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：US11053371B2

公开(公告)日：2021-07-06

申请号：US15753654

申请日：2016-09-23

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Joachim Fiebig ,  Henk Van Paridon ,  Markus Gahleitner ,  Georg Grestenberger ,  Jeroen Vanhoutte

IPC: C08K5/01 ,  C08L23/26 ,  D04H1/4291 ,  D04H1/56 ,  D04H1/544 ,  D04H3/007 ,  D04H3/16

Abstract: Melt-blown webs having a widened process window and better barrier properties (3rd drop, cm H2O resp. mbar). The melt-blown webs are made from so-called “controlled rheology” propylene (CR-PP), which has been visbroken without the use of peroxide but with a specific type of visbreaking additive.

公开(公告)号：US20190301065A1

公开(公告)日：2019-10-03

申请号：US16063789

申请日：2017-01-02

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Katja Klimke ,  Joachim Fiebig ,  Henk Van Paridon ,  Markus Gahleitner

IPC: D04H3/14 ,  C08F4/651 ,  C08F4/654 ,  C08F110/06 ,  D04H3/007

Abstract: Spunbonded nonwoven fabrics being composed of phthalate-free PP homopolymers and articles comprising said spunbonded fabrics.

公开(公告)号：US20190301055A1

公开(公告)日：2019-10-03

申请号：US16303845

申请日：2017-06-02

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Joachim Fiebig ,  Henk Van Paridon ,  Markus Gahleitner ,  Petar Doshev ,  Georg Grestenberger ,  Antti Tynys

IPC: D01F6/46 ,  C08L23/12 ,  D04H1/544 ,  D01D5/098 ,  D01F6/06 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/007 ,  D04H3/16

Abstract: Melt-blown fiber comprising two polypropylenes which differ in their molecular weight.

公开(公告)号：US20190284739A1

公开(公告)日：2019-09-19

申请号：US16463768

申请日：2017-12-06

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Wilhelmus Henricus Adolf Sars ,  Joachim Fiebig ,  Henk Van Paridon ,  Gustaf Tobeison ,  Georg Grestenberger

IPC: D04H1/559 ,  D01D5/098 ,  D01F6/06 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/007

Abstract: The present invention is directed to a nonwoven fabric (NF) comprising at least one inner layer (M) surrounded by at least one outer layer (S), said inner layer (M) comprising melt blown fibers and said outer layer (S) comprising spunbonded fibers, wherein said melt blown fibers and said spunbonded fibers comprise propylene polymers. The present invention is further directed to an article comprising said nonwoven fabric (NF).