Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2007-12-31
2010-11-23
Harlan, Robert D. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S505000, C524S451000, C524S423000, C524S427000, C524S456000, C524S383000, C524S400000, C524S432000, C524S399000
Reexamination Certificate
active
07838581
ABSTRACT:
The present invention relates to a polypropylene resin composition, more particularly to a composition comprising an ethylene/propylene block copolymer, an ethylene/α-olefin copolymer rubber, a styrene-based polymer rubber, a polypropylene-silicone rubber master batch, a magnesium compound and an inorganic filler.The polypropylene resin composition of the present invention exhibits superior rigidity, scratch resistance and glossiness, outstanding laser processability and low-temperature impact resistance, and also superior fluidity. Therefore, it is applicable to manufacture interior materials of a vehicle such as an instrument panel. Especially, the present invention is suitable to manufacture an air bag deployable instrument panel assembly requiring no coating.
REFERENCES:
patent: 2004/0116605 (2004-06-01), Nishihara et al.
patent: 2006/0189759 (2006-08-01), Walther et al.
patent: 09-048889 (1997-02-01), None
patent: 2001-214014 (2001-08-01), None
Jeon Yun Jong
Kim Jae Hong
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Harlan Robert D.
Hyundai Motor Company
Kia Motors Corporation
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