EP3402664A1 - Acoustic plasterboard - Google Patents

Acoustic plasterboard

Info

Publication number
EP3402664A1
EP3402664A1 EP17702427.0A EP17702427A EP3402664A1 EP 3402664 A1 EP3402664 A1 EP 3402664A1 EP 17702427 A EP17702427 A EP 17702427A EP 3402664 A1 EP3402664 A1 EP 3402664A1
Authority
EP
European Patent Office
Prior art keywords
fibers
plate according
meth
textile
thermoplastic polymer
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.)
Withdrawn
Application number
EP17702427.0A
Other languages
German (de)
French (fr)
Inventor
Katarzyna Chuda
Caroline DEMATHIEU-ROELTGEN
Véronique CHOPIN
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.)
Saint Gobain Placo SAS
Original Assignee
Saint Gobain Placo SAS
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 Saint Gobain Placo SAS filed Critical Saint Gobain Placo SAS
Publication of EP3402664A1 publication Critical patent/EP3402664A1/en
Withdrawn legal-status Critical Current

Links

Classifications

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    • B32B13/02—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
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    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/08—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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    • B32B2607/00—Walls, panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered

Definitions

  • the textile may contain up to 30% by weight of fibers based on a non-thermoplastic polymer, in particular unmodified cellulosic fibers such as cotton or wood fibers, or chemically modified such as viscose fibers or rayon.
  • the fibers may also be glass fibers in the form of unit filaments having a diameter ranging from 5 to 30 ⁇ m, yarns comprising a plurality of these glass filaments (base yarn) or an assembly of several base yarn (rovings or roving).
  • the linear density of the glass strands varies from 30 to 1500 tex.
  • thermoplastic polymer fibers and optionally the other non-thermoplastic polymer or glass fibers are bonded together in conventional manner, for example by mechanical treatment, in particular by needling or jet coating. air, or by a heat treatment, especially by "spun bonding" which consists of binding the fibers by heat immediately after being spun or extruded.
  • an adhesion agent whose function is to increase the adhesion of the coating when the latter is made of paper or cardboard with the plaster, preferably at most 15 parts, - 0.001 to 10 parts of a setting accelerator, for example calcium sulphate hydrate or potassium sulphate,
  • Another subject of the present invention relates to the use of a textile as described above containing thermoplastic polymer fibers to improve the acoustic properties, in particular the acoustic insulation properties, of a plasterboard comprising a plaster core disposed between two layers of coating, wherein said textile forms the coating layer (s) and / or is embedded in the plaster core.
  • the present invention also relates to a method for improving the acoustic properties of a gypsum-based board comprising providing a textile as described above containing thermoplastic polymer fibers, and incorporating said textile into the gypsum board, the latter constituting a layer coating and / or being embedded in the plaster core.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Nonwoven Fabrics (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

The present invention relates to a plasterboard comprising a plaster core arranged between two covering layers; a textile containing thermoplastic polymer fibres makes up at least one of the covering layers and/or said textile is embedded in the plaster constituting the core.

Description

PLAQUE ACOUSTIQUE A BASE DE PLATRE  ACOUSTIC PLATE BASED ON PLASTER

L'invention se rapporte à une plaque à base de plâtre dotée de propriétés acoustiques. Une telle plaque peut être utilisée notamment pour la réalisation d'un parement mural, de plafond ou de plancher, et d'une cloison de séparation. The invention relates to a gypsum board with acoustic properties. Such a plate can be used in particular for the realization of a wall facing, ceiling or floor, and a partition wall.

Les plaques à base de plâtre sont généralement des plaques composites comprenant une âme en plâtre disposée entre deux couches de revêtement en papier ou en carton. Ces plaques possèdent des propriétés mécaniques qui répondent aux normes en vigueur, en particulier une bonne résistance à la flexion sous charge.  The gypsum boards are generally composite boards comprising a plaster core disposed between two layers of paper or cardboard cover. These plates have mechanical properties that meet the standards in force, in particular good resistance to flexing under load.

Les plaques à base de plâtre en tant que telles ne présentent pas de performances acoustiques particulières. Lorsqu'on souhaite améliorer ces performances, il est connu d'associer à ladite plaque un matériau isolant phonique tel qu'une laine de verre ou de roche ou un polymère, pour former un produit composite. Ce produit composite peut être maintenu en place au moyen de profilés, d'une colle, de vis ou de chevilles selon l'usage visé.  Plaster-based plates as such do not exhibit particular acoustic performance. When it is desired to improve these performances, it is known to associate with said plate a sound insulating material such as a glass wool or rock or a polymer, to form a composite product. This composite product can be held in place by means of profiles, glue, screws or dowels depending on the intended use.

Les plaques à base de plâtre les plus usuelles ont une épaisseur moyenne de 12,5 mm et sont commercialisées généralement sous la dénomination « BA 13 ». Ces plaques présentent une masse surfacique de l'ordre de 9 kg/m2. Il est certes bien connu que l'on peut améliorer les performances acoustiques d'une plaque en augmentant sa masse surfacique, par exemple jusqu'à 12 kg/m2, sans modifier son épaisseur, mais cela se traduit nécessairement par une augmentation de la quantité de plâtre dans la plaque. The most common gypsum boards have an average thickness of 12.5 mm and are generally marketed under the name "BA 13". These plates have a surface density of the order of 9 kg / m 2 . It is certainly well known that the acoustic performance of a plate can be improved by increasing its surface density, for example up to 12 kg / m 2 , without modifying its thickness, but this necessarily results in an increase in the amount of plaster in the plate.

De ce fait, le coût de la plaque est plus élevé.  As a result, the cost of the plate is higher.

La pose d'une plaque de masse surfacique plus élevée présente aussi des inconvénients : à cause de l'augmentation du poids, la manipulation de la plaque est plus délicate et éprouvante, et aussi du fait que la plaque est plus dense, il est plus difficile de la transpercer quand la fixation au support est effectuée à l'aide de vis. Ces inconvénients deviennent majeurs quand la plaque doit être fixée en hauteur, par exemple sur un plafond ou pour réaliser une cloison. The installation of a higher weight-density plate also has drawbacks: because of the increase in weight, the handling of the plate is more delicate and demanding, and also because the plate is denser, it is more difficult to pierce it when fixing to the support is done with screws. These disadvantages become major when the plate must be fixed in height, for example on a ceiling or to make a partition.

La présente invention a pour but de fournir une plaque à base de plâtre qui présente des propriétés acoustiques améliorées, tout en conservant de bonnes propriétés mécaniques.  The object of the present invention is to provide a gypsum board having improved acoustical properties while maintaining good mechanical properties.

Ce but est atteint selon l'invention en remplaçant l'une au moins des couches de revêtement en papier ou en carton de la plaque à base de plâtre par un textile comprenant des fibres de polymère thermoplastique et/ou en incorporant ledit textile dans l'âme en plâtre.  This object is achieved according to the invention by replacing at least one of the layers of paper or cardboard coating of the plasterboard with a textile comprising thermoplastic polymer fibers and / or incorporating said textile into the plaster soul.

La plaque à base de plâtre comprend ainsi un textile renfermant des fibres d'un polymère thermoplastique qui constitue la ou les couches de revêtement de l'âme en plâtre et/ou qui est noyé dans le plâtre constituant l'âme.  The gypsum board thus comprises a textile containing fibers of a thermoplastic polymer which constitutes the coating layer or layers of the plaster core and / or which is embedded in the plaster constituting the core.

Par « textile », on entend un non-tissé (aussi dénommé « intissé »), notamment se présentant sous la forme d'un voile ou d'un mat, ou un tissu.  By "textile" is meant a non-woven fabric (also referred to as "non-woven"), especially in the form of a veil or a mat, or a fabric.

Le textile conforme à l'invention renferme au moins 70 % en poids de fibres constituées d'au moins un polymère thermoplastique.  The textile according to the invention contains at least 70% by weight of fibers consisting of at least one thermoplastic polymer.

A titre d'exemples de tels polymères thermoplastiques, on peut citer les polyoléfines telles que le polyéthylène, le polypropylène, le polybutène-1 et le polyméthylpentène; les polyamides sous forme d'homopolymères ou de copolymères tels que les Nylon® 6-6, 6-9, 6-12, 10, 1 1 et 12, et le polyamide- imide; les homopolymères et les copolymères d'acrylonitrile, notamment l'acrylonitrile-styrène, l'acrylonitrile-méthacrylate de méthyle, l'acrylonitrile- butadiène-styrène et l'acrylonitrile-styrène-acrylate; les polyimides; les polyesters tels que les poly(alkylène téréphtalate), notamment le polytéréphtalate d'éthylène (PET) et le polytéréphtalate de butylène (PBT), et les poly(alkylène naphtalate), notamment le polynaphtalate d'éthylène; les poly(acide lactique); les polyhydroxyalcanoates; les polymères vinyliques tels que le poly(alcool vinylique), le poly(acétate de vinyle), le poly(chlorure de vinyle) et le poly(fluorure de vinyle); les copolymères d'éthylène et d'un composé vinylique, notamment d'éthylène et d'acétate de vinyle (EVA) et d'éthylène et d'alcool vinylique (EVAL); les polymères d'acide (méth)acrylique tels que les poly(acide (méth)acrylique) et les copolymères d'éthylène et d'acide (méth)acrylique; les polymères de (méth)acrylate d'alkyle, notamment le polyméthacrylate de méthyle; les polycaprolactones ; les polystyrènes; les polymères de styrène et d'un anhydride, notamment d'anhydride maléique; les copolymères d'une oléfine et d'un monomère fluoré, notamment le poly(tétrafluoroéthylène), le poly(éthylène tétrafluoroéthylène), le perfluoroéthylène propylène et le poly(chlorotrifluoroéthylène); les polycarbonates; les polycétones; les polyéthercétones; les polyéthersulfones; les polyimides; et les polyuréthanes linéaires. Le polypropylène, les polymères d'acide (méth)acrylique ou de (méth)acrylate, les poly(acide lactique), les polyhydroxyalcanoates, le PET, le PBT et le polynaphtalate d'éthylène sont préférés. Le polypropylène, les polymères d'acide (méth)acrylique ou de (méth)acrylate et le PET sont particulièrement préférés. By way of examples of such thermoplastic polymers, mention may be made of polyolefins such as polyethylene, polypropylene, polybutene-1 and polymethylpentene; polyamides as homopolymers or copolymers such as Nylon ® 6-6, 6-9, 6-12, 10: 1 1 and 12, and polyamideimide; homopolymers and copolymers of acrylonitrile, especially acrylonitrile-styrene, acrylonitrile-methyl methacrylate, acrylonitrile-butadiene-styrene and acrylonitrile-styrene-acrylate; polyimides; polyesters such as poly (alkylene terephthalate), especially polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), and poly (alkylene naphthalate), especially ethylene polynaphthalate; poly (lactic acid); polyhydroxyalkanoates; vinyl polymers such as polyvinyl alcohol, polyvinyl acetate, polyvinyl chloride and polyvinyl fluoride; copolymers of ethylene and a vinyl compound, especially ethylene and vinyl acetate (EVA) and ethylene and vinyl alcohol (EVAL); (meth) acrylic acid polymers such as poly (acid (meth) acrylic) and copolymers of ethylene and acid (Meth) acrylic acid; alkyl (meth) acrylate polymers, especially polymethyl methacrylate; polycaprolactones; polystyrenes; polymers of styrene and an anhydride, in particular maleic anhydride; copolymers of an olefin and a fluorinated monomer, especially poly (tetrafluoroethylene), poly (ethylene tetrafluoroethylene), perfluoroethylenepropylene and poly (chlorotrifluoroethylene); polycarbonates; polyketones; polyetherketones; polyethersulfones; polyimides; and linear polyurethanes. Polypropylene, (meth) acrylic acid or (meth) acrylate polymers, poly (lactic acid), polyhydroxyalkanoates, PET, PBT and ethylene polynaphthalate are preferred. Polypropylene, polymers of (meth) acrylic acid or (meth) acrylate and PET are particularly preferred.

De manière avantageuse, le textile renferme un mélange d'au moins deux fibres de polymère thermoplastique différentes, en particulier un mélange de fibres de polypropylène et de fibres de polymère d'acide (méth)acrylique ou de (méth)acrylate, ou de fibres de polypropylène et de fibres de PET. Dans ce cas, la quantité de fibres de polypropylène représente 10 à 90 % de la masse totale des fibres de polymère thermoplastique, de préférence est au moins égale à 50 %, et avantageusement est au moins égale à 70 %.  Advantageously, the textile contains a mixture of at least two different thermoplastic polymer fibers, in particular a mixture of polypropylene fibers and (meth) acrylic acid or (meth) acrylate polymer fibers, or fibers polypropylene and PET fibers. In this case, the amount of polypropylene fibers represents 10 to 90% of the total mass of the thermoplastic polymer fibers, preferably is at least 50%, and advantageously is at least 70%.

Les fibres de polymère thermoplastique peuvent être des fibres monofilament ou des fibres multi-filaments constituées de plusieurs mono-filaments. Les fibres sont continues dans le cas d'un tissu et peuvent être continues ou coupées dans le cas d'un non-tissé.  The thermoplastic polymer fibers may be monofilament fibers or multi-filament fibers consisting of several mono-filaments. The fibers are continuous in the case of a fabric and may be continuous or cut in the case of a nonwoven.

Ces fibres présentent une masse linéique qui varie généralement de 1 à 25 dtex, de préférence de 3 à 15 dtex, et avantageusement de 5 à 12 dtex. La longueur des fibres coupées varie de 0,5 à 15 cm, de préférence de 1 à 10 cm et avantageusement de 2 à 8 cm.  These fibers have a linear density which generally varies from 1 to 25 dtex, preferably from 3 to 15 dtex, and advantageously from 5 to 12 dtex. The length of the cut fibers varies from 0.5 to 15 cm, preferably from 1 to 10 cm and advantageously from 2 to 8 cm.

Les fibres de polymère thermoplastique peuvent avoir une section simple ou multilobée, avantageusement trilobée, tétralobée ou pentalobée. Les lobes peuvent présenter une forme arrondie ou comporter des arêtes. La forme des lobes peut être complexe, par exemple en forme de T ou de Y, et chaque lobe peut présenter plusieurs ramifications. Il est connu de définir pour des fibres multilobées un rapport de modification qui correspond au rapport du diamètre (R) du cercle circonscrit de la section des fibres au diamètre (r) du cercle inscrit. Ce rapport R/r est de préférence compris entre 2 et 7, et avantageusement entre 3 et 6. The thermoplastic polymer fibers may have a single or multilobal section, advantageously trilobal, tetralobed or pentalobed. The lobes may have a rounded shape or have ridges. The shape of the lobes may be complex, for example in the form of T or Y, and each lobe may have several branches. It is known to define, for multilobal fibers, a modification ratio which corresponds to the ratio of the diameter (R) of the circumscribed circle of the section of the fibers to the diameter (r) of the inscribed circle. This ratio R / r is preferably between 2 and 7, and advantageously between 3 and 6.

Les fibres multilobées sont avantageusement des fibres de polypropylène, de PET ou de Nylon®. The multilobal fibers are advantageously polypropylene, PET or nylon ® fibers.

De telles fibres multilobées sont décrites notamment dans EP 0 201 812 et EP 2 272 999.  Such multilobal fibers are described in particular in EP 0 201 812 and EP 2 272 999.

Le textile peut renfermer jusqu'à 30 % en poids de fibres à base d'un polymère non thermoplastique, en particulier des fibres cellulosiques non modifiées telles que les fibres de coton ou de bois, ou modifiées chimiquement telles que des fibres de viscose ou de rayonne. Les fibres peuvent encore être des fibres de verre se présentant sous la forme de filaments unitaires ayant un diamètre qui varie de 5 à 30 μιτι, de fils comprenant une pluralité de ces filaments de verre (fil de base) ou d'un assemblage de plusieurs fils de base (stratifils ou « roving »). La masse linéique des fils de verre varie de 30 à 1500 tex.  The textile may contain up to 30% by weight of fibers based on a non-thermoplastic polymer, in particular unmodified cellulosic fibers such as cotton or wood fibers, or chemically modified such as viscose fibers or rayon. The fibers may also be glass fibers in the form of unit filaments having a diameter ranging from 5 to 30 μm, yarns comprising a plurality of these glass filaments (base yarn) or an assembly of several base yarn (rovings or roving). The linear density of the glass strands varies from 30 to 1500 tex.

Lorsque le textile est un non-tissé, les fibres de polymère thermoplastique et éventuellement les autres fibres à base d'un polymère non thermoplastique ou de verre sont liées entre elles de manière conventionnelle par exemple par un traitement mécanique, notamment par aiguilletage ou jet d'air, ou par un traitement thermique, notamment par « spun bonding » qui consiste à lier les fibres par la chaleur immédiatement après avoir été filées ou extrudées.  When the textile is a nonwoven fabric, the thermoplastic polymer fibers and optionally the other non-thermoplastic polymer or glass fibers are bonded together in conventional manner, for example by mechanical treatment, in particular by needling or jet coating. air, or by a heat treatment, especially by "spun bonding" which consists of binding the fibers by heat immediately after being spun or extruded.

II est possible de consolider le textile lié mécaniquement ou thermiquement en utilisant un liant aqueux qui contient au moins un polymère choisi parmi les copolymères d'une oléfine telle que l'éthylène, le propylène, le butylène ou l'isobutylène et d'acétate de vinyle, les copolymères d'acétate de vinyle et d'acide (méth)acrylique ou d'acrylate, les copolymères de (méth)acrylate et d'un monomère autre que l'acétate de vinyle, en particulier le styrène, les homopolymères d'acide (méth)acrylique ou d'acrylate, les terpolymères d'acétate de vinyle, d'une oléfine et d'un monomère d'ester vinylique, et les polymères d'acrylonitrile, notamment les copolymères d'acrylonitrile et de (méth)acrylate, en particulier d'acrylonitrile et de méthacrylate de méthyle, et les terpolymères d'acrylonitrile, de butadiène et de styrène. Les copolymères de (méth)acrylate et de styrène sont préférés, en particulier les copolymères d'acrylate de butyle et de styrène. It is possible to consolidate the mechanically or thermally bonded textile by using an aqueous binder which contains at least one polymer selected from copolymers of an olefin such as ethylene, propylene, butylene or isobutylene and vinyl, copolymers of vinyl acetate and (meth) acrylic acid or acrylate, copolymers of (meth) acrylate and a monomer other than vinyl acetate, in particular styrene, homopolymers of (meth) acrylic acid or acrylate, terpolymers of vinyl acetate, an olefin and a vinyl ester monomer, and acrylonitrile polymers, especially copolymers acrylonitrile and (meth) acrylate, in particular acrylonitrile and methyl methacrylate, and terpolymers of acrylonitrile, butadiene and styrene. The copolymers of (meth) acrylate and styrene are preferred, in particular copolymers of butyl acrylate and styrene.

De manière avantageuse, la température de transition vitreuse (Tg) des polymères entrant dans la constitution du liant varie de -50 à +80°C, de préférence de -40 à +60°C, avantageusement de -10 à +25°C et mieux encore de 0 à +10°C, mesurée par analyse calorimétrique différentielle selon la norme ISO 1 1357-1 :2009.  Advantageously, the glass transition temperature (Tg) of the polymers used in the constitution of the binder varies from -50 to + 80 ° C., preferably from -40 to + 60 ° C., advantageously from -10 to + 25 ° C. and more preferably from 0 to + 10 ° C, measured by differential scanning calorimetry according to ISO 1 1357-1: 2009.

L'application du liant sur le textile peut se faire par tout moyen connu de l'homme du métier, par exemple par pulvérisation, imprégnation ou enduction.  The application of the binder to the textile can be done by any means known to those skilled in the art, for example by spraying, impregnation or coating.

Le textile présente généralement une masse surfacique qui varie de 50 à 800 g/m2, de préférence 60 à 500 g/m2 et avantageusement 80 à 300 g/m2. The textile generally has a basis weight which varies from 50 to 800 g / m 2 , preferably 60 to 500 g / m 2 and advantageously 80 to 300 g / m 2 .

Le textile peut être constitué de plusieurs textiles identiques ou différents liés ensemble par un traitement mécanique ou thermique, et l'assemblage de ces textiles peut être consolidé au moyen d'un liant aqueux, comme cela est décrit plus haut.  The textile may consist of several identical or different textiles bonded together by a mechanical or thermal treatment, and the assembly of these textiles can be consolidated by means of an aqueous binder, as described above.

L'âme de la plaque est obtenue à partir d'une composition à base de plâtre qui comprend du gypse calciné et d'éventuels additifs.  The core of the plate is obtained from a plaster-based composition which comprises calcined gypsum and any additives.

L'âme peut ainsi comprendre les additifs suivants dans les proportions pondérales suivantes, exprimées en parts pour 100 parts en poids de plâtre :  The core can thus comprise the following additives in the following proportions by weight, expressed in parts per 100 parts by weight of plaster:

- 0,1 à 25 parts d'un agent d'adhésion dont la fonction est d'augmenter l'adhésion du revêtement lorsque ce dernier est en papier ou en carton avec le plâtre, de préférence au plus 15 parts,- 0,001 à 10 parts d'un accélérateur de prise, par exemple le sulfate de calcium hydraté ou le sulfate de potassium, 0.1 to 25 parts of an adhesion agent whose function is to increase the adhesion of the coating when the latter is made of paper or cardboard with the plaster, preferably at most 15 parts, - 0.001 to 10 parts of a setting accelerator, for example calcium sulphate hydrate or potassium sulphate,

- 0,001 à 10 parts d'un retardateur de prise, - 0.001 to 10 parts of a retarder,

- 0 à 10 parts d'un biocide, par exemple le sodium omadine,  0 to 10 parts of a biocide, for example sodium omadine,

- 0,0001 à 1 part d'un agent moussant qui a pour rôle de créer des pores afin de diminuer la densité du produit final. A titre d'exemple, on peut citer les alkyléthers sulfate de sodium et le laurylsulfate de sodium,  - 0.0001 to 1 part of a foaming agent whose role is to create pores to reduce the density of the final product. By way of example, mention may be made of sodium alkyl ether sulphate and sodium lauryl sulphate,

- 0 à 10 parts d'au moins un agent hydrofugeant, par exemple un siloxane ou un polysiloxane, - 0 à 20 parts d'au moins un agent anti-feu, par exemple la vermiculite, la silice, notamment de dimension micrométrique, une argile ou des fibres métalliques, 0 to 10 parts of at least one water-repellent agent, for example a siloxane or a polysiloxane, 0 to 20 parts of at least one anti-fire agent, for example vermiculite, silica, in particular of micrometric size, a clay or metal fibers,

- 0 à 20 parts d'au moins un agent de renforcement, par exemple des fibres de polymère, des fibres minérales, notamment en verre, et des fibres animales ou végétales.  0 to 20 parts of at least one reinforcing agent, for example polymer fibers, mineral fibers, in particular glass fibers, and animal or vegetable fibers.

De préférence, l'agent d'adhésion est un amidon, notamment préalablement traité avec un acide, une dextrine, une farine végétale, notamment de blé ou de maïs, un dérivé de cellulose, par exemple une méthylcellulose ou une hydroxyméthylcellulose, un polymère vinylique, par exemple un polyalcool vinylique, un polyacétate de vinyle ou un copolymère éthylène-acétate de vinyle, un polymère d'acide (méth)acrylique ou de (méth)acrylate d'alkyle, par exemple un polyméthacrylate de méthyle, une polyvinylpyrrolidone notamment réticulée par un polystyrènesulfonate, un latex styrène-butadiène, une résine polyester ou une résine epoxy.  Preferably, the adhesion agent is a starch, in particular pretreated with an acid, a dextrin, a vegetable meal, in particular wheat or maize, a cellulose derivative, for example a methylcellulose or a hydroxymethylcellulose, a vinyl polymer for example a polyvinyl alcohol, a polyvinyl acetate or an ethylene-vinyl acetate copolymer, a polymer of (meth) acrylic acid or alkyl (meth) acrylate, for example a polymethyl methacrylate, a polyvinylpyrrolidone in particular crosslinked by a polystyrene sulfonate, a styrene-butadiene latex, a polyester resin or an epoxy resin.

De préférence encore, l'agent de renforcement est constitué d'au plus 5 parts de fibres de verre ayant une longueur variant de 3 à 12,5 mm et un diamètre variant de 5 à 50 μιτι, de préférence au plus 3 parts.  More preferably, the reinforcing agent consists of at most 5 parts of glass fibers having a length ranging from 3 to 12.5 mm and a diameter ranging from 5 to 50 μιτι, preferably at most 3 parts.

La plaque à base de plâtre est formée selon un procédé connu en soi qui consiste à mélanger du gypse calciné en poudre (hémihydrate de sulfate de calcium) avec de l'eau pour former une pâte qui est déposée en continu entre deux feuilles de papier ou de carton.  The gypsum board is formed by a method known per se which consists of mixing calcined gypsum powder (calcium sulfate hemihydrate) with water to form a paste which is continuously deposited between two sheets of paper or of cardboard.

Le produit formé est pressé pour obtenir l'épaisseur désirée, puis il est transporté en continu sur un convoyeur sur une distance permettant à la pâte d'atteindre un niveau de durcissement suffisant pour pouvoir être découpé en plaques de longueur déterminée. Les plaques sont ensuite séchées dans une étuve afin d'éliminer l'excès d'eau.  The formed product is pressed to obtain the desired thickness, and is then conveyed continuously on a conveyor over a distance allowing the dough to reach a level of hardening sufficient to be able to be cut into plates of determined length. The plates are then dried in an oven to remove excess water.

L'épaisseur de la plaque ainsi obtenue peut varier de 6 à 25 millimètres, et de préférence est de l'ordre de 12,5 millimètres.  The thickness of the plate thus obtained may vary from 6 to 25 millimeters, and preferably is of the order of 12.5 millimeters.

Classiquement, l'hémihydrate de sulfate de calcium (CaSO4.0,5 H2O ; gypse calciné), qu'il soit naturel ou synthétique, c'est-à-dire issu notamment de la désulfuration des gaz de centrales thermiques, subit une réaction d'hydratation en présence d'eau et se transforme en dihydrate de sulfate de calcium (CaSO4.2 H2O : gypse). Conventionally, calcium sulfate hemihydrate (CaSO 4 .0.5 H 2 O calcined gypsum), whether natural or synthetic, that is to say derived from the desulphurization of gases from thermal power plants, undergoes a reaction hydration in the presence of water and is converted into calcium sulfate dihydrate (CaSO 4 .2 H 2 O: gypsum).

La quantité de gypse calciné mis en œuvre pour former la pâte varie généralement de 50 à 150 parts en poids pour 100 parts en poids d'eau et de préférence de 60 à 120 parts.  The amount of calcined gypsum used to form the dough generally varies from 50 to 150 parts by weight per 100 parts by weight of water and preferably from 60 to 120 parts.

Comme indiqué précédemment, le textile conforme à l'invention remplace l'une au moins des couches de revêtement en papier ou en carton revêtant les faces principales de la plaque à base de plâtre, et/ou ledit textile est incorporé dans l'âme en plâtre.  As indicated above, the textile according to the invention replaces at least one of the coating layers of paper or cardboard coating the main faces of the plasterboard, and / or said textile is incorporated into the core. plaster.

Selon une première variante, la plaque à base de plâtre comprend un textile qui est disposé sur l'une des faces principales de l'âme en plâtre ou est noyé dans le plâtre.  According to a first variant, the plasterboard comprises a textile which is disposed on one of the main faces of the plaster core or is embedded in the plaster.

Selon une deuxième variante, la plaque à base de plâtre comprend deux textiles disposés sur les deux faces principales de l'âme en plâtre, ou un textile sur une de ces faces et l'autre noyé dans le plâtre.  According to a second variant, the plaster-based plate comprises two textiles arranged on the two main faces of the plaster core, or a textile on one of these faces and the other embedded in the plaster.

Selon une troisième variante, la plaque à base de plâtre comprend deux textiles disposés sur les deux faces principales de l'âme en plâtre et un troisième textile noyé dans le plâtre.  According to a third variant, the plaster-based plate comprises two textiles arranged on the two main faces of the plaster core and a third textile embedded in the plaster.

Dans toutes les variantes précitées, le textile incorporé dans l'âme de la plaque est disposé parallèlement aux couches de papier, de carton ou de textile qui revêtent les faces principales de l'âme, et de préférence le textile se situe à égale distance des deux couches de revêtement.  In all the aforementioned variants, the textile incorporated in the core of the plate is arranged parallel to the layers of paper, cardboard or textile which cover the main faces of the core, and preferably the textile is located at an equal distance from the two layers of coating.

On ne saurait toutefois exclure de l'invention l'incorporation de plusieurs textiles identiques ou différents dans l'âme de plâtre, ces textiles pouvant être répartis dans l'épaisseur du plâtre de manière uniforme ou non, et notamment pouvant être juxtaposés.  However, it can not be excluded from the invention the incorporation of several identical or different textiles in the plaster core, these textiles can be distributed in the thickness of the plaster uniformly or not, and in particular can be juxtaposed.

Un autre objet de la présente invention concerne l'utilisation d'un textile tel que décrit ci-dessus renfermant des fibres de polymère thermoplastique pour améliorer les propriétés acoustiques, notamment les propriétés d'isolation acoustique, d'une plaque à base de plâtre comprenant une âme en plâtre disposée entre deux couches de revêtement, dans laquelle ledit textile constitue la ou les couches de revêtement et/ou est noyé dans l'âme en plâtre. La présente invention concerne également un procédé pour améliorer les propriétés acoustiques d'une plaque à base de plâtre comprenant la fourniture d'un textile tel que décrit ci-dessus renfermant des fibres de polymère thermoplastique, et l'incorporation dudit textile dans la plaque à base de plâtre, celui-ci constituant une couche de revêtement et/ou étant noyé dans l'âme en plâtre. Another subject of the present invention relates to the use of a textile as described above containing thermoplastic polymer fibers to improve the acoustic properties, in particular the acoustic insulation properties, of a plasterboard comprising a plaster core disposed between two layers of coating, wherein said textile forms the coating layer (s) and / or is embedded in the plaster core. The present invention also relates to a method for improving the acoustic properties of a gypsum-based board comprising providing a textile as described above containing thermoplastic polymer fibers, and incorporating said textile into the gypsum board, the latter constituting a layer coating and / or being embedded in the plaster core.

Un autre objet de la présente invention concerne l'utilisation d'une plaque à base de plâtre conforme à l'invention pour améliorer l'isolation acoustique dans un bâtiment. La présente invention concerne également un procédé pour améliorer l'insolation acoustique dans un bâtiment comprenant l'installation d'une plaque à base de plâtre selon l'invention pour former des parements muraux, des faux-plafonds, des planchers et/ou des cloisons de séparation.  Another object of the present invention relates to the use of a gypsum board according to the invention for improving the sound insulation in a building. The present invention also relates to a method for improving acoustic insulation in a building comprising the installation of a gypsum board according to the invention for forming wall claddings, false ceilings, floors and / or partitions. of seperation.

La plaque à base de plâtre conforme à l'invention peut être utilisée telle quelle ou en association avec un autre matériau, par exemple une laine minérale ou de bois, ou un polymère pour former un panneau acoustique et/ou thermique, ou encore un film polymère intercalaire assurant la liaison entre deux plaques à base de plâtre pour former panneau composite.  The gypsum board according to the invention can be used as such or in combination with another material, for example a mineral or wood wool, or a polymer to form an acoustic and / or thermal panel, or a film interlayer polymer providing the connection between two plaster-based plates to form composite panel.

Cette plaque peut être utilisée pour former des parements muraux, des faux-plafonds, des planchers et des cloisons de séparation.  This plate can be used to form wall claddings, false ceilings, floors and partition walls.

Les exemples qui suivent permettent d'illustrer l'invention sans toutefois la limiter.  The following examples illustrate the invention without limiting it.

EXEMPLES 1 A 7  EXAMPLES 1 TO 7

On fabrique des plaques à base de plâtre comprenant un ou deux textiles conformes à l'invention dans les conditions suivantes :  Plaster-based plates comprising one or two textiles according to the invention are manufactured under the following conditions:

a) on prépare une composition de plâtre en introduisant 1000 g d'hémihydrate de sulfate de calcium, 5 g d'amidon, 0,1 g d'un accélérateur de prise (gypse traité par du saccharose), 0,05 g d'un retardateur de prise (Plast Retard L commercialisé par SICIT 2000) et 750 g d'eau dans un mélangeur muni d'une tripale à la vitesse de 650 RPM pendant 15 secondes puis 1850 RPM pendant 45 secondes.  a) a plaster composition is prepared by introducing 1000 g of calcium sulfate hemihydrate, 5 g of starch, 0.1 g of a setting accelerator (gypsum treated with sucrose), 0.05 g of a retarding agent (Plast Retard L marketed by SICIT 2000) and 750 g of water in a blender equipped with a three-blast at 650 RPM for 15 seconds then 1850 RPM for 45 seconds.

b) on prépare une mousse en introduisant 138,5 g d'eau et 1 ,4 g d'agent moussant (Milifoam® commercialisé par Huntsman) dans un mélangeur muni d'une tripale à la vitesse de 3300 RPM pendant 1 minute. c) on introduit la composition de plâtre obtenue à l'étape a) et 30 g de mousse obtenue à l'étape b) dans un mélangeur muni d'une pale planétaire opérant à la vitesse de 250 PM pendant 50 secondes afin d'obtenir une pâte. d) on verse la pâte dans un moule en laiton comportant 4 cavités parallélépipédiques (longueur : 300 mm ; largeur : 30 mm ; profondeur : 13 mm) dont les parois internes sont enduites d'une couche d'huile et le fond est revêtu d'une feuille de carton ou du textile selon l'invention. b) a foam is prepared by introducing 138.5 g of water and 1.4 g of foaming agent (Milifoam® marketed by Huntsman) in a blender equipped with a three-blast at a speed of 3300 RPM for 1 minute. c) introducing the gypsum composition obtained in step a) and 30 g of foam obtained in step b) into a mixer provided with a planetary blade operating at a speed of 250 MP for 50 seconds in order to obtain a paste. d) the paste is poured into a brass mold with 4 parallelepipedic cavities (length: 300 mm, width: 30 mm, depth: 13 mm), the internal walls of which are coated with a layer of oil and the bottom is coated with a cardboard sheet or textile according to the invention.

Lorsqu'un textile conforme à l'invention est incorporé dans la pâte, on verse d'abord la pâte dans le moule sur une épaisseur de 6 mm, puis on dépose le textile découpé à la dimension du moule et on remplit le moule avec de la pâte.  When a textile according to the invention is incorporated in the dough, the dough is first poured into the mold to a thickness of 6 mm, then the cut fabric is deposited in the mold dimension and the mold is filled with dough.

On dépose une feuille de carton ou un textile à la dimension du moule sur la pâte et on ferme le moule avec une plaque sur laquelle on place deux masses de 5 kg chacune.  A sheet of cardboard or a mold-size textile is deposited on the dough and the mold is closed with a plate on which two masses of 5 kg each are placed.

Les plaques sont démoulées après 20 minutes, laissées à l'air libre pendant 10 minutes, puis placées dans une première étuve à 180°C pendant 35 minutes et dans une deuxième étuve à 100°C pendant 25 minutes. Les plaques sont conservées dans une enceinte sèche à 40°C.  The plates are demolded after 20 minutes, left in the open air for 10 minutes, then placed in a first oven at 180 ° C for 35 minutes and in a second oven at 100 ° C for 25 minutes. The plates are stored in a dry chamber at 40 ° C.

L'exemple 1 comprend sur une face de la plaque un non-tissé composé de fibres de polypropylène (80 % en poids) et de fibres de poly(acide acrylique) (20 % en poids), de masse surfacique égale à 100 g/m2 (commercialisé sous la référence Fibertex F-80 Extra par la société Fibertex Nonwoven) et sur l'autre face une feuille de carton (V5 commercialisé par la société Saint-Régis). Example 1 comprises on one side of the plate a nonwoven made of polypropylene fibers (80% by weight) and poly (acrylic acid) fibers (20% by weight), with a basis weight of 100 g / m 2 (marketed under the reference Fibertex F-80 Extra by the company Fibertex Nonwoven) and on the other side a sheet of cardboard (V5 marketed by Saint-Régis).

L'exemple 2 comprend un non-tissé (Fibertex F-80 Extra commercialisé par la société Fibertex Nonwoven) sur chaque face de la plaque.  Example 2 comprises a nonwoven (Fibertex F-80 Extra marketed by the company Fibertex Nonwoven) on each face of the plate.

L'exemple 3 comprend sur une face de la plaque un non-tissé constitué de fibres de PET multilobées (commercialisées sous la référence 4DG® par la société Fiber Innovation Technoloy) de masse surfacique égale à 50 g/m2 et sur l'autre face une feuille de carton (V5 commercialisé par la société Saint-Régis). Example 3 comprises on one face of the plate a nonwoven made of multilobed PET fibers (marketed under the reference 4DG® by the company Fiber Innovation Technoloy) with a surface weight of 50 g / m 2 and on the other facing a sheet of cardboard (V5 marketed by Saint-Régis).

L'exemple 4 comprend sur une face de la plaque un non-tissé constitué de fibres de PET multilobées (commercialisées sous la référence 4DG® par la société Fiber Innovation Technoloy) de masse surfacique égale à 150 g/m2 et sur l'autre face une feuille de carton (V5 commercialisé par la société Saint- Régis). Example 4 comprises on one face of the plate a nonwoven made of multilobed PET fibers (sold under the reference 4DG® by the company Fiber Innovation Technoloy) with a basis weight equal to 150 g / m 2 and on the other side a sheet of cardboard (V5 marketed by Saint-Régis).

L'exemple 5 comprend un non-tissé composé de fibres de polypropylène (80 % en poids) et de fibres de PET (20 % en poids) de masse surfacique égale à 100 g/m2 (commercialisé par la société Fibertex Nonwoven) dans l'âme en plâtre et une feuille de carton (V5 commercialisé par la société Saint-Régis) sur chaque face de la plaque. Example 5 comprises a nonwoven made of polypropylene fibers (80% by weight) and PET fibers (20% by weight) with a basis weight of 100 g / m 2 (marketed by the company Fibertex Nonwoven) in the plaster core and a sheet of cardboard (V5 marketed by Saint-Régis) on each face of the plate.

L'exemple 6 comprend un non-tissé composé des fibres de polypropylène (80 % en poids) et de fibres de PET (20 % en poids) et renfermant 4 à 6 % en poids de noir de carbone, de masse surfacique égale à 100 g/m2 (commercialisé par la société Fibertex Nonwoven) dans l'âme en plâtre et une feuille de carton (V5 commercialisé par la société Saint-Régis) sur chaque face de la plaque. Example 6 comprises a nonwoven made of polypropylene fibers (80% by weight) and PET fibers (20% by weight) and containing 4 to 6% by weight of carbon black, with a basis weight of 100 g / m 2 (marketed by the company Fibertex Nonwoven) in the plaster core and a sheet of cardboard (V5 sold by the company Saint-Régis) on each side of the plate.

A titre de comparaison, on a préparé dans les mêmes conditions une plaque comportant deux feuilles de carton (V5 commercialisé par la société Saint-Régis) et n'incluant aucun textile conforme à l'invention dans l'âme en plâtre (Exemple 7 comparatif).  By way of comparison, a plate having two sheets of cardboard (V5 marketed by Saint-Régis) and not including any textile according to the invention in the plaster core (Comparative Example 7) was prepared under the same conditions. ).

Les performances acoustiques des plaques sont évaluées en mesurant leur impédance mécanique MIM (« Measurement of Mechanical Impédance ») dans les conditions de la norme ISO 16940:2008(E). A partir de la courbe de la fréquence d'accélération (dB) en fonction de la fréquence (Hz), on calcule le module d'Young dynamique (en GN/m2) et le facteur de perte η (en %). On calcule aussi le gain acoustique par rapport à la plaque de l'exemple 7 (comparatif). The acoustic performance of the plates is evaluated by measuring their mechanical impedance MIM ("Measurement of Mechanical Impedance") under the conditions of ISO 16940: 2008 (E). From the curve of the acceleration frequency (dB) as a function of the frequency (Hz), the dynamic Young's modulus (in GN / m 2 ) and the loss factor η (in%) are calculated. The acoustic gain is also calculated with respect to the plate of Example 7 (comparative).

Les résultats sont donnés dans le tableau 1 .  The results are given in Table 1.

Tableau 1  Table 1

Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7  Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7

(comp.) (Comp.)

Masse surfacique (kg/m2) 9,30 9,00 10,00 9,80 9,40 9,13 9,1 1Mass per unit area (kg / m 2 ) 9.30 9.00 10.00 9.80 9.40 9.13 9.1 1

Module d'Young dynamique 2,95 2,61 3,17 2,01 0,90 2,1 1 3,58 (GN/m2) Dynamic Young's modulus 2.95 2.61 3.17 2.01 0.90 2.1 1 3.58 (GN / m 2 )

Facteur de perte η (%) 0,75 1 ,01 0,88 3,72 7,59 4,70 0,30 Loss factor η (%) 0.75 1, 01 0.88 3.72 7.59 4.70 0.30

Gain acoustique (%) 17,60 27,09 1 1 ,45 43,85 74,86 48,60 - Acoustic gain (%) 17.60 27.09 1 1, 45 43.85 74.86 48.60 -

Claims

REVENDICATIONS 1 . Plaque à base de plâtre comprenant une âme en plâtre disposée entre deux couches de revêtement, caractérisée en ce qu'elle comprend un textile renfermant des fibres de polymère thermoplastique, ledit textile constituant la ou les couches de revêtement et/ou étant noyé dans l'âme en plâtre. 1. Plaster based plate comprising a plaster core disposed between two layers of coating, characterized in that it comprises a textile containing thermoplastic polymer fibers, said textile constituting the coating layer (s) and / or being embedded in the plaster soul. 2. Plaque selon la revendication 1 , caractérisée en ce que le textile est un non-tissé ou un tissu.  2. Plate according to claim 1, characterized in that the textile is a nonwoven or a fabric. 3. Plaque selon la revendication 1 ou 2, caractérisée en ce que le textile renferme au moins 70 % en poids de fibres constituées d'au moins un polymère thermoplastique.  3. Plate according to claim 1 or 2, characterized in that the textile contains at least 70% by weight of fibers consisting of at least one thermoplastic polymer. 4. Plaque selon l'une des revendications 1 à 3, caractérisée en ce que le polymère thermoplastique est choisi parmi les polyoléfines, les polyamides, les homopolymères et les copolymères d'acrylonitrile, les polyimides, les polyesters, les poly(acide lactique), les polyhydroxyalcanoates, les polymères vinyliques, les copolymères d'éthylène et d'un composé vinylique, les polymères d'acide (méth)acrylique, les polymères de (méth)acrylate d'alkyle, les polycaprolactones, les polystyrènes, les polymères de styrène et d'un anhydride, les copolymères d'une oléfine et d'un monomère fluoré, les polycarbonates, les polycétones, les polyéthercétones, les polyéthersulfones, les polyimides, et les polyuréthanes linéaires.  4. Plate according to one of claims 1 to 3, characterized in that the thermoplastic polymer is chosen from polyolefins, polyamides, homopolymers and copolymers of acrylonitrile, polyimides, polyesters, poly (lactic acid) , polyhydroxyalkanoates, vinyl polymers, copolymers of ethylene and a vinyl compound, (meth) acrylic acid polymers, alkyl (meth) acrylate polymers, polycaprolactones, polystyrenes, styrene and an anhydride, copolymers of an olefin and a fluorinated monomer, polycarbonates, polyketones, polyetherketones, polyethersulfones, polyimides, and linear polyurethanes. 5. Plaque selon la revendication 4, caractérisée en ce que le polymère thermoplastique est choisi parmi le polypropylène, les polymères d'acide (méth)acrylique ou de (méth)acrylate, les poly(acide lactique), les polyhydroxyalcanoates, le PET, le PBT et le polynaphtalate d'éthylène.  5. Plate according to claim 4, characterized in that the thermoplastic polymer is chosen from polypropylene, polymers of (meth) acrylic acid or (meth) acrylate, poly (lactic acid), polyhydroxyalkanoates, PET, PBT and ethylene polynaphthalate. 6. Plaque selon la revendication 5, caractérisée en ce que le polymère thermoplastique est le polypropylène, un polymère d'acide (méth)acrylique ou de (méth)acrylate, ou le PET.  6. Plate according to claim 5, characterized in that the thermoplastic polymer is polypropylene, a polymer of (meth) acrylic acid or (meth) acrylate, or PET. 7. Plaque selon l'une des revendications 1 à 6, caractérisée en ce que le textile renferme un mélange d'au moins deux fibres de polymère thermoplastique différentes, en particulier un mélange de fibres de polypropylène et de fibres de polymère d'acide (méth)acrylique ou de (méth)acrylate, ou de fibres de polypropylène et de fibres de PET. Plate according to one of Claims 1 to 6, characterized in that the textile contains a mixture of at least two different thermoplastic polymer fibers, in particular a mixture of polypropylene and polymer fibers of (meth) acrylic acid or (meth) acrylate, or polypropylene fibers and PET fibers. 8. Plaque selon la revendication 7, caractérisée en ce que la quantité la quantité de fibres de polypropylène représente 10 à 90 % de la masse totale des fibres de polymère thermoplastique, de préférence est au moins égale à 50 %, et avantageusement est au moins égale à 70 %.  8. Plate according to claim 7, characterized in that the amount of the polypropylene fiber is 10 to 90% of the total mass of the thermoplastic polymer fibers, preferably at least 50%, and preferably is at least equal to 70%. 9. Plaque selon l'une des revendications 1 à 8, caractérisée en ce que les fibres présentent une masse linéique qui varie de 1 à 25 dtex, de préférence de 3 à 15 dtex, et avantageusement de 5 à 12 dtex.  9. Plate according to one of claims 1 to 8, characterized in that the fibers have a linear density which varies from 1 to 25 dtex, preferably from 3 to 15 dtex, and preferably from 5 to 12 dtex. 10. Plaque selon l'une des revendications 1 à 9, caractérisée en ce que les fibres sont coupées et que leur longueur varie de 0,5 à 15 cm, de préférence de 1 à 10 cm et avantageusement de 2 à 8 cm.  10. Plate according to one of claims 1 to 9, characterized in that the fibers are cut and their length varies from 0.5 to 15 cm, preferably from 1 to 10 cm and preferably from 2 to 8 cm. 1 1 . Plaque selon l'une des revendications 1 à 10, caractérisée en ce que les fibres de polymère thermoplastique ont une section simple ou multilobée.  1 1. Plate according to one of claims 1 to 10, characterized in that the thermoplastic polymer fibers have a single or multilobed section. 12. Plaque selon l'une des revendications 1 à 1 1 , caractérisée en ce que le textile peut renfermer jusqu'à 30 % en poids de fibres à base d'un polymère non thermoplastique ou des fibres de verre.  12. Plate according to one of claims 1 to 1 1, characterized in that the textile can contain up to 30% by weight of fibers based on a non-thermoplastic polymer or glass fibers. 13. Plaque selon la revendication 12, caractérisée en ce que le textile est consolidé par un liant aqueux qui contient au moins un polymère choisi parmi les copolymères d'une oléfine et d'acétate de vinyle, les copolymères d'acétate de vinyle et d'acide (méth)acrylique ou d'acrylate, les copolymères de (méth)acrylate et d'un monomère autre que l'acétate de vinyle, les homopolymères d'acide (méth)acrylique ou d'acrylate, les terpolymères d'acétate de vinyle, d'une oléfine et d'un monomère d'ester vinylique, et les polymères d'acrylonitrile.  13. Plate according to claim 12, characterized in that the textile is consolidated by an aqueous binder which contains at least one polymer selected from copolymers of an olefin and vinyl acetate, copolymers of vinyl acetate and vinyl acetate. (meth) acrylic acid or acrylate, copolymers of (meth) acrylate and a monomer other than vinyl acetate, homopolymers of (meth) acrylic acid or acrylate, acetate terpolymers vinyl, an olefin and a vinyl ester monomer, and acrylonitrile polymers. 14. Plaque selon l'une des revendications 1 à 13, caractérisée en ce que le textile présente une masse surfacique qui varie de 50 à 800 g/m2, de préférence 60 à 500 g/m2 et avantageusement 80 à 300 g/m2. 14. Plate according to one of claims 1 to 13, characterized in that the textile has a density which varies from 50 to 800 g / m 2 , preferably 60 to 500 g / m 2 and preferably 80 to 300 g / m 2. m 2 . 15. Plaque selon l'une des revendications 1 à 14, caractérisée en ce qu'elle possède une épaisseur qui varie de 6 à 25 millimètres, et de préférence est de l'ordre de 12,5 millimètres.  15. Plate according to one of claims 1 to 14, characterized in that it has a thickness which varies from 6 to 25 millimeters, and is preferably of the order of 12.5 millimeters.
EP17702427.0A 2016-01-13 2017-01-11 Acoustic plasterboard Withdrawn EP3402664A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1650247A FR3046566B1 (en) 2016-01-13 2016-01-13 ACOUSTIC PLATE BASED ON PLASTER.
PCT/FR2017/050061 WO2017121957A1 (en) 2016-01-13 2017-01-11 Acoustic plasterboard

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JP (1) JP2019508284A (en)
KR (1) KR20180101382A (en)
CN (1) CN108472921A (en)
AU (1) AU2017206991A1 (en)
BR (1) BR112018013028A2 (en)
CA (1) CA3009024A1 (en)
CL (1) CL2018001852A1 (en)
FR (1) FR3046566B1 (en)
RU (1) RU2018129181A (en)
SG (1) SG11201805947TA (en)
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MX2020013575A (en) 2019-12-12 2021-06-14 Gold Bond Building Products Llc Wallboard with foam material layer.
CA3121091A1 (en) 2020-06-05 2021-12-05 Gold Bond Building Products, Llc Sound damping gypsum board and method of constructing a sound damping gypsum board

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FR3018220B1 (en) * 2014-03-07 2020-08-14 Saint Gobain Placo PLASTER-BASED ACOUSTIC PLATE.

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BR112018013028A2 (en) 2018-12-04
RU2018129181A (en) 2020-02-13
ZA201804100B (en) 2019-04-24
US20190030860A1 (en) 2019-01-31
RU2018129181A3 (en) 2020-04-15
CA3009024A1 (en) 2017-07-20
SG11201805947TA (en) 2018-08-30
WO2017121957A1 (en) 2017-07-20
KR20180101382A (en) 2018-09-12
CL2018001852A1 (en) 2018-10-12
JP2019508284A (en) 2019-03-28
FR3046566B1 (en) 2019-07-12
AU2017206991A1 (en) 2018-08-02
FR3046566A1 (en) 2017-07-14
CN108472921A (en) 2018-08-31

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