Belantro International Corporation

Universita′ Di Pisa

Giacomo Ruggeri

Francesco Ciardelli

Elisa Passaglia

Mauro Aglietto

Paolo Marcucci

Enzo Mentasti

Giampiero Suffredini

Described herein are polyolefins functionalized with maleic anhydrid and at least one high-boiling ester of the latter, and a process for their preparation in high yields, with high degrees of functionalization, without the production of by-products of cross-linking or degradation. The process, which may be carried out either continuously or discontinuously, is characterized by the use of inorganic substances having a specific porosity, grain size, density and humidity, as vehicles of the functionalizing monomers; the presence of maleic ester contributes to enhancing the reaction efficiency. Likewise described herein is a double-screw extruder devised for carrying out the said process, and the use of products obtained as compatibilizing additives in the field of adhesive and reinforcing polymers.

Polyolefins functionalized with maleic anhydride and with its high-boiling liquids esters, and their use as products with high compatibilizing power

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Pisa, Italy

Giacomo Ruggeri