C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/06 (2006.01) C08L 23/08 (2006.01)
Patent
CA 2560435
The invention relates to novel multimodal polyethylene polymers comprising a low molecular weight fraction and a high molecular weight fraction, and having a MFR5 of greater than 0.10 g/10 min and less than or equal to 0.22 g/10 min, and a density of greater than equal to 952 kg/m3. The invention also relates to uses of the novel polymers in the production of polymeric articles, especially pipes.
L'invention concerne de nouveaux polymères polyéthyléniques multimodaux qui présentent une fraction de poids moléculaire faible et une fraction de poids moléculaire élevé, un MFR¿5? supérieur à 0,10 g/10 min et inférieur ou égal à 0,22 g/10 min, et une densité supérieure ou égale à 952 kg/m?3¿. Par ailleurs, l'invention concerne l'utilisation de nouveaux polymères dans la production d'articles polymères, en particulier les tuyaux.
Baeckman Mats
Van Marion Remko
Van Praet Eric
Borealis Technology Oy
Riches Mckenzie & Herbert Llp
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