Compositions for cables filling
AssigneeDynasol Elastomeros, S.A.
InventorsJuan Antonio Barrio Calle, Carlos Gonzalez Gonzalez, Juan Antonio Prieto Noguera
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Abstract
The invention relates to compositions for cables filling wherein a styrene-butadiene block copolymer with radial structure is used as a gelling agent. This polymer is obtained through styrene and butadiene sequential polymerization and subsequent reaction with a coupling agent preferably of type Cl4-nMRn, wherein M=Sn or Si, R is an alkyl or aryl group and n is an integer from 0 to 2, and hydrogenation of the resulting polymer. This type of copolymer brings a higher stability to the final properties of the gel as compared with the linear hydrogenated synthetic rubbers usually used in the prior art.
Claims22
A stable composition for cable filling comprising a mineral or synthetic oil and a radial hydrogenated styrene-butadiene block copolymer.
Dependencies are inferred from the claim text.