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    2.
    发明专利
    未知

    公开(公告)号：DE3812323A1

    公开(公告)日：1989-10-26

    申请号：DE3812323

    申请日：1988-04-14

    Applicant: BASF AG

    Inventor： STUTZ HERBERT DR ,  TESCH HELMUT DR ,  LINDEN GERD DR ,  ALTSTAEDT VOLKER DR ,  HECKMANN WALTER DR

    IPC: A63C5/12 ,  B29C70/08 ,  B32B27/04 ,  B64G1/00 ,  C08J5/24

    Abstract: The invention relates to fibre composites consisting of prepreg layers which are bonded to one another by intermediate layers. The prepreg layers consist of laid webs impregnated with curable resins. The intermediate layers contain regions of flexible polymer films which cover 10 to 90% of the surface of the prepreg layers. The polymer films are applied as an aqueous dispersion to the prepreg layers, and the layers are pressed after removal of the water. The composites are suitable as structural components for the aerospace industry and in the automotive industry.

    3.
    发明专利
    未知

    公开(公告)号：DE19535400A1

    公开(公告)日：1997-03-27

    申请号：DE19535400

    申请日：1995-09-23

    Applicant: BASF AG

    Inventor： WUENSCH JOSEF DR ,  WEBER MARTIN DR ,  ALTSTAEDT VOLKER DR ,  GOTTSCHALK AXEL DR ,  FISCH HERBERT DR

    IPC: C08L25/06 ,  C08L71/12 ,  C08L77/00 ,  C08L25/00 ,  C08L21/00 ,  D01F6/56

    Abstract: The disclosure pertains to thermoplastic moulding materials containing the following components: A) 5-97.8 wt.% vinylaromatic polymer of syndiotactic structure; B) 2-94.8 wt.% thermoplastic polyamide; C) 0.1-50 wt.% polyphenylene ether modified with polar groups; D) 0.1-25 wt.% additives or process auxiliary agents or mixtures of these; E) 0-20 wt.% a flame-proofing agent; F) 0-50 wt.% rubber-elastic polymerisate; and G) 0-50 wt.% fibrous or particulate fillers or mixtures thereof.

    Epoxy] resin mixts. with improved rheological properties - contain polyfunctional epoxide(s), nitrogen-contg. hardener, resin-soluble thermoplastic or rubber, and microfine silica
    6.
    发明专利
    Epoxy] resin mixts. with improved rheological properties - contain polyfunctional epoxide(s), nitrogen-contg. hardener, resin-soluble thermoplastic or rubber, and microfine silica 未知

    公开(公告)号：DE4217509A1

    公开(公告)日：1993-12-02

    申请号：DE4217509

    申请日：1992-05-27

    Applicant: BASF AG

    Inventor： STAENGLE MICHAEL DR ,  LAUN MARTIN DR ,  TESCH HELMUT DR ,  SCHORNICK GUNNAR DR ,  ALTSTAEDT VOLKER DR

    IPC: C08K3/36 ,  C08L63/00 ,  C08J5/24 ,  C08L81/06

    Abstract: Resin mixts. (I) contain (A) 100 pts.wt. polyfunctional epoxy cpd(s)., (B) 2-206 pts.wt. N-contg. hardener, (C) 3-30 pts.wt. thermoplastic or rubber which is soluble in (A), and (D) 0.3-10 pts.wt. finely divided silica. Pref., (B) is an aromatic diamine or dicyandiamide and thermoplastic (C) is a polyether-sulphone; (D) has specific surface (BET) 50-500 m2/g and particle size 5-50 nm, and is pref. hydrophilic silica. Pref., (A) are diglycidyl ethers of Bisphenol A, Bisphenol F or dicyclopentadienylphenol (e.g., DER 332, Epikote 828, Araldite PY 306, Tactix 556, etc. (RTM)), Araldite MY 721 (RTM: tetraglycidyldiaminodiphenylmethane), triglycidyl-p-amino-phenol or triglycidyltriphenylmethane). (B) is, e.g., 4,4'-diamino-diphenylsulphone (DDS) or dicyandiamide, (C) is polyether-sulphone, (D) is Cab-O-Sil M5 or Aerosil 200 (RTM). USE/ADVANTAGE - Epoxy resin mixts. are used for the prodn. of prepregs for fibre-reinforced composites. Mixts. have improved rheological properties, i.e., relatively constant high viscosity under curing conditions (so that the resin does not run out) combined with a sufficiently low viscosity for the impregnation stage.

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