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:
May. 10, 2005
Filed:
Jun. 19, 2003
Applicants:
Bart Hessen, Noordwijk, NL;
Sergio DE Araujo Bambirra, Groningen, NL;
Inventors:
Bart Hessen, Noordwijk, NL;
Sergio De Araujo Bambirra, Groningen, NL;
Assignee:
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F004/44 ;
U.S. Cl.
CPC ...
Abstract
A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by an anionic amidinate ancillary ligand. Upon reaction with an activator, the complex becomes an active olefin-polymerization catalyst. Some invention processes give narrow polymer polydispersities.
Hessen, Bart. (2005). Yttrium-based ethylene polymerization catalysts with bulky amidinate ancillary ligands (U.S. Patent No. 6891006). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6891006
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile