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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 (JP)
SUGIYAMA KAZUO (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 RES INSTITUTE (JP)
VEEDOLONE CO LTD (JP)
HOSHIYAMA IND CO LTD (JP)
International Classes:
C08J5/06; D04H1/4242
Domestic Patent References:
WO2016104467A12016-06-30
Foreign References:
JPS54147274A1979-11-17
JP2004011030A2004-01-15
JP2002212311A2002-07-31
Attorney, Agent or Firm:
SIKS & CO. (JP)
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