Lg Chem, Ltd

Geon-soo Kim

Yoon-Ho Kim

Yoon Ho Kim

Chan-Hong Lee

Kwang Jin Lee

Sang-Il Nam

Hyung-jin Kim

Sung-Hun Choi

Yeon-Hwa Wi

Disclosed are a PVC foam processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, provided are a PVC foam processing aid and a polyvinyl chloride resin composition exhibiting superior aggregation property and improving foam moldability of polyvinyl chloride (PVC) resins, prepared therefrom.

PVC foam processing aid, method for preparing the same and polyvinyl chloride resin composition comprising the same

The present invention relates to an impact strength modifier for thermoplastic polyester resin and a thermoplastic polyester resin composition containing the same, more precisely an impact strength modifier for thermoplastic polyester resin prepared by graft-polymerization of a) 20-80 weight % of multilayered rubber latex in which the ratio of particle diameter (P/P) of an inner layer (P) to outer layer is 1.05-1.5, and glass transition temperature of the inner layer or the outer layer is up to &#x2212;30&#xb0; C.; and b) 20-80 weight % of vinyl monomer. According to the present invention, a thermoplastic polyester resin composition having excellent transparency and improved impact strength can be provided by containing an impact strength modifier for thermoplastic polyester resin having multilayered structure in which content of rubber latex, glass transition temperature, particle diameter and refraction index are regulated.

Impact strength modifiers for thermoplastic polyester and thermoplastic polyester resin composition containing the same

The present invention relates to a graft copolymer for a transparent thermoplastic polyurethane resin prepared by graft copolymerization of (a) 50-85 weight % of rubber latex having a multi-layered structure composed of an inner layer and an outer layer comprising a conjugated diene monomer and an ethylenically unsaturated aromatic compound in which the refractive index of the inner layer is greater than that of the outer layer; and (b) 15-50 weight % of a C-Cvinyl monomer; a method for making same; and a thermoplastic polyurethane resin composition comprising same having excellent color properties, calendaring properties, low temperature impact strength and transparency.

Graft copolymer for transparent thermoplastic polyurethane resin, preparation method thereof, and polyurethane resin composition containing the same

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Daejeon, South Korea

Geon-soo Kim