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:
Feb. 07, 2017
Filed:
May. 25, 2010
Applicants:
Main Chang, Houston, TX (US);
Thomas Garoff, Helsinki, FI;
Inventors:
Main Chang, Houston, TX (US);
Thomas Garoff, Helsinki, FI;
Assignee:
W. R. Grace & Co.-Conn., Columbia, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 31/00 (2006.01); B01J 37/00 (2006.01); C08F 4/02 (2006.01); C08F 4/60 (2006.01); C08F 110/02 (2006.01); C08F 4/44 (2006.01); C08F 2/00 (2006.01);
U.S. Cl.
CPC ...
C08F 110/02 (2013.01);
Abstract
The present invention relates to solid catalyst components comprising a reaction product of a titanium compound, a magnesium compound, an alcohol, an aluminum alkoxide, a siloxane mixture, and a maleate derivative; and catalyst systems comprising the solid catalyst components and organoaluminum compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing ethylene using the catalyst systems.