Stabilizer composition for halogen-containing thermoplastic...

C - Chemistry – Metallurgy – 08 – L

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C08L 27/02 (2006.01) C08K 3/22 (2006.01) C08K 5/3492 (2006.01) C08K 13/02 (2006.01)

Patent

CA 2329303

The present invention relates to a stabilizer composition for halogen- containing thermoplastic resins, the stabilizer composition comprising (a) calcium hydroxide and/or calcium oxide which may optionally be surface-modified; and (b) a hydroxyl group-containing isocyanurate. This stabilizer composition is particularly suited for weather-resistant halogen-containing resin compositions, such as rigid PVC.

L'invention concerne une association de stabilisants pour des résines thermoplastiques halogénées, comportant (a) de l'hydroxyde de calcium et/ou de l'oxyde de calcium pouvant éventuellement être modifiés en surface, et (b) un isocyanurate contenant des groupes hydroxyle. Cette association de stabilisants convient notamment pour des compositions résineuses halogénées résistant aux intempéries, comme du PVC dur.

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