Patent · US Active

Silica-coated alumina activator-supports for metallocene catalyst compositions

US7884163B2 · kind B2 · utility

286Cited by

65References

20Claims

0Family size

Assignee

Chevron Phillips Chemical Company LP · US

Inventors

Max P. McDaniel · Bartlesville, US
Qing Yang · Bartlesville, US
Randy S. Muninger · Canton, US
Elizabeth A. Benham · Bartlesville, US
Kathy S. Collins · Bartlesville, US

Key dates

Filing date	Sep 23, 2009
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Sep 23, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.

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