Process for the production of porous phenolic resin fibers
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United States of America Patent
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May 28, 1991
Grant Date -
N/A
app pub date -
Dec 27, 1989
filing date -
Mar 20, 1989
priority date (Note) -
Expired
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Abstract
A process for the production of porous phenolic resin fibers is disclosed, which process comprises graft-polymerizing to phenolic resin fibers a vinyl group-containing monomer capable of forming a thermally decomposable polymer, and thereafter subjecting the fibers to a heat treatment at a temperature high enough to cause thermal decomposition of the graft polymer. The product thus obtained is excellent in heat-resistance and adiabatic property in addition to useful properties inherent to phenolic resin fibers.
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