Do Masks With Antiviral Coating Offer Extra Safety?
US- A-6, 551, 608 discloses a porous thermoplastic materials substrate and an antiviral substance made by sintering a minimum of one antiviral agent with the thermoplastic substance. US-A- 7,029,516 discloses a filter system for eradicating particles from a fluid comprising a non- woven polypropylene base upon which is deposited an acidic polymer similar to polyacrylic acid. US-A-2004/ discloses a filter material comprising a network of fibres with an acidic substance deposited thereon, which may be an acrylic polymer. US-A- 2005/ discloses a filter block which can be handled with numerous anti viral polymers, principally cationic polymers. The polyester material used was a proprietary nonwoven fabric made up one hundred% of polyester fibres, designated by its provider a hundred % polyester gsm NT MSQ 180G/M2 BLANC LZE MM non woven fabric.
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Anti Viral Breathe Higher Mask
Alternatively the substrate may be within the type of an open-cell foam, e.g. a polyurethane foam as can be used for air filters, for instance in nasal air plugs. The filter material described herein could also be made in various ways, by which the air- permeable substrate is mixed with the acidic polymer. Other appropriate acidic polymers are believed to incorporate polyvinyl phosphonic acids. Acidic polymers which have been found useful for the purposes herein have been found to have molecular weights within the range 30,000 to 2,000,000 but molecular weight does not appear to be important, and this may be merely an exemplary range.
The filter 10 is of generally typical construction comprising a pad which may be attached over the nostril and mouth of a user by a conventional strap . The pad comprises an outer layer of the filter material of the invention stitched to an inner polyester fibre pad , the outer layer being ready to intercept a stream of inhaled or exhaled respiration air. Such a ensuing liquid composition is herein termed a “loading resolution”.
Disposable Anti Viral Face Masks For H1n1, Mrsa, Swine Flu, For Clinic
An instance of a metal salt of this sort is zinc chloride. As used herein the term “acidic polymer” includes a polymer having acidic groups along its spine, e.g. as aspect groups. Suitable acidic teams are carboxylic acid groups. The acidic polymer could also be cross-linked or linear.
The coating transforms the bottom materials into an anti-viral, multi-useful protective snood. So gentle and breathable you won’t believe its virus stopping power. Proven to entice and kill airborne enveloped influenza viruses. A filter materials based on claim 28 whereby the acidic polymer is predicated on maleic acid moieties which embody -[-CH.
