Cheil Industries Inc.

Lotte Advanced Materials Co., Ltd.

Byun Kun Lee

Min Soo Lee

Sang Hyun Hong

Kee Hae Kwon

Man Suk Kim

Jin Hwa Chung

Beom Jun Joo

Seon Ae Lee

Jin Seong Lee

Woo Joong Kim

Sang Hyen Hong

Myoung Jun Kim

Jong Tae Yoon

Yong Hee Kang

The present invention provides a phosphonate based compound (B) and a flame resistant thermoplastic resin composition including a thermoplastic resin (A) and the phosphonate based compound (B).

Phosphonate based compound and flame retardant styrenic resin composition including the same

The present invention provides phosphonate compounds represented by Chemical Formula 1. In addition, the invention provides flame retardant styrene resin compositions comprising (A) styrene resin, (B) polyphenylene ether resin, and (C) the phosphonate compound. The flame retardant styrene resin compositions according to the invention: can provide protection against fire, exhibit improved impact strength, and can be environment-friendly.

Phosphonate compound and flame retardant styrenic resin composition including the same

Disclosed herein is a symmetric cyclic phosphonate compound represented by the following Formula 1, a method of preparing the same and a flame retardant styrenic resin composition including the same: 

Symmetric cyclic phosphonate compound, method of preparing the same and flame retardant styrenic resin composition including the same

A non-halogen flameproof polycarbonate resin composition is disclosed. The polycarbonate resin composition includes a base resin including (A) about 50 to about 100% by weight of a polycarbonate resin, (B) about 0 to about 50% by weight of a rubber modified aromatic vinyl resin, and (C) about 0 to about 50% by weight of an alkyl(meth)acrylate resin; and (D) about 0.5 to about 30 parts by weight of a cyclic t-butyl phosphonate compound, based on about 100 parts by weight of the base resin comprising (A), (B) and (C). The polycarbonate resin composition can have stability against fire and can be environmentally friendly since it does not contain a halogen flame retardant.

Non-halogen flameproof polycarbonate resin composition

A non-halogen flameproof resin composition is disclosed. The resin composition includes a base resin including (A) about 80 to about 99% by weight of an aromatic vinyl resin and (B) about 1 to about 20% by weight of a polyphenylene ether; and (C) about 0.5 to about 30 parts by weight of a cyclic t-butyl phosphonate, based on about 100 parts by weight of the base resin comprising (A) and (B).

Non-halogen flameproof resin composition

Disclosed herein is a sterically hindered phenolic phosphonate resin compound represented by the following Chemical Formula 1. The present invention also provides a polycarbonate resin composition including the sterically hindered phenolic phosphonate resin compound as a flame retardant. 

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Gunpo-si, South Korea

Byun Kun Lee