Lg Chem, Ltd

Lg Chemical Ltd.

Lucky Limited

Toray Battery Seperator Film Co., Ltd.

Toray Battery Separator Film Co., Ltd.

Jin-Nyoung Yoo

Yeong-Rae Chang

Jong-Hun Kim

Sang-Young Lee

Pil-Kyu Park

Su-Jin Yoon

In-Chul Kim

Myung-Man Kim

Chang-Hong Lee

Young-Min Kim

Dae-Young Kim

Jong-Kee Yeo

Dong-Ok Kim

A separator includes a non-woven fabric substrate having pores, fine thermoplastic powder located inside the pores of the non-woven fabric substrate, and a porous coating layer disposed on at least one surface of the non-woven fabric substrate. The fine thermoplastic powder has an average diameter smaller than that of the pores and a melting point lower than the melting or decomposition point of the non-woven fabric substrate. The porous coating layer includes a mixture of inorganic particles and a binder polymer whose melting point is higher than the melting or decomposition point of the fine thermoplastic powder. In the porous coating layer, the inorganic particles are fixedly connected to each other by the binder polymer and the pores are formed by interstitial volumes between the inorganic particles. Previous filling of the large pores of the non-woven fabric substrate with the fine thermoplastic powder makes the porous coating layer uniform.

Separator including porous coating layer, method for manufacturing the separator and electrochemical device including the separator

Process for producing thermoplastic resins having high impact strength

Process for preparing deodorized resin for dry toner

Polymeric gloss modifiers, are prepared by forming polymer latices of a core/shell structure or a multi-layered structure, and coagulating and interparticle crosslinking the polymer latices. Said modifiers are used in preparing a low gloss thermoplastic resin compound.

Processes for preparing polymeric gloss modifiers and thermoplastic

Process for preparing a binder resin useful in electrophotographic toner

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Daejeon, South Korea

Jin-Nyoung Yoo