Thixotropic grease composition

Details Thixotropic grease composition Thixotropic grease composition

1987-05-20

1989-03-07

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

2523154, 252 56R, C10M10304

Patent

active

048103950

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, 104 A, 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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patent: 3525689 (1970-08-01), Marotta
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patent: 4333706 (1982-06-01), Davis et al.
patent: 4396514 (1983-08-01), Randisi
patent: 4464013 (1984-08-01), Sabia
patent: 4701016 (1987-10-01), Gartside
Optical Fiber Telecommunications, editors S. E. Miller and A. G. Chynoweth (1979), pp. 158-161.

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