Abstract:
PURPOSE: A micro pellet type thermoplastic polyurethane composition for powder slush molding process and a manufacturing method thereof are provided to enhance mechanical property, light-proof, heat resistance, anti-hydrolysis property, and releasability. CONSTITUTION: A micro pellet type thermoplastic polyurethane composition for powder slush molding process comprises 5-10 weight% of ester-based polyol, 5-10 weight% of ether based polyol, 30-70 weight% of polycarbonate diol, 10-50 weight% of isocyanate, 5-30 weight% of chain extender, and 0.1-5 weight% of light-resistant stabilizer. The ester based polyol is more than one kind which is selected from polycaprolactone polyol, butylene adipate, ethylene adipate, and diethylene diadipate. The ether based polyol is polypropylene glycol, polytetramethylene ether glycol, or a mixture thereof.
Abstract:
PURPOSE: A TPO sheet composition is provided to ensure excellent bondability with an aqueous coating agent such as an aqueous primer and a surface treating agent and to enable the manufacture of automobile interiors with excellent properties through female vacuum molding. CONSTITUTION: A TPO sheet composition comprises 35~45 weight% of partially crosslinked thermoplastic olefin resin, 5~15 weight% of non-crosslinked thermoplastic olefin resin, 10~20 weight% of polypropylene resin, 10~20 weight% of ethylene octene rubber, 10~20 weight% of linear low-density polyethylene resin and 5~10 weight% of inorganic filler. The partially crosslinked thermoplastic olefin resin has a hardness of Shore A 65.
Abstract:
A thermoplastic polyolefin-based elastomer sheet composition for water-based coating is provided to realize excellent mechanical properties including elongation, heat resistance and moldability, and moisture- and chemical resistance. A thermoplastic polyolefin-based elastomer sheet composition for water-based coating comprises: (a) 40-45 wt% of partially crosslinked thermoplastic polyolefin-based elastomer resin; (b) 5-10 wt% of non-crosslinked thermoplastic polyolefin-based elastomer resin; (c) 15-20 wt% of a polypropylene resin; (d) 15-20 wt% of an ethylene octene rubber resin; (e) 2-5 wt% of a linear low density polyethylene resin having a specific gravity of 0.92-0.94; (f) 10-15 wt% of a polyethylene master batch containing 2-3 wt% of a lubricant; and (g) 4-5 wt% of an inorganic filler.