Facemasks containing an anti-fog / anti-glare composition
First Claim
1. A facemask comprising a substrate, wherein a coating is present on at least one surface of said substrate, the coating having a thickness of from about 50 to about 250 nanometers and consisting essentially of organic polymers, wherein the organic polymers include a cellulosic ether and constitute at least about 90 wt. % of said coating, and the substrate forms a visor or shield of the facemask.
11 Assignments
0 Petitions
Accused Products
Abstract
A coating composition that is incorporated into a facemask to reduce fogging and glare is provided. For example, in one embodiment, the facemask contains a shield or visor formed from a transparent substrate having at least one surface applied with the coating composition of the present invention. The present inventors have unexpectedly discovered that one or more water-soluble organic polymers, such as ethyl hydroxyethylcellulose, may be utilized as a principal component of the coating composition to reduce fogging and glare in a simple, yet effective manner.
189 Citations
35 Claims
- 1. A facemask comprising a substrate, wherein a coating is present on at least one surface of said substrate, the coating having a thickness of from about 50 to about 250 nanometers and consisting essentially of organic polymers, wherein the organic polymers include a cellulosic ether and constitute at least about 90 wt. % of said coating, and the substrate forms a visor or shield of the facemask.
- 21. A facemask comprising a transparent visor or shield, wherein a coating is present on at least one surface of said transparent visor or shield that consists essentially of one or more cellulosic ethers, wherein the one or more cellulosic ethers constitute at least about 90 wt. % of said coating, wherein said coating has a thickness of from about 50 to about 250 nanometers.
-
26. A method for forming a facemask that comprises a transparent substrate, said method comprising:
-
applying an aqueous composition to at least one surface of the transparent substrate, said aqueous composition including a mixture of water and one or more water-soluble organic polymers selected from the group consisting of cellulosic ethers; drying said aqueous composition to form a coating on said transparent substrate, wherein said coating has a thickness of from about 50 to about 260 nanometers and consists essentially of one or more cellulosic ethers, wherein the one or more cellulosic ethers constitute at least about 90 wt. % of said coating, and the substrate forms a visor or shield of the facemask. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
-
Specification