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:
Oct. 09, 2007
Filed:
Oct. 03, 2002
Dario Ghidoni, Gonzaga-Mantova, IT;
Roberto Lanfredi, Virgilio-Mantova, IT;
Gilberto Frigerio, Curtatone-Mantova, IT;
Alessandro Casalini, Mantova, IT;
Dario Ghidoni, Gonzaga-Mantova, IT;
Roberto Lanfredi, Virgilio-Mantova, IT;
Gilberto Frigerio, Curtatone-Mantova, IT;
Alessandro Casalini, Mantova, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0.50% by weight of a copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix; c) 0.05-25% by weight, calculated with respect to the polymer (a), of an inorganic filler homogeneously distributed in the polymeric matrix with a substantially spherical granulometry, an average diameter ranging from 0.01 to 100 μm, a refraction index higher than 1.6 and a white index, as defined in 'Colour Index' (third edition published by the Society of Dyers and Colourists, 1982), equal to or lower than 22.