C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 27/16 (2006.01) C08L 23/02 (2006.01)
Patent
CA 2511872
This invention relates to a masterbatch containing by weight: 1 to 50% .cndot. of a masterbatch containing at least one fluoropolymer (A) and at least one interface agent (B), 99 to 50%.cndot. of a polyolefin (C), .cndot. such as the two components (A) and (B) were first intimately mixed at a temperature where at least one was a molten mass or had a molten surface, and were then mixed with the polyolefin (C). The invention also relates to the use of the masterbatch as a processing aid in extruding a polyolefin (D), specifically for extruding polyolefin film. The invention also relates to the process for producing the masterbatch.
La présente invention concerne un mélange maître comprenant en poids: .cndot. de 1 à 50% d'un mélange d'au moins un polymère fluoré (A) et d'au moins un agent d'interface (B), .cndot. de 99 à 50% d'une polyoléfine (C), .cndot. tel que les deux constituants (A) et (B) ont été d'abord mélangés de façon intime à une température telle que l'un au moins soit à l'état fondu dans sa masse ou à sa surface, puis sont ensuite mélangés avec la polyoléfine (C). L'invention concerne aussi l'utilisation du mélange maître comme processing aid pour extruder une polyoléfine (D), en particulier pour extruder une polyoléfine sous forme de film. L'invention concerne aussi le procédé d'obtention du mélange maître.
Barriere Benoit
Bonnet Anthony
Laffargue Johann
Marot Gilles
Arkema
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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