公开(公告)号：US6123829A

公开(公告)日：2000-09-26

申请号：US52764

申请日：1998-03-31

Applicant: Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

Inventor： Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

IPC: C10C3/00 ,  D01F9/145 ,  C10C1/20 ,  D01F9/12

CPC classification number: C10C3/00 ,  D01F9/145

Abstract: The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation at the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.

公开(公告)号：US06582588B1

公开(公告)日：2003-06-24

申请号：US09514668

申请日：2000-02-28

Applicant: Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

Inventor： Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

IPC: C10G2700

CPC classification number: C10C3/00 ,  D01F9/145

Abstract: The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation at the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.