Process for manufacturing a composition based polymer crosslinked by silane composition and obtained by this process, and method of manufacturing a cable provided with a sheath of this composition.

摘要

Process for manufacturing a composition based polymer crosslinked by silane, comprising the following operations: a) mixing: i. a polymer base or a thermoplastic polymer mixture of thermoplastic base containing a fireproof load ii. a polymer carrier of a crosslinking agent based on silane, said polymer being solid carrier and chosen among porous polymers of sponge type, inflatable polymers and encapsulated soluble or dispersible in said base polymer and does not react with the silane iii. generator b free radicals) said mixture c heated) said mixture is exposed to a sufficient amount of water to allow the crosslinking of said polymer characterized basis occurs because during the heating operation, said mixture is brought to a temperature such that it causes the decomposition of said free radical generator without causing the decomposition of said filler, said flame-retardant loading of alumina trihydrate, wherein said free radical generator chosen as the temperature of complete decomposition is less than 165C, and that said crosslinking operation is carried out to the ambient atmosphere.