Patents Assigned to ROCKWOOL A/S
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Patent number: 12760211Abstract: The invention is directed to an aqueous adhesive composition for lignocellulosic materials.Type: GrantFiled: September 26, 2019Date of Patent: October 13, 2026Assignee: ROCKWOOL A/SInventors: Ib Johannsen, Bjørn Sjøgren Kilsgaard, Miroslav Nikolic
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Patent number: 12760515Abstract: The invention relates to a flat roof structure comprising a water attenuation layer comprising at least one water attenuation layer comprising at least one water attenuation element formed of man-made vitreous fibres bonded with a cured binder composition. The flat roof structure further comprises a water reducing layer below the water attenuation layer, and at least one drainage point in fluid communication with the water attenuation layer and arranged to direct water from the flat roof structure towards the ground. The binder is an aqueous composition free of phenol and formaldehyde comprising: a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, based on the dry weight of the lignosulfonate lignins, a component (ii) in form of one or more cross-linkers.Type: GrantFiled: October 1, 2021Date of Patent: October 13, 2026Assignee: Rockwool A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic, Charlotte Lind
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Publication number: 20260286697Abstract: A panel-based assembly includes a joining member and a sandwich panel. A first layered face of the sandwich panel is received in a channel of the joining member. Such an assembly including at least one sandwich panel and at least one joining members exhibits good load bearing and load transferring properties as the joining member is configured to add to the structural strength of the sandwich panel. Furthermore, as the load is distributed and not directed to specific load points a broader range of materials may be used, thus allowing for the use of more sustainable materials such as wood based materials.Type: ApplicationFiled: April 26, 2024Publication date: September 24, 2026Applicant: ROCKWOOL A/SInventors: Jens Eg RAHBEK, Hans Henrik TER-BORCH
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Patent number: 12709684Abstract: The present invention is directed to a high temperature low emitting mineral fiber product which is suitable as thermal insulation.Type: GrantFiled: April 1, 2021Date of Patent: August 18, 2026Assignee: ROCKWOOL A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic, Rikke Mattsson
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Patent number: 12661688Abstract: The invention provides a method and apparatus for treating at least part of an edge of an acoustic panel, and acoustic panels with such an edge treatment.Type: GrantFiled: November 9, 2021Date of Patent: June 23, 2026Assignee: ROCKWOOL A/SInventor: Sten Nørkjær
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Patent number: 12628747Abstract: The invention relates to a method for producing oxidized lignins.Type: GrantFiled: April 3, 2020Date of Patent: May 19, 2026Assignee: ROCKWOOL A/SInventors: Dorte Bartnik Johansson, Jens-Uwe Wichmann
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Patent number: 12623943Abstract: The invention relates to a method of preparing a mineral melt in a cupola furnace that uses at least one plasma torch to provide heat energy to the furnace. The plasma torch uses nitrogen, carbon monoxide, carbon dioxide, or a mixture thereof as the carrier gas. The invention also relates to a cupola furnace for the preparation of the mineral melt, and the use of a plasma torch in a cupola furnace to reduce the amount of NOx and/or hydrogen in the furnace off-gas.Type: GrantFiled: November 19, 2021Date of Patent: May 12, 2026Assignee: Rockwool A/SInventors: Lars Elmekilde Hansen, Haosheng Zhou
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Patent number: 12612782Abstract: The invention is directed to a mineral fibre product, comprising mineral fibres in contact with a binder resulting from the curing of an aqueous binder composition free of phenol and formaldehyde.Type: GrantFiled: October 1, 2021Date of Patent: April 28, 2026Assignee: ROCKWOOL A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic
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Patent number: 12601444Abstract: A thermally insulated pipe system includes a pipe with an outer diameter and a thermally insulating pipe section mounted on it. The pipe section has two longitudinal parts with longitudinal openings forming an aperture for the pipe. The parts face each other in a symmetry plane, with two webs in each opening that extend substantially to the symmetry plane and are arranged at an angle between 45° and 90°, forming a first groove between the webs and second grooves between each web and the surface of the opening.Type: GrantFiled: July 6, 2021Date of Patent: April 14, 2026Assignee: Rockwool A/SInventors: Jannie Bakkaer Sorensen, Jens Eg Rahbek
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Patent number: 12595656Abstract: The invention relates to a method of making an acoustic product and a novel acoustic product, wherein the acoustic product is made by adhering a facing to a first major surface of an acoustic insulation element by the use of an adhesive and curing the adhesive. The adhesive is an aqueous adhesive composition which is free of phenol and formaldehyde and comprises: a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, such as 0.03 to 1.4 mmol/g, such as 0.075 to 2.0 mmol/g, such as 0.075 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins, a component (ii) in form of one or more cross-linkers.Type: GrantFiled: October 1, 2021Date of Patent: April 7, 2026Assignee: Rockwool A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic
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Patent number: 12595655Abstract: The invention relates to a method of making an insulation product and a novel insulation product, wherein the insulation product is made by adhering a facing to at least one major surface of a batt of man-made vitreous fibres in a matrix comprising a binder by the use of an adhesive and curing the adhesive. The adhesive is an aqueous composition which is free of phenol and formaldehyde and comprises: a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, such as 0.03 to 1.4 mmol/g, such as 0.075 to 2.0 mmol/g, such as 0.075 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins, a component (ii) in form of one or more cross-linkers.Type: GrantFiled: October 1, 2021Date of Patent: April 7, 2026Assignee: Rockwool A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic
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Patent number: 12584019Abstract: A sports field can comprise: (i) a lower base layer; (ii) an upper grass and/or artificial grass layer, and (iii) a shock pad layer, positioned between the base layer and the grass or artificial grass layer. The shock pad layer can comprise at least one shock pad comprising a coherent plate having upper and lower major surfaces, and the coherent plate can comprise at least one coherent layer comprising man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition. The aqueous binder composition prior to curing can comprise a component (i) in form of one or more oxidized lignins; a component (ii) in form of one or more cross-linkers; and a component (iii) in form of one or more plasticizers.Type: GrantFiled: April 3, 2020Date of Patent: March 24, 2026Assignee: Rockwool A/SInventors: Linda De Vries, Dorte Bartnik Johansson, Miroslav Nikolic
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Publication number: 20260062338Abstract: The present invention relates to a process for preparing a mineral melt in a cupola furnace that comprises a plasma torch that heats mineral material and waste or recycled mineral material to form the melt, wherein the waste or recycled mineral 5 material is introduced into the furnace through a waste inlet located in the side wall of the furnace hot zone.Type: ApplicationFiled: September 1, 2023Publication date: March 5, 2026Applicant: ROCKWOOL A/SInventors: Lars Elmekilde Hansen, Anders Williams
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Patent number: 12565767Abstract: The present invention relates to a storm water management system comprising a first conduit, a storage device, a first well and a valve, wherein the storage device comprises a coherent man-made vitreous fibre module (MMVF module), wherein the MMVF module comprises an upper passage and a lower passage, wherein the upper passage is in fluid communication with the first conduit, and wherein the lower passage is connected to the first well by the valve.Type: GrantFiled: December 21, 2020Date of Patent: March 3, 2026Assignee: Rockwool A/SInventors: Morten Agenfeld Fagerberg, Michaeel Emborg
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Patent number: 12553235Abstract: A method of reducing the formaldehyde emission of a mineral fiber product bonded with a urea-modified phenol-formaldehyde resol resin-type binder comprises adding dextrose to the binder composition during and/or after preparation of the binder composition but before curing of the binder composition applied to the mineral fibers.Type: GrantFiled: December 9, 2021Date of Patent: February 17, 2026Assignee: ROCKWOOL A/SInventors: Erling Lennart Hansen, Lars Naerum, Povl Nissen
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Publication number: 20260042696Abstract: A rotor for a fiberising apparatus includes a rotor housing and a first and second bearing assembly, wherein each bearing assembly includes at least two ball bearings, each seated in a respective bearing seat. A substantially horizontal shaft rotatably is mounted between the first bearing assembly and the second bearing assembly. The apparatus includes a plurality of resilient dampers arranged in an annular ring, wherein each resilient damper is releasably connected at a first end to the bearing seat and is releasably connected at a second end to the inner wall of the rotor housing.Type: ApplicationFiled: October 15, 2025Publication date: February 12, 2026Applicant: ROCKWOOL A/SInventors: Jens Jørren Sørensen, Gorm Rosenberg
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Patent number: 12546114Abstract: The disclosure relates to a roofing system for a flat roof or a flat inclined roof of a building with a thermal and/or acoustic insulation, consisting of a structural support, a deck, optionally a vapour control layer, a waterproof membrane and at least one insulation element being a bonded mineral fibre product made of mineral fibres, preferably stone wool fibres, and a cured aqueous binder, whereby the cured aqueous binder prior to curing comprises a component (i) in form of one or more oxidized lignins, a component (ii) in form of one or more cross-linkers, a component (iii) in form of one or more plasticizers, and whereby the insulation element has a bulk density between 70 kg/m3 and 250 kg/m3.Type: GrantFiled: April 3, 2020Date of Patent: February 10, 2026Assignee: Rockwool A/SInventors: Dorte Bartnik Johansson, Miroslav Nikolic
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Publication number: 20260035843Abstract: The invention relates to a process for manufacturing mineral fibre panels. The invention relates in particular to a process of manufacturing mineral fibre panels having high strength despite reduced binder content, thereby providing improved fire safety.Type: ApplicationFiled: July 25, 2023Publication date: February 5, 2026Applicant: Rockwool A/SInventors: Cornelus Johannes Maria Ghijzen, Martinus Adriana Baets
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Patent number: 12502879Abstract: The invention relates to an aqueous binder composition for mineral fibers comprising at least one hydrocolloid.Type: GrantFiled: May 11, 2017Date of Patent: December 23, 2025Assignee: ROCKWOOL A/SInventor: Thomas Hjelmgaard
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Patent number: D1109376Type: GrantFiled: January 3, 2025Date of Patent: January 13, 2026Assignee: ROCKWOOL A/SInventors: Jesper Wolff, Maciej Mosiadz