INFUSIBILIZED POLYPHENYLENE ETHER FIBER, INFUSIBILIZED POLYPHENYLENE ETHER FORMED BODY, CARBON FIBER, ACTIVATED CARBON FIBER, CARBON FIBER FORMED BODY, ACTIVATED CARBON FIBER FORMED BODY, AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Mar 18, 2021
filing date -
Mar 31, 2020
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Abstract
In an infusibilized polyphenylene ether fiber of the present disclosure, an absorbance height ratio (A/B) between an absorbance height A at a wave number of 1694 cm−1 derived from C═O stretching vibration and an absorbance height B at a wave number of 1600 cm−1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.25 or more, and an absorbance height ratio (C/B) between an absorbance height C at a wave number of 1661 cm−1 derived from C═O stretching vibration and an absorbance height B at a wave number of 1600 cm−1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.75 or less, as measured by infrared spectroscopy.
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