Flame retardant composition with excellent processability

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 3/22 (2006.01) H01B 3/00 (2006.01)

Patent

CA 2537130

The present invention is a flame retardant composition comprising (a) a first ethylene polymer; (b) a second ethylene polymer having a density less than 0.95 grams/cubic centimeter and being modified with an unsaturated aliphatic diacid anhydride; (c) a flame retardant; and (d) an ultra high molecular weight polysiloxane. The invention also includes a coating prepared from the flame retardant composition as well as a wire-and-cable construction made by applying the coating over a wire or a cable. The invention also includes articles prepared from the flame retardant composition, such as extruded sheets, thermoformed sheets, infection-molded articles, coated fabrics, construction materials and automotive materials.

La présente invention concerne composition ininflammable qui comprend (a) un premier polymère éthylène, (b) un second polymère éthylène possédant une densité inférieure à 95 grammes par cm?3¿ modifié avec un anhydride diacide aliphatique insaturé, (c) une charge ignifugeante et, (d) un polysiloxane de masse moléculaire ultralégère. Cette mention comprend aussi un revêtement préparé à partir de cette composition ininflammable ainsi qu'une construction de fil et de câble effectuée par l'application de ce revêtement sur un fil ou un câble. Cette invention concerne aussi des articles préparés à partir de cette composition ininflammable, tels que des feuilles extrudées, des feuilles thermoformées, des articles moulés par injection, des toiles revêtues, des matériaux de construction et des matériaux de l'industrie automobile.

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