A wire or cable insulated with a dielectric composition stabilized against water treeing with organo silane compounds and its use

Claim 2

An electric wire or cable which comprises a metallic conductor and an insulation resistant to water treeing of a dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: wherein R 1 is hydrogen or C 1 to C 4 alkyl; Y is C 1 to C 8 alkylene or C 6 to C 18 substituted or unsubstituted arylene; R 2 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C 6 to C 18 substituted or unsubstituted aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy or C 6 to C 18 substituted or unsubstituted aryloxy.

Claim 3

An electric wire or cable as in claim 1, wherein said water treeing inhibitor is:

Claim 4

An electric wire or cable as in claim 1 - 2, wherein said ethylene polymer is a copolymer.

Claim 5

An electric wire or cable as in claim 3, wherein said copolymer comprises an ethylene-α-olefin copolymer.

Claim 6

An electric wire or cable as in claim 4, wherein said ethylene- α-olefin copolymer is ethylene-α-butene copolymer.

Claim 7

An electric wire or cable as in claim 1 - 5, wherein the dielectric composition comprises cross- linking effective amounts of at least one cross-linking agent.

Claim 8

An electric wire or cable as in claim 6, in which said cross-linking agent comprises at least one organic peroxide.

Claim 9

An electric wire or cable as in claim 7, in which said organic peroxide comprises dicumyl peroxide.

Claim 10

In a process for employing an olefin polymer insulated wire or cable construction in a water containing environment, the improvement which comprises employing as said construction one in which the insulation is a composition comprising ethylene polymer and effective amounts, as a water treeing inhibition, of at least one organo silane of the following formula: wherein R 1 is hydrogen or C 1 to C 4 alkyl; Y is C 1 to C 8 alkylene or C 6 to C 18 substituted or unsubstituted arylene; R 2 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C6 to C 18 substituted or unsubstituted aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy or C 6 to C 18 substituted or unsubstituted aryloxy.

Claim 11

In a process for employing an olefin polymer insulated wire or cable construction in a water containing environment, the improvement which comprises employing as said construction one in which the insulation is a composition comprising ethylene polymer and effective amounts, as a water treeing inhibition, of at least one organo silane of the following formula: wherein R 1 is hydrogen or C 1 to C 4 alkyl; Y is C 1 to C 8 alkylene or C 6 to C 18 substituted or unsubstituted arylene; R 2 is C 1 to C 8 alkyl, C 1 to C 8 alkoxy, C6 to C 18 substituted or unsubstituted aryl, C 1 to C 8 acyloxy, C 6 to C 18 substituted or unsubstituted aryloxy; R 3 and R 4 are independently selected from C 1 to C 8 alkoxy, C 1 to C 8 acyloxy or C 6 to C 18 substituted or unsubstituted aryloxy.