Patent · US Active

Method for producing a molded part from a carbon material using recycled carbon fibers and molded part

US9352967B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

SGL CARBON SE · DE

Inventors

Martin Christ · Osterode, DE
Oswin Öttinger · Meitingen, DE
Reiner Bode · Aindling, DE
Alain Prefontaine · Wiesbaden, DE
GEORG SCHWAIGER · Nandlstadt, DE

Key dates

Filing date	Aug 10, 2012
Grant date	May 31, 2016
Priority date	—
Expiry date	Sep 9, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/9607
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.

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