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    Improvements in profiled sealing means for expansion joints in structures
    11.
    发明专利
    Improvements in profiled sealing means for expansion joints in structures 未知

    公开(公告)号：GB741457A

    公开(公告)日：1955-12-07

    申请号：GB2464553

    申请日：1953-09-07

    Applicant: BASF AG

    Inventor： DANIEL WALTER ,  DAUR THEODOR ,  LANGE HEINZ ,  LINKE ROLAND

    IPC: C09J123/22

    Abstract: A composition comprising a polymer of isobutylene with a minimum content of 80 per cent of isobutylene, preferably of molecular weight 30,000 to 300,000, and at least 30 per cent of a silicate filler based on the total mixture is used as a sealing profile for expansion joints of structures, particularly of concrete or reinforced concrete. Copolymers of isobutylene with 0.5 to 20 per cent of butadiene, isoprene, pentadiene - 1,3, 1,3 - trimethylbutadiene - 1,3, hexadiene-1,3, 2-chlorobutadiene, cyclopentadiene, styrene, a -methyl styrene, vinyl ethers and dimethyl and diethyl fumarates, may be used. Suitable fillers are dispersed silicic acid, silica gel, siliceous chalk, kieselguhr, infusorial earth, feldspar, kaolin, bole, bentonite, asbestos, steatite, talc, cement, glass powder and shale or pumice powders. Activated carbon, zinc oxide, asphalt, stearic acid, mineral waxes, polyethylene, or polyisobutylene of molecular weight 10,000 or 15,000 may also be present in 15 to 25 per cent by weight. The profiles may be extruded or rolled and afterwards vulcanized with the aid of sulphur, mercaptobenzothiazole and tetramethylthiuram disulphide.

    Production of shaped articles of at least one thermoplastic material reinforced with at least one fibrous material
    20.
    发明专利
    Production of shaped articles of at least one thermoplastic material reinforced with at least one fibrous material 未知

    公开(公告)号：GB1146036A

    公开(公告)日：1969-03-19

    申请号：GB1918166

    申请日：1966-05-02

    Applicant: BASF AG

    Inventor： GAETH RUDOLF ,  ILGEMANN RUDOLF ,  LINKE ROLAND

    IPC: B29C67/00 ,  C08J5/04

    Abstract: 1,146,036. Forming sheet material; fibre reinforced laminates. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 May, 1966 [3 May, 1965], No. 19181/66. Headings B5A and B5W. Articles are made from a web of fibrereinforced thermoplastic material, in combination with one or more like webs or in combination with one or more solely thermoplastic or solely fibrous webs, by heating the webs to render the thermoplastic component mouldable and then shaping the webs upon a mould maintained at a temperature below the softening point of the thermoplastic component. Thermoplastic materials suitable for use are polystyrene, copolymers of styrene with acrylonitrile, P.V.C. vinylchloride copolymers, high and low pressure polyethylene, polypropylene polymethylmethacrylate, methacrylate copolymers and acrylate copolymers, polyamides or polycarbonates. Fibrous substances suitable for use include non-woven, woven or tufted fabrics, flocks, slivers, or felts of e.g. glass wool, rock wool, asbestos fibres wool, cotton or synthetic fibres. In Example 1, two layers of open jute fabric coated on one side with polythene and a layer of unbleached cotton coated on one side with a P.V.C. compound are used. Each layer is placed with its coated side upwards, the unbleached cotton forming the uppermost layer. In Example 2, a film of vinyl acetate/vinyl chloride copolymer supported by a pair of glass cloth fabrics backed by layers of the copolymer are used. In Example 3, ten sheets of weftless warp filaments of glass incorporated in a sheet of styrene/acrylonitrile copolymer interleaved with eleven glass cloth webs coated with the same copolymer are used. In Example 4, a laminate of a non-woven glass fabric bonded by a styrene acrylonitrile copolymer and a layer of such fabric coated with polymethylmethacrylate is used. In Example 6, printed cotton cloth coated with polymethyl methacrylate and an unbleached cotton cloth coated 'with polystyrene is used. In Example 7, four glass fibre fleeces each covered with a powdered layer of styrene/acrylonitrile copolymer are used.

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