FIELD: physics, optics.
SUBSTANCE: invention relates to fibre optics. The optical fibre core has a primary and a secondary layer laminated on an uncoated optical fibre. The primary layer is formed by curing a UV curable polymer composition containing a first silane binding agent which can be incorporated into the polymer skeleton. A second silane binding agent cannot be incorporated into the polymer skeleton. The first silane binding agent contains a radically polymerisable reactive group and a compound having one or more methoxyl groups. The second silane binding agent does not contain any radically polymerisable reactive group but contains a compound having one or more ethoxyl groups.
EFFECT: invention improvement.
9 cl, 3 dwg, 12 tbl
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