Face Masks With Anti
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 removing particles from a fluid comprising a non- woven polypropylene base upon which is deposited an acidic polymer such as 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 treated with various anti viral polymers, principally cationic polymers. The polyester materials used was a proprietary nonwoven cloth 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.
Water repellent technology– balances humidity and temperature ranges while repelling droplets containing viruses and micro organism. A mask in accordance with claim three whereby the air-permeable substrate comprises a non- woven polypropylene. A mask according to declare 1 whereby the air-permeable substrate includes a fibrous substrate. Further experiments have been performed using a polyester substrate materials.
Anti Viral Breathe Better Mask
Alternatively the substrate could also be within the form of an open-cell foam, e.g. a polyurethane foam as is also used for air filters, for instance in nasal air plugs. The filter material described herein could also be made in varied methods, by which the air- permeable substrate is mixed with the acidic polymer. Other suitable acidic polymers are believed to include polyvinyl phosphonic acids. Acidic polymers which have been found useful for the purposes herein have been found to have molecular weights within the vary 30,000 to 2,000,000 however molecular weight doesn’t seem like crucial, and this may be merely an exemplary range.
The filter 10 is of usually standard construction comprising a pad which may be connected over the nose and mouth of a user by a conventional strap . The pad contains an outer layer of the filter material of the invention stitched to an inner polyester fibre pad , the outer layer being in a position to intercept a stream of inhaled or exhaled breathing air. Such a ensuing liquid composition is herein termed a “loading solution”.
Virus Might By No Means Go Away However May Become Gentle Annoyance: Specialists
An example of a metal salt of this sort is zinc chloride. As used herein the time period “acidic polymer” features a polymer having acidic groups along its spine, e.g. as facet teams. Suitable acidic teams are carboxylic acid groups. The acidic polymer could also be cross-linked or linear.
The coating transforms the base material into an anti-viral, multi-practical protective snood. So mild and breathable you will not consider its virus stopping power. Proven to trap and kill airborne enveloped influenza viruses. A filter materials in accordance with declare 28 wherein the acidic polymer is predicated on maleic acid moieties which embrace -[-CH.