公开(公告)号：US20230257489A1

公开(公告)日：2023-08-17

申请号：US18014219

申请日：2021-07-07

Applicant: Borealis AG

Inventor： Andrey Buryak ,  Victor Sumerin ,  Franz Ruemer ,  Jari Aarila ,  Joy Jie Cheng

IPC: C08F10/02 ,  C08F210/14 ,  C08L23/08 ,  C08F2/00 ,  C08K3/04

CPC classification number: C08F10/02 ,  C08F210/14 ,  C08L23/0815 ,  C08F2/001 ,  C08K3/04 ,  C08L2203/18 ,  C08L2314/02 ,  C08K2201/019

Abstract: The present invention relates to a polyethylene composition comprising a base resin which comprises (A) a first ethylene homo- or copolymer fraction, and (B) a second ethylene-hexene-1 copolymer fraction, wherein fraction (A) has a lower molecular weight than fraction (B) and wherein fraction (B) is present in an amount of from 51.0 to 58.5 wt. %, preferably 52.0 to 57.5 wt. %, more preferably 53.0 to 57.0 wt. % based on the total weight of the base resin, wherein fraction (B) of the base resin has a content of units derived from hexene-1 from 0.80 to 1.45 mol %, preferably of from 0.82 to 1.35 mol % and more preferably of from 0.85 to 1.30 mol %, wherein the base resin has a number average molecular weight Mn of 8,500 g/mol or higher, and wherein the polyethylene composition has a melt flow rate MFRs from 0.10 to 0.30 g/10 min, preferably from 0.15 to 0.28, and still more preferably from 0.16 to 0.25 g/10 min, to a process for producing the polyethylene composition, to an article, especially a pipe comprising the polyethylene composition and to the use of the polyethylene composition for the production of an article, especially a pipe.

公开(公告)号：US20220162430A1

公开(公告)日：2022-05-26

申请号：US17593630

申请日：2020-03-16

Applicant: Borealis AG

Inventor： Franz Ruemer ,  Luca Boragno ,  Stefan Schiesser ,  Guenter Dreiling ,  Christian Hollsten ,  Siegfried Liedauer ,  Andrei Ollikainen ,  Thierry Pezard

IPC: C08L23/12

Abstract: Composition comprising a heterophasic propylene copolymer with low melt flow rate and rather low amount of xylene cold solubles and a recycled polymer composition being rich in polypropylene.

公开(公告)号：US10889666B2

公开(公告)日：2021-01-12

申请号：US16301610

申请日：2017-05-23

Applicant: BOREALIS AG

Inventor： Franz Ruemer ,  Carl-Gustav Ek ,  Mattias Bergqvist

IPC: C08F10/02 ,  C08K5/14 ,  C08F8/50 ,  C08L23/26 ,  C08J11/22 ,  C08F8/00 ,  C08L23/04 ,  C08J3/12 ,  C08J3/22

Abstract: The invention is related to a process for producing modified polyethylene having decreased melt flow rate (5 kg, 190° C.) (MFR). In particular, the present invention is directed to a process in a controlled manner for producing modified polyethylene recyclates having low MFR and low gel content directly by reactive extrusion processing.

公开(公告)号：US12084565B2

公开(公告)日：2024-09-10

申请号：US17593630

申请日：2020-03-16

Applicant: Borealis AG

Inventor： Franz Ruemer ,  Luca Boragno ,  Stefan Schiesser ,  Guenter Dreiling ,  Christian Hollsten ,  Siegfried Liedauer ,  Andrei Ollikainen ,  Thierry Pezard

IPC: C08L23/12

CPC classification number: C08L23/12 ,  C08L2203/18 ,  C08L2205/03 ,  C08L2207/02 ,  C08L2207/10 ,  C08L2207/20

Abstract: Composition comprising a heterophasic propylene copolymer with low melt flow rate and rather low amount of xylene cold solubles and a recycled polymer composition being rich in polypropylene.

公开(公告)号：US10308798B2

公开(公告)日：2019-06-04

申请号：US15536616

申请日：2015-12-18

Applicant: BOREALIS AG

Inventor： Carl-Gustaf Ek ,  Asa Wannerskog ,  Stefan Rieder ,  Franz Ruemer

IPC: C08L23/06 ,  C08L23/26 ,  B29C43/00 ,  B29C43/02 ,  C08J3/20 ,  B29K23/00 ,  B29K509/06

Abstract: The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt % in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE) selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.

公开(公告)号：US20190233626A1

公开(公告)日：2019-08-01

申请号：US16311253

申请日：2017-06-21

Applicant: BOREALIS AG

Inventor： Franz Ruemer ,  Carl-Gustav Ek

IPC: C08L23/04

CPC classification number: C08L23/04 ,  C08L2023/44 ,  C08L2203/18 ,  C08L2207/20 ,  C08L23/30

Abstract: The invention is related to a pipe produced by a reactive modification of a recycled polyethylene in the presence of a free radical generator. Further, the present invention is also directed to a process in a controlled manner for producing pipes from modified polyethylene recyclates having broader MFR range.

公开(公告)号：US20190177448A1

公开(公告)日：2019-06-13

申请号：US16301610

申请日：2017-05-23

Applicant: BOREALIS AG

Inventor： Franz Ruemer ,  Carl-Gustav Ek ,  Mattias Bergqvist

IPC: C08F10/02 ,  C08J3/12 ,  C08J3/22

Abstract: The invention is related to a process for producing modified polyethylene having decreased melt flow rate (5 kg, 190° C.) (MFR). In particular, the present invention is directed to a process in a controlled manner for producing modified polyethylene recyclates having low MFR and low gel content directly by reactive extrusion processing.

公开(公告)号：US20220411547A1

公开(公告)日：2022-12-29

申请号：US17778087

申请日：2020-11-26

Applicant: Borealis AG

Inventor： Carl-Gustaf Ek ,  Denis Yalalov ,  Franz Ruemer ,  Mattias Bergqvist

IPC: C08F210/02 ,  C08F220/14 ,  C08F230/08 ,  C08K5/14 ,  B29C48/00 ,  B29C48/40

Abstract: The present invention provides a process for producing a polyethylene composition by treating a cross-linkable ethylene copolymer containing monomer units with hydrolysable silane-groups and polar monomer units. The invention further provides a treated cross-linkable polyethylene composition 5 obtained by the process and a silane-crosslinked polyethylene composition obtained by the process. The invention further provides articles comprising the treated cross-linkable polyethylene composition or comprising the silane-crosslinked polyethylene composition.

公开(公告)号：US20180327583A1

公开(公告)日：2018-11-15

申请号：US15536616

申请日：2015-12-18

Applicant: BOREALIS AG

Inventor： Carl-Gustaf Ek ,  Asa Wannerskog ,  Stefan Rieder ,  Franz Ruemer

IPC: C08L23/26 ,  C08L23/06 ,  C08J3/20 ,  B29C43/00 ,  B29C43/02

CPC classification number: C08L23/26 ,  B29C43/003 ,  B29C43/02 ,  B29K2023/0691 ,  B29K2509/06 ,  C08J3/201 ,  C08J2323/06 ,  C08J2323/26 ,  C08J2423/06 ,  C08J2423/26 ,  C08L23/06

Abstract: The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt % in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE) selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.