-
公开(公告)号：US11292156B2
公开(公告)日：2022-04-05
申请号：US15534447
申请日：2015-12-07
Applicant: BOREALIS AG
Inventor： Martina Sandholzer , Klaus Bernreitner , Hermann Braun , Hermann Prokschi , Ulrich Schreider , Frank Schroder , Thomas Hager , Katja Klimke , Markus Gahleitner
Abstract: The present invention provides a process for extruding and pelletising a propylene copolymer. The copolymer has a content of comonomer from 5 to 40% by mole, a melt flow rate MFR2 measured at 230° C. under a load of 2.16 kg of from 0.5 to 15 g/10 min and a content of cold xylene soluble material of from 20 to 60% by weight. The process comprises extruding the propylene copolymer through a die plate into an underwater pelletiser and cutting strands of the propylene copolymer into pellets in the underwater pelletiser, wherein the ratio of the mass flow rate of the propylene copolymer to the mass flow rate of the cooling water is from 0.020 to 0.060; and the propylene copolymer comprises a polymeric nucleating agent.
-
公开(公告)号：US10316177B2
公开(公告)日：2019-06-11
申请号：US15522611
申请日：2015-11-04
Applicant: Borealis AG
Inventor： Hermann Braun , Jingbo Wang , Markus Gahleitner , Hermann Prokschi , Pauli Leskinen , Johanna Lilja
IPC: C08F210/06 , C08L23/14 , C08F255/04 , C08F4/02 , C08K5/092 , C08K5/12 , C08F10/06
Abstract: The invention relates to a propylene homopolymer or copolymer having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefin, said propylene homopolymer or copolymer being free of phthalic compound. It further relates to a long-chain branched propylene homopolymer or copolymer (b-PP) having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefins, said long-chain branched propylene homopolymer or copolymer (b-PP) being free of phthalic compound. As well as their production processes and uses.
-
公开(公告)号：US20170320986A1
公开(公告)日：2017-11-09
申请号：US15522622
申请日：2015-11-04
Applicant: Borealis AG
Inventor： Hermann Braun , Jingbo Wang , Markus Gahleitner , Hermann Prokschi , Johanna Lilja
IPC: C08F255/02 , C08K5/00 , C08K3/00
CPC classification number: C08F255/02 , C08F255/04 , C08K5/0008 , C08F10/06 , C08F4/651 , C08F4/6546 , C08F236/06 , C08F4/6492 , C08F110/06 , C08F2500/12 , C08F2500/24 , C08F2500/09 , C08F2500/26 , C08F210/06 , C08F210/16
Abstract: The invention relates to a propylene homopolymer or copolymer having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefin, said propylene homopolymer or copolymer being free of phthalic compound. It further relates to a long-chain branched propylene homopolymer or copolymer (b-PP) having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefins, said long-chain branched propylene homopolymer or copolymer (b-PP) being free of phthalic compound. As well as their production processes and uses.
-
公开(公告)号：US20170313797A1
公开(公告)日：2017-11-02
申请号：US15521574
申请日：2015-11-04
Applicant: BOREALIS AG
Inventor： Katja Klimke , Hermann Bruan , Jingbo Wang , Markus Gahleitner , Hermann Prokschi , Pauli Leskinen , Johanna Lilja
IPC: C08F210/06 , C08K5/14
CPC classification number: C08F210/06 , C08F8/50 , C08F255/04 , C08F2810/10 , C08K5/14 , C08L23/12 , C08L2023/42 , C08L2205/025 , C08F10/06 , C08F4/6465 , C08F4/651 , C08F236/06 , C08F210/16 , C08F2500/12 , C08F2500/15 , C08F2500/24 , C08F110/06 , C08F2500/11 , C08F2500/26 , C08F4/6492 , C08F4/6555 , C08F2/001
Abstract: The present invention relates to a polypropylene composition comprising a branched polypropylene (b-PP) having high melt strength (HMS). Furthermore, the present invention also relates to a method for providing the corresponding polypropylene having composition comprising the branched polypropylene (b-PP) and to a foam with the polypropylene composition comprising the branched polypropylene (b-PP). The branched polypropylene (b-PP) is based on a random copolymer with a small amount of ethylene.
-
-
-
Search Results
14
records
(took 0.016 seconds)
