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US 12,304,818 B2Granted
Porous carbon and resin composition
AssigneeNamics Corporation
InventorsPawel Czubarow, Yoshitaka Kamata, Toshiyuki Sato
Life of this patent
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Abstract
A porous carbon has an ID/IG of 2.0 or more in a Raman spectrum measured by Raman spectroscopy with respect to the porous carbon wherein the IG is an accumulated intensity of a peak for G band around 1590 cm−1, and the ID is an accumulated intensity of a peak for D band around 1350 cm−1. The porous carbon has pores having a size of less than 1 μm. The porous carbon can be contained in a resin composition for producing a varistor element.
Claims11
A porous carbon,
- wherein the porous carbon has an ID/IG of 2.0 or more in a Raman spectrum measured by Raman spectroscopy with respect to the porous carbon, wherein the IG is an accumulated intensity of a peak for G band around 1590 cm−1, and the ID is an accumulated intensity of a peak for D band around 1350 cm−1,
- wherein the porous carbon has pores having a size of 200 nm or more and less than 1 μm, and
- wherein the porous carbon is porous carbon for a varistor element.
A porous carbon particle,
- wherein the porous carbon particle has an ID/IG of 2.0 or more in a Raman spectrum measured by Raman spectroscopy with respect to the porous carbon particle, wherein the IG is an accumulated intensity of a peak for G band around 1590 cm−1, and the ID is an accumulated intensity of a peak for D band around 1350 cm−1,
- wherein the porous carbon particle has pores having a size of 200 nm or more and less than 1 μm, and
- wherein a particle size of the porous carbon particle is in a range of 0.01 to 50 μm.
Dependencies are inferred from the claim text.