FOAM POLYSTYRENE-BASED BEAD AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2012/091381

A3

The present invention relates to a foam polystyrene-based bead. The foam polystyrene-based bead includes: a core containing a styrene-based resin, a char-generating thermoplastic resin, and an inorganic foam; and a skin disposed on the surface of the core, wherein the skin contains a resin of which the glass transition temperature is below around 120°C. Here, the foam is contained in the core or skin. The core may further include a carbon filter. The foam manufactured from the flame retardant foam polystyrene-based bead does not conform to KS F ISO 5660-1, but is a self-extinguishing flame retardant material. Thus, the foam may have improved flameproof properties as compared to those of a flame retardant material (flame retardant 3rd degree), better thermal insulation performance, and superior mechanical strength.

KIM SANG HYUK (KR)
KIM IL JIN (KR)
KIM YU HO (KR)
CHO SA EUN (KR)
KWON KEE HAE (KR)
KIM DONG HEE (KR)
PARK SEH JIN (KR)

PCT/KR2011/010094

October 04, 2012

December 26, 2011

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CHEIL IND INC (KR)
KIM SANG HYUK (KR)
KIM IL JIN (KR)
KIM YU HO (KR)
CHO SA EUN (KR)
KWON KEE HAE (KR)
KIM DONG HEE (KR)
PARK SEH JIN (KR)

C08J9/16; C08J9/18; C08K3/04; C08L25/04

WO2009112392A1

2009-09-17

KR20090038314A	2009-04-20
KR20100129706A	2010-12-09
JP2010528167A	2010-08-19
KR20060069721A	2006-06-22
KR20010028049A	2001-04-06

AJU KIM CHANG & LEE (Hubbahubba Building 648 Yeoksam-dong, Gangnam-gu, Seoul 135-911, KR)

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