公开(公告)号：US20250083409A1

公开(公告)日：2025-03-13

申请号：US18292572

申请日：2022-08-02

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Henk Van Paridon ,  Gustaf Tobieson ,  Wilhelmus Henricus Adolf Sars ,  Anita Luyten ,  Pascal Wust ,  Onur Uzun

IPC: B32B5/26 ,  B01D39/16 ,  B32B5/02 ,  B32B7/027 ,  C08F10/06 ,  D04H1/4291 ,  D04H1/4374 ,  D04H1/56 ,  D04H3/16

Abstract: A nonwoven fabric (NF) comprising a multilayer structure that comprises: i) at least one meltblown layer (M) comprising melt blown fibers (MBF) comprising a first propylene polymer (PP1) having: a) an amount of 2,1-regiodefects in the range from 0.0 to 0.1 mol-%; and b) a melting temperature Tm in the range from 155 to 170° C., ii) at least one spunbonded layer (S) comprising spunbonded fibers (SBF) comprising a second propylene polymer (PP2) having: a) an amount of 2,1-regiodefects in the range from 0.4 to 1.5 mol-%; and b) a melting temperature Tm in the range from 145 to 160° C. wherein the melting temperature of the first polypropylene polymer Tm (PP1) is at least 5.0° C. higher than that of the second first polypropylene polymer Tm (PP2).

公开(公告)号：US20250059683A1

公开(公告)日：2025-02-20

申请号：US18725853

申请日：2022-12-21

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Joachim Fiebig ,  Henk Van Paridon ,  Gustaf Tobieson ,  Sebastian Sommer ,  Patrick Bohl ,  Hans-Georg Geus ,  Morten Rise Hansen ,  Mathias Agersnap Scherer ,  Thomas Broch

IPC: D01F8/06 ,  D01D5/22 ,  D01D5/32 ,  D04H1/4291 ,  D04H1/4382 ,  D04H1/4391 ,  D04H1/558 ,  D04H1/56 ,  D04H3/16

Abstract: Use of polymer composition comprising a first propylene polymer A and a second propylene polymer B for producing crimped multicomponent fiber having a side by side cross-sectional configuration.

公开(公告)号：US20230257934A1

公开(公告)日：2023-08-17

申请号：US18011551

申请日：2021-06-23

Applicant: Borealis AG

Inventor： Willem De Wever ,  Henk Van Paridon ,  Gustaf Tobieson ,  Auli Nummila-Pakarinen ,  Jingbo Wang

IPC: D06N3/04 ,  D06N3/00 ,  D01D5/08

CPC classification number: D06N3/045 ,  D06N3/0011 ,  D06N3/0038 ,  D01D5/08 ,  D06N3/0088 ,  D06N2211/18 ,  D06N2211/06 ,  D06N2211/24 ,  D06N2201/0254 ,  D06N2203/042

Abstract: The present invention relates to a composite comprising a nonwoven fabric being the substrate of the composite, wherein the nonwoven fabric comprises a polymer (A) selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate and polyamide; and a coating layer, wherein the coating layer comprises a polymer (B), wherein said polymer is an ethylene copolymer, preferably a polar ethylene copolymer; whereby the coating layer overlays at least one surface of the nonwoven fabric; and whereby the composite has a water vapor transmission rate (WTVR) according to ASTM E-96 ((water cup method) at 38° C. at 50% RH at the outside of the sample and 100% RH at the inside of the samples) of more than 50 g/[m2/24 h], preferably of more than 100 g/[m2/24 h].

公开(公告)号：US20230025875A1

公开(公告)日：2023-01-26

申请号：US17780545

申请日：2020-12-03

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Joachim Fiebig ,  Henk Van Paridon ,  Wilhelmus Sars ,  Gustaf Tobieson

IPC: D04H3/16 ,  D04H3/007 ,  C08F110/06

Abstract: The present invention relates to melt-blown webs having no shots and improved barrier properties, whereby the melt-blown webs are made of a visbroken metallocene-catalyzed propylene homopolymer composition with specified melting temperature Tm, content of 2,1 erythro regiodefects and molecular weight distribution (MWD).

公开(公告)号：US20240301602A1

公开(公告)日：2024-09-12

申请号：US18260506

申请日：2022-01-21

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Joachim Fiebig ,  Henk Van Paridon ,  Wilhelmus Sars ,  Gustaf Tobieson ,  Pauli Leskinen

IPC: D04H3/16 ,  B01D39/16 ,  C08F110/06 ,  C08K5/098 ,  C08K5/20 ,  D01F1/10 ,  D01F6/06 ,  D04H1/4291 ,  D06M10/00 ,  D06M101/20

CPC classification number: D04H3/16 ,  B01D39/1623 ,  C08F110/06 ,  C08K5/098 ,  C08K5/20 ,  D01F1/10 ,  D01F6/06 ,  D04H1/4291 ,  D06M10/00 ,  B01D2239/0435 ,  B01D2239/0622 ,  B01D2239/10 ,  C08F2420/10 ,  C08F2810/10 ,  C08K2201/014 ,  D06M2101/20 ,  D06M2200/00 ,  D10B2321/022 ,  D10B2401/04 ,  D10B2505/04

Abstract: Electret melt-blown webs made from a polypropylene composition (PC) comprising a propylene homopolymer (HPP) having: a. a melt flow rate MFR2 in the range from 400 to 5000 g/10 min, b. a melting temperature Tm, in the range from 140 to 160° C., and c. a content of 2, 1 erythro regiodefects in the range from 0.01 to 1.5 mol %.

公开(公告)号：US20240084103A1

公开(公告)日：2024-03-14

申请号：US18260504

申请日：2022-01-21

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Joachim Fiebig ,  Henk Van Paridon ,  Wilhelmus Sars ,  Gustaf Tobieson ,  Pauli Leskinen

IPC: C08K5/3435 ,  B01D39/16 ,  D01F1/10 ,  D01F6/06 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/16 ,  D06M10/00

CPC classification number: C08K5/3435 ,  B01D39/1623 ,  D01F1/10 ,  D01F6/06 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/16 ,  D06M10/00 ,  D06M2101/20 ,  D10B2321/022 ,  D10B2401/00

Abstract: A polypropylene composition (PC) comprising: a. from 95.0 to 99.99 wt.-%, of a polypropylene (PP), preferably a propylene homopolymer (HPP); and b. from 0.01 to 5.0 wt.-%, of a compound according to Formula (I), wherein each R is independently selected from C1 to C6 alkylene, C2 to C6 alkenylene and a single bond, each R′ is independently selected from H and C1 to C6 alkyl, each R″ is independently selected from H and C1 to C22 alkyl, wherein each alkylene, alkenylene and alkyl group may optionally be substituted by deuterium or fluorine, and the two substituents on the central benzene ring may be either positioned in an ortho, meta or para relationship; wherein the polypropylene composition (PC) has an MFR2 of from 400 to 5000 g/10 min and a melting temperature Tm of from 140 to 170° C.

公开(公告)号：US20230001340A1

公开(公告)日：2023-01-05

申请号：US17779240

申请日：2020-12-03

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Joachim Fiebig ,  Henk Van Paridon ,  Wilhelmus Sars ,  Gustaf Tobieson

IPC: B01D39/16 ,  D01F6/06 ,  D04H1/56 ,  C08F4/6592 ,  C08F10/06

Abstract: The present invention relates to filtration media made from melt-blown fibers having improved barrier properties. The melt-blown fibers in the filtration media of the invention are made of a visbroken metallocene-catalyzed propylene homopolymer composition with specified melting temperature Tm and molecular weight distribution (MWD).