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. 26, 2013
Filed:
Nov. 28, 2008
Riccardo Inglese, Castiglione delle Stiviere, IT;
Leonardo Chiezzi, Follonica, IT;
Fabio Montanari, Ravenna, IT;
Alessandro Casalini, Mantova, IT;
Riccardo Inglese, Castiglione delle Stiviere, IT;
Leonardo Chiezzi, Follonica, IT;
Fabio Montanari, Ravenna, IT;
Alessandro Casalini, Mantova, IT;
Polimeri Europa S.p.A., San Donato Milanese, IT;
Abstract
Butadiene is anionically polymerized (or block copolimerized with styrene) in a low-boiling non-polar solvent in presence of rganolithiura compounds. At the end of the polymerization, the non-polar solvent is switched with styrene and the new solution is stored in tanks in relation to the type of polybutadiene (or its block copolymer with styrene) obtained. The polybutadiene solution (and/or its block copolymer with styrene) with the desired set of properties is then fed to a production plant of high impact vinyl aromatic (co)polymers.