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US 4,045,607 AGranted
Cable shielding tape
AssigneeThe Dow Chemical Company
InventorsCharles C. Swearingen, Nicholas Sheptak
Life of this patent
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AssigneeThe Dow Chemical Company
InventorsCharles C. Swearingen, Nicholas Sheptak
Estimating the term…
A cable shielding tape comprising a metallic strip such as aluminum and a tightly adhering layer of an adhesive copolymer of an .alpha.-olefin such as ethylene and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid such as acrylic acid is provided with zones of reduced adhesion between the metallic strip and the copolymer layer by means of a latent adhesive such as poly(vinyl acetate) or by means of a fugitive release agent such as oleic acid disposed in prescribed areas between the adhesive copolymer layer and the metallic strip. The latent adhesive material has delayed tack properties such that its adhesion to the metallic strip can be increased by the application of heat. The fugitive release agent is of a type which will become absorbed by the adhesive copolymer such that the adhesion of the adhesive copolymer to the metallic strip can be increased by the application of heat.
A cable shielding tape comprising a metallic strip, a layer of an adhesive compolymer of an .alpha.-olefin and and .alpha.,.beta.-ethylenically unsaturated carboxylic acid in mating relationship with at least one surface of said strip, and a fugitive release agent disposed between said metallic strip and said layer of the adhesive copolymer which defines at least one zone of reduced adhesion between said layer of the adhesive copolymer and said metallic strip, the fugitive release agent being of a type which will become absorbed by the adhesive copolymer such that the adhesion of said layer of the adhesive copolymer to said metallic strip can be increased by the application of heat.
Dependencies are inferred from the claim text.