Highly flexible, halogen-free and flame-retardant...

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 3/22 (2006.01) C08L 23/08 (2006.01) H01B 7/295 (2006.01)

Patent

CA 2734581

Compositions comprising at least one thermoplastic polymer as component A, at least one C2-C4-.alpha.- olefin-vinyl acetate copolymer having vinyl acetate content of > 40% by weight as component B, at least one plastomer produced via metallocene catalysis and based on ethylene and on at least one C4-C8-olefin as component C, where component C differs from component A, at least one polyolefin homo- or copolymer modified with an unsaturated carboxylic acid or with a derivative thereof, as component D, at least one flame retardant as component E, and also optionally one or more further auxiliaries and additives, a process for producing the compositions of the invention, the use of the compositions of the invention as insulation materials or, respectively, sheathing materials for cables or lines, insulation materials or, respectively, sheathing materials for cables or lines, comprising the composition of the invention, and also cables or lines which comprise the composition of the invention.

Linvention concerne des compositions comportant au moins un polymère thermoplastique en tant que composants A, au moins un copolymère de a-oléfine en C2-C4-acétate de vinyle ayant une teneur en acétate de vinyle supérieure à 40 % en poids en tant que composants B, au moins un plastomère à base déthylènes produit par catalyse métallocène et au moins une oléfine en C4-C8 en tant que composants C, les composants C étant différents des composants A, au moins un homopolymère ou copolymère de polyoléfine, modifié avec un acide carboxylique non saturé ou un dérivé de celui-ci, en tant que composants D, au moins un agent ignifuge en tant que composants E, ainsi que, le cas échéant, un ou plusieurs additifs ou auxiliaires supplémentaires. Linvention concerne également un procédé de production des compositions selon linvention, lutilisation des compositions selon linvention en tant que matériaux disolation ou de gainage pour des câbles ou des conduites, des matériaux disolation ou de gainage pour des câbles ou des conduites présentant les compositions selon linvention, et des câbles ou des conduites présentant les compositions selon linvention.

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