol antioxidant.

Abstract: The present invention provides a light-transmitting electromagnetic wave-shielding material for use in displays or in-vehicle panels each having a polarizing plate or a retardation plate, wherein the light-transmitting electromagnetic wave-shielding material undergoes no generation of light interference fringes and is satisfactory in visibility even through sunglasses, goggles, glare-proof panels or glare-proof window materials having polarizing capability. By using unstretched light-transmitting organic polymer materials low in molecular orientation or small in molecular orientation unevenness as the base substrate of an electromagnetic wave-shielding layer, the light-transmitting electromagnetic wave-shielding material excellent in light interference fringe prevention capability can be obtained.

Abstract: The invention relates to a method for producing a thermoplastic resin, comprising using a composition at least comprising a fluorene-containing dihydroxy compound represented by the following formula (1) and a fluorene-containing hydroxy compound represented by the following formula (2) in an amount of from 0.5 parts by weight to 1.5 parts by weight relative to 100 parts by weight of the fluorene-containing dihydroxy compound of formula (1).