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. 07, 2009
Filed:
May. 26, 2005
Stefanio Bonsignore, Novara, IT;
Marco Ricci, Novara, IT;
Antonio Alfonso Proto, Novara, IT;
Maria Rivellini, Legal Representative, Novara, IT;
Laura Santi, Legal Representative, Novara, IT;
Stefano Santi, Legal Representative, Novara, IT;
Gian Paolo Ravanetti, Ostiglia, IT;
Andrea Vallieri, Bologna, IT;
Stefanio Bonsignore, Novara, IT;
Marco Ricci, Novara, IT;
Antonio Alfonso Proto, Novara, IT;
Maria Rivellini, legal representative, Novara, IT;
Laura Santi, legal representative, Novara, IT;
Stefano Santi, legal representative, Novara, IT;
Gian Paolo Ravanetti, Ostiglia, IT;
Andrea Vallieri, Bologna, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
Promoters are described for vanadium-based catalysts used in the (co)polymerization of olefins and, in particular, in the production of ethylene/propylene (EPR) or ethylene/propylene/diene (EPDM) elastomeric copolymers. The promoters of the present invention belong to the group of compounds having general formula I: wherein: