Mica-coated electrically insulating and fire-proofing adhesive tape especially suitable for electrical or optical fiber cable
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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Abstract
The mica-coated adhesive tape comprises at least one sheet of mica paper and at least one backing sheet bonded to the mica paper sheet by means of a binder, the face of the mica paper sheet away from the backing sheet being coated with an adhesive. The adhesive includes an outer coating of a silicone resin.
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Citations
12 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification