44.
    发明专利
    未知

    公开(公告)号:NO915091L

    公开(公告)日:1992-06-25

    申请号:NO915091

    申请日:1991-12-23

    Abstract: The ski described is characterised by the use of a selected fibre-reinforced material which comprises a sheet-like textile material and a thermosetting resin, the fibre fraction being 30 - 70 % by weight, and the fibres comprising synthetic fibres for at least 30 % by weight. This material is distinguished by a good flexibility and high recovering forces and lends the ski excellent running characteristics, for example good vibration damping.

    45.
    发明专利
    未知

    公开(公告)号:FI916075A

    公开(公告)日:1992-06-25

    申请号:FI916075

    申请日:1991-12-20

    Abstract: The ski described is characterised by the use of a selected fibre-reinforced material which comprises a sheet-like textile material and a thermosetting resin, the fibre fraction being 30 - 70 % by weight, and the fibres comprising synthetic fibres for at least 30 % by weight. This material is distinguished by a good flexibility and high recovering forces and lends the ski excellent running characteristics, for example good vibration damping.

    HIGH-MODULUS POLYACRYLONITRILE FILAMENTS AND FIBERS AND A PROCESS FOR THEIR PRODUCTION

    公开(公告)号:CA1170011A

    公开(公告)日:1984-07-03

    申请号:CA382253

    申请日:1981-07-22

    Applicant: HOECHST AG

    Abstract: of the disclosure: The invention relates to filaments and fibers which comprises polyacrylinitrile or acrylinitrile copolymers with a content of acrylonitrile units of at least 70% by weight preferably 90 or 99 % by weight, and which have an initial modulus of more than 1,300 cN/tex. The initial modulus is preferably 1,400 to 2,200 cN/tex and the tensile strength is at least 50 cN/tex at elongations at break of at most 15 %. Such filaments and fibers can be obtained by customary spinning, wet stretching, drying of -the filaments on hot drums and subsequent con-tact stretching of at least 1:1.5, the overall stretching being at least 1:9, preferably 1:10 to 1:25. The resulting products distinguish themselves, in particular, when used in industrial fields, such as, for example, for the production of filaments intended for conversion -to carbon fibers, as reinforcing fibers for organic and inorganic materials and for the production of awnings, filters and the like.

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