Prysmian Cavi E Sistemi Energia S.r.l.

Marco Armondi

Giacomo Stefano Roba

Lidia Terruzzi

Johannes Adrianus Van Eekelen

Sabrina Fogliani

Gouke Dirk Jan Geus

Adrianus Gijsbertus Maria Abel

Sandra Joanna Nagelvoort

Duurt Pieter Willem Alkema

An optical fiber having an internal glass portion, a first coating layer surrounding the glass portion and a second coating layer surrounding the first coating layer. The first coating layer is formed from a cured polymeric material obtained by curing a radiation curable composition having a radiation curable oligomer having a backbone derived from polypropylene glycol and a dimer acid based polyester polyol. The cured polymeric material has: (a) a hardening temperature (Th) from &#x2212;10&#xb0; C. to about &#x2212;20&#xb0; C. and a modulus measured at the Th lower than 5.0 MPa; or (b) a hardening temperature (Th) from &#x2212;20&#xb0; C. to about &#x2212;30&#xb0; C. and a modulus measured at the Th lower than 20.0 MPa; or (c) a hardening temperature (Th) lower than about &#x2212;30&#xb0; C. and a modulus measured at the Th lower than 70.0 MPa.

Optical fiber with reduced attenuation loss

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Pavia, Italy

Marco Armondi