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DIELECTRIC, RADIATION-CURABLE COATING COMPOSITIONS

  • US 20020004537A1
  • Filed: 05/07/1998
  • Published: 01/10/2002
  • Est. Priority Date: 10/30/1997
  • Status: Active Grant
First Claim
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1. An insulating coating for an electrical conductor having a cured coating of about 2.5 μ

  • m to about 500 μ

    m thickness which coating has a dielectric dissipation factor (60 Hz, 24°

    C.) of lower than about 0.05, said insulating coating being a radiation-cured coating formulated from a coating composition comprising;

    (A) about 15 wt. % to about 80 wt. % of at least one UV or radiation-curable acrylate oligomer;

    (B) about 3 wt. % to about 20 wt. % of at least one vinyl reactive diluent or ene reactive diluent;

    (C) about 10 wt. % to about 80 wt. % of at least one acrylate monomer diluent;

    (D) about 0.5 wt. % to about 10 wt. % of at least one thiol compound, and (E) optionally at least one additional additive, wherein the pre-mixture ingredients correspond to the identity of radiation-curable composition components prior to mixture with other ingredients.

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