Patent · US Active

Chromium oxide catalyst for ethylene polymerization

US12091472B2 · kind B2 · utility

0Cited by

20References

13Claims

0Family size

Assignee

SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

Xiaoyu Tan · Hengyang, CN
Vugar O. Aliyev · Riyadh, SA
Orass Hamed · Riyadh, SA

Key dates

Filing date	Jan 23, 2020
Grant date	Sep 17, 2024
Priority date	—
Expiry date	Aug 19, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2410/01
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a solid catalyst system comprising a chromium compound, an aluminium alkoxide compound, a nitrogen containing compound and a silicon oxide support, wherein the aluminium alkoxidc compound has the formula (R1)2—Al—OR2 wherein R1 is selected from C1-C8 alkyl groups and OR2 is selected from C1-C8 alkoxyl groups and wherein the nitrogen containing compound is a cycloalkylamine compound having the general formula: R3—NH2, wherein R3 is selected from C3-C8 cycloalkyl groups.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.