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1. WO2020064496 - ACOUSTIC CEILING PANEL

Publication Number WO/2020/064496
Publication Date 02.04.2020
International Application No. PCT/EP2019/075135
International Filing Date 19.09.2019
IPC
E04B 1/74 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
62Insulation or other protection; Elements or use of specified material therefor
74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
CPC
B29C 43/003
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
003characterised by the choice of material
B29C 43/228
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
22of articles of indefinite length
228using endless belts feeding the material between non-rotating pressure members, e.g. vibrating pressure members
B29K 2005/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2005Use of polysaccharides or derivatives as moulding material
B29K 2309/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2309Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
B29K 2995/0002
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2995Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
0001having particular acoustical properties
0002insulating
B29L 2031/10
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2031Other particular articles
10Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
Applicants
  • ROCKWOOL INTERNATIONAL A/S [DK]/[DK]
Inventors
  • AUGUSTINAS, Chris, Albert
  • CHRISTEON, Brett
  • HANSEN, Erling, Lennart
  • HJELMGAARD, Thomas
  • KOOP, Magdalena, Hubertina Maria
  • NAERUM, Lars
  • NISSEN, Povl
  • SHAH, Amish
  • SMITH, Thomas
Agents
  • LETZELTER, Felix
Priority Data
62/738,30028.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ACOUSTIC CEILING PANEL
(FR) PANNEAU DE PLAFOND ACOUSTIQUE
Abstract
(EN)
An acoustical ceiling panel is provided having a core with a front face and a back face composed of air laid mineral fibers and an aqueous binder. The aqueous binder includes a first component in the form of one or more carbohydrates, and a second component in the form of one or more compounds selected from sulfamic acid, derivatives of sulfamic acid, and any salts thereof, ammonia and hypophosphorous acid. A formaldehyde-free first fleece having a thickness is secured to the front face of the core by powdered adhesive and a formaldehyde-free second fleece having a thickness is secured to the back face of the core by the aqueous binder, with the thickness of the first fleece being greater than the thickness of the second fleece. Paint is applied to the first fleece. The acoustical ceiling panel has formaldehyde emissions of below 8 µg/m2/h of formaldehyde, preferably below 5 µg/m2/h, most preferably below 3 µg/m2/h, in accordance with ISO 16000 for testing aldehyde emissions.
(FR)
La présente invention concerne un panneau de plafond acoustique qui est pourvu d'une âme qui a une face avant et une face arrière composées de fibres minérales posées à l'air et d'un liant aqueux. Le liant aqueux comprend un premier composant sous la forme d'un ou de plusieurs glucides, et un second composant sous la forme d'un ou de plusieurs composés sélectionnés parmi de l'acide sulfamique, des dérivés d'acide sulfamique, et des sels quelconque de ceux-ci, de l'ammoniac et de l'acide hypophosphoreux. Un premier polaire exempt de formaldéhyde qui a une épaisseur est fixé à la face avant de l'âme par un adhésif en poudre et un second polaire exempt de formaldéhyde qui a une épaisseur est fixé à la face arrière de l'âme par le liant aqueux, l'épaisseur du premier polaire étant supérieure à l'épaisseur du second polaire. De la peinture est appliquée sur le premier polaire. Le panneau de plafond acoustique a des émissions de formaldéhyde inférieures à 8 µg/m2/h de formaldéhyde, de préférence inférieures à 5 µg/m2/h, de préférence inférieures à 3 µg/m2/h, conformément à la norme ISO 16000 pour la réalisation d'essais en ce qui concerne les émissions d'aldéhyde.
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