B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 7/12 (2006.01) B05D 5/10 (2006.01) B32B 33/00 (2006.01) C09J 7/02 (2006.01)
Patent
CA 2406693
The invention relates to adhesive articles which provide air egress and methods of their preparation. Air egress is provided by supplying a route, such as areas of no initial adhesion, for air to flow out from under the construction. The invention relates to an adhesive article (10) comprising feedstock (11) having a front and a back surface, a continuous layer of adhesive (12) having an upper and a lower surface, wherein the upper surface of the adhesive layer is adhered to the back surface of the feedstock, and a plurality of spaced-apart non-adhesive material portions (13) contact the lower surface of the adhesive layer which has a Sheffield roughness of at least about 10 and the adhesive article provides air egress. The articles have usefulness as industrial graphics images, decorative coverings, etc.
L'invention concerne des articles adhésifs chassant l'air, ainsi que leurs procédés de préparation. Pour chasser l'air, on pratique un chemin, tel que des zones de non adhésion initiale, permettant à l'air de s'échapper du dessous de la structure. L'invention concerne, en particulier, un article adhésif (10) constitué d'un substrat (11) comportant une surface avant et une surface arrière, d'une couche continue d'adhésif (12) présentant une surface supérieure et une surface inférieure, la surface supérieure étant collée sur la surface arrière du substrat, et d'une pluralité de parties (13) de matériau non adhésif espacées au contact de la surface inférieure de la couche adhésive, qui a une rugosité Sheffield d'au moins 10 environ, ce qui fait que l'article adhésif chasse l'air. Les articles selon l'invention sont utilisés comme images graphiques industrielles, couvertures décoratives, etc..
Hannington Michael
Iyer Pradeep S.
Avery Dennison Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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