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

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United States of America

PATENT NO 11371171
APP PUB NO 20190177887A1
SERIAL NO

16310165

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Abstract

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A production method for a separated fiber bundle includes at least: [A] a partial separation step for obtaining a partially separated fiber bundle in which separation-processed parts, each separated into a plurality of bundles, and not-separation-processed parts are alternately formed along the lengthwise direction of a fiber bundle comprising a plurality of single fibers; and [B] a cutting step for cutting the not-separation-processed parts of the partially separated fiber bundle formed in the step [A] along the lengthwise direction of the fiber bundle. A separated fiber bundle produced by the method, a fiber-reinforced resin molding material that uses the separated fiber bundle, and a production method for the fiber-reinforced resin molding material.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INCJAPAN'S TOKYO CENTRAL NIHONBASHI MUROMACHI 2 CHOME 1 NO 1 TOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Takafumi Nagoya, JP 45 259
Miyoshi, Katsuhiro Nagoya, JP 20 61
Motohashi, Tetsuya Nagoya, JP 18 51
Sato, Chiasa Nagoya, JP 7 31

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