Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

Abstract: The present invention relates to an energy delivery device for expanding a tubular organ, the energy delivering device delivering energy to a tubular organ by an optical fiber for treatment and expanding a tissue in the tubular organ, the device comprising a light diffusing optical fiber connected between a laser device and a fixing tip and delivering light; a contraction unit having one end connected to the fixing tip and arranged in a circumference of an end of the light diffusing optical fiber; a movement unit closely adhered to the other end of the contraction unit, in which the light diffusing optical fiber is inserted; and an expansion adjustment unit adjusting a moving distance of the movement unit and expanding the contraction unit in a radial direction while contracting the contraction unit.

Abstract: The present disclosure provides a masterbatch prepared by melting and extruding a mixture including a polyolefin resin, wherein the mixture includes 10 to 89% by weight of a polyolefin resin, 5 to 30% by weight of a chemical blowing agent, 5 to 30% by weight of thermally expandable microcapsule, and 1 to 30% by weight of an inorganic filler. In addition, the present disclosure provides a polyolefin resin composition with excellent expandability and direct metallizing property, which includes the foamable masterbatch. A molded article obtained by foam injection molding of the polyolefin resin composition according to one form of the present disclosure can be useful in satisfying uniform distribution and mechanical properties of foamed cells so that the molded article can be widely applied to parts for automobile interior/exterior materials, and also improving fuel efficiency of automobiles by achieving lightweight parts.

Abstract: The present invention relates to a polypropylene-based resin composition including: (A) a polypropylene resin in an amount of about 40 to 90 wt %, (B) a metal hydroxide in an amount of about 1 to about 25 wt %, (C) an inorganic filler in an amount of about 5 to about 15 wt %, and (D) a polyolefin-based elastomer in an amount of about 0 to about 20 wt %, and a method for manufacturing the polypropylene-based resin composition. Accordingly, the polypropylene-based resin composition may be applied widely to a molded product of interior or exterior parts of a vehicle because a polypropylene resin composition containing a metal hydroxide may be used to manufacture interior and exterior products of a vehicle, thereby achieving weight reduction due to excellent foaming quality during the foaming injection and improved mechanical properties.

Abstract: The present invention relates to a polypropylene-based resin composition including: (A) a polypropylene resin in an amount of about 40 to 90 wt %, (B) a metal hydroxide in an amount of about 1 to about 25 wt %, (C) an inorganic filler in an amount of about 5 to about 15 wt %, and (D) a polyolefin-based elastomer in an amount of about 0 to about 20 wt %, and a method for manufacturing the polypropylene-based resin composition. Accordingly, the polypropylene-based resin composition may be applied widely to a molded product of interior or exterior parts of a vehicle because a polypropylene resin composition containing a metal hydroxide may be used to manufacture interior and exterior products of a vehicle, thereby achieving weight reduction due to excellent foaming quality during the foaming injection and improved mechanical properties.