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:
Apr. 03, 2012
Filed:
May. 01, 2008
Vincenzo Busico, Naples, IT;
Harold W. Boone, Sugar Land, TX (US);
James C. Stevens, Richmond, TX (US);
Francesca Alfano, Naples, IT;
Roberta Cipullo, Naples, IT;
Vincenzo Busico, Naples, IT;
Harold W. Boone, Sugar Land, TX (US);
James C. Stevens, Richmond, TX (US);
Francesca Alfano, Naples, IT;
Roberta Cipullo, Naples, IT;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for forming tactic polymers employing at least one olefin polymerization catalyst comprising a non-racemic mixture of the R- and S-enantiomers of a metal complex containing at least one asymmetrically substituted (chiral) carbon atom, and a chain shuttling agent, a polar aprotic organic compound, or both a chain shuttling agent and a polar aprotic organic compound.