Polyolefins containing catalyst residues stabilized with...

Details Polyolefins containing catalyst residues stabilized with... Polyolefins containing catalyst residues stabilized with...

C - Chemistry, Metallurgy

08

K

C08K 5/52 (2006.01) C08K 5/527 (2006.01) C08L 23/04 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2201093

Polyolefins prepared using new supported catalysts the residues of which are not removed from said polyolefin exhibit difficult stabilization problems, especially poor weatherability, caused by the presence of said residues still remaining in the polyolefin. The use of trialkanolamine trisphosphites ameliorates these stabilization difficulties and leads to excellent polymer stabilization inspite of the catalyst residues.

Les polyoléfines préparées au moyen des nouveaux catalyseurs sur support dont les résidus ne sont pas enlevés des polyoléfines, exhibent des difficultés de stabilisation, plus particulièrement une résistance médiocre aux intempéries, résultant de la présence de ces résidus dans la polyoléfine. L'utilisation de trisphosphites de trialcanolamine réduit ces difficultés de stabilisation et mène à une excellente stabilisation polymérique, malgré la présence des résidus des catalyseurs.

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