Abstract: There is provided a polystyrene resin composition including: (A) a polyamide; (B) a polystyrene resin having a syndiotactic structure; (C) a compatibilizer which has a polar group reactive with the polyamide (A), and which is compatible with the polystyrene resin (B); (D) a particular hindered phenol compound; and (E) an inorganic filler, wherein the amount of the polystyrene resin (B) is 10.0 to 30.0% by weight, and the amount of the hindered phenol compound (D) is 0.3 to 1.0% by weight per 100% by weight of the total amount of the components (A) to (E).

Abstract: There is provided a polystyrene resin composition including: (A) a polyamide; (B) a polystyrene resin having a syndiotactic structure; (C) a compatibilizer which has a polar group reactive with the polyamide (A), and which is compatible with the polystyrene resin (B); (D) a particular hindered phenol compound; and (E) an inorganic filler, wherein the amount of the polystyrene resin (B) is 10.0 to 30.0% by weight, and the amount of the hindered phenol compound (D) is 0.3 to 1.0% by weight per 100% by weight of the total amount of the components (A) to (E).

Abstract: A resin metal composite body including a resin member containing a resin molding material containing a resin mixture (a1) and an inorganic filler (a2), and a metal member, and a test specimen of the resin mixture (a1) has a stress-strain curve in a tensile test according to ISO 527-1,2:2012 having a yield point, and a tensile yield stress of 25 MPa or more.

Abstract: A resin metal composite body including a resin member and a metal member, the resin member contains a resin mixture containing a styrene-based resin composition, and a glass filler, the glass filler being 13.0% by mass or more and 37.0% by mass or less based on the resin mixture and the glass filler as 100% by mass, and the styrene-based resin composition contains a styrene-based polymer having a syndiotactic structure, a rubber-like elastomer, and an acid-modified polyphenylene ether, a content of the styrene-based polymer of 62.0% by mass or more and 85.0% by mass or less, a content of the rubber-like elastomer of 12.0% by mass or more and 37.0% by mass or less, and a content of the acid-modified polyphenylene ether of 0.1% by mass or more and 3.9% by mass or less, based on the styrene-based resin composition as 100% by mass.

Abstract: The present invention provides a screening mechanism for an optical fiber fusion-splicer including two holder tables for holding two optical fibers to be fusion-spliced in an opposed relationship, a connection table disposed between the holder tables and having guide grooves into which tip end portions, from which coatings are removed, of the two optical fibers held by the holder tables are fitted, and fiber clamps adapted to press the tip end portions of the optical fibers into the guide grooves, the screening mechanism comprising a sensor capable of detecting the fact that the pressing of the tip end portions of the optical fibers effected by the fiber clamps is released, and wherein, when the releasing is detected by the sensor, one or both of the holder tables are automatically shifted in directions opposite to optical fiber abutting directions to pull the optical fibers, thereby effect screening.

Abstract: The invention relates to a styrene resin material, especially a styrene-based resin composition having good high-speed castability and good spreadability and favorable to extrusion molding lines. Of the styrene-based resin material, the product of the melt index (MI, g/10 min) and the melt tension (MT, g) measured under a specific condition is at least 20. Concretely, for example, it is a styrene-based resin composition comprising (A) from 35 to 95% by weight of a styrenic polymer having a syndiotactic structure, (B) from 5 to 50% by weight of a specific polyethylenic resin, and (C) from 0 to 15% by weight (including 0) of a specific styrene-olefin copolymer.

Abstract: A vertically-placed TV camera to be disposed such that the direction of scanning lines thereof is orthogonal to the optical axis of an optical fiber or the like to be connected and a laterally-placed TV camera to be disposed such that the direction of the scanning lines thereof is parallel to the same optical axis are prepared, so that images from those TV cameras can be displayed on a TV monitor. Further, an image processing portion capable of outputting an image from the TV cameras to the TV monitor and processing the image from the TV camera and outputting desired information about the optical fibers to be connected is provided, and each of the aforementioned TV cameras is provided with an optical system. The optical system of the TV camera has a higher magnification than that of the TV camera. The image processing portion turns an image from the TV camera at 90° and matches an image from the TV camera therewith in terms of the scanning direction and outputs the image to the TV monitor.

Abstract: The present invention provides a screening mechanism for an optical fiber fusion-splicer including two holder tables for holding two optical fibers to be fusion-spliced in an opposed relationship, a connection table disposed between the holder tables and having guide grooves into which tip end portions, from which coatings are removed, of the two optical fibers held by the holder tables are fitted, and fiber clamps capable of rotating from their waiting positions to positions above the guide grooves and adapted to press the tip end portions of the optical fibers into the guide grooves, the screening mechanism comprising a sensor capable of detecting the fact that the pressing of the tip end portions of the optical fibers effected by the fiber clamps is released, and wherein, when the releasing is detected by the sensor, one or both of the holder tables are automatically shifted in directions opposite to optical fiber abutting directions to pull the optical fibers, thereby effect screening.

Abstract: Provided is a lubricant film having the advantages of high-temperature lubricity, environmental adaptation and workability. At least the surface layer of the film is of a styrenic polymer essentially having a syndiotactic structure or of a resin composition that comprises such a styrenic polymer essentially having a syndiotactic structure, and the layer has a degree of crystallinity of at least 30%, a film impact of at least 2000 J/m and a wettability index of at most 36. The film is favorable to process films.

Abstract: There is disclosed a styrenic resin composition which comprises 70 to 99.9% by weight of an (A) styrenic polymer having a high degree of syndiotactic configuration and 0.1 to 30% by weight of a (B) organic compound having a --NH-- group and a molecular weight of less than 10,000.According to the present invention, there is obtained a styrenic resin composition having a syndiotactic configuration which is improved in electrical insulating properties, especially in withstand voltage against direct current.

Abstract: There are disclosed a polystyrenic stretched film which comprises a styrenic resin composition containing 70 to 100% by weight of a styrenic polymer having a high degree of the syndiotactic configuration, has a crystallinity of 35% or more, and contains 200 ppm or less of residual monomer components and 1000 or less of particles of foreign substances having a size of 9 .mu.m or larger in 1 cm.sup.3, and a process for producing the polystyrenic stretched film which comprises extruding the styrenic resin composition in a specific amount in combination with melt filtration of the composition, cooling the extruded composition, biaxially stretching the cooled composition, and heat treating the stretched composition under the condition that the degree of heat treatment is 10.sup.-1 or more and less than 5.times.10.sup.2.

Abstract: The present invention relates to a styrenic resin composition which comprises 90 to 99.99% by weight of a styrenic polymer having a high degree of syndiotctic configuration (SPS) and 0.01 to 10% by weight of a spherical aluminosilicate having pH in the range of 5 to 11; a polystyrene oriented film which comprises the above styrenic resin composition molded into an oriented film; a styrenic resin composition which comprises 99.2 to 99.95% by weight of a styrenic polymer having a high degree of syndiotactic configuration and 0.05 to 0.8% by weight of a spherical regular elastomer having an average grain size in the range of 0.1 to 3 .mu.m, and which has a melt index at 300.degree. C. under 2.16 kg load being in the range of 1 to 50; and a polystyrene oriented film which comprises the above styrenic resin composition molded into an oriented film.

Abstract: There are disclosed a polystyrenic stretched film which comprises a styrenic resin composition containing 70 to 100% by weight of a styrenic polymer having a high degree of the syndiotactic configuration, and has a crystallinity of 35% or more, a dispersion of thickness of 8% or less, and a dispersion of birefringence in 1000 cm.sup.2 of 20% or less, and a process for producing the polystyrenic stretched film. There are also disclosed a photographic film, a process film for printing, and a film for over-head projectors comprising the polystyrenic stretched film.According to the present invention, a stretched film having excellent uniformity of thickness and showing little deformation such as warp, striation, and waviness after heating can be provided.

Abstract: A styrenic polymer having a highly syndiotactic configuration (SPS) is herein disclosed in which the weight-average molecular weight of the styrenic polymer is in the range of 1.times.10.sup.4 to 2.times.10.sup.6 and in which the weight fraction of an extract extracted with methylene chloride from a gel obtained by dissolving the styrenic polymer in 1,2,4-trichlorobenzene and then cooling the solution is 10% by weight or less, and a molded article comprising the SPS is also disclosed.

Abstract: There are disclosed a styrenic resin molding having a high crystallinity and excellent in heat resistance, solvent resistance and transparency, and a process for producing the same. Specifically the present invention provides an orientable or thermoformable non-oriented styrenic resin molding having a crystallinity of 25% or more, a spherulite radius of 10 .mu.m or less and a haze of 5% or less and comprising a styrenic polymer having a high degree of syndiotactic configuration; a process for producing the above non-oriented molding; a transparent styrenic-resin molding having a crystallinity of 30% or more which is obtained by thermoforming or orienting the above non-oriented molding at an expansion ratio by area of 1.2 or more; and the process for producing the same.

Abstract: A rear stop type lens with highly corrected comatic flare is constituted of one convex meniscus lens, two concave lenses and one biconvex lens arranged in the order mentioned from the object side.