Dispersible film

Details Dispersible film Dispersible film

C - Chemistry, Metallurgy

08

L

C08L 23/08 (2006.01) B65D 65/46 (2006.01) C08L 23/22 (2006.01)

Patent

CA 2172980

Bales of unvulcanized rubber, or compounding ingredients for unvulcanized rubber are packaged in film or bags made from an ethylene .alpha.-olefin copolymer having a Vicat softening point below 90 °C and a melting point below 100 °C, and optionally a second ethylene copolymer is added to improve processability of the first ethylene copolymer. The second ethylene copolymer will contain more long-chain branches than the first ethylene copolymer. Such films may be included in a rubber compounding operation.

Des balles de caoutchouc non vulcanisé, ou des ingrédients entrant dans la composition dudit caoutchouc sont emballés dans des films ou des sacs faits d'un copolymère de type éthylène/oléfine-.alpha. présentant un point de ramollissement Vicat inférieur à 90 ~C et un point de fusion inférieur à 100 ~C; et facultativement, d'un second copolymère facilitant le traitement du premier et contenant plus de branches à longue chaîne que le premier. Lesdits films peuvent entrer dans les opérations de mélangeage du caoutchouc.

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