Optical glass fibre having a synthetic resin coating and...

G - Physics – 02 – B

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117/183, 400/515

G02B 6/44 (2006.01) C03C 25/10 (2006.01) C08F 299/06 (2006.01)

Patent

CA 1268583

ABSTRACT: Optical glass fibre having a synthetic resin coating and curable elastomer forming material. The invention relates to an optical glass fibre 1 having a synthetic resin coating which consists of at least two layers 2 and 3 in which the first layer 2 is formed from an elastomer forming material which can be cured by exposure to actinic radiation, and in which the optical glass fibre exhibits a great tensile strength, a small risk of static fatigue fracture and a low ageing rate, owing to the fact that the synthetic resin compo- sition comprises between 0.1 and 5 % by weight of one or more phosphorus compounds of the following structural formula: Image wherein n has a value of 1 or 2 and wherein R represents an organic group, preferably an organic group which co- reacts during curing of the elastomer forming material and is built into the polymeric network thus formed.

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