Another problem was associated with the introduction of fully-filled telephone cable designs wherein the cable core is filled with a grease-like compound to prevent ingress and migration of water. The corrodible bare spots may occur on either side of the shielding tape but the problem is ...
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important because it facilitates the formation of a film having a continuous base polymer phase with a discrete stabilizing agent phase dispersed therein the continuous base polymer phase thereby improving the oil and grease resistance as well as providing a barrier for moisture and vapor transmission....
While HDPE, LLDPE and ULDPE extrusion compositions offer improved abuse resistance, toughness properties and barrier resistance (against, for example, moisture and grease permeation), these linear ethylene polymers cannot be extruded or drawn down at high take-off rates and they are known to exhibit...