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Title:
METHOD FOR PRODUCING MULTIPLE-PLY ROVING, MULTIPLE-PLY ROVING, AND GLASS FIBER-REINFORCED RESIN MOLDED BODY
Document Type and Number:
WIPO Patent Application WO/2023/089969
Kind Code:
A1
Abstract:
Provided is a method for producing a multiple-ply roving capable of effectively raising the mechanical strength of a resin molded body.　The method for producing a multiple-ply roving 10 comprises a step for bundling a plurality of glass filaments having a flat cross-sectional shape and a flatness ratio (major axis/minor axis) of 3.0-6.0 to form a glass strand and a step for obtaining the multiple-ply roving 10 by doubling a plurality of glass strands.

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Inventors:
KINEMURA TAKASHI (JP)
Application Number:
PCT/JP2022/036908
Publication Date:
May 25, 2023
Filing Date:
October 03, 2022
Export Citation:
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Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B37/12; B29C70/12; B29C70/42; D02G3/18
Domestic Patent References:
WO2020040033A12020-02-27
WO2017038508A12017-03-09
Foreign References:
JP2009256203A2009-11-05
JPH07237820A1995-09-12
JPH06234540A1994-08-23
JPH10297932A1998-11-10
JP2006045390A2006-02-16
JP2018150650A2018-09-27
JPH0471810A1992-03-06
Attorney, Agent or Firm:
OSAKA FRONT (JP)
Download PDF:
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