Partially separated fiber bundle, production method for partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method for fiber-reinforced resin molding material using partially separated fiber bundle

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United States of America

PATENT NO 10569986
APP PUB NO 20190263625A1
SERIAL NO

16307678

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Abstract

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A partially separated fiber bundle includes separation-processed sections, each divided into a plurality of bundles of at least three bundles, and not-separation-processed sections, that are alternately formed along the lengthwise direction of a fiber bundle that comprises a plurality of single fibers. The partially separated fiber bundle is characterized in that, at any width-direction cross-section taken along the lengthwise direction thereof, a rate of single fibers contained in a region at which adjacent divided fiber bundles are joined by a not-separation-processed part is 67% or less relative to the total single fibers in the width-direction cross-section.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INC1-1 NIHONBASHI-MUROMACHI 2-CHOME CHUO-KU TOKYO 103-8666

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Takafumi Nagoya, JP 45 259
Kawahara, Yoshihiro Otsu, JP 45 572
Motohashi, Tetsuya Nagoya, JP 18 51
Noguchi, Yasumoto Iyo-gun, JP 8 39
Sato, Chiasa Nagoya, JP 7 31
Suzuki, Tamotsu Otsu, JP 89 676

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