Casting compositions for producing electrical insulators
AssigneeABB Research Ltd.
InventorsUwe Kaltenborn, Jens Rocks
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Abstract
The present invention relates to a liquid or pastelike casting composition based on a polymeric matrix resin or on a mixture of such resins for producing self-healing electrical insulators, the casting composition including in uniform distribution a selected hydrophobicizing compound or a mixture of such compounds in encapsulated form. The casting composition includes a thermosettable casting resin system, based preferably on a thermosettable polycondensate, a thermosettable polyadduct, and/or a hybrid form thereof.
Claims36
A liquid or paste-like casting composition suitable for the production of a self-healing electrical insulator comprising:
- a polymeric matrix resin or a mixture of said resins comprising a thermosettable casting resin system selected from thermosettable polycondensates, thermosettable polyadducts, hybrid forms and mixtures thereof,
- wherein (i) in uniform distribution is present a hydrophobicizing compound or a mixture of said compounds selected from flowable fluorinated or chlorinated hydrocarbons which contain —CH2-units, —CHF-units, —CF2-units, —CF3-units, —CHCl-units, —C(Cl)2-units, —C(Cl)3-units, or mixtures thereof, or a cyclic, linear or branched flowable organopolysiloxane, and
- wherein (ii) said hydrophobicizing compound or said mixture of said compounds is present in encapsulated form.
Dependencies are inferred from the claim text.