公开(公告)号：US3903013A

公开(公告)日：1975-09-02

申请号：US29881172

申请日：1972-10-19

Applicant: INT STANDARD ELECTRIC CORP

Inventor： FOORD STANLEY GEORGE ,  SIMPSON WALTER ERIC ,  MARTIN PETER IVAN AITKEN

IPC: H01B3/22 ,  H01B7/285 ,  H01B7/29 ,  B01J13/00 ,  H01B3/02

CPC classification number: H01B7/285 ,  H01B3/22 ,  H01B7/292 ,  Y02A30/14

Abstract: A water blocking composition for sheathed stranded cables consisting essentially of a gel of (a) a major proportion by weight of a substantially non-volatile petroleum based oil, said oil being an aromatic extract containing aromatic and saturated hydrocarbons and sulfur containing polar compounds in which has been dispersed (b) a minor proportion by weight of a solid gellant which is insoluble in said oil and which does not melt below 100*C., said gellant being selected from the group consisting of a bentonite clay based gellant and a sub-micron particle sized silica gellant, the gel being substantially devoid of any gellant which is soluble in the oil and melts below 100*C.

Abstract translation: 一种用于护套绞合电缆的防水组合物，其基本上由（a）主要重量比的基本上不挥发性的石油基油的凝胶组成，所述油是含有芳族和饱和烃和含硫极性化合物的芳族提取物，其中 已经分散了（b）小份重量的固体胶凝剂，其不溶于所述油并且在100℃以下不熔化，所述胶凝剂选自膨润土粘土胶凝剂和亚稳定剂， 微米颗粒尺寸的二氧化硅胶凝胶，凝胶基本上不含可溶于油中的任何胶凝剂并且熔点低于100℃。