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    Production of sheeting and film
    1.
    发明授权
    Production of sheeting and film 失效
    制作和电影

    公开(公告)号：US3558762A

    公开(公告)日：1971-01-26

    申请号：US3558762D

    申请日：1969-03-03

    Applicant: BASF AG

    Inventor： KOEHNLEIN ERNST ,  BAUER PETER ,  STANGE KARL

    IPC: B29C47/00 ,  B29D23/04

    CPC classification number: B29C47/0009 ,  B29C47/0026

    Abstract: A PROCESSS FOR THE PRODUCTION OF SHEETING OR FILM WHEREIN A MIXTURE IS PREPARED FROM (A) A POLYISOBUTYLENE, (B) AN ETHYLENE POLYMER, (C) A FILLER, (D) A CARBON BLACK AND (E) A SLIP ADDITIVE AT ELEVATED TEMPERATURE AND THIS MIXTURE, WHILE STILL HOT, IS SUPPLIED TO AN EXTRUDER AND SHAPED INTO TUBULAR SHEETING AND FILM AT ELEVATED TEMPERATURE.

    Sheeting and Film Based on Polyisobutylene
    4.
    发明专利
    Sheeting and Film Based on Polyisobutylene 未知

    公开(公告)号：GB1156196A

    公开(公告)日：1969-06-25

    申请号：GB5062566

    申请日：1966-11-11

    Applicant: BASF AG

    Inventor： KOEHNLEIN ERNST ,  STANGE KARL

    IPC: C08K3/04 ,  C08K3/26 ,  C08L23/22

    Abstract: 1,156,196. Polymer sheets. BADISCHE ANILIN- & SODA-FABRIK A.G. 11 Nov., 1966 [13 Nov., 1965], No. 50625/66. Heading C3P. Polymer sheets are made of compositions comprising by weight 100 parts of polyisobutylene having an intrinsic viscosity of more than 5À0 dl./g., 200 to 250 parts of chalk, 20 to 50 parts of a polymer of ethylene or propylene and 25 to 35 parts of carbon black. Specified polymers are polyethylene, polypropylene and copolymers of ethylene with vinyl acetate or propionate or with ethyl, butyl or isobutyl acrylate. The compositions may also contain di - t. - butylphenol sulphide, 2,2 - bis - (2- methyl - 5 - t. - butyl - 4 - hydroxyphenyl) butane, N phenyl - N 1 - cyclohexyl - p - phenylene diamine, stearic acid, zinc stearate or calcium stearate. The sheets may be used in building, e.g. as damp courses and roof coverings.

    Two layer laminates of polypropylene and polyethylene
    5.
    发明专利
    Two layer laminates of polypropylene and polyethylene 未知

    公开(公告)号：GB1046797A

    公开(公告)日：1966-10-26

    申请号：GB3284863

    申请日：1963-08-20

    Applicant: BASF AG

    Inventor： SCHWARZ ADOLF ,  KOEHNLEIN ERNST

    IPC: B29C55/02 ,  B32B27/00

    Abstract: 1,046,797. Laminates and laminating. BADISCHE - ANILIN - & SODA - FABRIK A.G. Aug. 20, 1963 [Sept. 1, 1962], No. 32848/63. Heading B5N. A laminate of a polyethylene sheet and a polypropylene sheet is biaxially stretched in the temperature range between the crystalline melting point and 20‹ C. below this point. Preferably the polypropylene has a viscosity of 1À5 to 3 (100 ml/g.) measured in 0À1% decahydronaphthalene solution at 130‹ C. and the polyethylene has a density between 0À98 and 0À90 g/cm. 3 and a melt index of MI 2 . 190 = 0À1 to 5. The laminate may be produced by extruding isotactic polypropylene and polyethylene from concentric dies and blowing up the tubular double-walled film so formed, then cutting, then biaxially stretching the resulting sheet. Alternatively the layers may be extruded as flat sheets from a slot die. Two strip laminates may be bonded with the polyethylene surfaces contacting.

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