Fibre optic cable grease composition

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 107/20 (2006.01) C10M 169/00 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2064798

A grease composition for use as a cable filling material which contains about 75 to 95 parts by weight of a base component of a polyol or ester having a molecular weight of at least about 3000 and about 2 to 20 parts by weight of colloidal particles such as silica. Optionally, an antioxidant component can be added to impart high temperature resistance or a rubber component can be added to improve bleed resistance. Also, an article of manufacture of a cable having a sheath with one of the grease compositions of the invention located therein, and a method for filling the cable with such grease compositions.

Composition de graisse destinée à être utilisée comme matière de remplissage pour câbles, contenant environ 75 à 95 parties en poids d'un constituant de base d'un polyol ou d'un ester ayant une masse moléculaire d'au moins environ 3000 et environ 2 à 20 parties en poids de particules colloïdales telles que de la silice. On peut facultativement ajouter un constituant antioxydant afin de conférer une résistance à haute température ou on peut ajouter un constituant de caoutchouc afin d'améliorer la résistance au ressuage. L'invention concerne également un produit de câble comportant une gaine dans laquelle se trouve une des compositions de graisse de l'invention, ainsi qu'un procédé de remplissage du câble avec lesdites compositions de graisse.

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