7.
    发明专利
    未知

    公开(公告)号:DE1185372B

    公开(公告)日:1965-01-14

    申请号:DEB0069427

    申请日:1962-10-31

    Applicant: BASF AG

    Abstract: 1,053,757. Olefin polymer/bitumen compositions. BADISCHE ANILIN- & SODAFABRIK A.G. Oct. 24, 1963 [Oct. 31, 1962], No. 41962/63. Headings C3N and C3P. A moulding material is produced by causing molten bitumen, having a penetration of at least 35, to flow in a stream and extruding into the bitumen, in the direction of flow thereof, strands of molten polymer of a mono-olefin. The polymer may be derived from ethylene, propylene, butene, isobutylene, with/without vinyl acetate, vinyl propionate or an acrylic ester. Optionally a mineral filler is present in the polymer and specified are ground shale or slate, quartz powder, clay and feldspar. Further, the polymer may be used in the form of a concentrate in the bitumen. Preferably the extruding apparatus comprises 2 to 20 jets per kilogram per hour of polymer, and the stream of bitumen has laminar flow downstream of the jets. Applications specified for the moulding material are as coatings for metal surfaces, as sealing compounds, and as pipes and road surfaces.

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