Finish for acrylic fiber processed into carbon fiber, and carbon fiber manufacturing method therewith
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United States of America Patent
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Oct 7, 2014
Grant Date -
Oct 22, 2009
app pub date -
Nov 16, 2006
filing date -
Dec 9, 2005
priority date (Note) -
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Abstract
A finish for acrylic fiber to be processed into carbon fiber includes an ester compound having at least three ester groups in its molecule and a silicone compound, wherein the silicone compound constitutes 10 to 50 weight percent of the whole of the nonvolatile matter of the finish. A method of manufacturing carbon fiber includes the processes of applying the finish for acrylic fiber to be processed into carbon fiber to acrylic fiber to be processed into carbon fiber; oxidative-stabilizing the finish-applied acrylic fiber in an oxidizing atmosphere at 200 to 300 deg. C. to convert the fiber into oxidized fiber; and carbonizing the oxidized fiber in an inert atmosphere at 200 to 3000 deg. C.
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