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:
Mar. 06, 2012
Filed:
May. 01, 2008
Vincenzo Busico, Naples, IT;
Francesca Alfano, Naples, IT;
Harold W. Boone, Sugar Land, TX (US);
Roberta Cipullo, Naples, IT;
James C. Stevens, Richmond, TX (US);
Vincenzo Busico, Naples, IT;
Francesca Alfano, Naples, IT;
Harold W. Boone, Sugar Land, TX (US);
Roberta Cipullo, Naples, IT;
James C. Stevens, Richmond, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for forming a high molecular weight, multi-block copolymer comprising two or more chemically distinguishable segments or blocks, the process comprising polymerizing one or more olefin monomers in the presence of a chain shuttling agent and a catalyst composition comprising two or more olefin polymerization catalysts capable of preparing polymers having differing chemical or physical properties under equivalent polymerization conditions, or a catalyst composition comprising at least one olefin polymerization catalyst containing multiple active catalyst sites capable of preparing polymers having differing chemical or physical properties.