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US 2019/0291364 A1Published application
Melt processable thermoplastic composite comprising a multimodal dielectric filler
AssigneeRogers Corporation
InventorsStephen O'Connor, Murali Sethumadhavan
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Abstract
In an embodiment, a thermoplastic composite comprises a thermoplastic polymer; and a dielectric filler having a multimodal particle size distribution; wherein a peak of a first mode of the multimodal particle size distribution is at least seven times that of a peak of a second mode of the multimodal particle size distribution; and a flow modifier.
Claims20
A melt processable thermoplastic composite comprising:
- a thermoplastic polymer;
- a dielectric filler having a multimodal particle size distribution;
- wherein a peak of a first mode of the multimodal particle size distribution is at least seven times that of a peak of a second mode of the multimodal particle size distribution;
- and
- a flow modifier.
2 more elements
A melt processable thermoplastic composite comprising:
- 10 to 90 vol % a thermoplastic polymer based on a total weight of the thermoplastic composite comprising a poly(aryl)etherketone, a polysulfone, a poly(phenylene sulfide), a poly(ether imide), a poly(amide imide), a fluoropolymer, a polyolefin, a liquid crystalline polymer, or a combination comprising at least one of the foregoing;
- 10 to 90 vol % a dielectric filler based on a total weight of the thermoplastic composite having a multimodal particle size distribution;
- wherein a peak of a first mode of the multimodal particle size distribution is at 10 to 20 times that of a peak of a second mode of the multimodal particle size distribution;
- wherein the dielectric filler comprises titanium dioxide, barium titanate, strontium titanate, silica, corundum, wollastonite, boron nitride, aluminum oxide, aluminum nitride, silicon carbide, beryllia, magnesia, silica, or a combination comprising at least one of the foregoing;
- and
- 0.5 to 5 vol % of a flow modifier based on the total volume of the thermoplastic composite;
- wherein the thermoplastic composite has a dielectric constant of greater than or equal to 5 at 500 MHz to 10 GHz and a dielectric loss of less than or equal to 0.007 at 500 MHz to 10 GHz.
4 more elements
Dependencies are inferred from the claim text.