公开(公告)号：WO2022018290A1

公开(公告)日：2022-01-27

申请号：PCT/EP2021/070757

申请日：2021-07-23

Applicant: BOREALIS AG

Inventor： KIPIANI, Georgy ,  KAUHANEN, Jyrki ,  DE SANTIS, Felice ,  MUSTONEN, Marja ,  HOFF, Matthias ,  SIMEONOV, Kalin ,  HAKALA, Kimmo ,  HASSINEN, Jarkko ,  RANIERI, Maria ,  SAIKKONEN, Esko ,  HÄMÄLÄINEN, Tiina ,  POLLHAMMER, Stefan ,  CASTRO, Pascal ,  SAEED, Irfan ,  KALLIO, Kalle

IPC: C08F210/16 ,  C08F4/659 ,  C08F2420/07 ,  C08F4/65912 ,  C08F4/65916

Abstract: The invention provides a process for the preparation of a multimodal ethylene polymer in a multistage process in the presence of a catalyst comprising a complex of formula (lx) wherein each X is a sigma donor ligand; each Het is independently a monocyclic or multicyclic heteroaromatic or heterocyclic group containing at least one heteroatom selected from O, N or S; L is a carbon, silicon or germanium based divalent bridge in which one or two backbone atoms link the ligands; M is Ti, Zr or Hf; each R1 is the same or different and is a linear CMO alkyl group, or linear CHO alkoxy, each n is 0 to 3; each R2 is the same or different and is a C1-10 alkyl group, C1-10 alkoxy group or -Si(R)3 group; each R is the same or different and is C1-10 alkyl or phenyl group optionally substituted by 1 to 3 C1-6 alkyl groups; and eachp is 0 to 3;

公开(公告)号：WO2022018239A1

公开(公告)日：2022-01-27

申请号：PCT/EP2021/070628

申请日：2021-07-23

Applicant: BOREALIS AG

Inventor： DE SANTIS, Felice ,  HOFF, Matthias ,  SIMEONOV, Kalin ,  TRANCHIDA, Davide ,  NEUHEIMER, Martin ,  POLLHAMMER, Stefan

IPC: C08F210/16 ,  C08J5/18 ,  C08L23/08 ,  C08F4/659

Abstract: The present invention relates to a new multimodal ethylene copolymer (P), to the use of the copolymer in film applications and to a film comprising the copolymer of the invention.