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. 01, 2022
Filed:
Aug. 23, 2018
Applicant:
W.r. Grace & Co.-conn., Columbia, MD (US);
Inventors:
Vladimir P. Marin, Houston, TX (US);
Ahmed Hintolay, Houston, TX (US);
Neil J. O'Reilly, Seabrook, TX (US);
Assignee:
W.R. Grace & Co.-CONN., Columbia, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 10/02 (2006.01); C08F 2/06 (2006.01); C08F 4/656 (2006.01); C08F 110/02 (2006.01); C08F 4/651 (2006.01);
U.S. Cl.
CPC ...
C08F 10/02 (2013.01); C08F 2/06 (2013.01); C08F 4/651 (2013.01); C08F 4/6565 (2013.01); C08F 4/6567 (2013.01); C08F 110/02 (2013.01); C08F 2500/12 (2013.01); C08F 2500/18 (2013.01); C08F 2500/24 (2013.01);
Abstract
A process for preparing a solid pre-catalyst component for use in olefinic polymerization includes dissolving a magnesium chloride in an alcohol and optionally adding water to form a first solution having a water content of about 0.5 mmol water per mol MgClto about 100 mmol water per mol MgCl; contacting the first solution with a first titanium compound to form the solid pre-catalyst component; and treating the solid pre-catalyst component with a hydrocarbon or halogenated hydrocarbon solvent, optionally containing a second titanium compound.