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:
Aug. 25, 2015
Filed:
Aug. 06, 2010
Dario Ghidoni, Gonzaga, IT;
Alessandra Simonelli, Mantova, IT;
Antonio Ponticiello, Mozzecane, IT;
Andrea LA Piccirella, Modena, IT;
Dario Ghidoni, Gonzaga, IT;
Alessandra Simonelli, Mantova, IT;
Antonio Ponticiello, Mozzecane, IT;
Andrea La Piccirella, Modena, IT;
POLIMERI EUROPA S.p.A., San Donato Milanese, IT;
Abstract
Process for the preparation of beads of expandable vinyl aromatic polymers by means of polymerization in aqueous suspension, which comprises polymerizing at least one vinyl aromatic monomer in aqueous suspension in the presence of a peroxide initiator system, active at a temperature higher than 800 C, an expanding agent, and in the presence of: —an amide having the general formula RCONHCH—CHNHCOR(I) a flame retardant system comprising a brominated additive with a bromine content higher than 30% by weight.