Catalyst composition and method for preparing polyethylene
申请人:Chevron Phillips Chemical Company LP
公开号:US11186665B2
公开(公告)日:2021-11-30
Disclosed are metallocene compounds, catalyst compositions comprising at least one metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers. In an aspect, a metallocene compound and catalyst composition are disclosed in which the metallocene contains at least one indenyl ligand, the indenyl ligand containing at least one halogenated substituent, such as a fluorinated substituent. These metallocene compounds and catalyst compositions can produce polyethylene having unexpectedly low levels of short chain branching.
[EN] CATALYST COMPOSITION AND METHOD FOR PREPARING POLYETHYLENE<br/>[FR] COMPOSITION DE CATALYSEUR ET PROCÉDÉ DE PRÉPARATION DE POLYÉTHYLÈNE
申请人:CHEVRON PHILLIPS CHEMICAL CO LP
公开号:WO2021067148A1
公开(公告)日:2021-04-08
Disclosed are metallocene compounds, catalyst compositions comprising at least one metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers. In an aspect, a metallocene compound and catalyst composition are disclosed in which the metallocene contains at least one indenyl ligand, the indenyl ligand containing at least one halogenated substituent, such as a fluorinated substituent. These metallocene compounds and catalyst compositions can produce polyethylene having unexpectedly low levels of short chain branching.