公开(公告)号：US11952440B2

公开(公告)日：2024-04-09

申请号：US17285958

申请日：2019-10-17

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lidong Li ,  Salah Al Hubish

IPC: C08F110/02 ,  C08K5/17 ,  C08K5/5445

CPC classification number: C08F110/02 ,  C08K5/17 ,  C08K5/5445 ,  C08F2410/02 ,  C08F2420/00

Abstract: The present invention relates to a process for the production of a polyethylene by polymerisation of a reaction mixture comprising ethylene in the presence a catalyst system and an antistatic agent according to formula I: (I) wherein R1, R2 and R3 stand for a moiety according to formula II or a hydrocarbon moiety having 1 to 20 carbon atoms (II) wherein each of R4, R5 and R6 may be the same or different, and wherein each of R4, R5 and R6 is a hydrocarbon moiety having 1 to 10 carbon atoms, and wherein at least one of R1, R2 and R3 is a moiety according to formula II. Such process allows for the reduction of sheeting in the polymerisation reactor without compromising the polymerisation reaction kinetics.

公开(公告)号：US10005858B2

公开(公告)日：2018-06-26

申请号：US15509309

申请日：2015-09-07

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Haif Al-Shammari ,  Yunshan Sun ,  Douglas Wade Stephan ,  Salah Al Hubish ,  Zhu Jiangtao

IPC: C07F17/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F110/02 ,  C07F5/02

CPC classification number: C08F110/02 ,  B01J31/00 ,  B01J31/2295 ,  C07F5/00 ,  C07F5/027 ,  C07F17/00 ,  C08F4/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/16 ,  C08F2500/07 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/04 ,  C08F2500/02

Abstract: A metallocene complex I, II, III and IV, wherein Y is a C1-C20 linear, branched or cyclic hydrocarbyl group, or a C6-C30 aryl or substituted aryl group; L is an electron-donating ligand; A is an element selected from Group 15 or 16; R is a C1-C30 alkyl, aryl, or substituted aryl group; n is an integer from 1 to 3; m is an integer from 1 to 4; B is a boron atom; M is selected from lanthanides or transition metals from group 3, 4, 5 or 6; X is an anionic ligand to M and z is the valence of M minus 2; and a catalyst comprising a 2-indenyl metallocene complex, a ligand precursor, a process for preparation of a ligand precursor, a process for preparation of olefin polymers in the presence of 2-indenyl metallocene complexes, articles comprising an olefin polymer, and methods of making the articles.