Lg Hausys, Ltd.

Cheng Zhe Huang

Min Soo Lee

Ji Hyang Son

Si Young Lee

Ji-Young Kim

Ki-Bong Park

Chang-Won Kang

Jun-Hyuk Kwon

Hyun-Jong Kwon

Sang-Sun Park

Jang-Ki Kim

Gyeong-Min Lee

Chang Won Kang

Phan Seok Kim

The present invention relates to a foam sheet using cross-linked polylactic acid and method of manufacturing the same, and more particularly a foam sheet using cross-linked polylactic acid and method of manufacturing the same with not only excellent waterproofing and workability but also relatively high foaming ratio and a uniform closed foam cell structure, by producing cross-linked polylactic acid resin in a fixed condition using composites comprising polylactic acid, cross linking agents, and/or co-crosslinking agents, and then forming a sheet shape in a fixed condition using composites comprising the cross-linked polylactic acid and foaming agents, and then foaming at relatively high temperature conditions.

Foam sheet using cross-linked polylactic acid, and preparation method thereof

Disclosed is a foam sheet using polylactic acid, which provides the advantages of energy reduction and greenhouse gas reduction, and does not emit toxic substances such as toxic gas or endocrine-disrupting chemicals. The foam sheet, according to the present invention, comprises at least one resin layer comprising a biodegradable resin composition including the polylactic acid having an extended chain, a plasticizer, and a foaming agent, and thus provides the advantages of superior processing properties, superior water resistance after processing, energy reduction and greenhouse gas reduction, and of not emitting toxic substances such as toxic gas or endocrine-disrupting chemicals.

Foam sheet using polylactic acid having extended chain and method for preparing the same

The present invention relates to wallpaper and a method for manufacturing the same. The wallpaper may be manufactured at low energy and low costs regardless of an increase in oil price and does not produce greenhouse gases and hazardous substances in the course of manufacture, use or disposal, or during fire. In addition, the wallpaper can decompose readily in the natural environment, even when buried.

Wallpaper and method for manufacturing same

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Cheongju-si, South Korea

Cheng Zhe Huang