# US 2014/0196390 A1 · Fireproof bulkhead of a highly porous structure with intumescent coating and method for its production > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196390 A1 - Document ID: US20140196390A1 - Status: Published application - Kind: A1 - Application number: 14/163,673 - Filed: 2014-01-24 - Published: 2014-07-17 - Earliest claimed: 2006-09-06 - Assignees: Airbus Operations GmbH - Applicants: Airbus Operations GmbH - Inventors: Berend SCHOKE - Web page: https://patentgrep.com/patent/US20140196390A1 ## CPC - B05D 1/18: performed by dipping - A62C 2/065: {having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent} - A62C 3/08: in aircraft {(A62C3/0207 takes precedence)} - B05D 1/02: performed by spraying - B29C 41/02: for making articles of definite length, i.e. discrete articles - B64C 1/10: Bulkheads - B64D 45/00: Aircraft indicators or protectors not otherwise provided for - B64G 1/52: Protection, safety or emergency devices; Survival aids - C09K 21/02: Inorganic materials - Y10T 428/249953: Composite having voids in a component [e.g., porous, cellular, etc.] - Y10T 428/249969: Of silicon-containing material [e.g., glass, etc.] - Y10T 428/24997: Of metal-containing material - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B64C: AEROPLANES; HELICOPTERS - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B64G: COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention provides a fireproof bulkhead, having a highly porous structure with an intumescent coating, the highly porous structure being formed as a reticulated foam or as a highly porous pimple or nub structure. ## Claims ### Claim 1 A fireproof bulkhead comprising a highly porous structure with an intumescent coating, the highly porous structure being formed as a highly porous pimple or nub structure, and the coating being applied to an inner surface of cell walls of the highly porous structure, wherein the highly porous structure has a high level of permeability to gases, and wherein the highly porous pimple or nub structure is produced by forming over a template. ### Claim 2 (depends on 1) The fireproof bulkhead according to claim 1, wherein the highly porous structure is formed as a highly porous pimple or nub structure and the highly porous pimple or nub structure comprises at least one of a woven and a laid fabric of fibers. ### Claim 3 (depends on 2) The fireproof bulkhead according to claim 2, wherein the fibers are at least one of glass fibers and polyester fibers. ### Claim 4 (depends on 3) The fireproof bulkhead according to claim 3, wherein the fibers are quartz glass fibers. ### Claim 5 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating is an intumescent lacquer. ### Claim 6 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating is resistant to hydrolysis. ### Claim 7 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating exhibits its intumescent effect at a temperature above 200° C. ### Claim 8 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating exhibits its intumescent effect at a temperature above 400° C. ### Claim 9 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating exhibits its intumescent effect at a temperature above 600° C. ### Claim 10 (depends on 1) Aircraft or spacecraft with a fireproof bulkhead according to claim 1. ### Claim 11 (depends on 10) The aircraft or spacecraft with a fireproof bulkhead according to claim 10, wherein the fireproof bulkhead is arranged to the sides of a hold of an aircraft or spacecraft, in order to fill the cavity between the hold and the fuselage of the aircraft or spacecraft. ### Claim 12 (depends on 1) A method for producing a fireproof bulkhead according to claim 1 comprising: providing a highly porous structure, the highly porous structure being formed as a highly porous pimple or nub structure; and coating the highly porous structure with an intumescent material, wherein the highly porous pimple or nub structure is produced by forming over a template. ### Claim 13 (depends on 12) The method for producing a fireproof bulkhead according to claim 12, wherein the coating is performed by spraying or dip coating. ### Claim 14 (depends on 1) The fireproof bulkhead according to claim 1, wherein the highly porous structure is formed as a highly porous pimple or nub structure and wherein two layers of a pimple or nub structure are placed one inside the other in an opposing fashion. ### Claim 15 (depends on 1) The fireproof bulkhead according to claim 1, wherein the intumescent coating fills the highly porous structure completely when thermal foam is produced.