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    DISSOLUTION PROCESS AND APPARATUS FOR A SOLVENT BASED RECYCLING PROCESS OF POLYOLEFINS
    2.
    发明公开
    DISSOLUTION PROCESS AND APPARATUS FOR A SOLVENT BASED RECYCLING PROCESS OF POLYOLEFINS 审中-公开

    公开(公告)号：EP4074483A1

    公开(公告)日：2022-10-19

    申请号：EP21168658.9

    申请日：2021-04-15

    申请人： Borealis AG

    发明人： AL-HAJ ALI, Mohammad ,  SLEIJSTER, Henry ,  DEBOEL, Tom ,  SOBCZAK, Lukas

    IPC分类号： B29B17/02 ,  C08J11/08

    摘要： A dissolution apparatus for dissolving from a waste polyolefin material a polyolefin in a solvent yielding a polyolefin solution slurry), the polyolefin solution slurry comprising a polyolefin solution and undissolved residues, for a continuous polyolefin recycling process, the dissolution apparatus comprising at least one feeding device selected from a list consisting of a dry feeding device, a wet feeding device, a melt feeding device, and a solution feeding device, at least one dissolution device, wherein the at least one dissolution device has at least one first inlet for introducing the waste polyolefin material fluidly connected to an outlet of the at least one feeding device, and wherein the at least one dissolution device has at least one second inlet for introducing the solvent, and wherein the at least one dissolution device has at least one outlet for withdrawing the polyolefin solution slurry, and wherein the dissolution device comprises a vessel comprising a stirrer.

    MODIFICATION PROCESS FOR POLYMER RECYCLATES
    5.
    发明公开
    MODIFICATION PROCESS FOR POLYMER RECYCLATES 审中-公开

    公开(公告)号：EP4279538A1

    公开(公告)日：2023-11-22

    申请号：EP22173567.3

    申请日：2022-05-16

    申请人： Borealis AG

    发明人： TOULOUPIDIS, Vasileios ,  SOBCZAK, Lukas ,  MUSTER, Udo ,  TRAN, Tuan Anh ,  DENIFL, Peter ,  BRAUN, Hermann ,  ALBRECHT, Andreas ,  ABBASI, Mahdi ,  BARROSO, Vitor ,  KNOGLER, Bernhard ,  HOFSTADLER, Katrin ,  GAHLEITNER, Markus

    IPC分类号： C08J3/24 ,  C08L23/12 ,  C08F255/04 ,  C08J11/10

    摘要： The present invention relates to a process for modifying a post-consumer recycled polyolefin composition comprising the steps of (A) providing a post-consumer recycled polyolefin composition having a starting melt flow rate MFR 2 (1), determined according to ISO 1133 at 2.16 kg load, 230 °C, in the range of from 1.0 to 100 g/10 min, and comprising, based on the total weight of the post-consumer recycled polyolefin composition, determined by FTIR spectroscopy, (a) at least 50 wt.-% of one or more propylene (co)polymer component(s) and (b) up to 50 wt.-% of one or more ethylene (co)polymer component(s); (B) adding 0.10 to 1.50 wt.-%, based on the total weight of the post-consumer recycled polyolefin composition, of a radical initiator to the post-consumer recycled polyolefin composition and optionally mixing the components to form a mixture (1); (C) adding 0.05 to 0.50 wt.-%, based on the total weight of the post-consumer recycled polyolefin composition, of a twofold unsaturated hydrocarbon compound having the general formula (1) CH 2 =CH-(R)-CH=CH 2 , wherein R may be present or absent, and if being present, R is an aliphatic or aromatic hydrocarbon group comprising from 1 to 6 carbon atoms, and mixing the components to form a mixture (2); and (D) extruding the mixture (2) at a temperature in the range of from 180 to 300 °C to obtain a modified polyolefin composition having a final melt flow rate MFR 2 (2), determined according to ISO 1133 at 2.16 kg load, 230 °C; wherein the ratio of MFR 2 (2) : MFR 2 (1) is below 1.00. The present invention also relates to a modified polyolefin composition obtained by the process, as well as to the use of the modified polyolefin composition in the manufacture of an article, and to a respective article.

    COMPOSITE MATERIAL CONTAINING BAMBOO-BASED FIBERS AND HAVING HIGH IMPACT STRENGTH
    8.
    发明公开
    COMPOSITE MATERIAL CONTAINING BAMBOO-BASED FIBERS AND HAVING HIGH IMPACT STRENGTH 审中-公开

    公开(公告)号：EP4461769A1

    公开(公告)日：2024-11-13

    申请号：EP23172048.3

    申请日：2023-05-08

    申请人： Borealis AG

    发明人： LUMMERSTORFER, Thomas ,  PRETSCHUH, Claudia ,  LESSLHUMER, Jürgen ,  SOBCZAK, Lukas ,  GAHLEITNER, Markus ,  GRESTENBERGER, Georg

    IPC分类号： C08L23/12

    摘要： The present disclosure provides a composite material comprising, relative to the total weight of the composite material, (a) from 25.0 to 55.0 wt.-% of a first heterophasic propylene-ethylene copolymer (HECO1), (b) from 10.0 to 30.0 wt.-% of a second heterophasic propylene-ethylene copolymer (HECO2), (c) from 5.0 to 15.0 wt.-% of an ethylene-based elastomer, (d) from 5.0 to 30.0 wt.-% of bamboo-based fibers, (e) from 1.0 to 5.0 wt.-% of a compatibilizer, (f) from 0.1 to 5.0 wt.-% of additives, and (g) optionally from 0.1 to 15.0 wt.-% of a high density polyethylene. An injection molded article comprising the composite material is also disclosed. Furthermore, the use of bamboo-based fibers is provided for reinforcing a polypropylene-based composition comprising at least a first heterophasic propylene-ethylene copolymer (HECO1), a second heterophasic propylene-ethylene copolymer (HECO2), an ethylene-based elastomer, a compatibilizer and additives.