公开(公告)号：US20240343842A1

公开(公告)日：2024-10-17

申请号：US18682030

申请日：2022-07-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Yahya Banat ,  Lidong Li ,  Nasser Abdullah AlSaif ,  Mohammad Al-Shibel

IPC: C08F4/6592 ,  C08F4/02 ,  C08F4/642

CPC classification number: C08F4/65925 ,  C08F4/025 ,  C08F4/6428

Abstract: Process for producing a supported metallocene catalyst system includes: (i) preparing mixture (a) by mixing a metallocene with a cocatalyst; (ii) preparing mixture (b) by reacting an aluminium (II) with an amine (III)t;




wherein each R6 and R10 is hydrogen or a C1-30 hydrocarbon; R7, R8, and R11 are C1-30 hydrocarbon; R9 is hydrogen or a functional moiety comprising at least one active hydrogen; (iii) providing a support material, into a reaction vessel; (iv) providing a solvent into the reaction vessel; (v) supplying mixture (a) and mixture (b) to the reaction vessel; (vi) subjecting the contents of the reaction vessel to a temperature of >60° C. for a period of >3 hrs to obtain a supported catalyst system; and (vii) removing the solvent from the supported catalyst system. Such process allows for the production of a supported metallocene catalyst system having reduced fouling in olefin polymerisation.

公开(公告)号：US20240262946A1

公开(公告)日：2024-08-08

申请号：US18565730

申请日：2022-05-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lidong Li ,  Nasser Abdullah AlSaif ,  Yahya Banat ,  Mohammad Al-Shibel

IPC: C08F210/16

CPC classification number: C08F210/16

Abstract: An ethylene-α-olefin copolymer includes moieties derived from ethylene and moieties derived from an α-olefin comprising 3 to 10 carbon atoms, wherein the copolymer has: a short chain branching ratio (SCBR) of >1.40;



a short chain branching content of ≥15.0/1000 C; a molecular weight distribution Mw/Mn of ≥10.0; and a quantity of polymer moieties derived from an α-olefin comprising 3 to 10 carbon atoms of ≥1.0 and ≤20.0 wt %, with regard to the total weight of the copolymer. Such copolymer demonstrates improved melt processability, as well as allows for manufacturing of films having desirable mechanical properties, in particular in production of films such as by blown film production or by cast film production.