Invention Grant
US07824770B2 Molding material, prepreg and fiber-reinforced composite material, and method for producing fiber-reinforced molding substrate 有权
成型材料,预浸料和纤维增强复合材料,以及纤维增强成型基材的制造方法

  • Patent Title: Molding material, prepreg and fiber-reinforced composite material, and method for producing fiber-reinforced molding substrate
  • Patent Title (中): 成型材料,预浸料和纤维增强复合材料,以及纤维增强成型基材的制造方法
  • Application No.: US12531621
    Application Date: 2008-02-22
  • Publication No.: US07824770B2
    Publication Date: 2010-11-02
  • Inventor: Masato HonmaShiro HondaShunsuke HoriuchiKoji Yamauchi
  • Applicant: Masato HonmaShiro HondaShunsuke HoriuchiKoji Yamauchi
  • Applicant Address: JP Tokyo
  • Assignee: Toray Industries, Inc.
  • Current Assignee: Toray Industries, Inc.
  • Current Assignee Address: JP Tokyo
  • Agency: RatnerPrestia
  • Priority: JP2007-072399 20070320; JP2007-074251 20070322; JP2007-074253 20070322; JP2007-074254 20070322
  • International Application: PCT/JP2008/053014 WO 20080222
  • International Announcement: WO2008/114573 WO 20080925
  • Main IPC: D02G3/00
  • IPC: D02G3/00
Molding material, prepreg and fiber-reinforced composite material, and method for producing fiber-reinforced molding substrate
Abstract:
This invention relates to: a molding material comprising a bundle of continuous reinforcing fibers (A), a polyarylene sulfide prepolymer (B) comprising at least 50% by weight of cyclic polyarylene sulfide and having the weight average molecular weight of less than 10,000 or polyarylene sulfide (B′) having the weight average molecular weight of 10,000 or greater and the degree of dispersion of 2.5 or lower, and thermoplastic resin (C); a prepreg comprising a resin composition comprising the polyarylene sulfide prepolymer (B) impregnated into a reinforcing fiber; and a method for producing a fiber-reinforced molding substrate comprising step (I) of continuously feeding a bundle of continuous reinforcing fibers, step (II) of combining cyclic polyarylene sulfide with the reinforcing fiber bundle, step (III) of heating the composite obtained in step (II) to subject the cyclic polyarylene sulfide to ring-opening polymerization to convert into polyarylene sulfide, and step (IV) of cooling the composite obtained in step (III) and withdrawing the same.
Information query
Patent Agency Ranking
0/0