Electric cables and compositions for making them

Details Electric cables and compositions for making them Electric cables and compositions for making them

C - Chemistry, Metallurgy

08

L

C08L 31/04 (2006.01) C08K 3/22 (2006.01) C08K 5/14 (2006.01) G02B 6/44 (2006.01) H01B 3/44 (2006.01) H01B 7/18 (2006.01)

Patent

CA 2076313

ABSTRACT Electric Cables and Compositions for making them A cable has at least one electrical or optical core which is enclosed in a sheath made of a composition having at ambient temperatures a tensile strength of at least 7MPa, an elongation at break of at least 150%, a tear strength of at least 4kN/m and a linear swell not greater than 15% after immersion in ASTM No.2 oil for 168 hours at 100°C (all measured on moulded samples of the composition) and at 120°C a Mooney Viscosity (ML1+5) less than 50. The composition (before curing) comprises (in parts by weight, where applicable): a polymer base consisting substantially of an ethylene/vinyl acetate copolymer having a vinyl hcetate content in the range 50- 75% and a Mooney Viscosity (ML1+4) in the range 20 to 35; per hundred parts of the polymer base, 120-175 parts of an alumina trihydrate filler with a BET surface area in the range 4 to 12m2/g and optionally up to 50 parts of a reinforcing filler subject to a maximum total filler content of 200 parts; per hundred parts of total filler, 0.4 to 2 parts of a silane coupling agent; conventional amount of antioxidant, hydrolytic degradation inhibitor and release agent and optionally of pigment, plasticiser and/or dessicant; and a chemical curative system in an amount chosen in conjunction with time/temperature conditions to achieve a hot elongation in the range from 26 to 120% in hot-set test following the procedure of BS6469:1990 at 200°C using a load of 0.8 MPa.

Affiliated with

Also associated with

Rating

Electric cables and compositions for making 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 making them, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric cables and compositions for making them will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1639880