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    C2C3 RANDOM COPOLYMER
    44.
    发明申请
    C2C3 RANDOM COPOLYMER 有权

    公开(公告)号：US20220227901A1

    公开(公告)日：2022-07-21

    申请号：US17613328

    申请日：2020-05-20

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Cornelia Tranninger

    IPC: C08F210/06 ,  C08L23/14

    Abstract: New C2C3 random copolymer (RACO), which shows improved sealing behaviour due to low sealing initiation temperature (SIT) and high hot tack force. In addition, the inventive C2C3 random copolymer (RACO) shows an excellent sterilization behaviour, i.e. retention of low haze level after sterilization. The present invention is furthermore related to the manufacture of said C2C3 random copolymer (RACO) and to its use.

    LONG CHAIN BRANCHED PROPYLENE POLYMER COMPOSITION
    45.
    发明申请
    LONG CHAIN BRANCHED PROPYLENE POLYMER COMPOSITION 有权

    公开(公告)号：US20220204665A1

    公开(公告)日：2022-06-30

    申请号：US17623300

    申请日：2020-06-19

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Pauli Leskinen ,  Klaus Bernreitner ,  Katja Ellen Klimke ,  Markku Vahteri

    IPC: C08F210/06

    Abstract: The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a crystallization temperature Tc of less than 115° C., b) a melting temperature Tm of less than 155° C. c) a F30 melt strength of from 5.0 to less than 30.0 cN, and d) a V30 melting extensibility of more than 190 mm/s, a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition, the use of said propylene polymer composition for producing an article.

    Polyolefin composition with improved balance of properties
    46.
    发明授权
    Polyolefin composition with improved balance of properties 有权

    公开(公告)号：US11370905B2

    公开(公告)日：2022-06-28

    申请号：US17289585

    申请日：2019-10-24

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Yi Liu

    IPC: C08L23/16 ,  C08L23/14 ,  B29C45/00 ,  B29K23/00 ,  B29K105/00

    Abstract: The present invention is directed to a polyolefin composition comprising a blend of a heterophasic polypropylene composition and 5.0 to 30.0 wt % of an ethylene homo- or copolymer, the ethylene homo- or copolymer having a density of at least 941 kg/m3 and a melt flow rate MFR21 of 1 to 10 g/10 min. The heterophasic polypropylene composition comprises a propylene homopolymer or a propylene ethylene random copolymer and an elastomeric ethylene propylene rubber, and is characterized by 75.0 to 95.0 wt % of a crystalline fraction having an ethylene content of up to 4.0 wt % and an MFR2 of 0.1 to 100 g/10 min, and 5.0 to 25.0 wt % of a soluble fraction having an ethylene content of 10.0 to 70.0 wt % and an intrinsic viscosity of 1.0 to 4.0 dl/kg, wherein the crystalline fraction and the soluble fraction are determined in 1,2,4-trichlorobenzene at 40° C.

    POLYOLEFIN COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES
    49.
    发明申请
    POLYOLEFIN COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES 有权

    公开(公告)号：US20210355308A1

    公开(公告)日：2021-11-18

    申请号：US17289585

    申请日：2019-10-24

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Yi Liu

    IPC: C08L23/16

    Abstract: The present invention is directed to a polyolefin composition comprising a blend of a heterophasic polypropylene composition and 5.0 to 30.0 wt % of an ethylene homo- or copolymer, the ethylene homo- or copolymer having a density of at least 941 kg/m3 and a melt flow rate MFR21 of 1 to 10 g/10 min. The heterophasic polypropylene composition comprises a propylene homopolymer or a propylene ethylene random copolymer and an elastomeric ethylene propylene rubber, and is characterized by 75.0 to 95.0 wt % of a crystalline fraction having an ethylene content of up to 4.0 wt % and an MFR2 of 0.1 to 100 g/10 min, and 5.0 to 25.0 wt % of a soluble fraction having an ethylene content of 10.0 to 70.0 wt % and an intrinsic viscosity of 1.0 to 4.0 dl/kg, wherein the crystalline fraction and the soluble fraction are determined in 1,2,4-trichlorobenzene at 40° C.

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