H - Electricity – 01 – B
Patent
H - Electricity
01
B
31/97
H01B 3/22 (2006.01) H01B 7/285 (2006.01)
Patent
CA 1156450
ABSTRACT A low-tack, non-cell-filling filling medium for telecommunication cables comprises in parts (by weight):- (a) 70 - 98% of a hydrocarbon base; (b) 1 - 15% of a block copolymer which comprises at least one block tending to confer solubility in the base and at least one block tending to inhibit such solubility, the proportions of the blocks being such that the polymer shows a strong tendency to form a gel with the base; and (c) 1 - 15% of a hydrocarbon material that is miscible with the medium at high temperatures but forms solid dispersed particles on cooling at a temperature not lower than 65°C: the base (a) comprising: (i) 0 - 95% of a mineral oil with or without wax, for example in the form of petroleum jelly; and (ii) 5 - 100% of a hydrocarbon or hydrocarbon mixture whose molecules are substantially incapable of diffusing into polyethylene, polypropylene or other cellular insulating material at temperatures of up to 80°C and, when mineral oil is present being soluble in it and having a low enough (number average) molecular weight to reduce significantly the osmotic pressure of the medium.
393318
Bicc Limited
Corning Communications Limited
Fetherstonhaugh & Co.
LandOfFree
Electric cables and compositions for use in them does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric cables and compositions for use in them, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric cables and compositions for use in them will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1087202