Heat-sealable polyolefins and articles made therefrom

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/18 (2006.01) C08F 4/70 (2006.01) C08F 10/02 (2006.01) C08F 110/02 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2381161

Polyolefins, preferably polyethylene, having a density of about 0.86 to about 0.93 g/mL, and having methyl branches and at least branches of two other different lengths of six carbon atoms or less, form heat seals at exceptionally low temperatures, thereby allowing good seals to be formed rapidly. This is advantageous when heat sealing these polyolefins, for example in the form of single or multilayer films.

L'invention concerne des polyoléfines, de préférence un polyéthylène, ayant une densité comprise entre 0,86 environ et 0,93 environ g/ml, et comportant des ramifications méthyle et au moins deux autres ramifications de longueurs différentes constituées de six atomes de carbone au plus, formant des joints thermiques à des températures exceptionnellement basses, et permettant ainsi d'obtenir d'excellents joints rapidement. Cela est avantageux pour le scellage à chaud desdites polyoléfines, par exemple, sous la forme de films monocouche ou multicouche.

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