C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/52 (2006.01) C08F 8/40 (2006.01) C08F 10/02 (2006.01) C08K 5/51 (2006.01)
Patent
CA 2464551
This invention provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. The stabilizer package of this invention is "phenol free" and must contain at least one aryl monophosphite and at least one diphosphite. The process of this invention is especially suitable for the manufacture of polyethylene film.
La présente invention fournit un procédé qui permet la stabilisation des polyoléfines thermoplastiques lors des opérations de traitement par fusion. Le système de stabilisation de cette invention est sans phénol et doit contenir au moins un arylmonophosphite et au moins un diphosphite. Le procédé auquel fait appel cette invention convient tout particulièrement pour la fabrication de film de polyéthylène.
Aubee Norman Dorien Joseph
Chisholm P. Scott
Ellis Laura Elaine
Gibbons Ian Robert
Sauvageau Denny Paul
Chisholm P. Scott
Nova Chemicals Corporation
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