Methods for producing fluorided-chlorided silica-coated alumina activator-supports and catalyst systems containing the same

Patent metadata

Field	Value
Publication number	US-9023959-B2
Application number	US-201313941573-A
Country	US
Kind code	B2
Filing date	Jul 15, 2013
Priority date	Jul 15, 2013
Publication date	May 5, 2015
Grant date	May 5, 2015

Abstract

Methods for the preparation of fluorided-chlorided silica-coated alumina activator-supports are disclosed. These activator-supports can be used in catalyst systems for the production of olefin-based polymers, such as polyethylene and polypropylene.

First claim

We claim:

1. A catalyst composition comprising:
an activator-support comprising a fluorided-chlorided silica-coated alumina;
a metallocene compound; and
optionally, a co-catalyst; wherein:
a catalyst activity of the catalyst composition is greater than that of a catalyst system containing a fluorided silica-coated alumina, under the same polymerization conditions.

2. The composition of claim 1 , wherein:
the fluorided-chlorided silica-coated alumina c…

Assignees

• Chevron Phillips Chemical Co

Inventors

• Mcdaniel Max P
• Kilgore Uriah
• Yang Qing
• Collins Kathy S

Classifications

• B01J2531/49

  Operations & Transport · mapped topic

• C08F210/16 Primary

  Chemistry & Metallurgy · mapped topic

• C08F4/65912

  Chemistry & Metallurgy · mapped topic

• C08F10/00

  Chemistry & Metallurgy · mapped topic

• B01J31/1608

  Operations & Transport · mapped topic