Disposable Protective Garment And Barrier film
A disposable protective garment for positioning over a wearer's head is provided for use in airplanes, busses, trains, other mass transit and other single-use applications. The disposable protective garment includes a hood formed of tubular blown film that has an at least partly closed top that rests on a wearer's head and an open bottom that rests on a wearer's shoulders. A mask can be integrated into the hood by forming a plurality of apertures in the hood and placing a polymer fabric that acts as a filter over the plurality of apertures. The hood may alternatively be combined with a crown or air filter material positioned over its top; a tubular filter equipped with an electric fan that draws air from above, filters it and directs the clean air downward across the wearer's face; and/or headgear. A barrier film suitable for use in the protective garment as well as other barrier applications is also provided.
1 - 30 . (canceled)
31 . A transparent multilayer coextruded film, comprising:
first and second outer layers formed using a transparent polyester or polyester copolymer;
a first inner layer formed using a low density polyethylene or linear low density polyethylene having low crystallinity; and
first and second adhesive layers between each of the two outer layers and the first inner layer;
wherein the film has a light transmission of at least about 80%.
32 . The transparent multilayer film of claim 31 , wherein the film has a light transmission of at least about 84%.
33 . The transparent multilayer film of claim 31 , wherein the film has a light transmission of at least about 88%.
34 . The transparent multilayer film of claim 31 , wherein at least one of the first and second outer layers comprises polyethylene terephthalate glycol.
35 . The transparent multilayer film of claim 31 , wherein both of the first and second outer layers comprise polyethylene terephthalate glycol.
36 . The transparent multilayer film of claim 31 , wherein the first inner layer has a crystallinity of about 35% to about 45%.
37 . The transparent multilayer film of claim 31 , wherein the first inner layer has a crystallinity of about 35% to about 40%.
38 . The transparent multilayer film of claim 31 , wherein the first and second adhesive layers comprise ethylene ethyl acrylate.
39 . The transparent multilayer coextruded film of claim 31 , further comprising a second inner layer formed using an ethylene-vinyl alcohol copolymer.
40 . The transparent multilayer film of claim 39 , further comprising a third adhesive layer adjacent to the second inner layer.
41 . The transparent multilayer film of claim 39 , wherein the third adhesive layer comprises ethylene ethyl acrylate.
42 . The transparent multilayer film of claim 41 , wherein the third adhesive layer further comprises an anhydride-modified polyolefin blended with the ethylene ethyl acrylate.
43 . The transparent multilayer film of claim 42 , wherein one of the first and second adhesive layers is adjacent to the second inner layer and further comprises an anhydride-modified polyolefin blended with the ethylene ethyl acrylate.
44 . The transparent multilayer film of claim 31 , wherein the film comprises the following layer structure: PETG/adhesive/EVOH/adhesive/PE/EEA/PETG, where PETG is polyethylene terephthalate glycol, EVOH is ethylene vinyl alcohol, PE is low density polyethylene or linear low density polyethylene, and EEA is ethylene ethyl acrylate.
45 . The transparent multilayer film of claim 31 , wherein the film comprises the following layer structure: PETG/EEA/PE/adhesive/EVOH/adhesive/PETG, where PETG is polyethylene terephthalate glycol, EVOH is ethylene vinyl alcohol, PE is low density polyethylene or linear low density polyethylene, and EEA is ethylene ethyl acrylate.
46 . The transparent multilayer film of claim 31 , wherein the film comprises the following layer structure: PETG/adhesive/EVOH/adhesive/PE/adhesive/PETG, where PETG is polyethylene terephthalate glycol, EVOH is ethylene vinyl alcohol, PE is low density polyethylene or linear low density polyethylene, and EEA is ethylene ethyl acrylate.