Adhesion process

A - Human Necessities – 63 – B

Patent

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A63B 37/00 (2006.01) A63B 37/02 (2006.01) A63B 37/04 (2006.01) A63B 37/06 (2006.01) A63B 37/08 (2006.01) A63B 39/00 (2006.01) A63B 43/00 (2006.01) A63B 43/06 (2006.01) B29C 65/00 (2006.01)

Patent

CA 2450763

Disclosed is a process to increase adhesion between two adjacent layers. The process comprises roughening the surface of one layer followed by chlorination of the roughened surface and joining of the layers, or treating the surface of one layer with a silicone-based adhesion promoter and joining the layers. In one preferred embodiment the process comprises roughening the surface of one layer, followed by chlorination of the roughened surface, joining of the layers and post-treatment of the molded layers at an elevated temperature for a predetermined time.

Procédé visant à accroître l'adhérence entre deux couches adjacentes. Le procédé comporte les étapes consistant à rendre rugueuse la surface d'une couche, à chlorer ensuite cette surface rugueuse et à réunir les couches ; ou à traiter la surface d'une couche à l'aide d'un promoteur d'adhérence à base de silicone et à réunir les couches. Dans un mode de réalisation préféré, le procédé comporte les étapes consistant à rendre rugueuse la surface d'une couche, à chlorer ensuite cette surface, à réunir les couches, et à soumettre les couches moulées à un traitement ultérieur à température élevée pendant une durée prédéterminée.

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