The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2023
Filed:
Jan. 05, 2021
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Catherine A. Faler, Houston, TX (US);
Margaret T. Whalley, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
The present disclosure describes highly soluble activators for use in olefin polymerization processes. These activators are ionic ammonium borates and have the general formula [Ar(ERRH)(R)][tetrakis(perfluoroaryl)borate] where Ar is an aromatic group; E is nitrogen or phosphorous; Ris independently selected from aliphatic hydrocarbyl groups containing 1 to 30 carbon atoms, preferentially methyl; Rand Rare independently selected from aliphatic hydrocarbyl groups containing 10 to 30 carbon atoms and at least one internal olefin. The inventive activators dissolve in isohexane or methylcyclohexane at 25° C. to form homogeneous solutions of at least 10 mM concentration. When combined with a group 4 metallocene to form an active olefin polymerization catalyst, the inventive activators are shown to have activity similar to controls.