Polypropylene resin composition for exterior parts of...

Details Polypropylene resin composition for exterior parts of... Polypropylene resin composition for exterior parts of...

C - Chemistry, Metallurgy

08

L

C08L 23/14 (2006.01) C08K 3/34 (2006.01) C08L 53/00 (2006.01)

Patent

CA 2187407

A polypropylene resin composition having a high moldability and capable of forming therefrom shaped articles having excellent surface hardness, thermal deformation resistance and low temperature impact resistance includes (A) 35 - 74 wt% of a crystalline ethylene-propylene block copolymer with an ethylene content of 0.5 - 15 wt%, an isotactic pentad fractional propylene of 96% or more and a MFR of 40 - 80 g/10 min. (230°C, 2160g); (B) 21 - 40 wt% of an ethylene-.alpha.-olefin copolymer produced by using a single site catalyst and having an .alpha.-olefin content of 70 mol% or more, a ratio (Mw/Mn) of 2.5 or less, and a ratio {MI10/MI2.16) of 6 to 15; and (C) 5 - 25 wt% of a talc particle component having an average particle size of 3 - 7 µm.

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