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    Partly crosslinked polypropylene@-based plastics
    3.
    发明专利
    Partly crosslinked polypropylene@-based plastics 未知

    公开(公告)号：DE4219884A1

    公开(公告)日：1993-12-23

    申请号：DE4219884

    申请日：1992-06-17

    Applicant: BASF AG

    Inventor： MARCZINKE BERND LOTHAR DR ,  SCHWAGER HARALD DR ,  BROSIUS SIBYLLE DR ,  WERNER RAINER ALEXANDER DR ,  SCHERER GUENTER DR ,  HUBER KARL DIPL ING

    IPC: C08K5/3415 ,  C08L23/10 ,  C08F255/02 ,  C08L23/26 ,  C08L51/06

    Abstract: Partly crosslinked plastic materials with MFI 230/21.6 of 0.1-100 g/10 mins. (I) consist of (a) a polymer and (b) a bis-maleimide cpd. of formula (II). (I) are obtd. by reacting (a) with (b) at 180-280 deg.C and 1-100 bar with mean residence time of 0.2-10 mins. (a) comprises (a1) a polymer of 25-97 wt.% propylene copolymer with 0.1-15 wt.% 2-10C alkene units (A) and 3-75 wt.% other propylene copolymer with 15-80 wt.% 2-10C alkene units (B) or (a2) a polymer of 25-97 wt.% propylene homopolymer (C) and 3-75 wt.% (B) or (a3) a statistical copolymer of propylene with less than 15 wt.% 2-10C alkene units, or (a4) propylene homopolymer with MFI of 0.01-100 g/10 mins. In (II), R is 1-20C alkylene (opt. with in-chain O), 5-7C cycloalkylene or 6-15C arylene (both opt. substd. with 1-10C alkyl, 1-6C alkoxy and/or 1-4C dialkylamino gp(s). or a gp. of formula -R1-Z-R2- (with R1, R2 = 1-10C alkyleme, 5-7C cycloalkylene or 6-10C arylene (opt. substd. as for R), Z = 1-10C alkylene, 1-4C dialkylamino, O or SO2).

    Continuous prodn. of polyisobutylene-polymer blends - is simple and cost effective and produces prod. with good mechanical properties
    5.
    发明专利
    Continuous prodn. of polyisobutylene-polymer blends - is simple and cost effective and produces prod. with good mechanical properties 未知

    公开(公告)号：DE4319181A1

    公开(公告)日：1994-01-27

    申请号：DE4319181

    申请日：1993-06-09

    Applicant: BASF AG

    Inventor： GROPPER HANS DR ,  KOLK ERICH DR ,  FAUTH KARL-HEINZ ,  ISBARN GUNTHER DR ,  SCHERER GUENTER DR

    IPC: C08F10/10 ,  C08J3/00 ,  C08L23/22 ,  C08L23/20 ,  C08F6/10 ,  C08F110/10 ,  C08J3/20

    Abstract: A continuous process for the prodn. of blends of polyisobutylene (I) and at least another polymer (II) is claimed in which (a) isobutylene is continuously polymerised in pure, dry liq. ethylene (b) the resulting (I) is fed directly to a degassing extruder where it is melted and degassed and (c) (I) is mixed with (II) resulting in a blend characterised by (d) (II) being directly dosed in the required amt. into the degassing extruder and mixed there with (I). Also claimed is a continuous process for the prodn. of a mixt. of (I) with fillers and/or additives whereby after steps (a) and (b) there follows steps (C') (I) is mixed with fillers and/or additives whereby (d') the fillers and/or additives are directly dosed in the required amt. into the degassing extruder and mixed there with (I). (II) is a thermoplastic, pref. a polyolefin and is mixed with (I) either before or after the degassing. Fillers and/or additives are used as well as (II). USE/ADVANTAGE - The process is useful for the prepn. of blends and/or mixts of (I) with (II) and fillers and/or additives. The process enables blends and mixts. to be prepd. in a simpler and more cost effective manner than prior art.

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