Lotte Chemical Corporation

Hanmi Science Co., Ltd.

Sun Young Jung

Kyung Hoon Kim

Dong Hoon Lee

Ji Eun Lee

Gwan Sun Lee

Maeng Sup Kim

Min Suk Jung

Young Kil Chang

Jin Hee Kim

Gha Seung Park

Jung Hee Han

Tae Jin Choi

Hyo Jeong Bang

Jae Heon Lee

Chang Kyu Son

Hee Won Cho

Young Kii Chang

Disclosed are a polyolefin resin composition usable in manufacturing a single-layered dry porous membrane having excellent meltdown and shutdown properties, and a porous membrane using the polyolefin resin composition. The present invention provides a polyolefin resin composition for a porous membrane, wherein the polyolefin resin composition includes 30 wt % to 70 wt % of a high-density polyethylene having a melt flow index (190° C., 2.16 kg load) of 0.1 g/10 min to 5 g/10 min, a crystallization temperature of 115° C. to 125° C., and a degree of crystallinity of 75% or greater, and 30 wt % to 70 wt % of a high-crystallinity polypropylene having a melt flow index (230° C., 2.16 kg load) of 5 g/10 min to 20 g/10 min.

Polyolefin resin composition for porous film

Disclosed herein is a resin composition for injection-molding in which an ethylene-based resin is melt-mixed to be excellent in ductile property and impact property, excellent in environmental stress crack resistance, and low in an overall migration, and thus may be widely used as a food and drug container or a stopper. The present invention provides a resin composition for injection-molding formed by melt-mixing 80-90 wt % of a linear low density polyethylene having a melt flow index of 15-30 dg/min (190&#xb0; C., 2.16 kg) and 10-20 wt % of an ethylene-alpha-olefin copolymer resin having a melt flow index of 10-20 wt %.

Polyethylene resin composition for injection-molding

Disclosed are a novel, high-yield method for preparing entecavir and intermediates used therein.

Method for preparing entecavir and intermediate used therein

Growing community of inventors

Daejeon, South Korea

Sun Young Jung