A vapor barrier for flammable liquid storage tanks provides a gas impermeable layer for covering the surface of a flammable liquid stored within a conventional flammable liquid storage tank, a tanker, a vessel, or the like. The vapor barrier is formed from a plurality of spherical buoyant members. E
A vapor barrier for flammable liquid storage tanks provides a gas impermeable layer for covering the surface of a flammable liquid stored within a conventional flammable liquid storage tank, a tanker, a vessel, or the like. The vapor barrier is formed from a plurality of spherical buoyant members. Each spherical buoyant member has a heat-resistant core or shell, a heat-reactive intumescent or flame retardant layer formed on an outer surface of the heat-resistant core, an antistatic and oil-phobic layer formed on an outer surface of the heat-reactive intumescent layer, and an adhesive layer on an outer surface of the heat-reactive intumescent layer. The vapor barrier may further be used with liquid storage tanks in which separation between the liquid and vapor phases is beneficial to prevent oxidation or other undesirable reactions.
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1. A vapor barrier for flamable liquid storage tanks, comprising a plurality of buoyant members, at least some of the plurality of buoyant members having a heat-resistant core, a median layer formed on an outer surface of the heat-resistant core, and an antistatic layer formed on an outer surface of
1. A vapor barrier for flamable liquid storage tanks, comprising a plurality of buoyant members, at least some of the plurality of buoyant members having a heat-resistant core, a median layer formed on an outer surface of the heat-resistant core, and an antistatic layer formed on an outer surface of the median layer. 2. The vapor barrier for flammable liquid storage tanks as recited in claim 1, wherein said median layer is formed from a heat-reactive intumescent material. 3. The vapor barrier for flammable liquid storage tanks as recited in claim 1. wherein said median layer is formed from a flame retardant material. 4. The vapor barrier for flammable liquid storage tanks as recited in claim 1, wherein at least some of the plurality of buoyant members are configured for adhering to other buoyant members. 5. The vapor barrier for flammable liquid storage tanks as recited in claim 4, wherein at least some of the plurality of buoyant members have a diameter in a range of approximately 1/16 of an inch to approximately four inches. 6. The vapor barrier for flammable liquid storage tanks as recited in claim 4, wherein at least some of the plurality of buoyant members have a specific gravity in a range of approximately 0.05 to approximately 0.5. 7. The vapor barrier for flammable liquid storage tanks as recited in claim 4, wherein said antistatic layer is oil-phobic. 8. The vapor barrier for flammable liquid storage tanks as recited in claim 4, wherein said antistatic layer is oil-philic. 9. The vapor barrier for flammable liquid storage tanks as recited in claim 4, wherein at least some of the plurality of buoyant members have an adhesive outer layer configured for adhering to other buoyant numbers. 10. The vapor barrier for flammable liquid storage tanks as recited in claim 9, wherein the adhesive outer layer includes an epoxy resin. 11. The vapor barrier for flammable liquid storage tanks as recited in claim 9, further comprising a protective layer on at least one surface of the vapor barrier. 12. A flammable liquid storage tank having, a vapor barrier, comprising: a hollow housing having an open upper end, the housing defining a storage tank configured for receiving, a volume of flammable liquid therein; anda vapor barrier having a plurality of buoyant members, at least some of the buoyant members having a heat-resistant core, a median layer formed on an outer surface of the heat-resistant core, and an antistatic layer formed on an outer surface of the median layer, the vapor barrier floating on and forming a surface covering the flammable liquid. 13. The flammable liquid storage tank as recited in claim 12, wherein at least some of the plurality of buoyant members are configured for adhering to other buoyant members. 14. The flammable liquid storage tank. as recited in claim 13, wherein said median layer is formed from a heat-reactive intumescent material. 15. The flammable liquid storage tank as recited in claim 13, wherein said median layer is formed from a flame retardant material. 16. The flammable liquid storage tank as recited in claim 13, wherein said plurality of buoyant members includes a plurality of sets of spherical buoyant members, each of the sets having a uniform, unique buoyant member radius. 17. The flammable liquid storage tank as recited in claim 16, wherein each said spherical buoyant member has a diameter in a range of approximately 1/16 of an inch to about four inches. 18. The flammable liquid storage tank as recited in claim 13, wherein each said buoyant member has a specific gravity in a range of approximately 0.05 to approximately 0.5. 19. The flammable liquid storage tank as recited in claim 13, wherein said antistatic layer is hydrophobic and oil-phobic. 20. The flammable liquid storage tank as recited in claim 13, wherein said antistatic layer is oil-philic. 21. The flammable liquid storage tank as recited in claim 12, wherein at least some of the plurality of buoyant members have an adhesive outer layer configured for adhering to other buoyant members. 22. The flammable liquid storage tank as recited in claim 21, wherein the adhesive outer layer includes an epoxy resin. 23. The flammable liquid storage tank as recited in claim 21, further comprising a protective layer on at least one surface of the vapor barrier. 24. A flammable liquid storage tank having a vapor barrier, comprising: a hollow housing having an open upper end, the housing defining a storage tank adapted for receiving a volume of flammable liquid therein;a floating roof having an upper, open interior region defined therein and a lower surface adapted for floating on a surface of the volume of flammable liquid; anda vapor barrier disposed within the upper, open interior region of the floating roof, the vapor barrier having a plurality of buoyant members, each of the buoyant members having a heat-resistant core, a median layer formed on an outer surface of the heat-resistant core, and an antistatic layer formed on an outer surface of the median layer, the buoyant members configured for adhering one buoyant member to another and floating together as a solid body and forming a surface covering for the flammable liquid. 25. The flammable liquid storage tank having a vapor barrier as recited in claim 24, wherein said median layer is formed from a heat-reactive intumescent material. 26. The flammable liquid storage tank having a vapor barrier as recited in claim 24, wherein said median layer is formed from a flame retardant material. 27. The flammable liquid storage tank having a vapor barrier as recited in claim 24, wherein the buoyant spheres floating together as a solid have a protective outer layer of textile or rubber material.
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이 특허에 인용된 특허 (9)
Basseches Alexandre F., Antistatic flotation body and pontoon containing such body.
Alhamad Shaikh G. M. Y. (P.O. Box 31590 Riyadh ; 11418 SAX) Altikan Sami I. (Riyadh SAX), Composition of matter for stopping fires, explosions and oxidations of materials and build up of electrostatic charges a.
Alhamad Shaikh Ghaleb Mohammad Yassin,SAX, Compositions of matter stopping fires, explosions and oxidations of materials and build up of electrostatic charges.
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