Hydrogen-absorbing composition for optical fiber cables and optical fiber cables incorporating such composition

Abstract From the Canadian patent

A hydrogen-absorbing composition for optical fiber cables comprises a catalyst selected from the group including the transition metals their salts and organic and inorganic complexes and a hydrocarbon compound including at least 90% of a substantially homogeneous silicon-free hydrocarbon not obtained by polymerization of monomers including conjugate dienes and having double bonds reactive to hydrogen at room temperature in a corresponding amount to a iodine number in the 70 to 1,000 mg/g range and as such: a viscosity in the 500 to 70,000 cSt range at room temperature; and a viscosity at room temperature lower than 70,000 cSt after ageing by exposure to air in thin layer, for at least 7 …