Patent number: 11472895
Abstract: The present invention provides a compound according to formula (I): (I) wherein: •R2 is abridging moiety containing at least one sp2 hybridised carbon atom; •each R4, R4?, R7 and R7? are hydrogen or moieties comprising 1-10 carbon atoms, wherein each R4, R4?, R7 and R7? are the same; •each R5, R5?, R6 and R6? are moieties comprising 1-10 carbon atoms, wherein each R5, R5?, R6 and R6? are the same; and •Z is a moiety selected from ZrX2, HfX2, or TiX2, wherein X is selected from the group of halogens, alkyls, aryls and aralkyls. Such compound allows for the preparation of catalyst systems that provide improved olefin reactivity, such as ethylene reactivity, increased molecular weight in olefin polymerisation, such as increased Mw in ethylene polymerisation, and increased comonomer incorporation in copolymerisation reactions of olefins, such as in copolymerisation reactions of ethylene with 1-hexene.
Type:
Grant
Filed:
August 29, 2019
Date of Patent:
October 18, 2022
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V.
Inventors:
Coen Hendriksen, Nicolaas Hendrika Friederichs, Jaiprakash Brijlal Sainani, Anamitra Chatterjee, Vyatcheslav Izmer, Dmitry Kononovich, Alexander Voskoboynikov, Vincenzo Busico, Roberta Cipullo, Antonio Vittoria, Oleg V. Samsonov
Patent number: 11414436
Abstract: The present disclosure provides borate or aluminate activators comprising cations having linear alkyl groups, catalyst systems comprising, and methods for polymerizing olefins using such activators. Specifically, the present disclosure provides activator compounds represented by Formula: [R1R2R3EH]d+[Mk+Qn]d?, wherein: E is nitrogen or phosphorous; d is 1, 2 or 3; k is 1, 2, or 3; n is 1, 2, 3, 4, 5, or 6; n?k=d; R1 is C1-C20 linear alkyl group; each of R2 and R3 is a C1-C40 linear alkyl group, a meta- and/or para-substituted phenyl group, an alkoxy group, a silyl group, a halogen, or a halogen containing group, wherein R1+R2+R3?15 carbon atoms; M is an element selected from group 13, typically B or Al; and each Q is independently a hydride, bridged or unbridged dialkylamido, halide, alkoxide, aryloxide, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, or halosubstituted-hydrocarbyl radical, provided that when Q is a fluorophenyl group, then R2 is not a C1-C40 linear alkyl group.
Type:
Grant
Filed:
April 25, 2019
Date of Patent:
August 16, 2022
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Catherine A. Faler, Margaret T. Whalley, Peijun Jiang, John R. Hagadorn, Crisita Carmen H. Atienza, Alex E. Carpenter, George Rodriguez