Laminated fibre reinforced plastics tubes - made by winding thermoplastic impregnated fibrous sheets around a former

    公开(公告)号:DE2603765A1

    公开(公告)日:1977-08-04

    申请号:DE2603765

    申请日:1976-01-31

    Applicant: BASF AG

    Abstract: A tube has its walls made up from layers of fibrous sheets impregnated with a thermoplastic (I). Pref. the (I) impregnated sheets are wound, at a temp. > m.pt. of (I), around an internal former as one or more overlapping layers, then compressed at 5-300N/cm using a tension tape made of heat-stable films. Opt. a preformed strip of hard foam is introduced between the layers and an endless glass fibre may be wound on simultaneously. The tubes are made quickly and easily and have good and uniform qualities esp. strength. Typical plastics are polyethylene, polypropylene, styrene (co)polymers, PVC etc, and the fabric is e.g. a mat, fleece, or web of glass-, C- plastics or asbestos-fibres coated with usual polymeric binders.

    9.
    发明专利
    未知

    公开(公告)号:DE2844397A1

    公开(公告)日:1980-04-30

    申请号:DE2844397

    申请日:1978-10-12

    Applicant: BASF AG

    Abstract: The invention concerns laminates comprising a filled polyolefin layer and a thermoplastic decorative layer, a process for the preparation of these laminates and the use of the laminates for the production of moldings. Between the outer, polyolefin, layer and the decorative layer the novel laminates contain an adhesion-providing layer comprising a fiber-blend web or fabric containing two or more fusible types of fibers, of which one type welds to one of the outer layers to give a good bond, and another type welds to the other outer layer. If one outer layer of the laminate is a polyolefin, one of the fibers of the web can be polypropylene, and if the other outer layer is PVC, one of the fibers can be PVC. The preferred embodiment is a laminate of polypropylene and PVC, with the web or fabric consisting of polypropylene fibers and PVC fibers.

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