Samsung Sdi Co., Inc.

Lotte Advanced Materials Co., Ltd.

Jung Wook Kim

Jong Cheol Lim

Chang Min Hong

Kang Yeol Park

Chan Gyun Shin

Bum Seok Youn

Do Hoon Chang

Jong Yeun Kim

A thermoplastic elastomer composition of the present invention comprises (A) 30 to 40% by weight of a block terpolymer of an aromatic vinyl compound and alkene or a conjugated diene-based compound; (B) 25 to 50% by weight of a paraffin oil; (C) 1 to 5% by weight of a polyolefin-based resin; (D) 5 to 20% by weight of an inorganic additive; and (E) 5 to 15% by weight of a polyphenylene ether-based resin. The thermoplastic elastomer composition, which has a surface hardness of 0.1 to 40 A (shore A), shows excellent low hardness and has improved physical properties at high temperature, particularly, flexibility, restoring force at high temperatures, and the like.

Thermoplastic elastomer composition having low hardness, and diaphragm comprising same

A thermoplastic elastomer includes (A) a hydrogenated triblock copolymer, (B) a non-aromatic oil, (C) a polyolefin resin, (D) an inorganic filler, (E) a polyphenylene ether resin, and (F) a silicone resin. The thermoplastic elastomer can have good abrasion resistance and antimicrobial activity while possessing low hardness and high strength. Also provided is a molded article using the thermoplastic elastomer.

Low-hardness, high-strength thermoplastic elastomer with good abrasion resistance and diaphragm including the same

Disclosed is a thermoplastic rubber composition comprising, based on 100 parts by weight of a block terpolymer (A) of an aromatic vinyl compound and an alkene compound, 50 to 100 parts by weight of a paraffin oil (B), 30 to 70 parts by weight of an inorganic additive (C), 5 to 30 parts by weight of a polyolefin-based resin (D), and 30 to 70 parts by weight of an acryl-based resin (E). The hardness of the thermoplastic rubber composition may be freely adjusted and the thermoplastic rubber composition has a bonding strength of 2 to 4 N/mm as measured using a UTM according to a KS M 6518 peeling test method. Accordingly, bonding strength thereof to a thermoplastic resin is increased even without addition of an adhesive.

Thermoplastic rubber composition and molded product using same

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Uiwang-si, South Korea

Jung Wook Kim