The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1995
Filed:
Jun. 09, 1994
Claudio Bosisio, Brembate Sotto, IT;
Antonio Campana, Milan, IT;
Pirelli Cavi S.p.A., Milan, IT;
Abstract
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 an iodine number in the 70 to 1,000 mg/g range; 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 days at 100.degree. C. Fiber optic cables according to the invention comprise at least one optical fiber received in a respective housing and, in at least an internal volume portion, an effective amount of said hydrogen-absorbing composition.