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Patent Searching and Data


Title:
METHOD FOR PRODUCING CARBON-FIBER-REINFORCED THERMOPLASTIC-RESIN COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/163578
Kind Code:
A1
Abstract:
The present invention relates to a method for producing a fiber-reinforced thermoplastic-resin composite material, the method comprising: step (1), in which (A) carbon fibers are formed into nonwoven fabric together with an aqueous emulsion of a self-emulsifiable thermoplastic urethane resin or (B) an aqueous emulsion of a self-emulsifiable thermoplastic urethane resin is added to wet-state nonwoven carbon fiber fabric, thereby obtaining nonwoven carbon fiber fabric bonded and coated with the thermoplastic urethane resin; and step (2), in which at least one sheet of the nonwoven fabric obtained in step (1) and at least one thermoplastic-resin sheet as a matrix member are stacked alternately and then heated to obtain the fiber-reinforced thermoplastic-resin composite material. The present invention provides the method whereby a fiber-reinforced thermoplastic-resin composite material having excellent composite properties is produced from either carbon fibers recovered from collected CFRPs or new cut carbon fibers.

Inventors:
SUMIDA Atsushi (3-20-10 Shimouma, Setagaya-k, Tokyo 02, 〒1540002, JP)
SUGIYAMA Kazuo (4-140-369, Chiyoda-cho, Misawa-sh, Aomori 43, 〒0330043, JP)
Application Number:
JP2019/004807
Publication Date:
August 29, 2019
Filing Date:
February 12, 2019
Export Citation:
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Assignee:
MONJU ENGINEERING MEDICINE RESEARCH INSTITUTE (3-20-10, Shimouma Setagaya-k, Tokyo 02, 〒1540002, JP)
VEEDOLONE CO., LTD. (4-140-369, Chiyoda-cho Misawa-sh, Aomori 43, 〒0330043, JP)
HOSHIYAMA INDUSTRY CO., LTD. (3-18, Asahi-cho Haramachi-ku, Minamisoma-sh, Fukushima 04, 〒9750004, JP)
International Classes:
C08J5/06; D04H1/4242
Attorney, Agent or Firm:
SIKS & CO. (8th Floor, Kyobashi-Nisshoku Bldg. 8-7, Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
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