Conductive resin composition and molded object

Details Conductive resin composition and molded object Conductive resin composition and molded object

2004-09-10

2009-06-02

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C524S495000, C280S770000

Reexamination Certificate

active

07540980

ABSTRACT:
A conductive resin composition produced by melt-kneading a mixture comprising a polyamide (A), a polyphenylene ether (B) (non-terminal-modified polyphenylene ether and/or terminal-modified polyphenylene ether), a rubbery polymer (C), a conductive carbonaceous material (D) (carbon black and/or carbon fibril), and a low molecular weight modifier compound (E) (compatibility agent), wherein the mixture has the following characteristics: (1) the amount of (D) is 0.2 to 3% by weight, based on the total weight of (A) to (E), (2) the amount of (E) is more than 0.01% by weight and less than 0.20% by weight, based on the total weight of (A) to (E), and (3) the amount (a) of a volatile substance contained in (B) satisfies the following formula: 0≦a≦−7.3×E+1.83, wherein E is the % by weight of (E), based on the total weight of (A) to (E), the amount (a) being expressed in terms of a weight decrease (% by weight) of (B) as measured by subjecting (B) to vacuum drying in vacuo at 180 ° C. for 1 hour.

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