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Mica-coated electrically insulating and fire-proofing adhesive tape especially suitable for electrical or optical fiber cable

  • US 4,769,276 A
  • Filed: 12/15/1986
  • Issued: 09/06/1988
  • Est. Priority Date: 12/13/1985
  • Status: Expired due to Fees
First Claim
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1. An electrically insulating and fire-proof adhesive tape especially for use with electrical cable and optical fiber cable, the tape comprising:

  • a first layer having an inner side and an outer side, the first layer including at least one sheet of mica paper;

    a backing layer disposed on the outer side of the first layer, the backing layer including at least one reinforcing sheet;

    a binder bonding the backing layer to the outer side of the first layer, the binder comprising a polysiloxane resin containing a hardening catalyst additive; and

    an adhesive layer bonded to the inner side of the first layer, the adhesive layer comprising an exposed pressure-sensitive adhesive coating of a hardenable silicone resin without a hardening additive, such that the coating is capable of retaining pressure-sensitive adhesivity over a long time.

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