US 12,134,216 B2
Method for producing molded body by compression-molding
Daishiro Nakamoto, Osaka (JP); Daisuke Noto, Osaka (JP); Yuhei Konagai, Osaka (JP); and Ichiro Kitano, Osaka (JP)
Assigned to Teijin Limited, Osaka (JP)
Appl. No. 17/780,801
Filed by Teijin Limited, Osaka (JP)
PCT Filed Oct. 13, 2021, PCT No. PCT/JP2021/037967
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2022/097438, PCT Pub. Date May 12, 2022.
Claims priority of application No. 2020-184217 (JP), filed on Nov. 4, 2020.
Prior Publication US 2022/0410443 A1, Dec. 29, 2022
Int. Cl. B29C 43/14 (2006.01); B29C 43/00 (2006.01); B29C 43/20 (2006.01); B29C 43/36 (2006.01); B29C 70/46 (2006.01); B29K 307/04 (2006.01); B29K 309/08 (2006.01); B29L 9/00 (2006.01)
CPC B29C 43/146 (2013.01) [B29C 43/003 (2013.01); B29C 43/203 (2013.01); B29C 43/36 (2013.01); B29C 70/46 (2013.01); B29C 2043/147 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01); B29K 2995/0089 (2013.01); B29L 2009/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for producing a molded body, comprising:
bringing a material A into contact with a mold MA and
bringing a material B into contact with a mold MB respectively; and
compression-molding the material A and the material B using the mold MA and the mold MB which are a pair of male and female molds, wherein
the material A contains a carbon fiber and a thermoplastic resin M1,
the material B contains a glass fiber and a thermoplastic resin M2,
the molded body includes a pair of side walls and a connecting wall that is connected to the side walls,
cross section of the molded body has a wave shape, and
a relationship between a flatness Fa of the molded body and a height h of the side wall satisfies 0≤Fa/h<1.3,
wherein an angle θ1 between the side wall and the connecting wall on a side where the material B is present in a surface layer satisfies 90°≤θ1<160°, and
the mold MB has a mold surface S1 for forming the connecting wall and a mold surface S2 for forming the side wall, and an angle θ2 between S1 and S2 satisfies θ1<θ2.