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    UPGRADED RECYLED POLYPROPYLENE RICH POLYOLEFIN MATERIAL
    12.
    发明申请
    UPGRADED RECYLED POLYPROPYLENE RICH POLYOLEFIN MATERIAL 有权

    公开(公告)号：US20220025150A1

    公开(公告)日：2022-01-27

    申请号：US17277651

    申请日：2019-10-02

    申请人： BOREALIS AG

    发明人： Susanne Kahlen ,  Michael Jerabek

    IPC分类号： C08J11/04 ,  C08L23/14 ,  C08L23/04 ,  C08L25/06 ,  C08K3/34 ,  C08L77/00

    摘要： A polypropylene-polyethylene composition obtainable by blending a) 80 to 97 wt.-% of a blend (A) comprising A-1) polypropylene and A-2) polyethylene, wherein the weight ratio of polypropylene to polyethylene is from 9:1 to 13:7, and wherein blend (A) is a recycled material, which is recovered from waste plastic derived from post-consumer and/or post-industrial waste; and b) 3 to 20 wt.-% of a compatibilizer (B) being a heterophasic random copolymer comprising a random polypropylene copolymer matrix phase and an elastomer phase dispersed therein, whereby the heterophasic random copolymer has—a xylene insoluble content XCI of 65 to 88 wt.-% (ISO 16152, led, 25° C.), —a xylene soluble content XCS of 12 to 35 wt.-% (ISO 16152, led, 25° C.), the XCS fraction having an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135° C.) of 1.2 dl/g to less than 3.0 dl/g, and—a flexural modulus of from 300 to 600 MPa (ISO 178, measured on injection moulded specimens, 23° C.); and wherein, the ratio of MFR2 (blend (A))/MFR2 (compatibilizer(B)) (ISO1133, 2.16 kg load), is in the range of from 1.5 to 3.5 g/10 min.

    THERMOPLASTIC POLYURETHANE FROM RECYCLED RAW MATERIALS
    18.
    发明申请
    THERMOPLASTIC POLYURETHANE FROM RECYCLED RAW MATERIALS 有权

    公开(公告)号：US20210017326A1

    公开(公告)日：2021-01-21

    申请号：US16980084

    申请日：2019-03-12

    申请人： BASF SE

    发明人： Frank PRISSOK ,  Elmar POESELT ,  Dirk KEMPFERT ,  Lionel GEHRINGER ,  Juergen WEISER ,  Matthias GOLDBECK

    IPC分类号： C08G18/50 ,  C08J11/04 ,  C08G18/76 ,  C08F4/80

    摘要： The present invention relates to a process for producing a thermoplastic polyurethane reacting at least one thermoplastic polyurethane (TPU-1) or a polyurethane mixture comprising a thermoplastic polyurethane (TPU-1) with at least one compound (V1) comprising two hydroxyl groups to obtain a mixture (G-a) comprising a thermoplastic polyurethane (TPU-2) and the reaction of the mixture (G-a) with a mixture (G-b) comprising an isocyanate composition (ZI) comprising at least one diisocyanate and optionally and a polyol composition (ZP) comprising at least one polyol (P2) to obtain a thermoplastic polyurethane (TPU target), wherein the proportion of the employed components (ZI) and (ZP) is matched to the hard segment content of the employed thermoplastic polyurethane (TPU-1), (V1) and the hard segment content of the thermoplastic polyurethane (TPU target). The invention further relates to a thermoplastic polyurethane obtained or obtainable by such a process and to the use thereof for producing extruded, injection molded and pressed articles as well as foams, cable sheathings, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, soles, sporting goods, shoes, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3D printing, medicine and consumer goods.