Activated adhesive system
OwnerAdele C. Shipston, Joseph W. Langen +1inventors
InventorsAdele C. Shipston, Joseph W. Langen, Nancy G. Mitchell
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Abstract
A method of increasing the tack of a pressure sensitive adhesive by exposing a polymeric pressure sensitive adhesive to an activating treatment, activatable articles containing such an adhesive and adhesive compositions resulting from such an activating treatment. The activatable, polymeric, pressure sensitive adhesive is preferably a water based adhesive prepared by free radical polymerization of acrylic acid, methacrylic acid, acrylate, or methacrylate monomers having from 1 to about 12 carbon atoms. The activating treatment is preferably corona charging or corona charging in combination with uv light.
Claims13
A method for producing a pressure sensitive adhesive comprising:
- coating a substrate over at least a portion of at least one side thereof with a non-tacky polymeric composition capable of being activated upon exposure to an activating treatment;
- and
- exposing the coated substrate to an activating treatment comprising ultraviolet light, corona charging, ultrasound or combinations thereof to activate the polymeric composition, thereby producing a tacky pressure sensitive adhesive.
Dependencies are inferred from the claim text.