Borealis Ag

Abu Dhabi Polymers Company Limited (borouge) L.l.c.

Nicke Bergman

Norbert Reichelt

Jari Äärilä

Udo Muster

Ashish Kumar

Velichko Hristov

Wolfgang Gierlinger

Sanna Martin

Andrey Buryak

Kshama Motha

Süleyman Deveci

The present invention is directed to a process for producing a modified olefin polymer in an extruder having a feed zone, a melting zone, optionally a mixing zone and optionally a die zone, (A) introducing a stream of an olefin polymer into the feed zone of the extruder; (B) introducing a stream of a free radical generator directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (C) introducing a stream of a functionally unsaturated compound directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (D) extruding the mixture in the extruder at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder; and, optionally, (G) passing the melt of the modified olefin polymer through the die zone to a pelletiser.

Process for producing modified olefin polymer in an extruder

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Nösund, Sweden

Nicke Bergman