2.
    发明专利
    未知

    公开(公告)号:DE3444631A1

    公开(公告)日:1985-08-22

    申请号:DE3444631

    申请日:1984-12-07

    Applicant: HOECHST AG

    Abstract: Composite material composed of (a) a plasticized PVC substrate, if appropriate a fabric coated with plasticized PVC, and (b) a top layer composed of (b1) 5 to 100% by weight of a mixture of an acrylic resin and plasticized PVC, and (b2) 0 to 95% by weight of a fluorine-containing copolymer formed from vinylidene fluoride, hexafluoropropylene, tetrafluoroethylene and, if appropriate, a further fluoroolefin or fluoroalkyl vinyl ether, wherein, if the content of (b1) in (b) is 0 to 15% by weight, a sealing layer composed of the fluorine-containing copolymer (b2) is also applied to the top layer. The composite material is particularly suitable for structural units belonging to the field of textile construction.

    LAMINATED PRODUCT
    5.
    发明专利

    公开(公告)号:DE3563926D1

    公开(公告)日:1988-09-01

    申请号:DE3563926

    申请日:1985-02-11

    Applicant: HOECHST AG

    Abstract: A composite material comprises (a) a substrate of soft PVC, (b) on 1 or both sides a covaring layer of (b1) 5-100 pts. wt. of a mixt. contg. 5-60 wt.% of soft or internally plasticised PVC, made up to 100% with an acrylate resin, and (b2) 95-0 wt.% of a copolymer contg. 50-20 wt.% of vinylidene fluoride, 10-30% of hexafluoropropylene, at least 30% of tetrafluoroethylene, and 0-5% of another fluoroolefin or fluoroalkyl vinyl ether. If the covering layer contains 0-15 wt.% of (b2), then there is (c) a sealing layer comprising only the F-contg. copolymers of (b2) over the covering layer.

    7.
    发明专利
    未知

    公开(公告)号:DE2523570A1

    公开(公告)日:1976-12-02

    申请号:DE2523570

    申请日:1975-05-28

    Applicant: HOECHST AG

    Abstract: Polymers on the basis of tetrafluoroethylene are produced in the presence of a redox system as catalyst consisting of a usual peroxidic compound as oxidizing component and a water-soluble nitrogen compound liberating in situ a diimine under the polymerization conditions. The polymers obtained can be processed, inter alia, into thick walled articles on a ram extruder or into large sintered block free from crack formation.

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