Thermoplastic resin composition and its injection molded...

Details Thermoplastic resin composition and its injection molded... Thermoplastic resin composition and its injection molded...

2007-09-11

2007-09-11

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...

C525S191000, C525S232000, C525S240000, C525S241000, C524S500000, C524S502000, C524S505000, C524S515000, C524S525000

Reexamination Certificate

active

10943228

ABSTRACT:
Disclosed is a thermoplastic resin composition that contains specific amounts of polypropylene resin (A), elastomer (B), inorganic filler (C) and resin (D) which is composed of 60 to 80% by weight of a first segment which is a propylene homopolymer or a propylene-ethylene random copolymer and has an intrinsic viscosity, measured in tetralin at 135° C., of 5 dl/g or more and 20 to 40% by weight of a second segment which is a propylene homopolymer or a propylene-ethylene random copolymer and has an intrinsic viscosity, measured in tetralin at 135° C., of 0.8 to 1.2 dl/g.

REFERENCES:
patent: 6306972 (2001-10-01), Ohkawa et al.
patent: 6593409 (2003-07-01), Ohkawa et al.
patent: 6759465 (2004-07-01), Shimojo et al.
patent: 2002/0004546 (2002-01-01), Ohkawa et al.
patent: 7-286022 (1995-10-01), None
patent: 7-286075 (1995-10-01), None
patent: 2002-12718 (2002-01-01), None
patent: 2002-30196 (2002-01-01), None

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