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:
Jun. 03, 2014
Filed:
Jul. 29, 2011
Applicants:
Daan Dewachter, Mechelen, BE;
Daniel Bekaert, Ronquiéres, BE;
Inventors:
Daan Dewachter, Mechelen, BE;
Daniel Bekaert, Ronquiéres, BE;
Assignee:
Total Research & Technology Feluy, Seneffe (Feluy), BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01); C08F 4/00 (2006.01); C08F 4/24 (2006.01); C08F 4/44 (2006.01); C08F 210/00 (2006.01); E03B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a catalyst metering device with a valve formed of an iron-based alloy steel hardened to a Rockwell hardness C of at least 60. The device can be used for metering of a catalyst for an ethylene polymerization reaction. The invention further relates to ethylene polymerization wherein the catalyst is metered in a catalyst metering device with a iron-based alloy steel hardened valve, as well as to a ethylene polymerization reactor comprising such a catalyst metering device.