Cheil Industries Inc.

Lotte Chemical Corporation

Lotte Advanced Materials Co., Ltd.

Sang Hwa Lee

Jong Cheol Lim

Sang Hyun Hong

Min Soo Lee

Pil Ho Kim

Yeong Deuk Seo

In Sik Shim

Sun Ho Song

Yoo Jin Jung

In Geol Baek

Kyoung Tae Youm

Tae Gon Kang

Hyun Su Kim

Seung Shik Shin

Nam Hyun Kim

Chan Moo Park

Yang Il Kim

Bong Jae Lee

Ik Mo Kim

Hyuk Jin Jung

Young Mi Kim

In Sik Sim

Ho Geun Park

Sang Kyun Lim

Mi Sung Kang

A polyamide resin composition of the present invention comprises: approximately 100 parts by weight of a polyamide resin comprising approximately 5 to 40 weight % of an aromatic polyamide resin and approximately 60 to 95 weight % of an aliphatic polyamide resin; approximately 30 to 70 parts by weight of an inorganic filler; and approximately 0.5 to 5 parts by weight of modified polyalkylene glycol. The modified polyalkylene glycol comprises an isocyanate group, a succinimide group or an epoxy group at one terminal of polyalkylene glycol. The polyamide resin composition exhibits excellent adhesiveness with other materials, excellent antifouling properties, impact resistance, stiffness, injection moldability and the like.

Polyamide resin composition and molded product comprising same

The polyamide resin composition of the present invention comprises: about 15 to about 49 wt % of an aromatic polyamide resin containing a repeating unit represented by chemical formula 1 and a repeating unit represented by chemical formula 2; about 1 to about 30 wt % of a polyamide resin having a glass transition temperature of about 40 to about 120° C.; about 1 to about 20 wt % of an olefin-based copolymer; about 5 to about 40 wt % of calcium carbonate; and about 5 to about 40 wt % of talc. The polyamide resin composition and the molded product formed therefrom are excellent in plating adhesion, impact resistance, stiffness, heat resistance, flowability, appearance characteristics, and the like.

A thermoplastic resin composition according to the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 5 to about 100 parts by weight of an inorganic filler; about 0.1 to about 2 parts by weight of a maleic anhydride-modified olefin-based copolymer; and about 0.1 to about 2 parts by weight of a phosphite compound represented by chemical formula 1. The thermoplastic resin composition is excellent in terms of chemical resistance, impact resistance, rigidity, physical property balance thereof, and the like.

Thermoplastic resin composition and molded article therefrom

A thermoplastic resin composition of the present invention comprises: about 45 wt % to about 65 wt % of an aromatic polyamide resin comprising at least one of a repeat unit represented by Formula 1, a repeat unit represented by Formula 2, and a repeat unit represented by Formula 3; about 1 wt % to about 20 wt % of an olefin copolymer; about 15 wt % to about 35 wt % of calcium carbonate; and about 5 wt % to about 25 wt % of zinc oxide, wherein the weight ratio of the calcium carbonate and the zinc oxide (calcium carbonate:zinc oxide) is about 5:1 to about 1:1. The thermoplastic resin composition and a molded article formed therefrom have good properties in terms of plating adhesion, appearance, heat resistance, etc.

Thermoplastic resin composition and molded article formed therefrom

A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 40 wt % to about 60 wt % of a polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 10 wt % of a maleic anhydride-modified olefin-based copolymer; about 5 wt % to about 20 wt % of calcium carbonate subjected to surface treatment with a silane compound; and about 20 wt % to about 40 wt % of glass fibers, wherein the silane compound includes a functional group comprising an amino group, an epoxy group, and/or a (meth)acryloxy group. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, and/or appearance, and the like.

Polyamide resin composition and molded article comprising the same

A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 15 wt % to about 49 wt % of an aromatic polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 30 wt % of a polyamide resin having a glass transition temperature of about 40&#xb0; C. to about 120&#xb0; C.; about 1 wt % to about 20 wt % of an olefin-based copolymer; and about 30 wt % to about 50 wt % of calcium carbonate. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, fluidity, and/or appearance, and the like.

A polyamide resin composition includes an aromatic polyamide resin, an aliphatic polyamide resin, a polyacrylic acid, and glass fibers. The polyamide resin composition can have good properties in terms of heat resistance, long-term heat resistance stability, and/or appearance characteristics.

Polyamide resin composition and article comprising the same

A thermoplastic resin composition includes: a polyester resin including a repeat unit represented by Formula 1 as described in the specification; glass fibers; a white pigment; an aromatic vinyl-olefin copolymer; and talc. The thermoplastic resin composition can have good properties in terms of reflectance, reflectance retention, impact resistance, and/or moldability.

Thermoplastic resin composition and article comprising the same

A thermoplastic resin composition that can have high reflectance and light efficiency and excellent discoloration resistance even at high temperature and high humidity conditions over a long period of time includes (A) a polyester resin; (B) a white pigment; and (C) a sodium phosphate salt.

Thermoplastic resin composition having excellent light stability at high temperature

The polyester resin composition of the present invention is characterized by comprising: (A) 100 parts by weight of a high heat resistant polyester resin having a main chain formed by a structure derived from aromatic dicarboxylic acid and alicyclic diol, wherein the melting point of the high heat resistant polyester resin is 200&#xb0; C. or more; (B) 0.1 to 80 parts by weight of white pigment; and (C) 1 to 40 parts by weight of polyolefin copolymer. The resin composition of the present invention further comprises 1 to 40 parts by weight of a high stiffness polyester resin having a main chain comprising a structure derived from aromatic dicarboxylic acid and aliphathic diol. The molding foam, which is obtained from the polyester resin composition and the manufactured polyester resin composition, has good flexibility, heat resistance, and yellowing resistance and can be used for an LED reflecting plate due to having improved impact strength.

Polyester resin composition having good yellowing resistance and impact resistance

A polyamide resin composition includes (A) a polyamide resin in an amount of about 30 to about 80% by weight, (B) inorganic filler in an amount of about 10 to about 60% by weight, (C) white pigment in an amount of about 5 to about 50% by weight; and (D) photostabilizer in an amount of about 0.05 to about 2 parts by weight and (E) inorganic fine particles in an amount of about 0.05 to about 3 parts by weight, wherein each of (D) and (E) is based on about 100 parts by weight of the polyamide resin (A). The polyamide resin composition can have good light reflectance and yellowing resistance.

Polyamide composition having surface reflectance and heat resistance

A polyester resin composition comprises (A) about 100 parts by weight of polyester resin with a melting point greater than about 200&#xb0; C. and including repeat units of Formula 1; (B) about 0.1 to about 80 parts by weight of white pigment; and (C) about 0.01 to about 80 parts by weight of filler.  The polyester resin composition of the present invention does not exhibit deteriorated reflectance and impact strength and also has good heat resistance, non-yellowing property and humidity resistance and can be used in a light emitting diode (LED) reflector.

Polyester resin composition

A thermoplastic resin composition includes (A) a thermoplastic resin; (B) an inorganic filler; (C) a white pigment; (D) a photostabilizer; and (E) sodium phosphate salt, wherein the thermoplastic resin composition comprises about 0.1 to about 4.7% by weight of the inorganic filler (B) based on 100% by weight of a base resin composition including the thermoplastic resin (A), the inorganic filler (B), and the white pigment (C), wherein the thermoplastic resin composition can have excellent surface gloss, reflectance, anti-yellowing property and moldability.

Thermoplastic resin composition having excellent surface gloss, reflectance, anti-yellowing property and moldability

A polyamide resin composition includes (A) a semi-aromatic polyamide resin, (B) an inorganic filler, (C) a white pigment and (D) a phosphinate salt. The polyamide resin composition can have excellent heat resistance, reflectance, photostability and/or discoloration resistance.

Polyamide resin composition having excellent photostability and discoloration resistance

A polyamide resin composition includes (A) polyamide resin, (B) white pigment, and (C) sodium phosphate salt.

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Uiwang-si, South Korea

Sang Hwa Lee