Robert M Fennell

US Patent:

20160160396, Jun 9, 2016

Filed:

Nov 19, 2015

Appl. No.:

14/945979

Inventors:

- Woodland Park NJ, US
Barry DeWayne Meece - Piedmont SC, US
Robert Phil Fennell - Belton SC, US

Assignee:

Cytec Industries Inc. - Woodland Park NJ

International Classification:

D01F 9/32
D01F 9/22

Abstract:

A continuous carbonization method for the carbonization of a continuous, oxidized polyacrylonitrile (PAN) precursor fiber, wherein the precursor fiber exiting the carbonization system is a carbonized fiber which has been exposed to an atmosphere comprising 5% or less, preferably 0.1% or less, more preferably 0%, by volume of oxygen during its passage from a high temperature furnace to the next high temperature furnace. In one embodiment, the carbonization system includes a pre-carbonization furnace, a carbonization furnace, a substantially air-tight chamber between the furnaces, and a drive stand carrying a plurality of drive rollers that are enclosed by the air-tight chamber.