Thermal activation of films

Details Thermal activation of films Thermal activation of films

C - Chemistry, Metallurgy

09

J

C09J 5/06 (2006.01) C08J 5/12 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2499589

Weatherproof and UV-resistant films based on poly(meth)acrylates are increasingly used for laminating plastic profiles, particularly profiles made of thermoplastic materials, wood or wood materials that, due to the high glass transition temperature of the film polymers, are difficult to bond using conventional methods. The invention relates to a method according to which this film is thermally activated before bonding thus enabling a rapid and reliable bonding in laminating methods.

Des films résistants aux intempéries et aux U.V., à base de poly(méth)acrylates, sont de plus en plus utilisés pour laminer des profilés en matière plastique, notamment des profilés en matériaux thermoplastiques, en bois ou en matériaux ligneux, lesdits films étant difficiles à coller avec des procédés classiques, en raison de la température de transition vitreuse élevée du polymère pelliculaire. L'invention concerne un procédé selon lequel ce film est activé par voie thermique avant le collage, ce qui permet d'obtenir un collage rapide et fiable en matière de laminage.

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