Silane-grafted olefin polymers, compositions and articles...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 255/04 (2006.01) C08L 51/06 (2006.01) C09J 151/06 (2006.01)

Patent

CA 2615702

The invention relates compositions containing at least one silane-grafted polyolefin, and in particular, to compo-sitions containing at least one silane-grafted ethylene/.alpha.-olefin polymer, which has a melt viscosity less than 50,000 cP, and adhe-sives containing the same. In one embodiment, the at least one silane- grafted ethylene/.alpha.-olefin polymer is formed from an ethy-lene/.alpha.-olefin polymer that has a molecular weight distribution from 1 to 3.5. The invention also relates to the preparation of the silane-grafted polymers, by reacting, for example, an ethylene/.alpha.- olefin polymer with at least one silane compound and at least one initiator.

L'invention concerne des compositions renfermant au moins une polyoléfine greffée silane et, plus précisément, des compositions renfermant au moins un polymère d'éthylène/a-oléfine greffé silane, possédant une viscosité à l'état fondu inférieure à 50,000 cP et des adhésifs renfermant celles-ci. Dans un mode de réalisation, le polymère d'éthylène/a-oléfine greffé silane est formé à partir d'un polymère d'éthylène/a-oléfine possédant une distribution de poids moléculaire comprise entre 1 et 3,5. L'invention concerne également la préparation des polymères greffés silane consistant à faire réagir, par exemple, un polymère d'éthylène/a-oléfine avec au moins un composé de silane et au moins un initiateur.

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