Optical fiber cable including a hydrogen-absorbing composition
View Patent ↗The present invention concerns an optical fiber cable including a hydrogen-absorbing composition comprising a catalyst and a hydrogen-absorbing component, characterized in that said hydrogen-absorbing component is a mixture of a non-absorbing polymer matrix and a hydrogen-absorbing organic compound including at least one carbon-carbon triple bond.
1. An optical fiber cable including a hydrogen-absorbing composition comprising a catalyst and a hydrogen-absorbing component, characterized in that said hydrogen-absorbing component is a mixture of a non-absorbing polymer matrix and a hydrogen-absorbing organic compound including at least one carbon-carbon triple bond.
2. A cable according to claim 1 , in which said organic compound has general formula: R 1 —C≡C—R 2 , in which R 1 is a hydrogen atom and R 2 is selected from a linear or branched acyclic hydrocarbon, a cyclic hydrocarbon, a saturated hydrocarbon, an unsaturated hydrocarbon and a hydrocarbon substituted with a heteroatom.
3. A cable according to claim 1 , in which said organic compound has general formula: R 1 —C≡C—R 2 , in which R 1 and R 2 , which may be identical or different, are selected from a linear or branched acyclic hydrocarbon, a cyclic hydrocarbon, a saturated hydrocarbon, an unsaturated hydrocarbon and a hydrocarbon substituted with a heteroatom.
4. A cable according to claim 3 , in which said organic compound is selected from 1,4-bis(phenylethynyl)benzene, 1,2-bis(phenylethynyl)benzene, 9,10-bis(phenylethynyl)anthracene and 5,12-bis(phenylethynyl)naphthacene.
5. A cable according to claim 1 , in which said organic compound is in the solid or liquid form.
6. A cable according to claim 1 , in which said organic compound represents at most 25% by weight of said absorbing component.
7. A cable according to claim 6 , in which said organic compound represents at most 10% by weight of said absorbing component.
8. A cable according to claim 1 , in which said catalyst is selected from a transition metal, a complex or a salt of a transition metal.
9. A cable according to claim 1 , in which said composition is introduced between said optical fiber and said housing tube, constituting a filler gel.
10. A cable according to claim 9 , in which said matrix is selected from a silicone material and a polyolefinic material.
11. A cable according to claim 1 , in which said composition constitutes said housing tube.
12. A cable according to claim 11 , in which said matrix is a thermoplastic polymer.
13. A cable according to claim 1 , in which said composition constitutes the outer layer of said optic fiber coating.
14. A cable according to claim 1 , in which said composition constitutes the cladding for an optical fiber strip.
15. A cable according to claim 13 , in which said matrix is a polyurethane acrylate.
16. A cable according to claim 1 , in which said composition is deposited on the inner surface of said housing tube in the form of a layer.
17. An optical fiber cable component comprising a hydrogen-absorbing composition according to claim 1 .