A - Human Necessities – 41 – D
Patent
A - Human Necessities
41
D
A41D 13/00 (2006.01) A41D 13/11 (2006.01) A62B 23/02 (2006.01) B01D 39/16 (2006.01)
Patent
CA 2264606
A face mask including a face-contacting layer (12), an outer cover layer (14), a polymeric microfiber mat (16) disposed between the face-contacting layer and the outer cover layer, and a non-woven fibrous mat disposed between the face- contacting layer and the outer cover layer. The non-woven fibrous mat (18) includes polymeric fibers and a surface energy reducing agent. The face- contacting layer (12), the cover layer (14), the polymeric microfiber mat (16), and the non-woven fibrous mat (18) cooperate with each other to allow gas to pass through the mask while inhibiting the passage of liquid through the mask.
La présente invention concerne un masque facial comportant une couche de contact avec le visage (12), une couche de couverture extérieure (14), un tampon de microfibres polymères (16) placé entre la couche de contact avec le visage et la couche de couverture extérieure, et un tampon fibreux en non-tissé disposé entre la couche de contact avec le visage et la couche de couverture extérieure. Le tampon fibreux en non-tissé (18) contient des fibres polymères et un agent diminuant la tension superficielle. La couche de contact avec le visage (12), la couche de couverture extérieure (14), le tampon de microfibres polymères (16) et le tampon fibreux en non-tissé (18) coopèrent les uns avec les autres pour laisser passer les gaz au travers du masque, tout en interdisant le passage de liquide au travers du masque.
Baumann Nicholas R.
Brandner John M.
Dowdell Shannon L.
Romano Michael D.
Scholz Matthew T.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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