Thixotropic grease composition and articles comprising same

Details Thixotropic grease composition and articles comprising same Thixotropic grease composition and articles comprising same

C - Chemistry, Metallurgy

10

M

253/17, 88/97

C10M 125/26 (2006.01) G02B 6/44 (2006.01) H01B 3/20 (2006.01) H01B 7/00 (2006.01)

Patent

CA 1288409

- 27 - TABLES CONTAINING GREASE COMPOSITION Abstract This invention concerns cables, such as communication cables, especially optical fiber cables in which voids are at least partially filled with a grease composition. A grease composition comprises oil, colloidal particle filler, and optionally, a bleed inhibitor. The grease typically has a critical yield stress below 140 Pa at 20°C, preferably below 70 or 35 Pa. 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. Optical fiber cables filled with such a grease as a cable filling material result in cables having substantially no cabling loss.

500069

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