Multiple layer interlayers having a gradient region

B - Operations – Transporting – 32 – B

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B32B 17/10 (2006.01) B32B 27/06 (2006.01)

Patent

CA 2668043

The present invention provides multiple layer interlayers that can be used in multiple layer glass panel type applications to reduce the amount of sound transmitted through the panel while also providing a colored region within a gradient region. The acoustic effect can be achieved by using two or more polymer sheets having differing compositions that have been combined into a single multiple layer interlayer, and the gradient region effect is achieved by forming a colored region in one or more gradient regions of the individual layers.

La présente invention porte sur des intercouches à couches multiples que l'on peut utiliser dans des applications de type panneau de verre à couches multiples pour réduire la quantité de son émise à travers le panneau tout en fournissant également une région colorée dans une région de gradient. L'effet acoustique peut s'obtenir en utilisant deux ou plusieurs feuilles polymères de compositions différentes que l'on a combinées en une simple intercouche à couches multiples, et l'on obtient l'effet de région de gradient en constituant une région colorée dans une ou plusieurs régions de gradient des couches individuelles.

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