Writable adhesive tape
AssigneeBoston S.p.A.
InventorsFulvio Flutti, Franco Ghezzi
Life of this patent
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Abstract
A writable adhesive tape is disclosed, which comprises a polyolefine substrate, having on one side an adhesive layer and on the opposite side a writable anti-adhesive layer. The writable anti-adhesive layer comprises 25% to 55% by weight of a chlorinated polyolefine, 20% to 50% by weight of a polyaldehyde resin together with 5% to 20% by weight of an anti-adhesive agent, and 5% to 25% by weight of a matting charge.
Claims16
A self-sticking tape, comprising a flexible substrate, a self-sticking coating on one side thereof, and an antiadhesive writable coating on the opposite side, comprising at least one film forming resin along with at least one anti-adhesive agent and at least one matting agent, wherein said substrate is selected from oriented and non-oriented films of alpha-olefine polymers and copolymers, having at least the side bearing said anti-adhesive coating free from any additional priming layer and adhesion promoting surface treatment, and said anti-adhesive writable coating comprises 25% to 55% by weight of at least one chlorinated polyolefine and 20% to 50% by weight of a polyaldehyde resin as said film-forming resin and as substrate adhesive promoter resin.
Dependencies are inferred from the claim text.