Hyundai Motor Company

Kia Motors Corporation

Gs Caltex Corporation

Han Il E Hwa Co., Ltd.

Seoyon E-hwa

Won Gil Kim

Hak Soo Kim

Yong Ho Kim

Dae Sik Kim

Seung Joon Lee

Han Ki Lee

Jung Gyun Noh

Dong Han Kim

Byung Wook Kang

Woong Jae Boo

Im Taek Sung

Kyung Soon Jang

Byung Uk Kang

Hyeong Geun Oh

Compositions of high-rigid polypropylene composite resin are provided herein. Such compositions having excellent tactile sensation and dimensional stability, and more particularly, the compositions of polypropylene composite resin having excellent tactile sensation such as thermoplastic rubber, excellent impact strength and rigidity, and low shrinkage anisotropy. The compositions of polypropylene composite resin provided herein also have excellent impact strength and rigidity as well as excellent tactile sensation such as a thermoplastic rubber and low shrinkage anisotropy. Thus, they exhibit excellent moldability and the compositions can be molded into a vehicle component. Furthermore, the compositions of polypropylene composite resin have excellent tactile sensation and can be used as a high-quality material that does not require separate painting and maintains excellent physical properties and dimensional stability as a vehicle component.

Compositions of polypropylene having excellent tactile sensation and dimensional stability

Disclosed is a method of controlling lights of symbols for a frameless inside mirror that includes operation buttons, symbols and lighting means. The method controls the lights according to a selected symbol light mode. The method may include turning on all of the lights for the symbols in a symbol light on mode when an operation of pushing a symbol light button is recognized in a symbol light off mode, turning off all of the lights for the symbols in the symbol light off mode when an operation of pushing the symbol light button is recognized in the symbol light on mode, and turning on all of the lights for the symbols for a predetermined time period in a symbol light temporary on mode when an operation of pushing any other operation symbol or symbols except those for the symbol light button and the SOS button is recognized in the symbol light off mode.

Method of controlling button symbol of inside mirror

The present invention provides a polypropylene resin composition including (A) about 60 to 80% by weight of a base resin selected from the group consisting of a high crystalline polypropylene, a propylene-ethylene copolymer, and a mixture thereof; (B) about 2 to 8% by weight of a styrene-ethylene/butene-styrene elastomer; (C) about 6 to 10% by weight of an ethylene-octene elastomer; (D) about 5 to 10% by weight of whisker; (E) about 2 to 8% by weight of talc; (F) about 1 to 3% by weight of a modified polypropylene grafted with maleic anhydride; (G) about 1 to 5% by weight of a vinyl-based acetal compatibilizer; and (H) about 1 to 3% by weight of a slipping agent containing a siloxane-based compound and an amide-based compound, with respect to the total weight of polypropylene. Polypropylene resin compositions according to the present invention can exhibit excellent physical properties such as high stiffness and impact resistance even though formed into a thin film. Hence, the polypropylene resin composition of the present invention can be effectively applied as a vehicle interior material such as a door trim, a pillar trim, a tail gate, and further can contribute to reducing weight of a vehicle.

Polypropylene resin composition

Growing community of inventors

Asan-si, South Korea

Won Gil Kim