公开(公告)号：US20200325303A1

公开(公告)日：2020-10-15

申请号：US16753218

申请日：2018-12-18

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Wilfried Töltsch ,  Luigi Maria Resconi ,  Friedrich Berger

IPC: C08K5/1575

Abstract: A propylene copolymer composition comprising A) a propylene butylene copolymer which is —free of phthalicacid esters as well as decomposition products thereof; —obtained by a Ziegler-Natta catalyst and B) at least one α-nucleating agent, the propylene copolymer composition having —a MFR (2.16 kg/210° C.) in the range of 2 to 100 g/10 min —a melting point Tm(1) of less than 140° C. —a melting point Tm(2) of at least 150° C., said Tm(2) being associated with more than 75% of the total melting enthalpy and whereby the propylene copolymer —has monomer units derived from a) propylenein an amount of 90.0-98.0 mol.-% b) butylenein an amount of 2.0-10.0 mol.-% with respect to the total weight of the propylene butylene copolymer —an isotacticity mm % as determined by 13C NiNMR spectroscopy of below 99.0%; and —a Koenig-B parameter with respect to butylene as determined by 13C NMR spectroscopy of more than 0.98.

公开(公告)号：US20200317895A1

公开(公告)日：2020-10-08

申请号：US16641945

申请日：2018-08-30

Applicant: BOREALIS AG

Inventor： Markus Gahleitner ,  Jingbo Wang ,  Klaus Bernreitner ,  Peter Niedersuss

IPC: C08L23/12

Abstract: New polypropylene composition which provides an excellent balance between mechanical properties, optical behaviour and low amounts of extractable substances combined with good retortability.

公开(公告)号：US20200087428A1

公开(公告)日：2020-03-19

申请号：US16658366

申请日：2019-10-21

Applicant: BOREALIS AG

Inventor： Joachim Fiebig ,  Henk Van Paridon ,  Jingbo Wang ,  Markus Gahleitner

IPC: C08F8/50 ,  C08K5/3435 ,  C08K5/14 ,  D01D1/02

Abstract: Synergistic visbreaking composition of peroxide and a hydroxylamine ester for increasing the visbreaking efficiency for polypropylene polymers at melt extrusion temperatures below 250° C. and its use in visbreaking polypropylene. The present invention is furthermore related to the use of such visbroken polypropylene polymers for producing melt blown non-wovens with improved barrier properties.

公开(公告)号：US20190263948A1

公开(公告)日：2019-08-29

申请号：US16305755

申请日：2017-06-12

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Elisabeth Potter

IPC: C08F210/16

Abstract: The present invention relates to nucleated propylene-ethylene-butylene-terpolymers comprising propylene, butylene, and ethylene, having improved stiffness, better impact behaviour and improved optical properties such as low haze, and low amounts of soluble or extractable fractions.

公开(公告)号：US20190169409A1

公开(公告)日：2019-06-06

申请号：US16303341

申请日：2017-06-02

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Petar Doshev ,  Georg Grestenberger

IPC: C08L23/12 ,  C08F110/06

CPC classification number: C08L23/12 ,  C08F4/6492 ,  C08F4/651 ,  C08F110/06 ,  C08L2203/12 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/02 ,  C08F2500/02 ,  C08F2500/12

Abstract: The present invention is directed to a polypropylene composition, said polypropylene composition comprising two different polypropylene fractions (PP1) and (PP2), wherein the first polypropylene (PP1) has a weight molecular weight Mw in the range of above 45 kg/mol to below 65 kg/mol and a melting temperature of at least 140° C.

公开(公告)号：US10280285B2

公开(公告)日：2019-05-07

申请号：US15552209

申请日：2016-02-23

Applicant: BOREALIS AG

Inventor： Juliane Braun ,  Davide Tranchida ,  Jingbo Wang ,  Markus Gahleitner

IPC: C08K5/00 ,  C08F210/06 ,  B29C45/00 ,  C08L23/14 ,  C08L23/10 ,  C08L23/12 ,  C08F2/00 ,  C08F4/6192

Abstract: Propylene-ethylene random copolymers with improved long-term mechanical properties, especially improved impact strength retention, their manufacture as well as their use, e.g. for the production of moulded articles, particularly injection moulded articles, such as thin-walled plastic containers for packaging.

公开(公告)号：US10266671B2

公开(公告)日：2019-04-23

申请号：US15741661

申请日：2016-07-07

Applicant: BOREALIS AG

Inventor： Ann Watson ,  Bill Fajardo ,  Ted Gormanos ,  Markus Gahleitner ,  Jingbo Wang ,  Hermann Braun ,  Fredrik Bergfors

IPC: C08K3/34 ,  C08K5/105 ,  C08K5/3492 ,  G02B6/44 ,  C08L23/12

Abstract: The invention relates to a tube comprising a heterophasic polypropylene composition comprising a heterophasic polypropylene copolymer with an antioxidant comprising a sterically hindered phenol. The heterophasic polypropylene copolymer has the relative amount of crystal line polypropylene above 20 wt %. the relative amount of xylene cold solubles (XCS) fraction is at least 10 wt % and the relative content of isolated ethylene sequences (I(E)) of the XCS fulfills the equation: I(E)

公开(公告)号：US10227473B2

公开(公告)日：2019-03-12

申请号：US15552191

申请日：2016-02-23

Applicant: BOREALIS AG

Inventor： Juliane Braun ,  Luca Boragno ,  Jingbo Wang ,  Pauli Leskinen ,  Johanna Lilja ,  Markus Gahleitner

IPC: C08L23/16 ,  C08K5/00 ,  C08L23/14 ,  C08F210/06 ,  C08F2/00 ,  C08F4/6192

Abstract: Propylene-ethylene random copolymers with improved long-term mechanical properties, especially improved impact strength retention, their manufacture as well as their use, e.g. for the production of moulded articles, particularly injection moulded articles, such as thin-walled plastic containers for packaging.

公开(公告)号：US10189979B2

公开(公告)日：2019-01-29

申请号：US15324803

申请日：2015-07-06

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Wilhelmus Henricus Adolf Sars ,  Joachim Fiebig ,  Henk Van Paridon ,  Markus Gahleitner

IPC: C08L23/12 ,  D01F6/06 ,  D01D5/098 ,  D01F1/10 ,  C08J3/22 ,  D04H1/4291 ,  D04H1/56 ,  D04H1/42 ,  D04H1/54 ,  C08K5/00

Abstract: The present invention is directed to a new polypropylene composition comprising a propylene homopolymer and a polymeric nucleating agent, to melt-blown fibers comprising the polypropylene composition, to a melt-blown web comprising the melt-blown fibers and/or the polypropylene composition, to an article comprising the melt-blown fibers and/or the melt-blown web as well as to the use of the polypropylene composition for improving the relation between pressure drop and hydrohead of a melt-blown web and for improving the thermo-mechanical properties of a melt-blown web in machine direction (MD) and transverse direction (TD).

公开(公告)号：US09828698B2

公开(公告)日：2017-11-28

申请号：US15039107

申请日：2014-12-01

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Katja Klimke ,  Joachim Fiebig ,  Henk Van Paridon ,  Anita Luyten ,  Markus Gahleitner

IPC: D01F6/06 ,  C08F110/06 ,  C08L23/12 ,  D01D5/098 ,  D04H1/4291 ,  D04H1/544 ,  D04H3/005

CPC classification number: D01F6/06 ,  C08F110/06 ,  C08L23/12 ,  C08L2203/12 ,  C08L2205/025 ,  D01D5/0985 ,  D04H1/4291 ,  D04H1/544 ,  D04H3/005 ,  C08F4/651 ,  C08F4/6546 ,  C08F4/6492 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/15

Abstract: The present invention is directed to a new polypropylene composition comprising a propylene homopolymer, to a melt-blown fiber comprising the polypropylene composition, to a melt blown web comprising the melt blown fiber and/or the polypropylene composition, to an article comprising the melt blown fiber and/or the melt blown web as well as to the use of the polypropylene composition for improving the relation between pressure drop and hydrohead of a melt-blown web.