Vent filter and method for manufacturing the same

Details Vent filter and method for manufacturing the same Vent filter and method for manufacturing the same

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B01D 39/16 (2006.01) B01D 46/54 (2006.01) B01D 53/22 (2006.01) B01D 71/36 (2006.01) C08J 9/36 (2006.01)

Patent

CA 2728275

An object is to provide a vent filter in which a vent film is less likely to be broken when cut and a measure to shrinkage is taken while the characteristics and functions both inherent to the vent film are being kept. The vent filter includes a frame-shaped adhesive layer 2 and a vent film 3 attached to the adhesive layer 2, wherein an outer peripheral portion of the vent film 3 is positioned at an outer side than an outer peripheral portion of the frame-shaped adhesive layer 2.

L'invention porte sur un filtre d'évacuation, dans lequel un film d'évacuation est moins susceptible de se rompre lorsqu'il est coupé, et dans lequel une mesure est prise vis-à-vis du rétrécissement, les propriétés de conservations ou fonctions caractéristiques au film d'évacuation étant maintenues. Le filtre d'évacuation, qui comprend une couche adhésive en forme de cadre (2) et le film d'évacuation (3) amené à adhérer à la couche adhésive (2), est configuré de telle sorte que la périphérie du film d'évacuation (3) est à l'extérieur de celle de la couche adhésive en forme de cadre (2).

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