Pressure-sensitive adhesive tape having a substantially...

Details Pressure-sensitive adhesive tape having a substantially... Pressure-sensitive adhesive tape having a substantially...

B - Operations, Transporting

05

D

117/30

B05D 5/10 (2006.01) C09J 7/00 (2006.01) C09J 7/02 (2006.01) C09J 133/06 (2006.01) C09J 201/08 (2006.01)

Patent

CA 1276842

40698 CAN lA Abstract of the Disclosure A pressure-sensitive adhesive layer is crosslinked between carboxyl groups along one surface by polyvalent cations, thus making that surface substantially tack-free while leaving at least one broad surface of the layer tacky and pressure-sensitive. When a broad surface of the adhesive layer is thus made completely tack-free, the adhesive layer can be wound upon itself in roll form without a backing for convenient storage and shipment. Preferably a low-adhesion backsize coating covers the broad tack-free surface to insure that the adhesive layer can be unwound after prolonged storage without delaminating.

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