Patents Assigned to ROCKWOOL A/S
  • Patent number: 12760211
    Abstract: The invention is directed to an aqueous adhesive composition for lignocellulosic materials.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 13, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Ib Johannsen, Bjørn Sjøgren Kilsgaard, Miroslav Nikolic
  • Patent number: 12760515
    Abstract: 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: Grant
    Filed: October 1, 2021
    Date of Patent: October 13, 2026
    Assignee: Rockwool A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic, Charlotte Lind
  • Publication number: 20260286697
    Abstract: 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: Application
    Filed: April 26, 2024
    Publication date: September 24, 2026
    Applicant: ROCKWOOL A/S
    Inventors: Jens Eg RAHBEK, Hans Henrik TER-BORCH
  • Patent number: 12709684
    Abstract: The present invention is directed to a high temperature low emitting mineral fiber product which is suitable as thermal insulation.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 18, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic, Rikke Mattsson
  • Patent number: 12661688
    Abstract: 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: Grant
    Filed: November 9, 2021
    Date of Patent: June 23, 2026
    Assignee: ROCKWOOL A/S
    Inventor: Sten Nørkjær
  • Patent number: 12628747
    Abstract: The invention relates to a method for producing oxidized lignins.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 19, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Dorte Bartnik Johansson, Jens-Uwe Wichmann
  • Patent number: 12623943
    Abstract: 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: Grant
    Filed: November 19, 2021
    Date of Patent: May 12, 2026
    Assignee: Rockwool A/S
    Inventors: Lars Elmekilde Hansen, Haosheng Zhou
  • Patent number: 12612782
    Abstract: 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: Grant
    Filed: October 1, 2021
    Date of Patent: April 28, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic
  • Patent number: 12601444
    Abstract: 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: Grant
    Filed: July 6, 2021
    Date of Patent: April 14, 2026
    Assignee: Rockwool A/S
    Inventors: Jannie Bakkaer Sorensen, Jens Eg Rahbek
  • Patent number: 12595656
    Abstract: 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: Grant
    Filed: October 1, 2021
    Date of Patent: April 7, 2026
    Assignee: Rockwool A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic
  • Patent number: 12595655
    Abstract: 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: Grant
    Filed: October 1, 2021
    Date of Patent: April 7, 2026
    Assignee: Rockwool A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic
  • Patent number: 12584019
    Abstract: 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: Grant
    Filed: April 3, 2020
    Date of Patent: March 24, 2026
    Assignee: Rockwool A/S
    Inventors: Linda De Vries, Dorte Bartnik Johansson, Miroslav Nikolic
  • Publication number: 20260062338
    Abstract: 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: Application
    Filed: September 1, 2023
    Publication date: March 5, 2026
    Applicant: ROCKWOOL A/S
    Inventors: Lars Elmekilde Hansen, Anders Williams
  • Patent number: 12565767
    Abstract: 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: Grant
    Filed: December 21, 2020
    Date of Patent: March 3, 2026
    Assignee: Rockwool A/S
    Inventors: Morten Agenfeld Fagerberg, Michaeel Emborg
  • Patent number: 12553235
    Abstract: 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: Grant
    Filed: December 9, 2021
    Date of Patent: February 17, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Erling Lennart Hansen, Lars Naerum, Povl Nissen
  • Publication number: 20260042696
    Abstract: 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: Application
    Filed: October 15, 2025
    Publication date: February 12, 2026
    Applicant: ROCKWOOL A/S
    Inventors: Jens Jørren Sørensen, Gorm Rosenberg
  • Patent number: 12546114
    Abstract: 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: Grant
    Filed: April 3, 2020
    Date of Patent: February 10, 2026
    Assignee: Rockwool A/S
    Inventors: Dorte Bartnik Johansson, Miroslav Nikolic
  • Publication number: 20260035843
    Abstract: 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: Application
    Filed: July 25, 2023
    Publication date: February 5, 2026
    Applicant: Rockwool A/S
    Inventors: Cornelus Johannes Maria Ghijzen, Martinus Adriana Baets
  • Patent number: 12502879
    Abstract: The invention relates to an aqueous binder composition for mineral fibers comprising at least one hydrocolloid.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 23, 2025
    Assignee: ROCKWOOL A/S
    Inventor: Thomas Hjelmgaard
  • Patent number: D1109376
    Type: Grant
    Filed: January 3, 2025
    Date of Patent: January 13, 2026
    Assignee: ROCKWOOL A/S
    Inventors: Jesper Wolff, Maciej Mosiadz