Abstract: A method of recycling a composite container for a high-pressure gas is carried out so as to recover carbon fibers in a long fiber state, using a recovering apparatus that can separate the inner and outer containers of a composite container for a high-pressure gas such as a hydrogen tank and take carbon fibers out of the outer container without cutting it in order to recycle the composite container, in order to increase the degree of recovery of carbon fibers and improve the efficiency of recycling.

Abstract: Disclosed is a method for manufacturing a soundproofing board part having improved sound absorption performance. The soundproofing board part is manufactured by using, as a material, a recycled soundproofing material which contains a polyurethane foam having excellent sound absorption performance and impact resilience during the press molding; and by producing a sound absorption part on the back surface of the soundproofing board part through a remolding processing method. Also disclosed is a soundproofing board part manufactured by the method. Accordingly, sound absorption performance of the soundproofing board part is improved by about 20% or greater, manufacturing cost thereof may be reduced by recycled resources utilizing waste sheets, and manufacturing process may be simplified compared the related art.

Abstract: The present invention provides a sound-absorbing material with excellent sound-absorbing performance and a method for manufacturing thereof. More particularly, it relates to a sound-absorbing material, which can improve sound absorption coefficient and transmission loss by forming large surface area and air layer, so as to induce viscosity loss of incident sound energy, may make light-weight design possible because it can express excellent sound-absorbing performance even using reduced amount of fiber, and can improve sound-absorbing performance by using binder fiber having rebound resilience, so as to maintain enough strength between fiber and also to maximize viscosity loss of sound energy transmitted to fiber structure; and a method for manufacturing thereof.

Abstract: Disclosed are a sound-absorbing material with improved sound-absorbing performance and a method for manufacturing the sound-absorbing material. The sound-absorbing material may improve sound absorption coefficient and transmission loss by forming large surface area and air layer, so as to induce viscosity loss of incident sound energy, and may provide light-weight design of a sound absorbing part or material since sound-absorbing performance may be substantially improved using reduced amount of fiber. Further, the sound-absorbing material may improve sound-absorbing performance by using binder fiber having rebound resilience, so as to maintain enough strength between fibers and also to maximize viscosity loss of sound energy transmitted to fiber structure.

Abstract: Disclosed is a highly heat resistant sound absorbing material for a vehicle capable of maintaining a shape even at high temperatures of about 200° C. or above and which satisfies UL 94V-0 flame retardancy. More particularly, the a highly heat resistant sound absorbing material includes a fiber material having a limiting oxygen index (LOI) of at least about 25% and capable of maintaining a shape at a temperature of about 200° C. or above, and a thermosetting binder resin capable of maintaining a shape at a temperature of about 200° C., wherein the fiber material and thermosetting binder resin are provided at a specific proportion.

Abstract: Disclosed is a highly heat resistant sound absorbing material for a vehicle capable of maintaining a shape even at high temperatures of about 200° C. or above and which satisfies UL 94V-0 flame retardancy. More particularly, the a highly heat resistant sound absorbing material includes a fiber material having a limiting oxygen index (LOI) of at least about 25% and capable of maintaining a shape at a temperature of about 200° C. or above, and a thermosetting binder resin capable of maintaining a shape at a temperature of about 200° C., wherein the fiber material and thermosetting binder resin are provided at a specific proportion.

Abstract: Disclosed is a system and method for operating a fuel cell system, which improves durability of a fuel cell stack by purging oxygen diffusing into an air electrode of the fuel cell stack while the fuel cell vehicle is parking. That is, the present invention provides a system and method for operating a fuel cell system, which prevents an interface between oxygen and hydrogen from forming at an anode by periodically supplying hydrogen to a cathode to purge oxygen when the oxygen concentration is greater than a predetermined level to prevent oxygen in the air from diffusing into the cathode while parking the fuel cell vehicle, thus preventing durability of a membrane electrode assembly of a fuel cell stack from deteriorating.

Abstract: Disclosed is a tufted carpet for a vehicle. The tufted carpet for the vehicle is manufactured by implanting a spun yarn into a base fabric, wherein the spun yarn is formed from a material mixture of about 85 wt % to about 95 wt % polyethylene terephthalate (PET) and about 5 to about 15 wt % polytrimethylene terephthalate (PTT).

Abstract: Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.

Abstract: Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.

Abstract: The present invention provides a polyketone composition having about 40˜90 wt % of polyketone, about 5˜40 wt % of polyamide, and about 5˜20 wt % of modified rubber. The composition of the present invention greatly improves the impact resistance of polyketone, which has increased heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance or the like, and thus may be widely applied in various industrial fields, such as automotive parts including wheel covers, wheel caps, fuel filler necks, fuel tanks, fuel tubes, center fascias, door handles, roof rack covers, gear, junction boxes, connectors, seat backs or the like, electric/electronic parts, and household items, thereby providing durability of the parts and price competition.

Abstract: The present invention provides a polyketone composition having about 40˜90 wt % of polyketone, about 5˜40 wt % of polyamide, and about 5˜20 wt % of modified rubber. The composition of the present invention greatly improves the impact resistance of polyketone, which has increased heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance or the like, and thus may be widely applied in various industrial fields, such as automotive parts including wheel covers, wheel caps, fuel filler necks, fuel tanks, fuel tubes, center fascias, door handles, roof rack covers, gear, junction boxes, connectors, seat backs or the like, electric/electronic parts, and household items, thereby providing durability of the parts and price competition.

Abstract: The present invention provides a low-noise plastic intercooler pipe. In preferred embodiments, the present invention preferably provides a low-noise plastic intercooler pipe having a multi-layered structure including: a skin layer including a thermoplastic etherester elastomer (TEEE) and a soundproof core layer including glass bubbles.

Abstract: The present invention provides a low-noise plastic intercooler pipe. In preferred embodiments, the present invention preferably provides a low-noise plastic intercooler pipe having a multi-layered structure including: a skin layer including a thermoplastic etherester elastomer (TEEE) and a soundproof core layer including glass bubbles.

Abstract: A polyolefin resin composition suitable for use in a wheel cover of an automobile including a high-crystalline olefin resin, a polyolefin based elastomer, and an inorganic filler chosen from glass beads coated with a polypropylene grafted with unsaturated carbonic acid or its anhydride and barium sulfate, which is excellent in rigidity, impact strength, heat resistance, mechanical strength, moldability during injection molding, coatability, and appearance without protuberance on the welds and thus suitable for a wheel cover of an automobile.

Abstract: The present invention relates to a polypropylene resin composition and more particularly, to the polypropylene resin composition comprising: (A) a propylene polymer comprising a propylene-ethylene copolymer having a certain limit viscosity alone and/or a propylene homopolymer having a certain pentad fraction (% mmmm); (B) an ethylene-&agr;-olefin copolymer rubber comprising ethylene-propylene copolymer rubber and ethylene-&agr;-olefin copolymer; (C) a styrene copolymer rubber; (D) a polypropylene modified with polar group-containing resin or a polyolefin polyol; and (E) an inorganic filler.

Abstract: The present invention relates to a polyolefin-based composite resin composition having excellent dimensional stability due to low mold shrinkage, low linear thermal expansion coefficient and low heat sag as well as having excellent mechanical strength, impact resistance, heat resistance, injection molding plasticity and surface smoothness of a product. The composition includes: 30-80% by weight of a crystalline ethylene-propylene copolymer; 5-40% by weight of an ethylene-&agr;-olefin copolymer; 5-40% by weight of an inorganic fortifier; and additives.

Abstract: A polyolefin resin composition suitable for use in a wheel cover of an automobile including a high-crystalline olefin resin, a polyolefin based elastomer, and an inorganic filler chosen from glass beads coated with a polypropylene grafted with unsaturated carbonic acid or its anhydride and barium sulfate, which is excellent in rigidity, impact strength, heat resistance, mechanical strength, moldability during injection molding, coatability, and appearance without protuberance on the welds and thus suitable for a wheel cover of an automobile.

Abstract: The present invention relates to a polypropylene resin composition and more particularly, to the polypropylene resin composition comprising: (A) a propylene polymer comprising a propylene-ethylene copolymer having a certain limit viscosity alone and/or a propylene homopolymer having a certain pentad fraction (%mmmm); (B) an ethylene-&agr;-olefin copolymer rubber comprising ethylene-propylene copolymer rubber and ethylene-&agr;-olefin copolymer; (C) a styrene copolymer rubber; (D) a polypropylene modified with polar group-containing resin or a polyolefin polyol; and (E) an inorganic filler.

Abstract: The present invention relates to a polyolefin-based composite resin composition having excellent dimensional stability due to low mold shrinkage, low linear thermal expansion coefficient and low heat sag as well as having excellent mechanical strength, impact resistance, heat resistance, injection molding plasticity and surface smoothness of a product. The composition includes: 30-80% by weight of a crystalline ethylene-propylene copolymer; 5-40% by weight of an ethylene-&agr;-olefin copolymer; 5-40% by weight of an inorganic fortifier; and additives.