# US 2019/0316787 A1 · Mineral fibre insulation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0316787 A1 - Document ID: US20190316787A1 - Status: Published application - Kind: A1 - Application number: 16/451,880 - Filed: 2019-06-25 - Published: 2019-10-17 - Earliest claimed: 2009-11-12 - Assignees: Knauf Insulation SPRL; Knauf Insulation, Inc. - Applicants: Knauf Insulation SPRL; Knauf Insulation, Inc. - Inventors: Roger JACKSON; Tony AINDOW; George BAYBUTT - Web page: https://patentgrep.com/patent/US20190316787A1 ## CPC - F24C 15/34: Elements and arrangements for heat storage or insulation - C03C 13/06: Mineral fibres, e.g. slag wool, mineral wool, rock wool - C03C 25/26: Macromolecular compounds or prepolymers - C04B 14/42: Glass - C04B 26/20: Polyamides - C04B 26/28: Polysaccharides or derivatives thereof - C04B 30/02: containing fibrous materials - D04H 1/42: characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece - D04H 1/4209: Inorganic fibres - D04H 1/4218: Glass fibres - D04H 1/587: characterised by the bonding agents used - C04B 2111/1006: {Absence of well-defined organic compounds} - C04B 2201/30: for heat transfer properties such as thermal insulation values, e.g. R-values - F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS - C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE - D04H: MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL (weaving D03; knitting D04B; braiding D04C; net-making D04G; sewing D05B; tufting D05C; finishing non-woven fabrics D06); FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING {; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION}(non-woven fabrics having an intermediate or external layer of a different kind, e.g. of woven fabric, B32B) ## Abstract A mineral wool insulating product having improved off gassing characteristics is particularly adapted for high temperature applications. ## Claims ### Claim 1 A mineral fibre insulating material comprising at least 0.5% by weight of an organic binder and having an off-gassing dominated by ketones when first heated to a temperature of 200° C. ### Claim 2 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the off gassing also comprises significant furans. ### Claim 3 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the dust level is less than or equal to 20 g/m3. ### Claim 4 A mineral fibre insulating material comprising at least 0.5% by weight of a binder, the material having a dust level of less than or equal to 20 g/m3 and off-gassing dominated by ketones when first heated to a temperature of 200° C. ### Claim 5 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which when first heated to a temperature of 200° C. off gassing of formaldehyde is less than 30 mg/kg. ### Claim 6 (depends on 1) The mineral fibre insulating material in accordance with claim 1 in which the off gassing gives predominantly baking odours. ### Claim 7 (depends on 1) The mineral fibre insulating material in accordance with claim 1 in which the Recovered Thickness is at least 100%. ### Claim 8 (depends on 1) The mineral fibre insulating material in accordance with claim 1 in which the Ordinary Parting Strength is at least 100 g/g. ### Claim 9 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the Weathered Parting Strength is at least 80 g/g. ### Claim 10 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the binder content is in the range 0.5 to 10% by weight. ### Claim 11 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the binder is formaldehyde free. ### Claim 12 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the binder is based on a reducing sugar. ### Claim 13 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the binder comprises at least one Maillard reaction product. ### Claim 14 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the binder is based on reaction products obtained by curing an aqueous solution comprising citric acid, ammonia and dextrose. ### Claim 15 (depends on 1) The mineral fibre insulating material in accordance with claim 1, in which the product has a density between 5 and 40 kg/m3. ### Claim 16 (depends on 1) A heating device adapted to operate at a temperature greater than 100 ° C. comprising a mineral fibre insulating material in accordance with claim 1. ### Claim 17 (depends on 1) An oven or range comprising a mineral fibre insulating material in accordance with claim 1. ### Claim 18 (depends on 1) A storage heater comprising a mineral fibre insulating material in accordance with claim 1. ### Claim 19 (depends on 1) A mineral fibre insulating material in accordance with claim 1 in a domestic oven, a self cleaning domestic oven, a range or a storage heater.