Hyundai Motor Company and Lotte Chemical Corporation | Date: 2014-09-08
The present invention provides a carbon fiber reinforced polypropylene resin composition with improved molding property. In particular, provided is a carbon fiber reinforced polypropylene resin composition with significantly improved molding property, tensile strength, flexural strength and the like by adding a modified polypropylene grafted with maleic anhydride as a compatibilizer to a polypropylene resin to reinforce the carbon fiber.
Lotte Chemical Corporation and ZBB Energy | Date: 2014-02-18
An improved chemical composition and manufacturing process for a battery electrode are disclosed. This battery electrode may be later arranged in flowing electrolyte battery cells. Battery electrode material formulation may include a mixture of polypropylene, carbon black, graphite, bonding additives and other substances in different concentrations. The inclusion of graphite may reduce the amount of carbon black in the mixture, thereby reducing the swelling of the battery electrode in the presence of bromine. Moreover, material formulation may reduce warpage caused by the swelling of electrode material, and may additionally improve the performance and properties of flowing electrolyte batteries. An extrusion molding process may be employed in order to fabricate the disclosed battery electrode.
Lotte Chemical Corporation | Date: 2014-11-28
A bumper beam assembly system includes a bumper beam and a stay connecting the bumper beam to a vehicle, wherein the stay is replaceably coupled to both sides of the bumper beam to occupy a corner portion of the bumper beam. The bucket structure includes a frame assembly part that is coupled to a frame, a first sidewall disposed on one side of the frame assembly part to constitute the corner portion of the bumper beam, a second sidewall disposed on the other side of the frame, and a bumper beam assembly part extending from the frame assembly part, the first sidewall, and the second sidewall in a flange shape and coupled to the bumper beam.
Hyundai Motor Company, Kia Motors and Lotte Chemical Corporation | Date: 2014-11-28
A polyolefin resin molded product includes a base which comprises at least one kind of polypropylene resin having a crystallization temperature of 112 C. to 150 C.; low density polyethylene; an inorganic filler; and an olefin polymer comprising 2 wt % to 10 wt % of a reactive functional group bonded to a main chain or an end thereof and having a diameter of 0.5 m to 200 m. The base has foam cells having an average diameter of 20 m to 50 m are distributed on thereon.
Lotte Chemical Corporation | Date: 2015-10-23
Disclosed are a composition for 3D printer filaments satisfying requirements as a 3D printing material and a filament for a 3D printer manufactured using the same. A composition for 3D printer filaments including a polymer base containing atactic polypropylene having a weight average molecular weight of 50,000 to 1,000,000, a density of 0.8 to 0.9 g/ml, and isotacticity (Pentad I.I, mmmm) of 5 to 20%. The melting index (210 C., 2.16 kg) of the polymer base is 0.5-30 g/10 minutes, and a filament for a 3D printer manufactured using the same are provided.