Patents Assigned to Rockwool International A/S
  • Publication number: 20140254627
    Abstract: The present invention concerns a method and an apparatus (12) for measuring the temperature of a fluid stream (11), said apparatus comprising a movable frame (13, 14) having first end facing towards the fluid stream to be measured and an oppositely directed second end; a beam splitter (9) which is movably arranged in the frame for advancement into said fluid stream to open the fluid stream; an optical temperature measurement device (8) for determining the temperature of the fluid stream by measuring the thermal radiation from the fluid stream; and control means for controlling the movement of the frame and the beam splitter and controlling the performance of the optical temperature measurement device.
    Type: Application
    Filed: September 21, 2012
    Publication date: September 11, 2014
    Applicant: ROCKWOOL INTERNATIONAL A/S
    Inventors: Haosheng Zhou, Jeroen Petrus Wilhelmus Sap, Lars Bøllund, Per Steenbjerg
  • Patent number: 8822359
    Abstract: The invention relates to mineral fibers formed of a composition comprising the following oxides, by weight of composition: —SiO235 to 43.5% —Al2O3 18 to 22% —Fe2O3 9 to 16% —CaO 8 to 17% —MgO 7 to 15% —Na2O+K2O 1 to 5% —MnO up to 2%.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: September 2, 2014
    Assignee: Rockwool International A/S
    Inventors: Mette Solvang, Eva Ravn Nielsen, Dorthe Lybye
  • Publication number: 20140228461
    Abstract: The invention provides a foamable composition comprising a foam pre-cursor and man-made vitreous fibres produced with a cascade spinner or a spinning cup, wherein at least 50% by weight of the man-made vitreous fibres have a length of less than 100 micrometres.
    Type: Application
    Filed: August 20, 2012
    Publication date: August 14, 2014
    Applicant: Rockwool International A/S
    Inventors: Dag Nielsen, Dorte Bartnik Johansson
  • Publication number: 20140215961
    Abstract: The invention relates to a packing- and/or transport unit comprising several fibrous insulation elements (4, 5) for flat roof insulation being arranged in at least one stack (2) and at least one support means (3) being arranged under the stack (2), whereby the stack (2) contains at least two different types of insulation elements (4, 5), which differ with respect to the material properties. A packing- and/or transport unit which is easy to handle and which allows to arrange most of the materials close to the places where it is needed is achieved in that the stacked insulation elements (4, 5) comprise lamellas (4) and/or lamella boards having a high compression strength but low point load resistance due to their fiber orientation and at least one insulation board (5) having an even higher compression strength and high point load resistance.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 7, 2014
    Applicant: Rockwool International A/S
    Inventors: Kurt Munk Pedersen, Herluf Nielsen
  • Publication number: 20140190107
    Abstract: An insulation element for thermal and/or acoustic insulation of a flat roof or a flat inclined roof comprises a first layer made of mineral fibres, and a second layer made of at least one fabric, whereby the second layer is fixed to a major surface of the first layer by an adhesive. To reduce the adhesive costs and the risk of blistering the roof membrane at the application stage, the second layer is impregnated with a filler. The second layer in combination with the filler has a permeability allowing hot air gases to pass through the second layer and closing the second layer for the penetration of a glue or adhesive in the direction to the first layer.
    Type: Application
    Filed: August 2, 2012
    Publication date: July 10, 2014
    Applicant: ROCKWOOL INTERNATIONAL A/S
    Inventor: Hendricius Geradus Maria Beckers
  • Publication number: 20140182199
    Abstract: The invention provides a multiple density growth substrate product (1) formed of a coherent matrix of man-made vitreous fibres (MMVF) bonded with binder, having an upper surface (2) provided with a recess (3) adapted to receive a seed or seedling and an opposite lower surface (4) on which the product rests when in use, the product being formed of at least two layers including an upper layer (5) positioned at the upper surface and having a first density and a lower layer (6) positioned at the opposite lower surface and having a second density, wherein the first density is less than the second density by at least 5 kg/m3 and wherein the loss on ignition (LOI) in the upper layer is at least 3.5 wt %.
    Type: Application
    Filed: May 16, 2012
    Publication date: July 3, 2014
    Applicant: Rockwool International A/S
    Inventors: Eelke Gjalt Hempenius, Frank Hendrikus Peter Janssen, Jean Marie Wilhelmus Cuypers
  • Patent number: 8763754
    Abstract: The invention relates to a sound insulating element for the ceiling area of a building, in particular for rooms subject to increased humidity such as underground parking, and basement rooms, which sound insulating element consists of an insulation element (2) made from mineral fibers bound with a binding agent and having two mutually spaced large surfaces extending parallel to each other, and of a coating (5) from a hydraulically and/or chemically set mass, wherein the coating (5) is connected to the insulation element (2), whereby the coating (5) to be oriented towards the room includes an array of openings (7) forming a regular hole pattern and penetrating the coating (5) as far as to the insulation element (2). The invention moreover relates to a process for producing said sound insulating element.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: July 1, 2014
    Assignee: Rockwool International A/S
    Inventor: Elisabeth Hildegard Billes-Pieper
  • Patent number: 8753732
    Abstract: A flexible heat insulation product (1) comprising a flexible heat insulating core layer (4) with a first side (3) and a second side (9), and a flexible facing (2) that is connected to the first side (3) of the insulating core layer (4) by a plurality of elements (7) that extends from the facing (2) to the second side (9) of the insulating core layer (4). The insulation product (1) further comprises a flexible heat insulating cover layer (8) that is secured to the second side (9) of the insulating core layer (4). A method for producing such a product is also disclosed.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: June 17, 2014
    Assignee: Rockwool International A/S
    Inventor: Kristian Skovgaard Jorgensen
  • Publication number: 20140135430
    Abstract: An aqueous binder composition for mineral fibres comprises: (1) a water-soluble binder component obtainable by reacting at least one alkanolamine with at least one polycarboxylic acid or anhydride and, optionally, treating the reaction product with a base; (2) a sugar component; and (3) urea, the proportion of components (1), (2) and (3) being within the range of 10 to 80 wt. % of (1), 15 to 80 wt. % of (2), and 5 to 60 wt. % of (3), based on the solids content of components (1), (2) and (3) as measured after heat treatment for 1 hour at 200° C.
    Type: Application
    Filed: July 20, 2012
    Publication date: May 15, 2014
    Applicant: ROCKWOOL INTERNATIONAL A/S
    Inventors: Lars Naerum, Povl Nissen, Erling Lennart Hansen
  • Publication number: 20140101996
    Abstract: A man-made vitreous fibre (MMVF) plant growth substrate is provided together with an irrigation strategy for providing water to the substrate. The substrate comprises a slab having a volume of 3 to 20 litres on which a single block containing one or more plants is disposed. In the context of this substrate, it is found that an irrigation strategy can be used which comprises a first period during which the desired water content in the slab is reduced to a minimum level before increasing and a second period during which the desired water content is maintained at a substantially constant level, wherein the difference between the minimum level and the constant level expressed as a percentage of the water content required to saturate the plant growth substrate is less than or equal to 25%. This provides excellent control over the balance between vegetative and generative growth in the plant.
    Type: Application
    Filed: December 21, 2012
    Publication date: April 17, 2014
    Applicant: Rockwool International A/S
    Inventor: Eelke Gjalt Hempenius
  • Publication number: 20140087119
    Abstract: Method for manufacturing an aerogel-containing composite, said method comprising the steps of: providing fibres, at least some of which are first fibres, such as mineral fibres, polymer fibres, cellulose fibres, or other types of fibres, in an amount of from 3 to 80 wt % of the total weight of starting materials, providing an aerogel particulate material in an amount of from 10 to 75 wt % of the total weight of starting materials, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, suspending the fibres in a primary air flow and suspending the aerogel particulate material in the primary air flow, thereby mixing the suspended aerogel particulate material with the suspended fibres, mixing the binder with the fibres and/or aerogel particulate material before, during or after mixing of the fibres with the aerogel particulate material, collecting the mixture of fibres, aerogel particulate material and binder and pressing and curing the mixture to provide a consolidated c
    Type: Application
    Filed: July 29, 2011
    Publication date: March 27, 2014
    Applicant: Rockwool International A/S
    Inventors: Kenn Christensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
  • Publication number: 20140076197
    Abstract: An aqueous binder composition for mineral fibers comprises: (a) a sugar syrup containing a reducing sugar and having a dextrose equivalent DE of at least 50 and less than 85; (b) a polycarboxylic acid component; (c) an amine component; and, optionally, (d) a reaction product of a polycarboxylic acid component (b) and an amine component (c).
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Applicant: ROCKWOOL INTERNATIONAL A/S
    Inventor: Erling Lennart HANSEN
  • Publication number: 20140059970
    Abstract: The invention relates to a method for providing a fire safe penetration in a building element, especially in a ceiling, floor or in a lightweight wall comprising a framework of profile elements and at least one outer covering being fixed to said profile elements.
    Type: Application
    Filed: November 2, 2011
    Publication date: March 6, 2014
    Applicants: Deutsche Rockwool Mineralwoll GmbH & Co. OHG, Rockwool International A/S
    Inventor: Stephan-Ferdinand Reichinger
  • Publication number: 20140056642
    Abstract: The invention provides a riding surface formed of a mixture of sand with stone fibres.
    Type: Application
    Filed: March 14, 2012
    Publication date: February 27, 2014
    Applicant: Rockwool International A/S
    Inventor: Linda de Vries
  • Publication number: 20140020212
    Abstract: The invention relates to a method for removing shot from mineral fibres comprising providing a collected web of mineral fibres containing shot, subjecting the collected web of fibres to a disentanglement process, suspending the disentangled fibres in a primary air flow, thereby allowing separation of the fibres from the shot and collecting the fibres, wherein from 0% up to less than 1% by weight binder is present in the fibres collected from the primary air flow.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 23, 2014
    Applicant: Rockwool International A/S
    Inventors: Cor J.M. Ghijzen, Pedro H.J. Kessels
  • Publication number: 20140001676
    Abstract: The invention relates to a method for manufacturing a mineral fibre-containing composite and the novel mineral fibre-containing element produced by that method.
    Type: Application
    Filed: November 9, 2011
    Publication date: January 2, 2014
    Applicant: Rockwool International A/S
    Inventors: Kristian Skovgaard Jorgensen, Cor Ghijzen, Martinus Adriana Baets
  • Publication number: 20130333536
    Abstract: An apparatus for transverse cutting of a web has a frame straddling the web path, a side frame on each side of the web path and an upper frame between the two side frames, a circular saw blade suspended in a pendulum arm pivotably connected to the upper frame, a swinging drive for controlling the swinging movement of the saw blade, wherein the pendulum arm is pivotably mounted in a vertically movable sub-frame of the upper frame, and the vertical movement of the sub-frame relative to the upper frame is managed by a lifting drive that is coordinated with the swinging drive. Also disclosed is a method for transverse cutting a web.
    Type: Application
    Filed: December 6, 2011
    Publication date: December 19, 2013
    Applicant: Rockwool International A/S
    Inventor: Jens Houlberg
  • Patent number: 8591642
    Abstract: An aqueous binder composition for mineral fibers comprises: (a) a sugar syrup containing a reducing sugar and having a dextrose equivalent DE of at least 50 and less than 85; (b) a polycarboxylic acid component; (c) an amine component; and, optionally, (d) a reaction product of a polycarboxylic acid component (b) and an amine component (c).
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: November 26, 2013
    Assignee: Rockwool International A/S
    Inventor: Erling Lennart Hansen
  • Patent number: 8590243
    Abstract: A thermally insulated building brick (1) and a method for production thereof, wherein the brick comprises a structural body (2) with at least one cavity (8) and an insulating filling (3) arranged in the cavity. To provide a brick with high insulation value suited for mass production, the insulating filling comprises an insulating material arranged in a leading-in sheath.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: November 26, 2013
    Assignee: Rockwool International A/S
    Inventors: Kristian Skovgaard Jorgensen, Roman Rupp
  • Publication number: 20130295813
    Abstract: A method of reducing the formaldehyde emission of a mineral fibre product bonded with a urea-modified phenol-formaldehyde resol resin-type binder comprises the step of 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 fibres.
    Type: Application
    Filed: December 5, 2011
    Publication date: November 7, 2013
    Applicant: ROCKWOOL INTERNATIONAL A/S
    Inventors: Erling Lennart Hansen, Lars Naerum, Povl Nissen