Optical cable with filling material comprising an internal olefin oligomer
First Claim
1. An optical cable comprising at least one optical fiber and a filling material wherein said filling material comprises an internal polyolefin oligomer based on an internal olefin monomer comprising the product of polymerization of two or more hydrocarbon monomeric units, where said monomeric units comprise a hydrocarbon chain having at least one unsaturation distributed randomly along the whole of said hydrocarbon chain, and said two or more monomeric units comprise a maximum of 10% of monomeric units having a double bond in an α
- -position.
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Abstract
The present invention relates to an optical fiber cable comprising a filling material and to the composition of said filling material. In particular, the filling composition according to the present invention comprises an internal polyolefin oligomer to provide an improved capacity for wetting the coating surfaces of the optical fibers which it comes into contact with, and provides better slip of the optical fibers embedded in the composition. The oligomers of the invention comprise internal polyolefins obtained by polymerizing two or more hydrocarbon monomeric units having at least one unsaturation distributed randomly along the whole hydrocarbon chain wherein a mixture of these monomeric units comprises a maximum of 10% of monomeric units having the double bond in the α-position.
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Citations
21 Claims
- 1. An optical cable comprising at least one optical fiber and a filling material wherein said filling material comprises an internal polyolefin oligomer based on an internal olefin monomer comprising the product of polymerization of two or more hydrocarbon monomeric units, where said monomeric units comprise a hydrocarbon chain having at least one unsaturation distributed randomly along the whole of said hydrocarbon chain, and said two or more monomeric units comprise a maximum of 10% of monomeric units having a double bond in an α
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17. A composition for filling material for optical cables, comprising an internal polyolefin oligomer based on an internal olefin monomer comprising the product of polymerization of two or more hydrocarbon monomeric units, where said monomeric units comprise a hydrocarbon chain having at least one unsaturation distributed randomly along the whole of said hydrocarbon chain, and said two or more monomeric units comprises a maximum of 10% of monomeric units having a double bond in an α
- -position, said oligomer being combined with a polymeric thickener.
- View Dependent Claims (18, 19, 20, 21)
Specification