公开(公告)号：US09701772B2

公开(公告)日：2017-07-11

申请号：US14906627

申请日：2014-07-22

Applicant: BOREALIS AG

Inventor： Luigi Resconi ,  Wilfried Töltsch ,  Wang Jingbo

IPC: C08F210/16 ,  C08F210/06 ,  C08F2/12 ,  C08F2/34 ,  C08F4/643 ,  C08F4/645 ,  C08F4/659 ,  C08F2/38

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F210/06 ,  C08F2410/01 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F10/00 ,  C08F4/65927

Abstract: A process for the preparation of a propylene copolymer, preferably a heterophasic propylene copolymer, in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a slurry polymerisation step, polymerising propylene and optionally at least one C2-10 alpha olefin comonomer; and subsequently (II) in a gas polymerisation step polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, in the presence of catalyst and polymer from step (I); (III) in a second gas polymerisation step, polymerising propylene and at least one C2-10 alpha olefin comonomer in the presence of the catalyst and polymer from step (II); wherein said catalyst comprises (i) a metallocene complex of a group (IV) metal, said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron based cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.

公开(公告)号：US20210002397A1

公开(公告)日：2021-01-07

申请号：US16979379

申请日：2019-05-07

Applicant: BOREALIS AG

Inventor： Matthias Hoff ,  Luigi Resconi ,  Simon Schwarzenberger ,  Wilfried Töltsch

IPC: C08F210/06 ,  C08F210/08 ,  C08F210/14 ,  C08F210/02 ,  C08F2/00 ,  C08F2/34 ,  C08F4/659 ,  C08F4/6592

Abstract: The present invention relates to a process for producing a copolymer of propylene, optionally ethylene, and at least one comonomer selected from alpha olefins having from 4 to 12 carbon atoms using a specific class of metallocene complexes in combination with a cocatalyst system comprising a boron containing cocatalyst and an aluminoxane cocatalyst, preferably in a multistage polymerization process including a gas phase polymerization step.

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：US10287375B2

公开(公告)日：2019-05-14

申请号：US14897150

申请日：2014-06-09

Applicant: BOREALIS AG

Inventor： Wilfried Töltsch ,  Luigi Resconi ,  Kristin Reichelt

IPC: C08F2/01 ,  C08F4/6592 ,  C08F210/06 ,  C08F210/16 ,  C08F2/00 ,  C08F4/659 ,  C08F4/70 ,  C08L23/12

Abstract: A process for the preparation of a propylene polymer in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a prepolymerisation step prepolymerising a single site catalyst in the presence of propylene and optionally at least one C2-10 alpha olefin comonomer and in the presence of hydrogen or in the absence of hydrogen; (II) in a slurry polymerisation step, polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, with the pre-polymerised catalyst of step (I) in the presence of hydrogen; and subsequently (III) in a gas polymerisation step polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, in the presence of catalyst and polymer from step (II) and optionally in the presence of hydrogen so as to form a propylene homopolymer or copolymer; wherein the amount of hydrogen fed to the pre-polymerisation step (I) is at most 15% of the total amount of hydrogen fed to steps (I) and (II) of the polymerisation process.

公开(公告)号：US09670347B2

公开(公告)日：2017-06-06

申请号：US14911299

申请日：2014-07-14

Applicant: BOREALIS AG

Inventor： Wilfried Töltsch ,  Luigi Resconi ,  Kristin Reichelt

IPC: C08L23/00 ,  C08L23/14 ,  C08L23/12

CPC classification number: C08L23/14 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/06 ,  C08L23/12 ,  C08L23/142 ,  C08L2205/025 ,  C08L2308/00 ,  C08F2/001 ,  C08F4/6492 ,  C08F210/16 ,  C08F2500/14 ,  C08F2500/12 ,  C08F2500/17

Abstract: Polypropylene composition comprising comonomer units derived from ethylene in an amount of from 9.0 to 52.0 mol-% and comonomer units derived from a higher a-olefin in an amount of from 0.4 to 3.0 mol-%, wherein said polypropylene composition has an amount of xylene cold solubles of at least 30 wt.-%, wherein further the xylene cold soluble fraction has an ethylene content of from 20.0 to 80.0 mol-% and a higher a-olefin content from 0.1 to 1.5 mol-%.

公开(公告)号：US20140079899A1

公开(公告)日：2014-03-20

申请号：US14084852

申请日：2013-11-20

Applicant: Borealis AG

Inventor： Klaus Bernreitner ,  Manfred Stadlbauer ,  Norbert Hafner ,  Wilfried Töltsch ,  Pirjo Jääskeläinen

IPC: C08F210/14 ,  C08L23/20

CPC classification number: C08F210/14 ,  C08F10/00 ,  C08F210/06 ,  C08L23/20 ,  F16L9/127 ,  Y10T428/139 ,  C08F4/651 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/13 ,  C08F2500/21 ,  C08F2500/11

Abstract: Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the β-modification.

Abstract translation: 丙烯共聚物a。 包含至少1-己烯作为共聚单体，b。 共聚单体含量为1.0-3.0重量％，c。 具有等于​​或低于2.5重量％的二甲苯可溶物组分，和d。 在“改性”中部分结晶。