C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 25/40 (2006.01) C09D 133/06 (2006.01)
Patent
CA 2414187
Optical fiber ribbon comprising an optical fiber having a radiation curable internal coating and a radiation curable colored coating disposed to surround said internal coating, and a radiation curable matrix material surrounding one or more of said optical fibers to form a ribbon, in which : said colored coating has a degree of adhesion to the inner coating which is higher than the degree of adhesion to the matrix material; and said optical fiber in said optical fiber ribbon shows, upon aging to the ribbon for at least two weeks in water at 60~C, an increase in the attenuation of the transmitted signal at 1550 nm of less than 0.05 db/km with respect to the attenuation of the assembled optical fiber measured before aging.
L'invention concerne un ruban de fibres optiques comprenant une fibre optique comportant un revêtement interne durcissable par rayonnement et un revêtement coloré durcissable par rayonnement entourant le revêtement interne, et un matériau matriciel durcissable par rayonnement entourant une ou plusieurs de ces fibres optiques afin de former un ruban, dans lequel le revêtement coloré possède un degré d'adhésion au revêtement intérieur qui est supérieur au degré d'adhésion au matériau matriciel, la fibre optique dans le ruban montrant, après vieillissement du ruban pendant au moins deux semaines dans l'eau à 60 ·C, une augmentation de l'atténuation du signal transmis à 1550 nm inférieure à 0,05 db/km par rapport à l'atténuation de la fibre optique assemblée mesurée avant l'étape de vieillissement.
Abel Adrianus Gijsbertus Maria
de Vries Albert Allan
Geus Gouke Dirk Jan
Ginocchio Alessandro
Pizzorno Massimo
Kirby Eades Gale Baker
Pirelli & C. S.p.a.
Prysmian Cavi E. Sistemi Energia S.r.l.
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