IP Library Granted Patent US 9,963,611
Granted Patent B2
US 9,963,611 · App. 13/319,836 · Granted May 8, 2018

Composition for use in decreasing the transmission of human pathogens

Inventors: Neal G. Stewart (Hong Kong, CN); Francis Chi Nan Lau (Belmont, CA); Tai Wai Kung (Hong Kong, CN); Lok Yuen Lo (Hong Kong, CN); Dacey J. Ryan (Hong Kong, CN); Reid W. Von Borstel (Potomac, MD)
Assignee: Innonix Technologies, Incorporated
C09D129/04A01N59/16A01N59/20A41D13/1107A41D13/1192B32B5/022B32B5/26A41D13/11A62B23/025B32B2255/02B32B2255/26B32B2262/0253B32B2307/7145B32B2437/00B32B2535/00C08K5/0058C08K5/092
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Quick Facts
Patent No.
US 9,963,611
App. No.
13/319,836
Granted
May 8, 2018
Kind
B2
Abstract

A composition for coating a polypropylene-based fabric or polypropylene-based material for use in decreasing the transmission of human pathogens. A device such as a protective face mask made from a polypropylene-based fabric or polypropylene-based material coated with the composition.

Claims (6)

1. A facial mask that decreases the transmission of one or more than one human pathogen by antibacterial, antifungal and antiviral activity, the facial mask comprising a wearable facial mask configured for placement over a mouth and nose, the wearable facial mask having a polypropylene-based material comprising four layers, Layer #1, Layer #2, Layer #3 and Layer #4 oriented from a front surface of the facial mask to a back surface of the facial mask, wherein the back surface of the facial mask is a surface of Layer #4 contacting the face of a wearer, and the front surface of the facial mask opposing to the back surface of the facial mask; wherein Layer #1 is a spunbond nonwoven fabric comprising polypropylene fibers having a density of 45 g/m 2 and having a Layer #1 coating prepared from drying a Layer #1 wet coating formed by coating Layer #1 with a Layer #1 aqueous coating composition comprising 2% by weight of citric acid, 2% by weight of polyvinyl alcohol, and 0.5% by weight of polyoxyethylene (20) sorbitan by the total weight of the Layer #1 aqueous coating composition, Layer #2 is a spunbond nonwoven fabric comprising polypropylene fibers having a density of 45 g/m 2 and having a Layer #2 coating prepared from drying a Layer #2 wet coating formed by coating Layer #2 with a Layer #2 aqueous coating composition comprising 3% by weight of copper acetate and 3% by weight of zinc acetate by the total weight of the Layer #2 aqueous coating composition, Layer #3 is a melt-blown polypropylene fabric comprising polypropylene fibers having a density of 18 g/m 2 , and Layer #4 is a spunbond nonwoven polypropylene fabric comprising polypropylene fibers having a density of 25 g/m 2 .

2. A facial mask for decreasing the transmission of one or more than one human pathogen to and from a human wearer of the facial mask, the facial mask comprising: a) a body comprising a front surface of the body, an opposing back surface of the body, and a perimeter of the body defining a shape of the body, and a central seam, wherein the back surface the body contacting the face of the human wearer and the front surface of the body opposing to the back surface of the body; b) a flap attached to the body at a body-flap junction; the flap comprising a front surface of the flap, an opposing back surface of the flap, and a perimeter of the flap defining a shape of the flap; c) a resilient member attached to the back surface of the flap; d) a deformable strip attached to the body; and e) one or more than one extension attached to the body for securing the facial mask to the head of a wearer; where the perimeter of the body comprises a right lateral edge, a left lateral edge connected to the right lateral edge at a bottom junction of the perimeter, and a top edge connecting the right lateral edge to the left lateral edge; where the perimeter of the flap comprises in continuity, a right vertical side, a right arcuate side, a central curved region, a left arcuate side, a left vertical side, and a base partially forming the body-flap junction and connecting the right vertical side to the left vertical side; where the shape of the flap is an inverted U-shape when looking at the front surface of the body or the back surface of the body with the bottom junction oriented down; where both the body and the flap comprise a material comprising four layers, Layer #1, Layer #2, Layer #3 and Layer #4 oriented from the front surface to the back surface, wherein the back surface is a back surface of Layer #4; and where Layer #1 is a spunbond nonwoven fabric comprising polypropylene fibers having a density of 45 g/m 2 and having a Layer #1 coating prepared from drying a Layer #1 wet coating formed by coating Layer #1 with a Layer #1 aqueous coating composition comprising 2% by weight of citric acid, 2% by weight of polyvinyl alcohol, and 0.5% by weight of polyoxyethylene (20) sorbitan by the total weight of the Layer #1 aqueous coating composition, Layer #2 is a spunbond nonwoven fabric comprising polypropylene fibers having a density of 45 g/m 2 and having a Layer #2 coating prepared from drying a Layer #2 wet coating formed by coating Layer #2 with a Layer #2 aqueous coating composition comprising 3% by weight of copper acetate and 3% by weight zinc acetate by the total weight of the Layer #2 aqueous coating composition, Layer #3 is a melt-blown polypropylene fabric comprising polypropylene fibers having a density of 18 g/m 2 , and Layer #4 is a spunbond nonwoven polypropylene fabric comprising polypropylene fibers having a density of 25 g/m 2 .

3. The facial mask of claim 1 , further comprising one or more than one reactive dye.

4. The facial mask of claim 2 , further comprising one or more than one reactive dye.

5. The facial mask of claim 1 , wherein the Layer #2 aqueous coating composition further comprises 2% by weight of citric acid, 2% by weight of polyvinyl alcohol, and 0.5% by weight of polyoxyethylene (20) sorbitan by the total weight of the Layer #2 aqueous coating composition.

6. The facial mask of claim 2 , wherein the Layer #2 aqueous coating composition further comprises 2% by weight of citric acid, 2% by weight of polyvinyl alcohol, and 0.5% by weight of polyoxyethylene (20) sorbitan by the total weight of the Layer #2 aqueous coating composition.

Assignments (2)
CHANGE OF NAME Recorded May 22, 2015
From: IONIXX TECHNOLOGIES, INCORPORATED
To: INNONIX TECHNOLOGIES, INCORPORATED
Reel/Frame 035759/0759 →
CHANGE OF NAME Recorded May 22, 2015
From: FILLIGENT LIMITED
To: IONIXX TECHNOLOGIES, INCORPORATED
Reel/Frame 035759/0945 →
Priority Claims (1)
WO PCT/US2009/045621 · May 29, 2009 · international
Continuity (2)
Provisional Application 61298194 · Jan 25, 2010
Related Publication 20120060258A1 · Mar 15, 2012