Method for reproducibly preparing a low-melting high-carbon yield precursor

Patent · Sun Jan 01 00:00:00 EST 1978

OSTI ID:863093

Smith, Wesley E ^[1]

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1. Oak Ridge, TN

The present invention is directed to a method for preparing a reproducible synthetic carbon precursor by the autoclave polymerization of indene (C.sub.9 H.sub.8) at a temperature in the range of 470.degree.-485.degree. C, and at a pressure in the range of about 1000 to about 4300 psi. Volatiles in the resulting liquid indene polymer are removed by vacuum outgassing to form a solid carbon precursor characterized by having a relatively low melting temperature, high-carbon yield, and high reproducibility which provide for the fabrication of carbon and graphite composites having strict requirements for reproducible properties.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4091196
• OSTI ID: 863093
• Country of Publication: United States
• Language: English

Related Subjects

method
reproducibly
preparing
low-melting
high-carbon
yield
precursor
directed
reproducible
synthetic
carbon
autoclave
polymerization
indene
temperature
range
470
degree
-485
pressure
1000
4300
psi
volatiles
resulting
liquid
polymer
removed
vacuum
outgassing
form
solid
characterized
relatively
melting
reproducibility
provide
fabrication
graphite
composites
strict
requirements
properties
melting temperature
carbon precursor
solid carbon
resulting liquid
reproducibly preparing
yield precursor
synthetic carbon
graphite composites
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