| 摘要 |
A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: <IMAGE> wherein R and R1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C1 to C8 alkyl, C1 to C8 alkoxy; or R and R1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R2 is C1 to C8 alkyl, C1 to C18 alkoxy, C6 to C18 aryl, C1 to C8 acyloxy, C6 to C18 substituted or unsubstituted aryloxy; R3 and R4 are independently selected from C1 to C18 alkoxy, C6 to C18 substituted or unsubstituted aryloxy or C1 to C8 acyloxy; Y is C1 to C8 alkylene, C6 to C18 substituted or unsubstituted arylene or -CH2CH2NH(CH2)3-. Partial condensation products of the silanes also have been found to inhibit water treeing in ethylene polymers.
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