Process for stabilising styrene-containing recycled plastic...

Details Process for stabilising styrene-containing recycled plastic... Process for stabilising styrene-containing recycled plastic...

C - Chemistry, Metallurgy

08

L

C08L 25/04 (2006.01) C08K 3/18 (2006.01) C08K 5/13 (2006.01) C08K 13/02 (2006.01)

Patent

CA 2166330

Recycled styrene-containing plastic materials occurring in the domestic, commercial or industrial sectors and in useful material collections, can be stabilised against thermo-oxidative degradation by addition of a combination of a sterically hindered phenol with an inorganic compound selected from the series of the metal oxides, metal hydroxides or metal carbonates and, as optional component, a metal salt of a fatty acid.

Des matières plastiques recyclées, contenant du styrène et provenant des secteurs industriels, commerciaux et domestiques et de collectes de matériaux utiles, peuvent être stabilisées par rapport à la détérioration par thermo-oxydation par l'addition d'une combinaison d'un phénol stériquement entravé et d'un composé inorganique choisi dans la série des oxydes métalliques, des hydroxydes métalliques ou des carbonates métalliques, et, éventuellement, d'un sel métallique d'un acide gras.

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