EP4015728A1 - Sprühbare lärmschutzbeschichtung auf einer modularen struktur - Google Patents

Sprühbare lärmschutzbeschichtung auf einer modularen struktur Download PDF

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Publication number
EP4015728A1
EP4015728A1 EP20215545.3A EP20215545A EP4015728A1 EP 4015728 A1 EP4015728 A1 EP 4015728A1 EP 20215545 A EP20215545 A EP 20215545A EP 4015728 A1 EP4015728 A1 EP 4015728A1
Authority
EP
European Patent Office
Prior art keywords
acoustic
panels
structure according
coating
grid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20215545.3A
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English (en)
French (fr)
Inventor
Tuomas HÄNNINEN
Marko MAKKONEN
Juha RYYPPÖ
Tapani TUONONEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lumir Oy
Original Assignee
Lumir Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lumir Oy filed Critical Lumir Oy
Priority to EP20215545.3A priority Critical patent/EP4015728A1/de
Publication of EP4015728A1 publication Critical patent/EP4015728A1/de
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated

Definitions

  • the present invention relates to improved acoustic structures, more precisely sprayable natural fibrous acoustic coatings on modular background structures for providing seamless and easily applicable acoustic solutions.
  • the acoustic elements and surfaces are structures that remain in sight, their architectural image should also be suitable for their environment and the other surfaces of the space. The thickness of the panel or surface should remain within reasonable limits, which, on the other hand, is inconsistent with the high requirement of sound absorption.
  • the acoustic elements or surfaces should also fulfil the visual criteria which are set for the surface materials of interiors, and they should also have mechanical and physical properties that are suitable for their environment of use.
  • the requirement of considering environmental aspects, to an increasing extent also applies to the acoustic surfaces and elements with respect to the manufacture and recyclability of the materials, for example.
  • acoustic elements include mineral wool-based (fibreglass or rock wool-based) acoustic panels. On the sides of these which remain in sight, the surface of the mineral wool is coated, for example, with paper, plastic, fabric or glass fleece. Being relatively light components, these acoustic elements are simple to install, for example, on the ceiling or walls of the space that is to be provided with sound absorption, either as separate elements or as an unbroken surface. They can also be formed into acoustic planes that are lowered down from the ceiling, for example.
  • various fibre-based coating compounds are also known, which are sprayed or applied in another way and which provide a mechanical surface structure that is more elastic and durable than glass and rock-based coatings, and which can also contribute to the acoustics of the premises.
  • the disclosures of FI 95041 and WO 2007/063178 describe natural fibre-based coatings that are sprayed when mixed with water, or applied in a similar manner and hardened through drying.
  • the fibre of the coating compound of FI 95041 comprises fine cellulose fibre.
  • the compound in addition to the fibre material and the binder, includes particle-like, typically mineral-based fillers, by means of which the surface of the coating becomes smooth and which can adjust the acoustic properties of the coating.
  • US 3,044,919 relates to a surfacing or facing construction particularly adaptable for application on wall and ceiling areas or surfaces and to a method or system of applying the surface of facing to an area, the surfacing or facing construction embodying a thin mat, layer or sheet of mineral material adapted to be adhesively joined to the surface or area to be finished.
  • the surfacing or facing construction embodying a thin mat, layer or sheet of mineral material adapted to be adhesively joined to the surface or area to be finished.
  • it does not disclose natural fibrous acoustic coatings on modular background structures, nor especially fixing the coating to a desired surface without binders.
  • US 2018/0251976 relates to acoustic panels, grids for acoustic panels, suspended ceiling systems and a method for producing an acoustic panel.
  • CA 2126059 describes an acoustical ceiling panel, which includes a generally pyramid-form frame having an exterior surface and interior cavity. A fabric covering is positioned on the exterior surface of the frame and a lining of acoustically dampening material is positioned within the interior cavity.
  • US 2020/0002942 on the other hand discloses an acoustic drop ceiling product, a dynamic acoustic drop ceiling system and related methods that include multiple differently shaped drop ceiling products that can be quickly and easily installed into a backer panel and then onto construction drop ceiling hangers to provide an aesthetically pleasing image along with a reduction in unwanted noise or room acoustics.
  • these publications do not disclose acoustic solutions, wherein the ceiling structure/system is seamlessly coated with a sprayable natural acoustic fibrous matter without requiring any ground work for preparing the ceiling structure/system for the coating step.
  • a monolithic acoustic structure made of a modular background structure, which has been seamlessly coated with a sprayable natural fibrous acoustic material.
  • an acoustic structure such as a suspended, drop or modular ceiling comprising panels, coated with a natural fibrous acoustic material, wherein the acoustic coating is attached to the surface of the ceiling structure/system, preferably even without using any binders.
  • the acoustic structure of the present invention is mainly characterized by what is stated in the characterizing part of claim 1.
  • the natural acoustic coating can be applied by spraying straight on to a surface of a suspended, drop or modular ceiling structure without requiring any ground work, providing a monolithic surface, which essentially improves the visual appearance of the ceiling by hiding the seams and structures beneath. Same applies for wall structures made for example mineral wool-based panels.
  • the natural fibrous acoustic coating according to the present invention is applicable to the surface of a background structure without using any binders.
  • natural fibrous coatings are not harmful for consumers and they enable moisture vaporization from the below structures.
  • One major advantage is that the acoustic solution of the present invention is able to effectively bind carbon dioxide from the atmosphere due to its natural raw material features.
  • Synthetic acoustic products are not able to do the same.
  • the present products provide tens of years of service life, whereby carbon dioxide is bound even longer than with typical bio-fibers, such as paper.
  • the present technology provides sprayable acoustic coatings on modular background structures that improves the acoustic properties of premises and reduces the drawbacks of the known solutions, and provides aesthetically pleasing acoustic solutions.
  • the present technology is particularly suitable for reducing reverberation in inner acoustics of premises.
  • One purpose of the invention is to provide an acoustic structure, which is formed by utilising a natural fibrous coating composition, which is particularly suitable for the purpose and which provides effective sound absorption and acoustic transparency, and from which no significant amounts of dust or other particles come off, even after drying.
  • the present invention is based on a combination of a modular background material and/or structure and a natural fibrous coating on a surface of the modular background material and/or structure.
  • One aspect of the present invention is a combination of a modular background structure and an acoustic coating, wherein the acoustic coating is made of natural fibrous matter and is applied by spraying onto a surface of the modular background structure, and wherein the natural fibrous matter seamlessly covers the modular background structure and all its elements.
  • module background structure is intended to comprise all structures and systems made of modules and/or panels. Thus, it may for example be a suspended or drop ceiling structure comprising panels installed into a grid structure or grid system. Also modular structures comprising panels without grid structures/systems belong to the scope of the present invention.
  • the acoustic structure can thus be for example a ceiling structure, or a wall structure, or any other structure, which requires sound-proofing and is made of modules, which are seamlessly coated with a natural fibrous acoustic coating.
  • the natural fibrous matter is plant or plant-based fibre, such as pulp, flax, cotton or hemp fibre, cellulosic man-made fibre, such as viscose, microcellulose or nanocellulose, or animal-based fibre, such as silk or wool-based fibre, or a mixture of such fibres.
  • the acoustic coating comprises the natural fibrous matter 20-100% of the dry-matter mass of the acoustic coating.
  • the acoustic coating has a thickness between 3 to 10 mm, preferably between 6 to 8 mm.
  • the acoustic coating further comprises 0-80% of mineral filler from its dry matter mass, preferably mineral silicate, mineral sulphate or mineral carbonate, most preferably kaolin.
  • the acoustic coating comprises a fire retardant and an anti-rot agent, selected for example from a group of boron-based substances, such as boric acid or borax or a mixture thereof, hydroxides, such as aluminium or magnesium hydroxide or a mixture thereof, or absorbing agents, such as talc or calcium carbonate or a mixture thereof, most preferably boric acid or borax, particularly a mixture thereof, in an amount of 8-25% by weight of the dry matter at the most.
  • an anti-rot agent selected for example from a group of boron-based substances, such as boric acid or borax or a mixture thereof, hydroxides, such as aluminium or magnesium hydroxide or a mixture thereof, or absorbing agents, such as talc or calcium carbonate or a mixture thereof, most preferably boric acid or borax, particularly a mixture thereof, in an amount of 8-25% by weight of the dry matter at the most.
  • the acoustic coating does not contain any binders for binding into the surface of the porous background. This embodiment is achieved by the network of the natural fibrous matter formed on top of the holes in the porous background. Porous acoustic coating can thus be prepared without binders by utilizing particles of different size scales, for example by combining cellulosic fibres with micro-fibrillated or nano-fibrillated cellulose.
  • One embodiment of the present invention is an acoustic structure comprising a modular ceiling structure having panels attached into a grid structure/system, onto which a natural fibrous acoustic coating is sprayed without any preparatory ground work for providing a seamless ceiling structure. It is preferred that a grid gap between the panels is preferably less than 10 mm, more preferably less than 5 mm.
  • Such grid structure/system may be either rigid or flexible and made from any material, comprises hangers that are preferably adjustable, and may be used to form ceiling structures of any shape.
  • the grid structure/system can be either visible or hidden grip.
  • the natural fibrous acoustic coating seamlessly covers the panels, the grid structure/system and at least partially fills the grid gaps between the panels.
  • the panels attached, installed or assembled into the grid structure/system can be for example mineral wool-based panels with sanded, fleece or pre-coated surface, perforated gypsum panels comprising holes, non-acoustic panels such as non-perforated gypsum panels for producing partially reflecting fields and solid panels made from any material for installation of various accessories, whereby the panels may have various functionalities such as cooling systems, audio systems and maintenance hatches, which can be seamlessly integrated into the structure. It is also possible to use primers and/or commonly used surface-energy modifying techniques and additives.
  • the panels need to be mounted to the grid structure/system with clips, or glue or such for ensuring firm mounting of the panels for withstanding spraying pressure of the natural fibrous acoustic coating.
  • the clips can be made of any material and be of any shape and size.
  • the modular background structure consists of mineral wool-based panels, without grid structure/system, glued to a wall.
  • the natural acoustic fibrous matter is sprayed onto the panels similarly as in other embodiments described herein for at least partially filling the gaps between the panels and thus providing a seamless acoustic wall structure.
  • One aspect of the present invention is that because of the fibre network on top of the surface of the modular background structure, the surface can be made plain and hide the structure beneath it.
  • the modular background structure does not need to be pre-handled, such as taped, putted and sanded before applying the acoustic coating, which reduces the process steps and costs as well as provides easier yet effective acoustic solutions.
  • the present invention also provides material savings for example in binder and seaming materials.
  • the acoustic structures and/or coatings according to the present invention are able to bind about 1,2 kg of CO 2 per m 2 from the atmosphere.
  • the present invention is applicable to for example ceilings and other kinds of structures comprising modular background structures in for example buildings, providing seamless acoustic solutions mainly to the inner acoustic needs of the space formed by such structures.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP20215545.3A 2020-12-18 2020-12-18 Sprühbare lärmschutzbeschichtung auf einer modularen struktur Pending EP4015728A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20215545.3A EP4015728A1 (de) 2020-12-18 2020-12-18 Sprühbare lärmschutzbeschichtung auf einer modularen struktur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20215545.3A EP4015728A1 (de) 2020-12-18 2020-12-18 Sprühbare lärmschutzbeschichtung auf einer modularen struktur

Publications (1)

Publication Number Publication Date
EP4015728A1 true EP4015728A1 (de) 2022-06-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20215545.3A Pending EP4015728A1 (de) 2020-12-18 2020-12-18 Sprühbare lärmschutzbeschichtung auf einer modularen struktur

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EP (1) EP4015728A1 (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044919A (en) 1957-05-16 1962-07-17 Owens Corning Fiberglass Corp Method of applying facing material to a wall surface
CA2126056A1 (en) 1994-06-16 1994-10-27 Michel Zielinski Acoustical ceiling panels
CA2126059A1 (en) 1993-06-17 1994-12-18 Thomas R. Kruer In-ground sprinkler used with above ground hose
FI95041C (fi) 1993-01-27 1995-12-11 Tampio Anna Liisa Pinnoiteseos ja menetelmä sen valmistamiseksi
US20060053721A1 (en) * 2004-08-11 2006-03-16 Preferred Solutions Inc. Coated ceiling structure and method of forming
WO2007063178A1 (en) 2005-12-02 2007-06-07 Hirvi, Antti Coating mixture and method for its preparation
US20140124291A1 (en) * 2012-06-27 2014-05-08 Usg Interiors, Llc Gypsum-panel acoustical monolithic ceiling
US20180251976A1 (en) 2015-09-11 2018-09-06 Rockwool International A/S Acoustic panel
US20200002942A1 (en) 2016-06-30 2020-01-02 Turf Design, Inc. Apparatus and system for dynamic acoustic drop ceiling system and methods thereof
EP3683373A1 (de) * 2019-01-18 2020-07-22 Lumir Oy Verwendung von porösen baustoffen zur schallabsorption

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044919A (en) 1957-05-16 1962-07-17 Owens Corning Fiberglass Corp Method of applying facing material to a wall surface
FI95041C (fi) 1993-01-27 1995-12-11 Tampio Anna Liisa Pinnoiteseos ja menetelmä sen valmistamiseksi
CA2126059A1 (en) 1993-06-17 1994-12-18 Thomas R. Kruer In-ground sprinkler used with above ground hose
CA2126056A1 (en) 1994-06-16 1994-10-27 Michel Zielinski Acoustical ceiling panels
US20060053721A1 (en) * 2004-08-11 2006-03-16 Preferred Solutions Inc. Coated ceiling structure and method of forming
WO2007063178A1 (en) 2005-12-02 2007-06-07 Hirvi, Antti Coating mixture and method for its preparation
US20140124291A1 (en) * 2012-06-27 2014-05-08 Usg Interiors, Llc Gypsum-panel acoustical monolithic ceiling
US20180251976A1 (en) 2015-09-11 2018-09-06 Rockwool International A/S Acoustic panel
US20200002942A1 (en) 2016-06-30 2020-01-02 Turf Design, Inc. Apparatus and system for dynamic acoustic drop ceiling system and methods thereof
EP3683373A1 (de) * 2019-01-18 2020-07-22 Lumir Oy Verwendung von porösen baustoffen zur schallabsorption

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