18908509. PITCH-BASED BICOMPONENT CARBON FIBERS (EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY)
PITCH-BASED BICOMPONENT CARBON FIBERS
Organization Name
EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
Inventor(s)
Krishnan Anantha Narayana Iyer of Manvel TX US
Bharath Natarajan of Basking Ridge NJ US
PITCH-BASED BICOMPONENT CARBON FIBERS
This abstract first appeared for US patent application 18908509 titled 'PITCH-BASED BICOMPONENT CARBON FIBERS
Original Abstract Submitted
Bicomponent carbon fibers may comprise an inner region that is at least partially surrounded by an outer sheath, each comprising at least one carbonized pitch. The inner region comprises 70 wt % or greater mesophase pitch that has been carbonized, and the outer sheath comprises up to 70 wt % mesophase pitch that has been carbonized. An amount of mesophase pitch in the outer sheath is lower than in the inner region. The bicomponent carbon fibers may be formed by extrusion of first and second pitch compositions having the requisite amounts of mesophase pitch, followed by carbonization.