US 12,325,782 B2 · Polymer foams including functionalized carbon nanotubes

Abstract

This disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and functionalized carbon nanotubes, and systems and methods of formation thereof. The microcellular polymer foam has an average pore size within a range of 1 micron to 100 microns, the sub-microcellular polymer foam has an average pore size within a range of 0.5 microns to 1 micron, and the nano-cellular polymer foam has an average pore size within a range of 10 nanometers to 500 nanometers. In other aspects, this disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and non-functionalized carbon nanotubes.

Claims18

Dependent claims

A polymer foam comprising:

one or more polymers, wherein at least one polymer of the one or more polymers is selected from the group consisting of polycarbonate, polycarbonate-siloxane copolymers, polyetherimide, polyetherimide-siloxane copolymers, polymethylmethacrylate (PMMA), polyphenylene ether (PPE)-siloxane copolymers, and a combination thereof, and wherein the at least one polymer of the one or more polymers includes a polycarbonate-siloxane copolymer, a polyetherimide-siloxane copolymer, or a polyphenylene ether (PPE)-siloxane copolymer;
and
functionalized carbon nanotubes, the functionalized carbon nanotubes having multiple walls and one or more oxygen based functional groups,
wherein the polymer foam has an average pore size within a range of 10 nanometers to 100 microns.

1 more element

Dependencies are inferred from the claim text.

Polymer foams including functionalized carbon nanotubes

Life of this patent

Polymer foams including functionalized carbon nanotubes

Life of this patent

Abstract

Claims18