Enhanced thermal stabilization process for pvc compositions

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

31/77, 400/9271,

C09K 15/12 (2006.01) C08K 5/053 (2006.01) C08K 5/09 (2006.01) C08K 5/37 (2006.01)

Patent

CA 1138182

PRECIS DE LA DIVULGATION: L'invention concerne des compositions stabilisantes pour polymères à base de chlorure de polyvinyle qui comprennent: a) au moins un dérivé organique du zinc, b) au moins un dérivé organique d'un métal du groupe 2a de la classification périodique, c) au moins un polyol, et d) au moins un ester de l'acide thioglycolique. Elle concerne également un procédé de stabilisation de polymères à base de chlorure de polyvinyle par de telles compositions stabilisantes ainsi que les poly- mères stabilisés obtenus. A partir des polymères ainsi sta- bilisés on obtient des objets conformés incolores et trans- parents.

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