Title:
PRODUCTION METHOD FOR PREPREG, PREPREG TAPE, AND FIBER REINFORCED COMPOSITE MATERIAL, AND COATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/040150
Kind Code:
A1
Abstract:
Regarding a method for producing a prepreg that is obtained by applying a matrix resin to a fiber reinforced sheet, the present invention addresses the problem of providing a prepreg production method by which continuously travel can be performed without involving jamming of a generated fluff even when the travel speed is high, and by which a fiber reinforced sheet can be efficiently impregnated with a matrix resin. The production method for a prepreg (1c), comprises applying a matrix resin (2) to a fiber reinforced sheet (1a) by causing the fiber reinforced sheet (1a) to substantially, vertically downward pass through the inside of a coating part (20) in which the matrix resin (2) is reserved, and applying a resin film (3) to the primary prepreg (1c) drawn out from the coating part (20), wherein: the coating part (20) is provided with a liquid reservoir section and a constriction section which are connected to each other; the liquid reservoir section has a portion the cross-sectional area of which continuously decreases along the travel direction of the fiber reinforced sheet; and the constriction section has a slit-shaped cross section, and has a cross-sectional area smaller than that of the upper surface of the liquid reservoir section.
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Inventors:
OCHI TAKASHI (JP)
NISHINO SO (JP)
AOKI JUNICHI (JP)
KONO YOSHIKAZU (JP)
SUZUKI TAMOTSU (JP)
IKUSHIMA TAKASHI (JP)
NISHINO SO (JP)
AOKI JUNICHI (JP)
KONO YOSHIKAZU (JP)
SUZUKI TAMOTSU (JP)
IKUSHIMA TAKASHI (JP)
Application Number:
PCT/JP2019/032492
Publication Date:
February 27, 2020
Filing Date:
August 20, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B29B15/12; B29B11/16; B29K101/10
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"Funtai-kiki/sochi no Kiso-chishiki", 11 September 2001, KOGYO CHOSAKAI PUBLISHING CO., LTD., pages: 68 - 69
See also references of EP 3842203A4
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