Fire-resistant polymer formulations

Details Fire-resistant polymer formulations Fire-resistant polymer formulations

C - Chemistry, Metallurgy

08

L

C08L 27/06 (2006.01) C08J 3/18 (2006.01) C08K 3/22 (2006.01) C08L 77/00 (2006.01) C08L 101/04 (2006.01) C09K 21/14 (2006.01) H01B 7/295 (2006.01)

Patent

CA 2277030

In PVC polymer formulations for sheathing for electric wires and cables, it has been determined that antimony trioxide and divalent metal (e.g. zinc) stannate or hydroxystannate can provide a synergistic flame-retardant additive combination. In this invention, polymer formulations using this flame-retardant additive combination contain not more than 1.5 wt% of antimony trioxide.

Dans le cadre des formulations polymères PVC utilisées pour gainer les fils et les câbles électriques, il a été démontré que le trioxyde d'antimoine et le stannate ou l'hydroxystannate de métal divalent (par exemple de zinc) pouvaient former une association d'additifs ignifuges synergiques. Dans la présente invention, les formulations polymères renfermant cette association ne contiennent pas plus de 1,5 % en poids de trioxyde d'antimoine.

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