Flame retardant foam material
AssigneeMinister of National Defence of Her Majesty's Canadian Government
InventorsJames A. Wheat, Rolland P. Fuoco, J. Kimberley Dix
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Abstract
A fire-retardant air and water vapor permeable foam material resistant to passage therethrough of noxious chemicals in liquid or vapor form is described. The foam material is typically an open-cell polyurethane foam including a particulate adsorbent, organic binder and a solid water-insoluble fire-retardant dispersed in the foam. The foam material is bonded on at least one side to an air and water vapor permeable fabric to form a fire-retardant laminate material suitable for the manufacture of various protective garments.
Claims19
A fire-retardant air and water vapour permeable foam material resistant to passage therethrough of noxious chemicals in liquid or vapour form, consisting of
- a flexible open-cell polyester-type polyurethane foam;
- and impregnated in said foam, an aqueous dispersion of
- ______________________________________ finely divided activated carbon 100 finely divided decabromodiphenyl oxide 48 an acrylic latex binder 25 an ammoniated polymer of tetrakis 6.9 (hydroxymethyl) phosphonium chloride water-soluble partially esterified 3 and neutralized styrene-maleic anhydride polymer carboxymethyl cellulose 1 ______________________________________
- wherein the proportions of ingredients are expressed in parts per 100 parts of activated carbon.
A fire-retardant air and water permeable foam material resistant to passage therethrough of noxious chemicals in liquid or vapor form consisting of:
- a flexible open-cell foam and, impregnated in said foam, an aqueous dispersion of:
- ______________________________________ finely divided activated carbon 100 decabromodiphenyl oxide as a solid 10 to 45 fire-retardant an after-glow suppressant 5 to 20 a water-insoluble organic binder for 15 to 30 bonding said particles in said foam ______________________________________
- wherein the proportions of ingredients are expressed in parts per 100 parts of activated carbon.
A fire-retardant air and water permeable foam material resistant to passage therethrough of noxious chemicals in liquid or vapor form consisting of:
- a flexible open-cell polyurethane foam and, impregnated in said foam, an aqueous dispersion of:
- ______________________________________ finely divided activated carbon 100 decabromodiphenyl oxide as a solid 10 to 45 fire-retardant an ammoniated polymer of tetrakis 5 to 20 (hydroxymethyl) phosphonium chloride as an after-glow suppressant a water-insoluble organic binder for 15 to 30 bonding said particles in said foam ______________________________________
- wherein the proportions of ingredients are expressed in parts per 100 parts of activated carbon.
Dependencies are inferred from the claim text.