Conductive polymer compositions and methods of manufacture thereof
AssigneeGeneral Electric Company
InventorsNiraj C. Patel, Kim G. Balfour
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Abstract
A composition comprising polymeric resin, electrically conductive filler and antistatic agents is disclosed. Electromagnetic shielding, electrostatic dissipation or antistatic capabilities can be imparted to articles made from the composition depending upon the amounts of the electrically conductive filler and antistatic agent present.
Claims41
A conductive resin composition comprising:
- a polymeric resin;
- an electrically conductive filler;
- and
- an antistatic agent, wherein the antistatic agent is a block copolymer.
A conductive composition comprising:
- a thermoplastic polymeric resin;
- an electrically conductive carbon fiber;
- and
- an antistatic agent, wherein the antistatic agent is a block copolymer.
An electrically conductive composition comprising:
- an acrylonitrile-butadiene-styrene copolymer;
- an electrically conductive carbon fiber;
- and
- a polyetheresteramide copolymer.
An electrically conductive composition comprising:
- a thermoplastic blend of polyphenylene ether and high impact polystyrene;
- an electrically conductive carbon fiber;
- and
- an antistatic agent, wherein the antistatic agent is a block copolymer.
An extruded conductive pellet formed from a composition comprising:
- a thermoplastic polymeric resin;
- an electrically conductive filler;
- and
- an antistatic agent, wherein the antistatic agent is a block copolymer, and further wherein the filler and the antistatic agent are present in an amount effective to provide residual surface voltage of less than about 5 volts when measured 8 seconds after application of 1000 volts.
A conductive resin composition comprising a polymeric resin, carbon fibers and an antistatic agent, wherein the antistatic agent is a block copolymer, in amounts effective to provide the composition with a residual surface voltage of about 3 volts or less, when measured at a time of about 8 seconds after application of a charge in excess of about 1000 volts.
A method for manufacturing a conductive composition comprising:
- compounding a polymeric resin, carbon fibers, and an antistatic agent, wherein the antistatic agent is a block copolymer, in an extruder;
- quenching and pelletizing the extrudate;
- and
- injection molding said pelletized extrudate into a conductive article.
Dependencies are inferred from the claim text.