Patent · US Expired

Production of mesophase pitches, carbon fiber precursors, and carbonized fibers

US5614164A · kind A · utility

12Cited by
89References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 11, 1992
Grant dateMar 25, 1997
Priority date—
Expiry dateSep 11, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10C3/002
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Producing carbon fiber precursors and carbonized fibers comprise by treating a thin film of catalytic pitch at elevated temperature conditions, treating the resulting heavy isotropic pitch by agitating with an inert gas under elevated temperature conditions to form a mesophase pitch, forming green fibers from said mesophase pitch, stabilizing and optionally carbonizing said green fibers to obtain the desired product.

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