公开(公告)号：US11976183B1

公开(公告)日：2024-05-07

申请号：US18083686

申请日：2022-12-19

Applicant: Basell Polyolefine GmbH

Inventor： Timo Hees ,  Andreas Maus ,  Pascal Rebmann ,  Diana Doetsch ,  Katharina Elsas ,  Harilaos Mavridis ,  Gerhardus Meier

IPC: C08L23/06

CPC classification number: C08L23/06 ,  C08L2205/025 ,  C08L2207/04 ,  C08L2207/066 ,  C08L2207/20

Abstract: A process for producing a low density polyethylene with modified melt flow index, comprising subjecting to thermal visbreaking a precursor polyethylene (I) comprising 35% by weight or more of LDPE.

公开(公告)号：US20250011483A1

公开(公告)日：2025-01-09

申请号：US18702151

申请日：2022-10-10

Applicant: Basell Polyolefine GMBH ,  Albert-Ludwigs-Universität Freiburg

Inventor： Carl Gunther Schirmeister ,  Erik Hans Licht ,  Timo Hees ,  Jürgen Rohrmann ,  Rainer Köhler ,  Shahram Mihan ,  Yannic Kessler ,  Rolf Muelhaupt

IPC: C08F210/16 ,  B33Y80/00 ,  C08J5/04

Abstract: A polyolefin composition (I) made from or containing: (A) 15-80% by weight of a heterophasic polymer composition made from or containing: (a) 50-80% by weight of a propylene polymer, and (b) 20-50% by weight of a copolymer of ethylene and an alpha-olefin; and (B) 20-85% by weight of a polyethylene composition made from or containing: (i) 25-85% by weight of a polyethylene component, having a weight average molecular weight Mw(i), equal to or higher than 1,000,000 g/mol; and (ii) 10-65% by weight of a polyethylene component, having an Mw(ii) equal to or lower than 5,000 g/mol, wherein the polyethylene composition (B) is made from or containing at least 70% by weight of (i)+(ii).

公开(公告)号：US12187877B2

公开(公告)日：2025-01-07

申请号：US17432392

申请日：2020-02-12

Applicant: Basell Polyolefine GmbH ,  Albert-Ludwigs-Universität Freiburg

Inventor： Shahram Mihan ,  Erik Hans Licht ,  Rolf Mülhaupt ,  Carl Gunther Schirmeister ,  Timo Hees

IPC: C08L23/06 ,  B29C64/118 ,  B33Y10/00 ,  B33Y70/00 ,  B29K23/00

Abstract: An extrusion additive manufacturing process including the step of extruding a polyethylene composition having a melt flow index MIE of at least 0.1 g/10 min., the composition made from or containing: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass Mw, as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95% by weight of a polyethylene component having a Mw value from 50,000 to 500,000 g/mol; and C) from 1% to 59% by weight of a polyethylene component having a Mw value equal to or lower than 5,000 g/mol.

公开(公告)号：US11976184B1

公开(公告)日：2024-05-07

申请号：US18083690

申请日：2022-12-19

Applicant: Basell Polyolefine GmbH

Inventor： Andreas Maus ,  Timo Hees ,  Pascal Rebmann ,  Diana Doetsch ,  Katharina Elsas ,  Harilaos Mavridis ,  Gerhardus Meier

IPC: C08L23/06

CPC classification number: C08L23/06 ,  C08L2203/14 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/066

Abstract: A process for producing a low density polyethylene with modified melt flow index, comprising subjecting to thermal visbreaking a precursor polyethylene (I) comprising 35% by weight or more of LDPE and blending the so obtained intermediate polyethylene product (II) with an additional polyethylene (III).

公开(公告)号：US20240051221A1

公开(公告)日：2024-02-15

申请号：US17766442

申请日：2020-09-28

Applicant: Basell Polyolefine GmbH ,  Albert-Ludwigs-Universität Freiburg

Inventor： Carl Schirmeister ,  Karsten Schmitz ,  Yannic Kessler ,  Rainer Köhler ,  Erik Licht ,  Shahram Mihan ,  Jürgen Rohrmann ,  Dieter Langenfelder ,  Rolf Muelhaupt ,  Timo Hees

IPC: B29C64/118 ,  C08L23/12 ,  C08L23/16 ,  C08L23/08 ,  C08K7/14 ,  C08L53/00 ,  C08L25/08 ,  C08L51/06

CPC classification number: B29C64/118 ,  C08L23/12 ,  C08L23/16 ,  C08L23/0815 ,  C08K7/14 ,  C08L53/00 ,  C08L25/08 ,  C08L51/06 ,  B29K2023/08

Abstract: A process for producing articles with an extrusion-based additive manufacturing system using a consumable filament made from or containing a propylene polymer composition made from or containing:



A) from 20% to 60% by weight of a heterophasic propylene copolymer;
B) from 5% to 33% by weight of a propylene homopolymer or copolymer, wherein the copolymer contains up to 5% by weight of an alpha olefin;
C) from 2% to 15% by weight of an elastomeric block copolymer made from or containing styrene;
D) from 4% to 32% by weight of an elastomeric ethylene copolymer;
E) from 5% to 50% by weight of a glass material as filler; and
F) from 0.1% to 5% by weight of compatibilizer.

公开(公告)号：US20220259416A1

公开(公告)日：2022-08-18

申请号：US17432392

申请日：2020-02-12

Applicant: Basell Polyolefine GmbH ,  Albert-Ludwigs-Universität Freiburg

Inventor： Shahram Mihan ,  Erik Hans Licht ,  Rolf Mülhaupt ,  Carl Gunther Schirmeister ,  Timo Hees

IPC: C08L23/06 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/118

Abstract: An extrusion additive manufacturing process including the step of extruding a polyethylene composition having a melt flow index MIE of at least 0.1 g/10 min., the composition made from or containing: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass Mw, as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95% by weight of a polyethylene component having a Mw value from 50,000 to 500,000 g/mol; and C) from 1% to 59% by weight of a polyethylene component having a Mw value equal to or lower than 5,000 g/mol.