Laminate including an adhesive-coated substrate and a removable

Details Laminate including an adhesive-coated substrate and a removable Laminate including an adhesive-coated substrate and a removable

1983-10-12

1985-06-18

Thibodeau, Paul J.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428 40, 428138, B32B 310, B32B 300

Patent

active

045240957

ABSTRACT:
The present invention is related to a flat laminate part consisting of a substrate layer and a cover layer the adhesive compounding between said substrate layer and said cover layer being such that both layers are securely held together, but a pull-off of said cover layer from said substrate layer is readily possible by hand or mechanically, said flat laminate part having additionally an auxiliary pull-off means to so pull-off said cover layer or parts of said cover layer by hand or mechanically along preset cuts or, respectively, preset breaking lines in said cover layer, wherein said preset cuts or preset breaking lines in said cover layer are positioned and formed such that there is at least one part of the cover layer which can be grasped per each part of said cover layer to be pulled off, said grasp part is, getting exposed by bending the flat laminate part getting exposed by bending the flat laminate part to form a concave curvature of the surface of said cover layer opposite to the surface of said cover layer adhearing to said substrate layer and that the two points of attack of the force producing such bending of the flat laiminate part are distributed over the surface of the flat laminate part such that the hand produced or mechanical pull-off forces acting substantially vertically to the laminate result in a peeling off of said grasp part of said cover layer.

REFERENCES:
patent: 3230649 (1966-01-01), Karn
patent: 3639500 (1972-02-01), Muny et al.
patent: 3690999 (1972-09-01), Setzer
patent: 3764447 (1973-10-01), Duff
patent: 3987569 (1976-10-01), Chase
patent: 4397261 (1983-08-01), Jones

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