Method of producing an amorphous polyetherimide fiber and heat-resistant fabric

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United States of America Patent

PATENT NO 9518341
APP PUB NO 20150069654A1
SERIAL NO

14539657

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Abstract

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Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200° C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.

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Patent Owner(s)

Patent OwnerAddress
KURARAY CO LTDKURASHIKI-SHI OKAYAMA 710-0801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Ryokei Chiyoda-ku, JP 21 95
Sugihara, Yukie Chiyoda-ku, JP 1 6
Uehata, Akihiro Kurashiki, JP 8 25
Washitake, Yosuke Chiyoda-ku, JP 19 57

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