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    2.
    发明专利
    未知

    公开(公告)号：SE310945B

    公开(公告)日：1969-05-19

    申请号：SE1393663

    申请日：1963-12-13

    Applicant: BASF AG

    Inventor： BAYERLEIN F ,  KELLER R ,  MAHLING D ,  WILHELM H ,  BECKER P ,  GAJEK C

    IPC: C08K5/16 ,  C08K5/20 ,  C08K5/205 ,  C08F29/02

    Abstract: A moulding material comprises a thermoplastic polymer of ethylenically unsaturated compounds and a compound of formula R-NH-COOR1 where R and R1 are C1- 20 aliphatic or unsubstituted or substituted C6- 20 aromatic groups. The polymer may be a copolymer of ethylene and vinyl acetate, ethyl acrylate or acrylonitrile, or polyethylene. The compound may be hexamethylene - 1,6 - bis - (alkyl or cycloalkylurethane), phenyl - stearyl - urethane, toluene-2,4 - bis - (n - octylurethane) or triphenylmethane - 4,41,411 - trioctylurethane and may be present in an amount of 0.01-2%. The moulding material may be mixed on rollers, on a calender or in an extruder, and may be granulated and then processed into a sheet. The composition may contain methanol as a solvent for the urethane.

    6.
    发明专利
    未知

    公开(公告)号：SE362031B

    公开(公告)日：1973-11-26

    申请号：SE1182869

    申请日：1969-08-26

    Applicant: BASF AG

    Inventor： MUELLER TAMM H ,  FRIELINGSDORF H ,  MAHLING D

    IPC: B29C39/12 ,  B29C63/00 ,  B32B15/08 ,  B32B27/32 ,  B32B37/15 ,  D06N7/00 ,  B29D9/00 ,  B29D9/08 ,  C08J1/42 ,  E04C2/26

    Abstract: A process for the production of sandwich constructions consisting of (a) an inner ply of polyethylene; (b) adhesion-promoting interlayers applied to both sides of the inner ply and (c) outer plies of metal applied to the two interlayers. It is a characteristic feature of the invention that sheeting is prepared continuously from a special polyethylene by means of a screw extruder at a specific temperature of the material, this sheeting is covered on both sides with a film of a special polymer by means of a pair of rollers, the resultant laminate is then covered continuously by means of a pair of rollers at a specific temperature of the material with metal sheeting having a specific temperature and the whole is combined to form a sandwich panel under a specific roller pressure. The process gives sandwich constructions having particularly good chemical and physical properties in a simple way.

    7.
    发明专利
    未知

    公开(公告)号：SE362030B

    公开(公告)日：1973-11-26

    申请号：SE1170769

    申请日：1969-08-22

    Applicant: BASF AG

    Inventor： FRIELINGSDORF H ,  MUELLER TAMM H ,  MAHLING D

    IPC: B21D49/00 ,  B32B15/08 ,  B32B27/00 ,  B29D9/00 ,  B29D9/08 ,  C08J1/42 ,  E04C2/26

    Abstract: 1,269,258. Laminates. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 Aug., 1969 [27 Aug., 1968], No. 42446/69. Heading B5N. A method for the production of a flat structural sandwich comprises continuously preparing sheeting 4 by means of a screw extruder 2 at a material temperature of from 120‹ to 220‹ C. from a polyethylene having a density of from 0.918 to 0.930 g./cm. 3 and melt index (ASTM D 1238-65 T) of from 0.2 to 5, continuously covering the sheeting on each surface by a pair of rollers 7 with a film 6 having a thickness of 0À01 to 0.2 mm. of a terpolymer containing 60 to 90% by weight of ethylene units, 0.5 to 20% by weight of units of an ethylenically unsaturated carboxylic acid e.g. acrylic acid and 0À5 to 20% by weight of units of an ester of an ethylenically unsaturated carboxylic acid e.g. t-butyl acrylate, the resultant laminate being continuously covered on each surface by a pair of rollers 9 with metal sheeting 8 e.g. aluminium, copper, brass or steel, having a thickness of from 0.05 to 2.5 mm. and at a temperature of from 100‹ to 250‹ C., the whole being bonded into a sandwich construction by the rollers 9 under a pressure of from 5 to 50 kp/cm., the product being cooled in cooling zone 10 to a temperature of less than 60‹ C. and cut into panels by cutting means 11.

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