Manufacture of polyvinybutyral, and products made from said...

C - Chemistry – Metallurgy – 08 – F

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154/111, 402/68

C08F 8/28 (2006.01) B32B 17/10 (2006.01)

Patent

CA 1245397

ABREGE DESCRIPTIF L'invention concerne la fabrication d'un poly- vinylbutyral amélioré. Selon l'invention, on prépare le polyvinylbutyral par réaction d'alcool polyvinylique en solution aqueuse et d'aldéhyde butyrique, en présence d'un catalyseur acide et de dioctylsulfosuccinate de sodium en tant qu'émulsifiant. Le polyvinylbutyral peut être utilisé comme intercalaire dans les vitrages feuil- letés.

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