Electroconductive antistatic polymers containing carbonaceous fi

Details Electroconductive antistatic polymers containing carbonaceous fi Electroconductive antistatic polymers containing carbonaceous fi

1997-01-29

1998-10-13

Kopec, Mark

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

264105, 524496, 4234472, H01B 124

Patent

active

058207880

ABSTRACT:
The present invention relates to antistatic polymers containing a mixture of a thermoplastic resin and about 8-20% by weight of conductive partially carbonized chopped linear carbonaceous fibers. The chopped carbonaceous fibers have a carbon content of about 70-85% by weight and an electrical resistivity of about 10.sup.-2-10.sup.3 ohm-cm. The composite has a surface resistivity of about 10.sup.4 -10.sup.10 ohms/square. These intermediate surface resistivities make the composite an excellent choice for use with plastic parts that come into direct contact with electronic components and circuitry.

REFERENCES:
patent: 4795592 (1989-01-01), Lander et al.
patent: 4837076 (1989-06-01), McCullough, Jr. et al.
patent: 5068061 (1991-11-01), Knobel et al.
patent: 5098610 (1992-03-01), Okamura et al.

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