C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
40/1, 117/26
C09J 7/02 (2006.01) G09F 3/02 (2006.01) G09F 3/03 (2006.01)
Patent
CA 2330317
A tamper-indicating article comprises (a) a pressure-sensitive adhesive film or pressure-sensitive adhesive-coated tape that can be removed, without exhibiting cohesive failure, from a substrate surface (e.g., an automobile windshield) by stretching the film or tape; and (b) at least one damageable layer that shows cohesive or intralayer failure when an attempt is made to remove the article from the substrate surface. The article is especially useful for application to valuable, non-disposable substrates and can be removed therefrom without substrate damage.
Un article formant sceau de sécurité est constitué (a) d'une couche d'adhésif sensible à la pression ou d'une bande revêtue d'adhésif sensible à la pression, que l'on peut enlever par traction, sans rupture cohésive, d'une surface de substrat (ex. pare-brise d'un véhicule); et (b) d'au moins une couche endommageable qui présente une rupture cohésive ou intracouche lorsque l'on essaie d'enlever l'article de la surface de substrat. Ledit article est particulièrement utile pour l'application sur des substrats de valeur, non jetables, et peut être enlevé de ces derniers sans que cela les endommage.
Jung Dieter
Ludwig Pauline E.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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