Electricity: conductors and insulators – Feedthrough or bushing – Compression
Patent
1985-01-31
1987-10-20
Sikes, William L.
Electricity: conductors and insulators
Feedthrough or bushing
Compression
350 9610, 174 70R, 174110SR, 174118, 523173, 25231501, 2523154, 2523155, G02B 644, H01B 700, H02G 1500, B01J 1300
Patent
active
047010169
ABSTRACT:
A grease composition comprising oil, colloidal particle filler, and, optionally, a bleed inhibitor is disclosed. The grease typically has a critical yield stress below 140 Pa at 20.degree. C., preferably below 70 or 35 Pa. The grease can advantageously be used as a cable filling material, especially for optical fiber cable. In the latter case it can result in cable having substantially no cabling loss. Preferred compositions comprise 77 to 95% b.w. of ASTM type 103, 104A, or 104B paraffinic or naphthenic oil, or polybutene oil; 2 to 15% b.w. of hydrophobic or hydrophilic fused silica; and optionally, up to 15% b.w. of styrene-rubber or styrene-rubber-styrene block copolymer, or semiliquid rubber.
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Optical Fiber Telecommunications, Academic Press, New York, 1979, by S. E. Miller et al, pp. 158-161.
Gartside, III Charles H.
Levy Alvin C.
Overton Bob J.
Taylor Carl R.
American Telephone and Telegraph Company AT&T Bell Laboratories
Healy Brian M.
Pacher Eugen E.
Sikes William L.
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