Yuseong gu, South Korea
Yuseong gu, South Korea

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The present invention relates to a thermoplastic elastomer composition and a molded article manufactured therefrom. The thermoplastic elastomer composition according to the present invention has advanced vibration insulation and thermal resistance. Thus, the thermoplastic elastomer composition may exhibit excellent vibration insulation in the vibration frequency area that a human can feel, and may exhibit excellent mechanical properties even if exposed to a high temperature environment for a long time. A molded article manufactured using such a thermoplastic elastomer composition may be suitably used in various fields such as various daily supplies, medical supplies, parts for an automobile, interior and exterior materials for an automobile, interior and exterior materials for a building, and the like.


Patent
Lotte Chemical Corporation | Date: 2017-05-17

The present invention relates to a method for preparing a polyolefin resin composition including the step of mixing a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, a polyolefin resin composition including a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, and a polyolefin resin molded article including an extrusion molded article of the polyolefin resin composition.


Patent
Lotte Chemical Corporation | Date: 2017-06-07

The present invention relates to a continuous fiber composite including: a continuous fiber layer; a modified polyolefin layer; and a polyolefin resin layer, and a method for producing the same.


Patent
Lotte Chemical Corporation | Date: 2017-06-07

Disclosed is a stack welding apparatus for a redox flow battery. The stack welding apparatus for forming a stack by vibration-welding unit cells including an electrode flow frame and a membrane flow frame of a zinc-bromine flow battery including: i) a lower die supporting at least one unit cell and installed to be movable in a vertical direction; ii) an upper die disposed above the lower die and pressurizing the at least one unit cell as the lower die is lifted; and iii) a vibration source applying vibrations to the upper die to vibration-weld the at least one unit cell, wherein a plurality of divided plates are installed and fixed to bases of the lower die and the upper die corresponding to each other, and a thickness adjustment thin plate for adjusting a thickness deviation of the at least one unit cell is installed between at least one divided plate and one of the bases.


Patent
Lotte Chemical Corporation | Date: 2016-09-14

The present disclosure relate to a method for operating a redox flow battery, which includes the steps of discharging the redox flow battery having an anode electrolyte and a cathode electrolyte when a volume difference between the anode electrolyte and the cathode electrolyte is within 20 % of a total volume of the anode electrolyte and the cathode electrolyte, while maintaining an open circuit voltage of lower than 1.3 V/cell, and moving the anode electrolyte and/or the cathode electrolyte so that the volume difference is 2 % or less between the anode electrolyte and the cathode electrolyte in the redox flow battery after the discharging.


Provided is an aliphatic polycarbonate-co-aromatic polyester with long-chain branches. The copolymer includes repeating units represented by -OAO- and Z(O-)_(a), which are linked via carbonyl (-C(O)-) and -C(O)YC(O)- as linkers. Also provided is an aliphatic copolycarbonate including repeating units represented by -OAO- and Z(O-)_(a), which are linked via carbonyl (-C(O)-) linkers. The aliphatic copolycarbonate has a weight average molecular weight of 30,000 or more.


Disclosed are a polycarbonate resin composition as a polycarbonate material for medical use having yellowing resistant property with respect to the irradiation of gamma-radiation, which exhibits extremely little yellowing during sterilizing using the gamma-radiation, maintains transparency and has no mechanical change, and a molded article using the same. The present invention provides a polycarbonate resin composition including a polycarbonate resin, a thioether-based stabilizer and an amide-based stabilizer, and a molded article using the same.


Provided are a polyurethane resin composition for a hollow fiber membrane potting agent, and a hollow fiber membrane module, and more particularly, a polyurethane resin composition for a hollow fiber membrane potting agent, which includes a polyurethane resin and a hydrophilic additive to have excellent resistance to internal/external pressure, and also to have excellent sealing performance, antifouling property, etc., and a hollow fiber membrane module including a cured product thereof.


Patent
Lotte Chemical Corporation | Date: 2016-03-30

The present invention relates to a method for separating aromatic compounds contained in naphtha which includes an extraction step of contacting specific ionic liquids and naphtha and a step of separating the aromatic compounds from naphtha contacted with the ionic liquids.


Provided are an ethanol dehydration catalyst having a high ethylene yield even at a low temperature region, as an ethanol dehydration catalyst for converting a feedstock including anhydrous ethanol or hydrous ethanol to ethylene, and a method of preparing ethylene by using the same. In the ethanol dehydration catalyst for converting a feedstock including anhydrous ethanol or hydrous ethanol to ethylene of the present invention, the catalyst includes 0.1 wt% to 0.5 wt% of lanthanum (La) or 0.05 wt% to 1 wt% of gallium (Ga) in ZSM-5.

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