Radio frequency weldable polyolefin film and process for production
OwnerJohn Michael Morrowinventor
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Abstract
The present invention provides inexpensive polyolefin films with a built in adhesive for covering stationary products wherein the polyolefin films can be welded through the adhesive using radio frequency resulting in a stationery product that provides improved hinge durability, low temperature crack resistance and the elimination of image transfer. Also provided are methods of manufacture of the films and a method for the welding of the films around a rigid support material such as chipboard using a radio frequency signal.
Claims29
A film comprising a thin gauge polyolefin layer manufactured using an encapsulating material component and a hot melt adhesive layer manufactured using an encapsulating material component which film can be radio frequency welded through the adhesive.
Dependencies are inferred from the claim text.