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US 6,610,773 B1Granted
Conductive, low warp polyetherimide resin compositions
AssigneeGeneral Electric Company
InventorsUttandaraman Sundararaj, Robert R. Gallucci
Life of this patent
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Abstract
Polyetherimide compositions having low warp and conductive properties are provided. The compositions are prepared by combining a polyetherimide resin or polyetherimide-copolymer resin and a filler wherein the filler comprises a plate-like filler and a conductive filler.
Claims27
A polyetherimide composition, comprising
- a polyetherimide resin or polyetherimide-copolymer resin;
- mica, flaked glass, or a mixture thereof present in an amount of about 5% to about 30% by weight based on the total weight of the composition;
- and
- conductive filler consisting of carbon fiber present in an amount of about 9% to about 45% by weight of based on the total weight of the composition wherein the composition has low warp properties and a surface resistivity of less than or equal to about 106 ohms/cm2 in the absence of metal flake and polyphenylene sulfide.
1 more element
A polyetherimide composition, consisting of
- a polyetherimide resin or polyetherimide-copolymer resin;
- mica, flaked glass, or a mixture thereof present in an amount of about 5% to about 30% by weight of based on the total weight of the composition;
- and
- carbon fiber or carbon fibrils present in an amount of about 9% to about 45% by weight of based on the total weight of the composition wherein the composition has a surface resistivity of less than or equal to about 106 ohms/cm2 and low warp properties.
1 more element
A polyetherimide composition, consisting of
- a polyetherimide resin or polyetherimide-copolymer resin;
- mica, flaked glass, or a mixture thereof present in an amount of about 5% to about 30% by weight of based on the total weight of the composition;
- carbon fiber or carbon fibrils present in an amount of about 9% to about 45% by weight of based on the total weight of the composition;
- and
- a polyolefin wherein the composition has a surface resistivity of less than or equal to about 106 ohms/cm2 and low warp properties.
2 more elements
Dependencies are inferred from the claim text.