Invention Grant
- Patent Title: Fiber-reinforced molding material and molded article using same
-
Application No.: US16316603Application Date: 2017-06-29
-
Publication No.: US10669386B2Publication Date: 2020-06-02
- Inventor: Yukiko Fujita , Takashi Yasumura
- Applicant: DIC Corporation
- Applicant Address: JP Tokyo
- Assignee: DIC CORPORATION
- Current Assignee: DIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@40c53a3
- International Application: PCT/JP2017/023898 WO 20170629
- International Announcement: WO2018/070076 WO 20180419
- Main IPC: C08J5/04
- IPC: C08J5/04 ; B29B7/90 ; B29C70/12 ; B29C70/34 ; B29K63/00 ; B29K307/04

Abstract:
Provided is a fiber-reinforced molding material including as essential materials: a vinyl ester (A) that is a reaction product of an epoxy resin (a1) having an epoxy equivalent in the range of 180 to 500 and (meth)acrylic acid (a2); an unsaturated monomer (B) having a flash point of 100° C. or higher; a polyisocyanate (C); a polymerization initiator (D); and carbon fibers (E) having a fiber length of 2.5 to 50 mm, in which the mass ratio ((A)/(B)) of the vinyl ester (A) to the unsaturated monomer (B) is in the range of 40/60 to 85/15, and the molar ratio (NCO/OH) of isocyanate groups (NCO) in the polyisocyanate (C) to hydroxy groups (OH) in the vinyl ester (A) is in the range of 0.25 to 0.85.
Public/Granted literature
- US20200071474A1 FIBER-REINFORCED MOLDING MATERIAL AND MOLDED ARTICLE USING SAME Public/Granted day:2020-03-05
Information query