Back to results
US 4,902,453 AGranted
Process for the preparation of a fiber-reinforced carbon composite
AssigneeAcross Co., Ltd.
InventorsAkimitsu Okura, Toshoku Cho, Takao Nakagawa, Shimpei Gomi, Takuya Ueda
Life of this patent
Estimating the term…
Abstract
A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the interstices between the fibers and including a finely divided carbonaceous binder pitch and a finely divided coke, and a flexible sleeve formed of a thermoplastic resin and surrounding the core.
Claims6
A process for the preparation of a fiber reinforced carbon composite, comprising the steps of:
- continuously passing a multiplicity of inorganic reinforcing fibers through a bed of a mixed powder including a finely divided carbonaceous binder pitch and a finely divided coke so that the mixed powder is taken in the interstices between said fibers;
- assembling said mixed powder-carrying fibers to form a tow with said mixed powder being held between said fibers;
- extruding a thermoplastic resin over said tow to form a sleeve surrounding said tow;
- and
- carbonizing the assembled tow, powder and sleeve by heating to thereby produce the fiber-reinforced carbon composite.
2 more elements
Dependencies are inferred from the claim text.