Molded article for interior parts of a car

Details Molded article for interior parts of a car Molded article for interior parts of a car

2005-11-15

2005-11-15

Nutter, Nathan M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S232000, C525S240000, C525S241000, C524S401000, C524S451000, C524S500000, C524S515000

Reexamination Certificate

active

06964997

ABSTRACT:
The present invention relates to interior parts of a car comprising a new propylene resin composition. The present resin composition has good molding abilities and a good balance of physical properties as well as a good appearance, lower gloss and scratch resistance. Specifically, the present invention relates to a molded article for interior parts of a car comprising a polypropylene resin composition comprising the following components; a crystalline homopolypropylene having MFR of 500 to 3,000 g/10 min.; a polypropylene consisting of a crystalline homopolypropylene and an ethylene-propylene copolymer rubber having 45 to 80% by mass of a ethylene content; a polypropylene consisting of a crystalline homopolypropylene and an ethylene-propylene copolymer rubber having 25% by mass or more to below 45% by mass of a ethylene content; and an ethylene-α-olefin copolymer rubber.

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Characterization of Microstructure and Fracture Behavior of Polypropylene/Elastomer Blends Containing Small Crystal in Elastomeric Phase, Rakao Nomura, et al., Journal of Applied Polymer Science, vol. 55, 1307-1315 (1995).

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