公开(公告)号：US11236214B2

公开(公告)日：2022-02-01

申请号：US16753218

申请日：2018-12-18

Applicant: Borealis AG

Inventor： Jingbo Wang ,  Wilfried Peter Töltsch ,  Luigi Maria Resconi ,  Friedrich Berger

IPC: C08K5/1575 ,  A61L31/04

Abstract: A propylene copolymer composition comprising A) a propylene butylene copolymer which is—free of phthalicacid esters as well as decomposition products thereof; —obtained by a Ziegler-Natta catalyst and B) at least one α-nucleating agent, the propylene copolymer composition having—a MFR (2.16 kg/210° C.) in the range of 2 to 100 g/10 min—a melting point Tm(1) of less than 140° C.—a melting point Tm(2) of at least 150° C., said Tm(2) being associated with more than 75% of the total melting enthalpy and whereby the propylene copolymer—has monomer units derived from a) propylene in an amount of 90.0-98.0 mol.-% b) butylene in an amount of 2.0-10.0 mol.-% with respect to the total weight of the propylene butylene copolymer—an isotacticity mm % as determined by 13C NMR spectroscopy of below 99.0%; and—a Koenig-B parameter with respect to butylene as determined by 13C NMR spectroscopy of more than 0.98.

公开(公告)号：US10759931B2

公开(公告)日：2020-09-01

申请号：US16079504

申请日：2017-03-01

Applicant: BOREALIS AG

Inventor： Claudia Kniesel ,  Minna Aarnio-Winterhof ,  Karlheinz Friedrich ,  Markus Gahleitner ,  Friedrich Berger

IPC: C08L23/12 ,  C08J3/22 ,  C08K5/00 ,  C08K5/098 ,  C08K5/134 ,  C08K5/521 ,  C08L23/08 ,  C08L23/16 ,  C08L23/20

Abstract: High flow nucleated heterophasic polyolefin compositions comprising a matrix comprising a propylene homo- and/or copolymer and an elastomeric alpha-olefin copolymer phase dispersed in the matrix, which have rather high melt flow rate, improved impact strength but also an excellent impact/stiffness balance and a process for the preparation of such a heterophasic polyolefin composition, articles made therefrom and uses of the heterophasic polyolefin composition.

公开(公告)号：US10752763B2

公开(公告)日：2020-08-25

申请号：US16477571

申请日：2018-01-26

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Markus Gahleitner ,  Friedrich Berger ,  Markku Vahteri ,  Joachim Fiebig

IPC: C08L23/16 ,  C08L23/12 ,  C08L23/14

Abstract: Heterophasic polyolefin composition with improved optical properties, its preparation, articles made therefrom, particularly films, and use of the heterophasic polyolefin composition.

公开(公告)号：US20200048443A1

公开(公告)日：2020-02-13

申请号：US16340646

申请日：2017-10-17

Applicant: BOREALIS AG

Inventor： Markus Gahleitner ,  Jingbo Wang ,  Friedrich Berger ,  Johanna Lilja

IPC: C08L23/12 ,  C08L23/16 ,  C08K5/098 ,  C08K5/01

Abstract: The present invention relates to a nucleated heterophasic polypropylene composition, which shows improved properties in view of mechanical and optical behaviour as well as low amounts of extractable. The present invention also relates to films and final articles made out of the heterophasic polypropylene composition, as well as their use in packaging, especially food packaging applications.