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Gianfranco Biglione, Giuseppe Cigna, Roberto Rinaldi: Process for the production of expandable granules of thermoplastic polymers and relative apparatus. Montedison S p A, August 19, 1986: US04606873 (26 worldwide citation)

A process for the production of expandable granules of thermoplastic polymers comprising: (a) the extrusion of the polymer in which an expanding agent is incorporated, through a die-head in order to obtain an expandable polymer; (b) immediate cooling of this polymer in water, kept at a temperature a ...


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Giuseppe Cigna, Gian C Fasulo, Gianfranco Biglione, Italo Borghi: Stengthened high impact styrene polymers showing improved physical-mechanical properties. Montedipe S p A, Stevens Davis Miller & Mosher, July 18, 1989: US04849473 (6 worldwide citation)

Strengthened high impact resistant styrene polymers having improved physical-mechanical properties, particularly a high resilience at room temperature and at lower temperatures, and break elongation, containing as a dispersed phase an olefinic rubber, preferably an ethylene-propylene or an ethylene- ...


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Savino Matarrese, Anna Grazia Rossi, Mauro Lo Consolo, Giuseppe Cigna, Italo Borghi: Process for the continuous production in solution of styrene thermoplastic resins. Montedipe S p A, Stevens Davis Miller & Mosher, May 15, 1990: US04925896 (6 worldwide citation)

Process for the continuous production in solution of styrene thermoplastic resins by polymerization of a vinyl-aromatic monomer and of a vinyl-nitrile monomer in the presence of an elastomer and of a starter, wherein polymerization is conducted in two or more steps, wherein the elastomeric component ...


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Giuseppe Cigna, Paolo Catarsi, Maria C Mussatto, Fabrizio Vivaldini, Stefano Campolmi: Self-extinguishing expandable polystyrene particles having an improved processability. Montedison S p A, September 13, 1983: US04404293 (3 worldwide citation)

Self-extinguishing expandable polystyrene particles containing an expanding agent, a self-extinguishing organic halogen-containing compound and a 2,4,6-triamino-1,3,5-triazine derivative.


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