Optical fiber with single coating

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 175/16 (2006.01) C03C 25/10 (2006.01) C08G 18/67 (2006.01)

Patent

CA 2758998

The invention relates to an optical fiber comprising a glass core and a protective coating consisting of a single coating layer disposed to surround said glass core, wherein said single coating layer is formed from a cured polymeric material obtained by curing a radiation curable composition comprising (i) a radiation curable urethane (meth)acrylate oligomer, preferably comprising a backbone derived from polyoxytetram-ethylene glycol, (ii) at least one monofunctional reactive monomer, (iii) at least one multifunctional reactive monomer, and (iv) an adhesion promot-er.

L'invention porte sur une fibre optique comprenant une âme de verre et un revêtement protecteur constitué d'une seule couche de revêtement disposée pour entourer ladite âme de verre, ladite unique couche de revêtement étant formée à partir d'une matière polymère durcie obtenue par durcissement d'une composition durcissable par un rayonnement, comprenant (i) un oligomère d'uréthane-(méth)acrylate durcissable par un rayonnement, comprenant de préférence un squelette issu de polyoxytétraméthylèneglycol, (ii) au moins un monomère réactif monofonctionnel, (iii) au moins un monomère réactif polyfonctionnel et (iv) un promoteur d'adhérence.

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