Invention Grant
- Patent Title: Method for manufacturing fiber-reinforced composite material
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Application No.: US15739364Application Date: 2016-06-30
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Publication No.: US10583640B2Publication Date: 2020-03-10
- Inventor: Naokichi Imai , Masato Honma
- Applicant: TORAY INDUSTRIES, INC.
- Applicant Address: JP Tokyo
- Assignee: TORAY INDUSTRIES, INC.
- Current Assignee: TORAY INDUSTRIES, INC.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2015-135034 20150706; JP2015-135035 20150706
- International Application: PCT/JP2016/069390 WO 20160630
- International Announcement: WO2017/006832 WO 20170112
- Main IPC: B29C33/68
- IPC: B29C33/68 ; B32B27/32 ; B29C43/18 ; C08J5/04 ; B32B5/28 ; B29C70/46 ; B29C43/58 ; B32B1/04 ; B32B27/20 ; B32B27/38 ; C08J5/24

Abstract:
A method for producing a fiber-reinforced composite material is provided. By satisfying particular conditions, this method is capable of suppressing the problem of poor appearance caused by the release film in the production of the fiber-reinforced composite material having a three-dimensional shape by heat-press molding to enable production of the fiber-reinforced composite material having a high quality appearance in high cycle.A method for manufacturing a fiber-reinforced composite material wherein a fiber-reinforced substrate containing a reinforcing fiber (A) and a thermosetting resin (B) is sandwiched between release films (C) to constitute a layered material, and the layered material is pressed in a mold heated to molding temperature to thereby cure the thermosetting resin (B), wherein the method satisfies the following (i), (ii), and (iii) or (i), (ii), and (iv): (i) the fiber-reinforced composite material has at least 1 bent part, (ii) the molding temperature is 130 to 180° C., and pressure application time is 0.5 to 20 minutes, (iii) the release film (C) has a thermal contraction rate satisfying the following expressions (1) and (2): 0
Public/Granted literature
- US20180186134A1 METHOD FOR MANUFACTURING FIBER-REINFORCED COMPOSITE MATERIAL Public/Granted day:2018-07-05
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