Protective clothing material
AssigneeMembrane Technology and Research, Inc.
InventorsAmulya L. Athayde, Richard W. Baker
Life of this patent
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Abstract
A protective material having a membrane layer and a sorbent layer. The membrane is a thin-film composite membrane permeable to water vapor but relatively impermeable to organic vapors. The sorbent layer includes activated carbon or other sorbent or reactive material, and captures traces of organic vapor that permeate the membrane layer. The material is particularly useful in intermediate-level protective clothing.
Claims25
A protective material, comprising a laminate of:
- a fabric layer having a skin proximal side and a skin distal side;
- a sorbent layer, comprising a mixture of a sorbent material in a polymeric binder material;
- and
- a thin-film composite membrane layer, comprising a microporous support membrane coated with an ultrathin permselective membrane.
A method of rendering a fabric impermeable to organic agents, comprising:
- coating the fabric with a sorbent layer, comprising a mixture of a sorbent material in a polymeric binder material;
- and
- coating the fabric with a thin-film composite membrane, comprising a microporous support membrane and an ultrathin permselective membrane.
A method of protecting a person from toxic organic agents, comprising clothing said person in at least one garment fabricated from a protective material comprising:
- a fabric layer, coated with;
- a sorbent layer, comprising a mixture of a sorbent material in a polymeric binder material;
- and further coated with;
- a thin-film composite membrane layer, comprising a microporous support membrane coated with an ultrathin permselective membrane.
Dependencies are inferred from the claim text.