Title:
強化繊維マットならびに繊維強化樹脂成形材料およびその製造方法
Document Type and Number:
Japanese Patent JP7259739
Kind Code:
B2
Abstract:
A reinforcing fiber mat comprising reinforcing fiber bundles having an average fiber length of 5 to 100 mm, inclusive, the weight ratio of the bundles having 86 or more fibers in the bundle being more than 99 wt% and no more than 100 wt% of the reinforcing fiber bundles. Also, a fiber-reinforced resin forming material comprising the reinforcing fiber mat and a thermoplastic resin, and a method for producing a fiber-reinforced resin forming material including steps [A]-[D]. Provided are a reinforcing fiber mat and a fiber-reinforced resin forming material having excellent mechanical properties and fluidity during forming. [A] A step for producing a mat base material of reinforcing fiber bundles having a single yarn count per unit width of 500/mm to 1600/mm, inclusive, and a drape level of 120 to 240 mm, inclusive. [B] A step for spreading or laminating a thermoplastic resin on the mat base material. [C] A step for melting the thermoplastic resin. [D] A step for cooling and solidifying the melted thermoplastic resin between panel surfaces that are 5% or more thicker than the base material thickness at the time of complete resin impregnation.
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Inventors:
Satoshi Seike
Masaru Tateyama
Mitsutaka Fuse
Hiroshi Hirano
Akihiko Matsui
Kazuma Ura
Masaru Tateyama
Mitsutaka Fuse
Hiroshi Hirano
Akihiko Matsui
Kazuma Ura
Application Number:
JP2019512690A
Publication Date:
April 18, 2023
Filing Date:
January 17, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C08J5/06; D06M15/59
Domestic Patent References:
| JP2014205354A | ||||
| JP2013127420A | ||||
| JP2013104156A |
Foreign References:
| WO2017221657A1 | ||||
| WO2011089929A1 | ||||
| WO2013115337A1 | ||||
| WO2018143067A1 |
Attorney, Agent or Firm:
Ban Toshimitsu
Koichi Hosoda
Koichi Hosoda