# US 9,751,289 B2 · Insulation articles including corrosion inhibitors and methods of producing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,289 B2 - Document ID: US9751289B2 - Status: Granted - Kind: B2 - Application number: 14/537,179 - Filed: 2014-11-10 - Published: 2016-05-12 - Granted: 2017-09-05 - Earliest claimed: 2014-11-10 - Assignees: Knauf Insulation, Inc.; Knauf Insulation SPRL - Applicants: Knauf Insulation, Inc.; Knauf Insulation SPRL - Inventors: Gert Rainer Mueller; Chistopher George Hardy; Michael Dean Hoops; Walter Alexander Johnson - Web page: https://patentgrep.com/patent/US9751289B2 ## CPC - B32B 37/18: involving the assembly of discrete sheets or panels only - B32B 5/022: {Non-woven fabric} - B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 15/14: next to a fibrous or filamentary layer - B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)} - B32B 19/041: {of metal} - B32B 19/06: next to a fibrous or filamentary layer - B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers} - B32B 27/36: comprising polyesters - B32B 27/42: comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines - B32B 37/12: characterised by using adhesives - B32B 2037/1276: {water-based adhesive} - B32B 2250/03: 3 layers - B32B 2255/02: on fibrous or filamentary layer - B32B 2255/20: Inorganic coating - B32B 2255/24: Organic non-macromolecular coating - B32B 2260/021: Fibrous or filamentary layer - B32B 2262/0215: Thermoplastic elastomer fibers - B32B 2262/101: Glass fibres - B32B 2262/108: Rockwool fibres - B32B 2262/14: Mixture of at least two fibres made of different materials - B32B 2264/10: Inorganic particles - B32B 2264/104: Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles - B32B 2307/304: Insulating - B32B 2307/752: Corrosion inhibitor - B32B 2311/30: Iron, e.g. steel - B32B 2367/00: Polyesters, e.g. PET, i.e. polyethylene terephthalate - B32B 2386/00: Specific polymers obtained by polycondensation or polyaddition not provided for in a single one of index codes B32B2363/00 - B32B2383/00 - B32B 2419/00: Buildings or parts thereof - B32B 2607/00: Walls, panels - F16L 58/00: Protection of pipes or pipe fittings against corrosion or incrustation (compound tubes F16L9/14) - F16L 59/026: {Mattresses, mats, blankets or the like} - F16L 59/04: Arrangements using dry fillers, e.g. using slag wool - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract Unique insulation articles including corrosion inhibitors and methods of producing the same are disclosed. One exemplary embodiment is an article of manufacture comprising an insulation mat comprising a cured combination of a plurality of randomly oriented fibers and a binder, the insulation mat extending between a first surface and a second surface, a veil attached to the first surface, the veil structured to inhibit physical movement of the cured combination through the veil, a metal sheet attached to the second surface by a water-containing adhesive contacting the metal sheet and the second surface, and a corrosion inhibitor composition deposited on the cured combination of the insulation mat, the corrosion inhibitor composition being effective to modify toward neutral a pH of the cured combination in contact with water from the water-containing adhesive. ## Claims ### Claim 1 An article of manufacture comprising: an insulation mat comprising a cured combination of a plurality of randomly oriented fibers and a binder, the insulation mat extending between a first surface and a second surface; a veil attached to the first surface, the veil structured to inhibit physical movement of the cured combination through the veil; a metal sheet attached to the second surface by a water-containing adhesive contacting the metal sheet and the second surface; and a corrosion inhibitor composition deposited on the cured combination of the insulation mat, the corrosion inhibitor composition being effective to modify toward neutral a pH of the cured combination in contact with water from the water-containing adhesive. ### Claim 2 (depends on 1) The article of manufacture of claim 1 wherein the cured combination has an acidic pH and the corrosion inhibitor composition has an alkaline pH. ### Claim 3 (depends on 2) The article of manufacture of claim 2 wherein the corrosion inhibitor composition comprises a water soluble compound. ### Claim 4 (depends on 3) The article of manufacture of claim 3 wherein the water soluble compound comprises at least one of sodium hydroxide, sodium carbonate, sodium bicarbonate, potassium hydroxide, potassium carbonate, potassium bicarbonate, ammonium carbonate, ammonium bicarbonate, monoethanolamine, diethanolamine, and triethanolamine. ### Claim 5 (depends on 2) The article of manufacture of claim 2 wherein the corrosion inhibitor composition comprises an essentially water insoluble compound. ### Claim 6 (depends on 5) The article of manufacture of claim 5 wherein the essentially water insoluble compound comprises at least one of zinc phosphate, calcium phosphate, and a long chain alkyl imidazoline. ### Claim 7 (depends on 1) The article of manufacture of claim 1 wherein the corrosion inhibitor composition is deposited on the first surface of the insulation mat. ### Claim 8 (depends on 1) The article of manufacture of claim 1 wherein the binder is a non-phenol formaldehyde (PF) composition. ### Claim 9 (depends on 1) The article of manufacture of claim 1 wherein the binder comprises one of an acrylic binder, a polyester binder, a binder which includes at least one reaction product from a Maillard reaction, and a combination thereof. ### Claim 10 (depends on 1) The article of manufacture of claim 1 wherein the binder comprises a polyester-type binder based upon one of: a monomeric polycarboxylic acid and a monomeric polyol, a polymeric polycarboxylic acid and a monomeric polyol, a monomeric polycarboxylic acid and a polymeric polyol, and a polymeric polycarboxylic acid and a polymeric polyol. ### Claim 11 (depends on 1) The article of manufacture of claim 1 wherein the binder comprises at least one reaction product from a Maillard reaction. ### Claim 12 (depends on 11) The article of manufacture of claim 11 wherein the reaction product comprises at least one product of a reducing sugar and an amine reactant. ### Claim 13 (depends on 11) The article of manufacture of claim 11 wherein the reaction product comprises at least one product of a carbohydrate reactant and a polycarboxylic acid ammonium salt reactant. ### Claim 14 (depends on 1) The article of manufacture of claim 1 wherein the metal sheet is a galvanized metal sheet. ### Claim 15 (depends on 1) The article of manufacture of claim 1 wherein the plurality of randomly oriented fibers are one of fiberglass fibers and rock wool fibers. ### Claim 16 An article of manufacture comprising: an insulation mat comprising a cured combination of a plurality of randomly oriented fibers and a binder, the insulation mat extending between a first surface and a second surface, the cured combination having one of an acidic pH and an alkaline pH when immersed in deionized water; a veil attached to the first surface, the veil structured to inhibit physical movement of the cured combination through the veil; and a corrosion inhibitor composition deposited on the cured combination of the insulation mat, the corrosion inhibitor composition having the opposite of the one of the acidic pH and the alkaline pH of the cured composition when immersed in deionized water. ### Claim 17 (depends on 16) The article of manufacture of claim 16 further comprising a metal sheet attached to the second surface by a water-containing adhesive contacting the metal sheet and the second surface. ### Claim 18 (depends on 17) The article of manufacture of claim 17 wherein the corrosion inhibitor composition is effective to modify toward neutral a pH of the cured combination in contact with water from the water-containing adhesive. ### Claim 19 (depends on 17) The article of manufacture of claim 17 wherein the veil is positioned in contact with a surface of a second metal sheet. ### Claim 20 (depends on 19) The article of manufacture of claim 19 wherein the corrosion inhibitor composition provides passivation of the surface of the second metal sheet. ### Claim 21 (depends on 20) The article of manufacture of claim 20 wherein the surface of the second metal sheet is galvanized. ### Claim 22 (depends on 16) The article of manufacture of claim 16 wherein the binder comprises at least one reaction product from a Maillard reaction, the cured composition has an acidic pH, and the corrosion inhibitor composition has an alkaline pH.