Patent · US Active

Method for producing carbon- or graphite-foam parts

US12030779B2 · kind B2 · utility

0Cited by

6References

14Claims

0Family size

Assignee

Nippon Kornmeyer Carbon Group GmbH · DE

Inventors

Torsten Kornmeyer · Rübhausen, DE
David Klein · Fontana, US
Michael GERADS · Bonn, DE

Key dates

Filing date	Apr 28, 2022
Grant date	Jul 9, 2024
Priority date	—
Expiry date	Apr 28, 2042

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04B1/80
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for producing carbon or graphite foam parts with high purity level for high-temperature insulation under vacuum or protective gas, as insulating material or as filter material, includes the following steps: introducing dry, foamable starch (1) into an open-top container (2) having a round or angular cross section, until the base (3) of the container (2) is covered amply and uniformly with starch (1); introducing the container (2) partly filled with starch (1) into an oven (4), and heating the container (2) to a foaming temperature of >180° C. over a prolonged period of several hours to foam the starch (1), until the container (2) has filled completely with carbon foam (6); withdrawing the container (2) from the oven (4) and extracting the carbon foam (6) after sufficient cooling, and optionally portioning the carbon foam (6) into carbon foam parts (6.1).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.