公开(公告)号：US10266624B2

公开(公告)日：2019-04-23

申请号：US15538899

申请日：2015-12-28

Applicant: BOREALIS AG

Inventor： Wilfried Toltsch ,  Luigi Resconi

IPC: C08F210/06 ,  C08J5/18

Abstract: The present invention relates to an olefin polymerization process, wherein propylene and 1-butene and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst system so as to obtain a polypropylene, wherein the polypropylene comprises 1-butene-derived comonomer units in an amount of from 0.5 to 15 wt % and optionally ethylene-derived comonomer units in an amount of up to 3 wt %, and the Ziegler-Natta catalyst system comprises an external donor of the formula (I) (R3)z(R2O)YSi(R1)X  (I).

公开(公告)号：US20180134826A1

公开(公告)日：2018-05-17

申请号：US15580260

申请日：2016-06-29

Applicant: BOREALIS AG

Inventor： Luigi Resconi ,  Pavel Shutov ,  Wilfried Toltsch

IPC: C08F210/06 ,  C08F210/16

CPC classification number: C08F210/06 ,  C08F210/16 ,  C08F2800/20 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/26 ,  C08F4/6494 ,  C08F4/6465 ,  C08F4/6546 ,  C08F4/6492

Abstract: The present invention relates to an olefin polymerization process, wherein propylene and a C4 to C10 a-olefin, preferably 1-butene and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst so as to obtain a polypropylene, wherein the polypropylene comprises C4 to C10 a-olefin, preferably 1-butene-derived comonomer units in an amount of from 0.5 wt % to 15 wt % and ethylene-derived comonomer units in an amount of 0 wt % to 3 wt %, and wherein the Ziegler-Natta catalyst comprises i) an external donor of the formula (I): (R3)z(R2O)ySi(R1)x and ii) a solid Ziegler-Natta catalyst component being free of external carrier material.

公开(公告)号：US11299610B2

公开(公告)日：2022-04-12

申请号：US14904150

申请日：2014-07-10

Applicant: BOREALIS AG

Inventor： Luigi Resconi ,  Wilfried Toltsch ,  Jingbo Wang ,  Markus Gahleitner

IPC: C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08F4/659

Abstract: A heterophasic propylene ethylene copolymer having an MFR2 of 0.5 to 100 g/10 min and obtained using single site catalysis comprising: (i) at least 40 wt % of a propylene homopolymer or propylene ethylene copolymer matrix having up to 4 wt % comonomer; (ii) at least 10 wt % of an ethylene propylene rubber dispersed in the matrix, said heterophasic propylene ethylene copolymer having a xylene cold soluble content (XS) of 12 to 60%; wherein the ethylene content of the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer is between 18 and 70 wt. %; and wherein the intrinsic viscosity of the XS fraction of said heterophasic propylene ethylene copolymer is greater than the intrinsic viscosity of the matrix fraction of said copolymer.

公开(公告)号：US11078304B2

公开(公告)日：2021-08-03

申请号：US16624191

申请日：2018-06-14

Applicant: BOREALIS AG

Inventor： Luigi Maria Cristoforo Resconi ,  Wilfried Toltsch ,  Ville Virkkunen ,  Ismo Lehtiniemi ,  Noureddine Ajellal

IPC: C08F4/64 ,  C08F4/76 ,  C08L23/16 ,  C08F4/6592 ,  C08F2/01 ,  C08F2/34 ,  C08F4/659 ,  C08F210/06

Abstract: Process for producing a heterophasic propylene copolymer using a specific class of metallocene complexes in a multistage polymerization process including a gas phase polymerization step. The invention further relates to the use of catalysts which comprise a specific class of metallocene complexes to produce a heterophasic propylene copolymer in a multistep process including a gas phase polymerization step.

公开(公告)号：US10851191B2

公开(公告)日：2020-12-01

申请号：US15580260

申请日：2016-06-29

Applicant: BOREALIS AG

Inventor： Luigi Resconi ,  Pavel Shutov ,  Wilfried Toltsch

IPC: C08F210/06 ,  C08F210/16

Abstract: The present invention relates to an olefin polymerization process, wherein propylene and a C4 to C10 a-olefin, preferably 1-butene and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst so as to obtain a polypropylene, wherein the polypropylene comprises C4 to C10 a-olefin, preferably 1-butene-derived comonomer units in an amount of from 0.5 wt % to 15 wt % and ethylene-derived comonomer units in an amount of 0 wt % to 3 wt %, and wherein the Ziegler-Natta catalyst comprises i) an external donor of the formula (I): (R3)z(R2O)ySi(R1)x and ii) a solid Ziegler-Natta catalyst component being free of external carrier material.

公开(公告)号：US10696764B2

公开(公告)日：2020-06-30

申请号：US15538899

申请日：2015-12-28

Applicant: BOREALIS AG

Inventor： Wilfried Toltsch ,  Luigi Resconi

IPC: C08F210/06 ,  C08J5/18

Abstract: The present invention relates to an olefin polymerization process, wherein propylene and 1-butene and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst system so as to obtain a polypropylene, wherein the polypropylene comprises 1-butene-derived comonomer units in an amount of from 0.5 to 15 wt % and optionally ethylene-derived comonomer units in an amount of up to 3 wt %, and the Ziegler-Natta catalyst system comprises an external donor of the formula (I) (R3)z(R2O)YSi(R1)X  (I).

公开(公告)号：US09932469B2

公开(公告)日：2018-04-03

申请号：US15109855

申请日：2015-01-06

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Petar Doshev ,  Luigi Resconi ,  Wilfried Toltsch

IPC: C08L23/00 ,  C08L23/14 ,  C08F210/06 ,  C08J5/18

CPC classification number: C08L23/142 ,  C08F210/06 ,  C08J5/18 ,  C08J2323/16 ,  C08J2423/16 ,  C08F110/06 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/20 ,  C08F210/16 ,  C08F2/001

Abstract: A heterophasic propylene ethylene copolymer having an MFR2 of 0.5 to 100 g/10 m in and obtained using single site catalysis comprising: (i) a propylene homopolymer or propylene ethylene copolymer matrix having up to 4 wt % ethylene; and (ii) an ethylene propylene rubber (EPR) dispersed in the matrix; said heterophasic propylene ethylene copolymer having a xylene cold soluble content (XS) of 20 to 40%; wherein the ethylene content of the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer is between 70 and 90 wt. %; wherein the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer has an intrinsic viscosity (IV) of 3.0 dl/g or more; and wherein the melting enthalpy (ΔHM) of the heterophasic propylene ethylene copolymer is between 10 and 30 J/g at a temperature of 0 to 130° C.