Toray Industries, Inc.

Mitsubishi Electric Corporation

Shinichiro Ochiai

Sadayuki Kobayashi

Shota Suzuki

Akiko Tanaka

Daisuke Sato

Akiyoshi Tamai

Tatsuya Takamoto

A hollow molded article having a joining site where two or more split objects are welded by plastic welding and comes into contact with pressurized hydrogen, wherein an average spherulite size in a portion which is 500 &#x3bc;m deep inside from a surface of the hollow molded article is 20 &#x3bc;m or less, and a tensile strength of a test piece containing the joining site of the hollow molded article is 80% or more based on a tensile strength of a test piece not containing the joining site of the hollow molded article.

Hollow molded article and method of producing the same

A polyamide resin composition for an extrusion-molded article exposed to high-pressure hydrogen gas contains: 70 to 99 parts by weight of a polyamide 6 resin (A); 1 to 30 parts by weight of an impact modifier (B); and 0.005 to 1 parts by weight of a metal halide (C) with respect to a total of 100 parts by weight of the polyamide 6 resin (A) and the impact modifier (B). The polyamide resin composition has a melt tension of 20 mN or more when measured at 260&#xb0; C. and a take-up speed at strand break of 30 m/min or more when measured at 260&#xb0; C.

Polyamide resin composition for extrusion molded products exposed to high-pressure hydrogen, and extrusion molded product

A polyamide resin composition for a blow-molded article exposed to high-pressure hydrogen gas contains: 70 to 99 parts by weight of a polyamide 6 resin (A); 1 to 30 parts by weight of an impact modifier (B); and 0.005 to 1 parts by weight of a metal halide (C) with respect to a total of 100 parts by weight of the polyamide 6 resin (A) and the impact modifier (B). The polyamide resin composition has a melt tension of 20 mN or more when measured at 260&#xb0; C. and a take-up speed at strand break of 50 m/min or more when measured at 260&#xb0; C.

Polyamide resin composition for blow-molded products exposed to high-pressure hydrogen, and blow-molded product

A polyamide resin composition for a molded article exposed to high-pressure hydrogen contains a polyamide 6 resin (A) and a polyamide resin (B) having a melting point, as determined by DSC, that is not higher than a melting point of the polyamide 6 resin (A) +20&#xb0; C. and a cooling crystallization temperature, as determined by DSC, that is higher than a cooling crystallization temperature of the polyamide 6 resin (A), the polyamide resin (B) present in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the polyamide 6 resin (A). The polyamide resin composition can provide a molded article having excellent weld properties and is less likely to suffer failure points despite repeated charging and discharging of high-pressure hydrogen.

Polyamide resin composition for molded article exposed to high-pressure hydrogen and molded article made of the same

An analog conversion device includes an analog-to-digital (A/D) converter; a shared memory that has an A/D conversion-value storage area for storing the converted digital value and a log storage area for logging a digital value that is stored in the A/D conversion-value storage area and that can be read and accessed from a central processing unit (CPU) that controls an entire programmable controller; a logging execution unit that stores the digital value stored in the A/D conversion-value storage area in the log storage area as logging data; a fixed-number logging detection unit that monitors whether the number of the logging data to be stored in the log storage area has reached a predetermined number since the last interrupt generation request has been made; and an interrupt generation unit that makes an interrupt generation request to the CPU when the number of the logging data has reached the predetermined number.

Analog conversion device and programmable controller system

A process of producing a polymer alloy includes melt-kneading at least two incompatible crystalline resins in a supercooled state by chaotic mixing using a twin-screw extruder. A polymer alloy obtained by melt-kneading at least two incompatible crystalline resins has a dispersed structure that particles dispersed in the polymer alloy have an average particle size of 0.001 to 1 &#x3bc;m, wherein in scattering measurement, (a) a peak half-width in a spectrum obtained by plotting scattering intensity against the wavenumber of scattered light and (b) a maximum wavenumber of the peak satisfy: 0&#x3c;(a)/(b)&#x2266;1.5.

Process for producing polymer alloy, polymer alloy, and molded article

A polylactic acid stereocomplex has a crystal melting peak temperature of 215&#xb0; C. or more, wherein the crystal melting peak is a single peak and has a peak half width of 12&#xb0; C. or less, and a crystal melting enthalpy of 60 J/g or more as measured by differential scanning calorimetry. The polylactic acid stereocomplex has a high melting point, good heat resistance, and a high level of mechanical properties and chemical resistance. The method for producing a polylactic acid stereocomplex includes chaotic mixing of 30 to 70 parts by weight of (A) poly-L-lactic acid and 30 to 70 parts by weight of (B) poly-D-lactic acid based on 100 parts by weight of the total of (A) poly-L-lactic acid and (B) poly-D-lactic acid.

Polylactic acid stereocomplex, method for production thereof, and nucleating agent for polylactic acid resin

At least two or more components of thermoplastic resins are compounded by chaotic mixing to form a polymer alloy with a sophisticatedly controlled dispersed phase structure. In the polymer alloy, a dispersed phase having a non-periodic structure with a correlation length of 0.001 &#x3bc;m to 0.5 &#x3bc;m and having a compactness (C) of 0.05&#x2266;(C)&#x2266;0.8, wherein the compactness (C) can form a molded product that also has transparency while maintaining the original good heat resistance or mechanical properties of the resins blended.

Polymer alloy, process for producing same, and molded article

The present invention is a polycarbonate resin composition containing a polycarbonate resin and comprising at least two resins contained as components, wherein the intensity ratio of the absorption peak appearing in a range of 2933&#xb1;5 cmto the absorption peak appearing in a range of 2965&#xb1;5 cmis 0.43 or more. The polymer alloy of this invention can be used to obtain a material with excellent impact resistance.

Thermoplastic resin composition and molded article

A styrene-based resin composition that can be effectively used as a structural material owing to its excellent mechanical properties and also as a functional material owing to its excellent regularity and a method for manufacturing a styrene-based resin composition structurally controllable in nanometer order to micrometer order. The styrene-based resin composition includes (A) a styrene-based resin, (B) a thermoplastic resin other than a styrene-based resin, (c1) a modified styrene-based polymer and (c2) a polycarbonate-based graft polymer.

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Nagoya, Japan

Shinichiro Ochiai