Chemical and biological thermal ensemble and composite fabric

Patent metadata

Field	Value
Publication number	US-11219785-B1
Application number	US-201815991140-A
Country	US
Kind code	B1
Filing date	May 29, 2018
Priority date	May 30, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

The disclosed subject matter relates to chemical and biological protective garments and ensembles (i.e., two-part garments that when worn together cover most of the human body) and composite fabrics used therein. The composite fabrics include embodiments having a fabric cover layer combined with a vapor protective layer.

First claim

The invention claimed is:

1. A protective garment including a jacket portion and a pant portion each comprising:
at least two first portions comprising a non-stretch composite fabric, including:
a. a first fabric cover layer comprising a woven fabric material;
b. a first vapor protective layer;
c. a first aerosol protective layer comprising ePTFE; and
d. a first comfort layer
wherein adjacent layers are laminated to one another to eliminate or substantially eliminate air gaps therebetween; and
at least one second portion interposed between the first portions comprising stretch composite fabric for ease in movement by a wearer and consisting of:
a. a second fabric cover layer comprising a knit material;
b. a second vapor protective layer;
c a second aerosol protective layer consisting of nanofibers composed of at least one of polyurethane, polysulfone, nylon-6, polyvinylidene difluoride and polyether sulfone or of microfibers including polypropylene; and
d. a second comfort layer;
wherein adjacent layers are laminated to one another to eliminate or substantially eliminate air gaps therebetween.

2. The protective garment according to claim 1 , wherein the first and second fabric cover layers includes a liquid repellant coating.

3. The protective garment according to claim 1 , wherein the first and second vapor protective layers comprise either a sorptive material or a semi-permeable membrane.

4. The protective garment according to claim 1 , further comprising a plurality of first portions and second portions wherein each second portion being located generally about and generally covering a portion of a user's torso when the protective garment is worn by the user.

5. The protective garment according to claim 1 wherein the comfort layer comprises cotton.

Assignees

• Us Gov Sec Army

Inventors

• Pomerantz Natalie L
• Tew Stephanie M

Classifications

• B32B2262/12

  Conjugate fibres, e.g. core/sheath or side-by-side · CPC title

• B32B5/026

  Knitted fabric · CPC title

• B32B2262/062

  Cellulose fibres, e.g. cotton · CPC title

• B32B2262/0276

  Polyester fibres · CPC title

• B32B2262/02

  Synthetic macromolecular fibres · CPC title