Stabilized halogenated polymeric compositions containing a...

C - Chemistry – Metallurgy – 08 – L

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C08L 27/04 (2006.01) C08K 3/26 (2006.01) C08K 5/09 (2006.01) C08K 5/13 (2006.01) C08K 5/57 (2006.01) C08K 13/00 (2006.01)

Patent

CA 2065600

The present invention relates to new stabilized compositions based on halogenated polymer and more specifically on chlorinated polymer. It relates more particularly to stabilized compositions based on chlorinated polymer, which are characterized in that they contain: a) an effective quantity of at least one lead compound or of at least one organostannic compound, and b) an effective quantity of at least one essentially amorphous basic aluminum magnesium carbonate denoted by the formula: (MgO)y, Al2O3, (CO2)x, (H2O)Z where y is an integral or fractional number of moles such that 0 < y ~ 1.7, x is an integral or fractional number of moles such that 0 < x ~ 0.7 and z an integral or fractional number of moles such that zã3 .

La présente invention concerne de nouvelles compositions stabilisées à base de polymère halogéné et plus spécifiquement de polymère chloré. Elle concerne plus particulièrement des compositions stabilisées à base de polymère chloré, caractérisées en ce qu'elles contiennent: a) une quantité efficace d'au moins un composé du plomb ou d'au moins un composé organostannique, b) une quantité efficace d'au moins un carbonate basique essentiellement amorphe d'aluminium et de magnésium, représenté globalement par la formule: (MgO)y, Al2O3, (CO2)x, (H2O)Z dans laquelle: y représente en moles un nombre entier ou fractionnaire tel que 0 < y ~ 1,7: x représente en moles un nombre entier ou fractionnaire tel que 0 < x ~ 0,7; z représente en moles un nombre entier ou fractionnaire supérieur ou égal à 3.

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