WO2014131993A1 - Anti-dust mortar composition - Google Patents

Anti-dust mortar composition Download PDF

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Publication number
WO2014131993A1
WO2014131993A1 PCT/FR2014/050417 FR2014050417W WO2014131993A1 WO 2014131993 A1 WO2014131993 A1 WO 2014131993A1 FR 2014050417 W FR2014050417 W FR 2014050417W WO 2014131993 A1 WO2014131993 A1 WO 2014131993A1
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WO
WIPO (PCT)
Prior art keywords
composition according
composition
additive
formula
carbon atoms
Prior art date
Application number
PCT/FR2014/050417
Other languages
French (fr)
Inventor
Elodie Taboulot
Luis Silva
Original Assignee
Saint-Gobain Weber
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 Weber filed Critical Saint-Gobain Weber
Priority to EP14710031.7A priority Critical patent/EP2961718A1/en
Publication of WO2014131993A1 publication Critical patent/WO2014131993A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/025—Belite cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/10—Lime cements or magnesium oxide cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/10—Lime cements or magnesium oxide cements
    • C04B28/12—Hydraulic lime
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0075—Anti-dusting agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a mineral binder-based composition comprising a dust-reducing additive, to its process of preparation and to the use of such a composition in the field of construction products, such as for example mortars-adhesives, facade coatings, interior or floor coatings, screeds, joints ....
  • These hydraulic binder compositions comprise various powdered ingredients and are generally stored in powder form in bags. When used on construction sites, these bags are emptied and the powder is mixed with water: it is called a mixing operation. Once spoiled, the product thus obtained can be applied to the chosen support.
  • the particles present in these compositions have sizes that can vary from a few micrometers to a few millimeters and some of them are capable of producing large dust emissions, particularly troublesome for the user when handling the product when is in the powdery state.
  • a hydrocarbon organic substance such as mineral oils or paraffinic oils as dust suppressants.
  • the application WO 2012/017169 describes the use of a fluid additive comprising an oil-type hydrocarbon compound comprising ester groups.
  • regulations are changing and some hydrocarbon oils used today pose a significant risk by inhalation.
  • the present invention relates to a binder-based powder composition
  • a binder-based powder composition comprising at least:
  • an anti-dust additive which is a compound chosen from:
  • the addition of this dust additive does not modify the mechanical or physicochemical performance, especially the adhesion performance, of the products obtained from this composition.
  • the compounds used as anti-dust additives have the advantage of being less polar than alcohols for example, since they do not comprise a hydroxyl group and therefore -OH bonds. The longer the hydrocarbon chain, the less polar the compound and the better its performance as a dust additive.
  • alkyl hydrocarbon radical is understood to mean a linear or cyclic monovalent radical originating from the removal of a hydrogen atom in the molecule of a hydrocarbon.
  • alkylene hydrocarbon radical is meant a divalent radical derived from the removal of two hydrogen atoms on two different carbon atoms of a saturated hydrocarbon.
  • the anti-dust additive is a compound chosen from aliphatic amines of formula N R1 R2R3, or phosphates of formula P (O) (ORi ') (OR 2 ') (OR 3 ') in which the groups R 1; R 2 , R 3 , and IV, R 2 'R 3 ', which may be identical or different, represent linear, alkyl or alkylene hydrocarbon radicals, unsubstituted by a hydroxyl radical, optionally branched, saturated or unsaturated, comprising a total number of atoms of carbon greater than or equal to 8.
  • the content of additive in the composition according to the present invention is between 0.1 and 2% by weight relative to the total weight of the composition, preferably between 0.4 and 1.5% by weight. in weight.
  • the anti-dust additive comprises at least one organic compound with a heteroatom as described above comprising more than 12 carbon atoms, and even more preferably more than 16 carbon atoms.
  • nitrogen compounds which can be used according to the present invention, mention may be made of tributylamine, tripenthylamine, trihexylamine, N, N-dimethylhexadecylamine, ⁇ , ⁇ -dimethyltetradecylamine, N, N-dimethyldodecaneamine, ⁇ , ⁇ -dimethyloctadecylamine, N-ethyldidecylamine, N-methyldidodecylamine, ⁇ , ⁇ -diethylhexadecylamine, N-methyl-N-octyldecan-1-amine, N-ethyl-N-heptyldodecan-1-amine, N ethyl-N-hexyldodecan-1
  • the additive according to the present invention may be a mixture of several organic compounds comprising the same heteroatom, at least one of the compounds present in the mixture comprising at least 8 carbon atoms and being defined as described above.
  • the anti-dust additive according to the present invention may also comprise, in addition to the one or more organic compounds comprising a heteroatom described above, a compound for further reducing the polarity of the additive.
  • the content of this compound preferably varies between 0.1 and 1% by weight relative to the total weight of the composition, and preferably between 0.1 and 0.40% by weight.
  • this compound is miscible with the organic compound comprising the heteroatom. It is for example chosen from mineral oils, paraffin oils, polyolefins or their mixtures.
  • An additive consisting of a mixture of oil and organic compound comprising a heteroatom as defined above advantageously makes it possible to be less viscous than an additive solely based on oil.
  • the addition of oil is particularly advantageous in the cases where the anti-dust additive is an organic compound comprising between 8 and 16 carbon atoms.
  • the additive is preferably in liquid form at room temperature. It can be in the form of an emulsion, if its constituents are immiscible.
  • the continuous phase also called the dispersing phase of the emulsion, is formed by the constituent which is the least polar.
  • the composition according to the present invention comprises a mineral binder which is at least one compound selected from a hydraulic binder, a source of calcium sulfate or lime.
  • the hydraulic binder is preferably chosen from Portland cements, aluminous cements, sulphoaluminous cements, belitic cements, blast furnace slags, pozzolanic mixture cements optionally comprising fly ash, silica fumes, limestone. , calcined shale and / or natural or calcinated pozzolans.
  • the hydraulic binder may consist of one of the cements mentioned above, or be a mixture.
  • the calcium sulfate may be plaster or hemihydrate, gypsum or anhydrite.
  • the composition according to the present invention also comprises aggregates, aggregates and / or sands, or other inert fillers which play in particular on the rheology, the thickness, the hardness, the density, the final appearance and the permeability of the building material obtained.
  • Aggregates, aggregates and / or sands are generally formed of siliceous sand, limestone and / or silico-limestone and have a particle size ranging between 100 ⁇ and 3 mm.
  • Inert fillers may for example be polystyrene beads or pearlite, vermicullite or expanded glass granules.
  • the composition according to the present invention may further comprise a water-dispersible polymer powder and / or a latex.
  • a water-dispersible polymer powder is a polymer powder which, when mixed in an aqueous medium, splits into small particles, forming a stable dispersion in water.
  • examples include thermoplastic polymers such as ethylenic copolymers, vinyl, styrene, acrylic or acrylic esters, elastomeric polymers, such as copolymers of styrene and butadiene or nitriles.
  • latex refers in particular latex polymers conventionally used in building materials.
  • latex elastomeric latexes, thermoplastic latices and thermosetting latices may be mentioned.
  • latex is meant an aqueous emulsion or dispersion of one or more natural or synthetic polymeric substances.
  • the water-dispersible polymer polymer powder and / or the latex comprises a polymer such as polyethylene, polyisoprene, polystyrene, polyvinyl chloride, a polybutadiene or a derivative thereof, a derivative of polyacrylic acid, polyvinyl acetate, vinyl polyvinylate, polyvinyl acetate, copolymer of vinyl acetate and ethylene, a copolymer derivative of styrene and acrylic acid, or a copolymer of styrene and butadiene.
  • a polymer such as polyethylene, polyisoprene, polystyrene, polyvinyl chloride, a polybutadiene or a derivative thereof, a derivative of polyacrylic acid, polyvinyl acetate, vinyl polyvinylate, polyvinyl acetate, copolymer of vinyl acetate and ethylene, a copolymer derivative of styrene and acrylic acid, or a
  • the composition may comprise between 0 and 20% by weight, preferably between 0 and 5% by weight of water-dispersible polymer powder and / or latex.
  • composition according to the present invention may further comprise fillers called fillers, limestone or siliceous, with a particle size generally less than 150 ⁇ m.
  • It may also comprise rheological agents, water-retaining agents, air-entraining agents, thickening agents, biocidal protective agents, fungicides, dispersing agents, pigments, accelerators and / or retarders. as well as other agents to improve the setting, the hardening, the stability of the products after application and in particular to adjust the color, the workability, the implementation or the impermeability.
  • the content of additives and adjuvants conventionally varies between 0.1 and 10% by weight relative to the total weight of the composition.
  • the present invention also relates to a process for the preparation of the composition described above.
  • the additive is mixed with the other constituents of said composition by any technique known to those skilled in the art.
  • the additive when the composition comprises aggregates, aggregates and / or sands or inert fillers, the additive is first mixed with these constituents.
  • the mixture obtained after addition is then mixed with the other constituents, that is to say with the inorganic binder and any other additives present.
  • the present invention also relates to mineral binder-based building materials such as mortars, plaster, plasters, screeds or tile joints comprising the composition described above, when mixed with water.
  • composition C1 of dry mortar is prepared by mixing the following constituents (the percentages given correspond to mass percentages):
  • compositions C2 to C8 are prepared by adding various compounds comprising heteroatoms and liquids at room temperature, and of purity greater than 90%, alone or as a mixture with a mineral oil:
  • composition C1 -1% dibutylamine relative to the total mass of the composition C1. This gives the composition C2, not in accordance with the invention. -1% of tributanolamine relative to the total mass of the composition C1. This gives the composition C3, not in accordance with the invention.
  • composition C4 is thus obtained.
  • composition C5 is thus obtained.
  • composition C6 according to the present invention is thus obtained.
  • composition C7 1% of tris (2-ethylhexyl) phosphate relative to the total mass of the composition C1.
  • composition C8 according to the present invention is thus obtained.
  • the effectiveness of the additives to reduce the dust emissions of mortars is qualified by observing the amount of dust emitted during a fall of 100g of dry mortar in a transparent tube of height 50cm arranged vertically.
  • the mortar compositions are noted according to the dust generated by this fall: the score "0" is equivalent to a high dust emission corresponding to the reference C1 sample without anti-dust agent. It is observed after the fall of the mortar in the tube, a thick dust rising out of the tube.
  • the rating "++” is equivalent to a low dust emission rising less than half the height of the tube.
  • the note “+” is equivalent to the intermediate cases: a release of dust rising above half the height of the tube.
  • Table 1 Reduction of Reduction of Emissions Emissions of dust emissions after dust after 7 dust after 28 10 minutes days days days
  • Table 1 A notable effect of dust reduction is noted when using dust suppressants comprising long hydrocarbon chains (greater than 8 carbon atoms) and a heteroatom.

Abstract

The present invention relates to a pulverulent binder-based composition comprising at least one mineral binder, an anti-dust additive which is a nitrogen-containing, phosphorus-containing or sulphur-containing organic compound comprising at least 8 carbon atoms, and aggregates and/or sand, or other inert fillers, to the process for preparing such a composition and to construction materials obtained after mixing said composition.

Description

COMPOSITION DE MORTIER ANTI-POUSSIERE  ANTI-DUST MORTAR COMPOSITION
La présente invention est relative à une composition à base de liant minéral, comprenant un additif anti-poussière, à son procédé de préparation et à l'utilisation d'une telle composition dans le domaine des produits de construction, comme par exemple en tant que mortiers-colles, enduits de façades, enduits intérieurs ou de sols, chapes, joints.... The present invention relates to a mineral binder-based composition comprising a dust-reducing additive, to its process of preparation and to the use of such a composition in the field of construction products, such as for example mortars-adhesives, facade coatings, interior or floor coatings, screeds, joints ....
Ces compositions à base de liant hydraulique comprennent différents ingrédients sous forme de poudre et sont généralement stockées à l'état pulvérulent dans des sacs. Lors de la mise en œuvre sur chantiers, ces sacs sont vidés et la poudre est mélangée avec de l'eau : on parle d'opération de gâchage. Une fois gâché, le produit ainsi obtenu peut être appliqué sur le support choisi.  These hydraulic binder compositions comprise various powdered ingredients and are generally stored in powder form in bags. When used on construction sites, these bags are emptied and the powder is mixed with water: it is called a mixing operation. Once spoiled, the product thus obtained can be applied to the chosen support.
Les particules présentes dans ces compositions ont des tailles qui peuvent varier de quelques micromètres à quelques millimètres et certaines d'entre elles sont susceptibles de produire d'importantes émissions de poussières, particulièrement gênantes pour l'utilisateur lors de la manipulation du produit lorsqu'il est à l'état pulvérulent.  The particles present in these compositions have sizes that can vary from a few micrometers to a few millimeters and some of them are capable of producing large dust emissions, particularly troublesome for the user when handling the product when is in the powdery state.
La réduction des émissions de poussières est par conséquent une préoccupation majeure dans ce domaine. Les demandes WO 2006/084588 et EP 1783 The reduction of dust emissions is therefore a major concern in this area. Applications WO 2006/084588 and EP 1783
105 proposent d'utiliser une substance organique hydrocarbonée telles que des huiles minérales ou huiles paraffiniques comme additifs anti-poussière. La demande WO 2012/017169 décrit l'utilisation d'un additif fluide comprenant un composé hydrocarboné de type huile comprenant des groupes esters. Toutefois, les réglementations évoluent et certaines huiles d'hydrocarbures utilisées aujourd'hui présentent un risque important par inhalation. 105 propose to use a hydrocarbon organic substance such as mineral oils or paraffinic oils as dust suppressants. The application WO 2012/017169 describes the use of a fluid additive comprising an oil-type hydrocarbon compound comprising ester groups. However, regulations are changing and some hydrocarbon oils used today pose a significant risk by inhalation.
Il existe donc un besoin de mettre au point de nouvelles compositions à base de liant hydraulique comprenant d'autres types d'additifs anti-poussières, n'ajoutant pas de risques EHS (Environnement, Hygiène & Sécurité) sur les produits finis, et conservant les qualités d'usages recherchées comme par exemple les propriétés mécaniques, notamment les propriétés d'adhérence. C'est dans ce cadre que s'inscrit la présente invention. Les inventeurs ont découvert de manière surprenante que l'ajout, en tant qu'additif, d'un composé hydrocarboné à chaîne longue, c'est-à-dire comprenant au moins 8 atomes de carbone, et comprenant un hétéroatome choisi parmi l'azote, le soufre ou le phosphore dans des compositions pulvérulentes permettait avantageusement de réduire les émissions de poussières lors de leur utilisation. There is therefore a need to develop new compositions based on hydraulic binder comprising other types of anti-dust additives, not adding EHS (Environment, Health & Safety) risks on the finished products, and retaining the desired qualities of use, for example the mechanical properties, in particular the adhesion properties. This is the context of the present invention. The inventors have surprisingly found that the addition, as an additive, a long-chain hydrocarbon compound, that is to say comprising at least 8 carbon atoms, and comprising a heteroatom chosen from nitrogen, sulfur or phosphorus in powdery compositions advantageously allowed to reduce dust emissions during their use.
La présente invention porte sur une composition pulvérulente à base de liant comprenant au moins : The present invention relates to a binder-based powder composition comprising at least:
-un liant minéral, a mineral binder,
-un additif anti-poussière qui est un composé choisi parmi : an anti-dust additive which is a compound chosen from:
• les aminés aliphatiques de formule NR1 R2R3 dans laquelle les groupements Ri , R2 et R3, identiques ou différents, représentent l'hydrogène ou des radicaux hydrocarbonés linéaires, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdites aminés étant supérieur ou égal à 8, au moins un des groupements Ri , R2 et R3 étant différent de l'hydrogène,Aliphatic amines of formula NR 1 R 2 R 3 in which the groups R 1, R 2 and R 3 , which are identical or different, represent hydrogen or linear hydrocarbon radicals, alkyl or alkylene, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms of said amines being greater than or equal to 8, at least one of R 1, R 2 and R 3 being different from hydrogen,
• les phosphates de formule P(0)(ORi ' )(OR2' )(OR3' ), les esters de phosphites de formule P (ORi ' )(OR2' )(OR3' ), les phosphines de formule PR! 'R2'R3' ou les phosphonates de formule P(0)(ORi ' )(OR2' )(R3' ) dans laquelle les groupements Ri ', R2' et R3' représentent des radicaux hydrocarbonés, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdits phosphates étant supérieur ou égal à 8, Phosphates of formula P (O) (ORi ') (OR 2 ') (OR 3 '), phosphite esters of formula P (ORi') (OR 2 ') (OR 3 '), phosphines of formula PR! R 2 'R 3 ' or phosphonates of formula P (O) (OR 1 ') (OR 2 ') (R 3 ') in which the groups R 1', R 2 'and R 3 ' represent hydrocarbon radicals, alkyls or alkylene radicals, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms of said phosphates being greater than or equal to 8,
• les sulfures de formule SRi "R2" dans laquelle les groupements Ri " , R2" représentent l'hydrogène ou des radicaux hydrocarbonés, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdits sulfures étant supérieur ou égal à 8, au moins un des groupements R"i et R"2 étant différent de l'hydrogène et Sulphides of formula SRi "R 2 " in which the groups Ri ", R 2 " represent hydrogen or hydrocarbon, alkyl or alkylene radicals, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms of said sulfides being greater than or equal to 8, at least one of the groups R "1 and R" 2 being different from hydrogen and
- des granulats, agrégats et/ou sable, ou autres charges inertes. L'ajout de cet additif anti poussière ne modifie pas les performances mécaniques ou physicochimiques, notamment les performances d'adhérence, des produits obtenus à partir de cette composition. Les composés utilisés comme additifs anti-poussière présentant l'avantage d'être moins polaires que les alcools par exemple, puisqu'ils ne comprennent pas de groupement hydroxyle donc de liaisons -OH. Plus la chaîne hydrocarbonée est longue, moins le composé est polaire et meilleures seront ses performances en tant qu'additif anti-poussière. - aggregates, aggregates and / or sand, or other inert fillers. The addition of this dust additive does not modify the mechanical or physicochemical performance, especially the adhesion performance, of the products obtained from this composition. The compounds used as anti-dust additives have the advantage of being less polar than alcohols for example, since they do not comprise a hydroxyl group and therefore -OH bonds. The longer the hydrocarbon chain, the less polar the compound and the better its performance as a dust additive.
On entend par radical hydrocarboné « alkyle », un radical monovalent linéaire ou cyclique, provenant de l'enlèvement d'un atome d'hydrogène dans la molécule d'un hydrocarbure. The term "alkyl" hydrocarbon radical is understood to mean a linear or cyclic monovalent radical originating from the removal of a hydrogen atom in the molecule of a hydrocarbon.
On entend par radical hydrocarboné « alkylène », un radical bivalent provenant de l'enlèvement de deux atomes d'hydrogène sur deux atomes de carbone différents d'un hydrocarbure saturé.  By "alkylene" hydrocarbon radical is meant a divalent radical derived from the removal of two hydrogen atoms on two different carbon atoms of a saturated hydrocarbon.
De façon préférée, l'additif anti-poussière est un composé choisi parmi les aminés aliphatiques de formule N R1 R2R3, ou les phosphates de formule P(0)(ORi')(OR2')(OR3') dans lesquelles les groupements R1 ; R2, R3, et IV, R2' R3' identiques ou différents, représentent des radicaux hydrocarbonés linéaires, alkyles ou alkylènes, non substitués par un radical hydroxyle, éventuellement ramifiés, saturés ou insaturés, comprenant un nombre total d'atomes de carbone supérieur ou égal à 8. La teneur en additif dans la composition selon la présente invention est comprise entre 0, 1 et 2% en poids par rapport au poids total de la composition, de préférence entre 0,4 et 1 ,5% en poids. Preferably, the anti-dust additive is a compound chosen from aliphatic amines of formula N R1 R2R3, or phosphates of formula P (O) (ORi ') (OR 2 ') (OR 3 ') in which the groups R 1; R 2 , R 3 , and IV, R 2 'R 3 ', which may be identical or different, represent linear, alkyl or alkylene hydrocarbon radicals, unsubstituted by a hydroxyl radical, optionally branched, saturated or unsaturated, comprising a total number of atoms of carbon greater than or equal to 8. The content of additive in the composition according to the present invention is between 0.1 and 2% by weight relative to the total weight of the composition, preferably between 0.4 and 1.5% by weight. in weight.
De façon préférée, l'additif anti-poussière comprend au moins un composé organique avec un hétéroatome tel que décrit ci-dessus comprenant plus de 12 atomes de carbone, et encore plus préférentiellement plus de 16 atomes de carbone. A titre d'exemple de composés azotés utilisables selon la présente invention, on peut citer la tributylamine, la tripenthylamine, la trihexylamine, la N,N- diméthylhexadécylamine, la Ν,Ν-diméthyltétradécylamine, la N,N- diméthyldodécaneamine, la Ν,Ν-diméthyloctadécylamine, la N-éthyldidécylamine, la N-méthyldidodécylamine, la Ν,Ν-diéthylhexadécylamine, la N-méthyl-N- octyldécan-1 -aminé, la N-éthyl-N-heptyldodécan-1 -aminé, la N-éthyl-N- hexyldodécan-1 -aminé, l'octylamine, la décylamine, la N-méthyl-N-octylamine, la N-éthyl-N-décylamine. Preferably, the anti-dust additive comprises at least one organic compound with a heteroatom as described above comprising more than 12 carbon atoms, and even more preferably more than 16 carbon atoms. By way of example of nitrogen compounds which can be used according to the present invention, mention may be made of tributylamine, tripenthylamine, trihexylamine, N, N-dimethylhexadecylamine, Ν, Ν-dimethyltetradecylamine, N, N-dimethyldodecaneamine, Ν, Ν-dimethyloctadecylamine, N-ethyldidecylamine, N-methyldidodecylamine, Ν, Ν-diethylhexadecylamine, N-methyl-N-octyldecan-1-amine, N-ethyl-N-heptyldodecan-1-amine, N ethyl-N-hexyldodecan-1-amine, octylamine, decylamine, N-methyl-N-octylamine, N-ethyl-N-decylamine.
A titre de composés phosphorés utilisables dans la présente invention, on peut citer le tris(2-éthylhexyl) phosphate, le bis(2-ethylhexyl) phosphite, le tris(2-éthylhexyl) phosphite, le trioctyle phosphate, le tributyle phosphate, le tributyle phosphite, le tétraisopropylméthylène diphosphonate.  As phosphorus compounds that may be used in the present invention, mention may be made of tris (2-ethylhexyl) phosphate, bis (2-ethylhexyl) phosphite, tris (2-ethylhexyl) phosphite, trioctyl phosphate, tributyl phosphate, tributyl phosphite, tetraisopropylmethylene diphosphonate.
A titre d'exemple de composés soufrés utilisables selon la présente invention, on peut citer le N-amyl sulfide, le dioctyl sulfide, 1 ,8-octanedithiol , le lauryl sulfate d'ammonium.  By way of example of sulfur compounds that can be used according to the present invention, mention may be made of N-amyl sulphide, dioctyl sulphide, 1,8-octanedithiol and ammonium lauryl sulphate.
L'additif selon la présente invention peut être un mélange de plusieurs composés organiques comprenant le même hétéroatome, l'un au moins un des composés présents dans le mélange comprenant au moins 8 atomes de carbone et étant défini tel que décrit précédemment. The additive according to the present invention may be a mixture of several organic compounds comprising the same heteroatom, at least one of the compounds present in the mixture comprising at least 8 carbon atoms and being defined as described above.
L'additif anti-poussière selon la présente invention peut également comprendre, en plus du ou des composés organiques comprenant un hétéroatome décrits ci-dessus, un composé permettant de réduire encore davantage la polarité de l'additif. La teneur de ce composé varie préférentiellement entre 0, 1 et 1% poids par rapport au poids total de la composition, et de préférence entre 0,1 et 0,40% poids. De façon préférée, ce composé est miscible avec le composé organique comprenant l'hétéroatome. Il est par exemple choisi parmi les huiles minérales, les huiles de paraffine, les polyoléfines ou leurs mélanges. Un additif constitué d'un mélange d'huile et de composé organique comprenant un hétéroatome tel que défini précédemment permet avantageusement d'être moins visqueux qu'un additif uniquement à base d'huile. L'ajout d'huile est particulièrement avantageux dans les cas où l'additif anti-poussière est un composé organique comprenant entre 8 et 16 atomes de carbone. The anti-dust additive according to the present invention may also comprise, in addition to the one or more organic compounds comprising a heteroatom described above, a compound for further reducing the polarity of the additive. The content of this compound preferably varies between 0.1 and 1% by weight relative to the total weight of the composition, and preferably between 0.1 and 0.40% by weight. Preferably, this compound is miscible with the organic compound comprising the heteroatom. It is for example chosen from mineral oils, paraffin oils, polyolefins or their mixtures. An additive consisting of a mixture of oil and organic compound comprising a heteroatom as defined above advantageously makes it possible to be less viscous than an additive solely based on oil. The addition of oil is particularly advantageous in the cases where the anti-dust additive is an organic compound comprising between 8 and 16 carbon atoms.
L'additif est de façon préférée sous forme liquide à température ambiante. Il peut se présenter sous la forme d'une émulsion, si ses constituants ne sont pas miscibles. De façon préférée, la phase continue, encore appelée phase dispersante de l'émulsion, est formée par le constituant qui est le moins polaire. The additive is preferably in liquid form at room temperature. It can be in the form of an emulsion, if its constituents are immiscible. Preferably, the continuous phase, also called the dispersing phase of the emulsion, is formed by the constituent which is the least polar.
La composition selon la présente invention comprend un liant minéral qui est au moins un composé choisi parmi un liant hydraulique, une source de sulfate de calcium ou de la chaux. Le liant hydraulique est choisi, de préférence, parmi les ciments Portland, les ciments alumineux, les ciments sulfoalumineux, les ciments bélitiques, les laitiers de haut fourneau, les ciments de mélange pouzzolaniques comprenant éventuellement des cendres volantes, des fumées de silice, du calcaire, du schiste calciné et/ou des pouzzolanes naturelles ou calcinées. Le liant hydraulique peut être constitué d'un des ciments cité ci-dessus, ou bien être un mélange. The composition according to the present invention comprises a mineral binder which is at least one compound selected from a hydraulic binder, a source of calcium sulfate or lime. The hydraulic binder is preferably chosen from Portland cements, aluminous cements, sulphoaluminous cements, belitic cements, blast furnace slags, pozzolanic mixture cements optionally comprising fly ash, silica fumes, limestone. , calcined shale and / or natural or calcinated pozzolans. The hydraulic binder may consist of one of the cements mentioned above, or be a mixture.
Le sulfate de calcium peut être du plâtre ou hémihydrate, du gypse ou de l'anhydrite.  The calcium sulfate may be plaster or hemihydrate, gypsum or anhydrite.
La composition selon la présente invention comprend également des granulats, agrégats et/ou sables, ou autres charges inertes qui jouent notamment sur la rhéologie, l'épaisseur, la dureté, la densité, l'aspect final et la perméabilité du matériau de construction obtenu. Les granulats, agrégats et/ou sables sont généralement formés de sables siliceux, calcaires et/ou silico-calcaires et ont une granulométrie variant entre 100 μητι et 3 mm. Les charges inertes peuvent par exemple être des billes de polystyrène ou de perlite, de la vermicullite ou des granulats de verre expansé. La composition selon la présente invention peut en outre comprendre une poudre de polymère hydrodispersible et/ou un latex. The composition according to the present invention also comprises aggregates, aggregates and / or sands, or other inert fillers which play in particular on the rheology, the thickness, the hardness, the density, the final appearance and the permeability of the building material obtained. . Aggregates, aggregates and / or sands are generally formed of siliceous sand, limestone and / or silico-limestone and have a particle size ranging between 100 μητι and 3 mm. Inert fillers may for example be polystyrene beads or pearlite, vermicullite or expanded glass granules. The composition according to the present invention may further comprise a water-dispersible polymer powder and / or a latex.
Une poudre de polymère hydrodispersible est une poudre de polymère qui, lorsqu'elle est mélangée dans un milieu aqueux, se divise en petites particules, formant une dispersion stable dans l'eau. On citera par exemple les polymères thermoplastiques comme les copolymères éthyléniques, vinyliques, styréniques, acryliques ou esters acryliques, les polymères élastomères, comme les copolymères de styrène et de butadiène ou les nitriles. A water-dispersible polymer powder is a polymer powder which, when mixed in an aqueous medium, splits into small particles, forming a stable dispersion in water. Examples include thermoplastic polymers such as ethylenic copolymers, vinyl, styrene, acrylic or acrylic esters, elastomeric polymers, such as copolymers of styrene and butadiene or nitriles.
Le terme « latex » désigne en particulier les polymères latex classiquement utilisés dans les matériaux de construction. On peut citer par exemple les latex élastomères, les latex thermoplastiques et les latex thermodurcissables. On entend par latex une émulsion ou dispersion aqueuse d'une ou plusieurs substances polymères naturelles ou synthétiques. The term "latex" refers in particular latex polymers conventionally used in building materials. For example, elastomeric latexes, thermoplastic latices and thermosetting latices may be mentioned. By latex is meant an aqueous emulsion or dispersion of one or more natural or synthetic polymeric substances.
De préférence, la poudre de polymère de polymère hydrodispersible et/ou le latex comprend un polymère tel que le polyéthylène, le polyisoprène, le polystyrène, le polychlorure de vinyle, un polybutadiène ou un de ses dérivés, un dérivé de l'acide polyacrylique, le polyacétate de vinyle, le polylaurate de vinyle, le polyversatate de vinyle, un copolymère d'acétate de vinyle et d'éthylène, un dérivé de copolymère de styrène et d'acide acrylique, ou un copolymère de styrène et de butadiène. Preferably, the water-dispersible polymer polymer powder and / or the latex comprises a polymer such as polyethylene, polyisoprene, polystyrene, polyvinyl chloride, a polybutadiene or a derivative thereof, a derivative of polyacrylic acid, polyvinyl acetate, vinyl polyvinylate, polyvinyl acetate, copolymer of vinyl acetate and ethylene, a copolymer derivative of styrene and acrylic acid, or a copolymer of styrene and butadiene.
De façon classique, la composition peut comprendre entre 0 et 20% poids, de préférence entre 0 et 5% poids de poudre de polymère hydrodispersible et/ou de latex.  In a conventional manner, the composition may comprise between 0 and 20% by weight, preferably between 0 and 5% by weight of water-dispersible polymer powder and / or latex.
La composition selon la présente invention peut comprendre en outre des charges appelées fillers, calcaires ou siliceux, de granulométrie généralement inférieure à 150 Mm. The composition according to the present invention may further comprise fillers called fillers, limestone or siliceous, with a particle size generally less than 150 μm.
Elle peut comprendre également des agents rhéologiques, des agents rétenteurs d'eau, des agents entraîneurs d'air, des agents épaississants, des agents de protection biocides, des fongicides, des agents dispersants, des pigments, des accélérateurs et/ou des retardateurs, ainsi que d'autres agents pour améliorer la prise, le durcissement, la stabilité des produits après application et notamment pour ajuster la couleur, l'ouvrabilité, la mise en œuvre ou l'imperméabilité. La teneur en additifs et adjuvants varie classiquement entre 0, 1 et 10% en poids par rapport au poids total de la composition. La présente invention porte également sur un procédé de préparation de la composition décrite ci-dessus. L'additif est mélangé avec les autres constituants de ladite composition par toute technique connue de l'homme de l'art. It may also comprise rheological agents, water-retaining agents, air-entraining agents, thickening agents, biocidal protective agents, fungicides, dispersing agents, pigments, accelerators and / or retarders. as well as other agents to improve the setting, the hardening, the stability of the products after application and in particular to adjust the color, the workability, the implementation or the impermeability. The content of additives and adjuvants conventionally varies between 0.1 and 10% by weight relative to the total weight of the composition. The present invention also relates to a process for the preparation of the composition described above. The additive is mixed with the other constituents of said composition by any technique known to those skilled in the art.
Selon un mode de réalisation préférée, quand la composition comprend des granulats, agrégats et/ou sables ou charges inertes, l'additif est d'abord mélangé avec ces constituants. Le mélange obtenu après ajout est ensuite mélangé avec les autres constituants, c'est-à-dire avec le liant minéral et les éventuels autres additifs présents. According to a preferred embodiment, when the composition comprises aggregates, aggregates and / or sands or inert fillers, the additive is first mixed with these constituents. The mixture obtained after addition is then mixed with the other constituents, that is to say with the inorganic binder and any other additives present.
La présente invention porte également sur les matériaux de construction à base de liant minéral tels que des mortiers, des enduits, des plâtres, des chapes ou des joints de carrelage comprenant la composition décrite ci-dessus, une fois mélangée avec de l'eau. The present invention also relates to mineral binder-based building materials such as mortars, plaster, plasters, screeds or tile joints comprising the composition described above, when mixed with water.
Les exemples ci-dessous illustrent l'invention sans en limiter la portée. Exemples Une composition C1 de mortier sec est préparée en mélangeant les constituants suivants (les pourcentages donnés correspondent à des pourcentages massiques) :The examples below illustrate the invention without limiting its scope. Examples A composition C1 of dry mortar is prepared by mixing the following constituents (the percentages given correspond to mass percentages):
40% de ciment Portland type CEM I, 40% Portland cement type CEM I,
53,55% de sable de taille de grain inférieure à 1 mm,  53.55% sand with a grain size less than 1 mm,
5% de latex Vinnapas N 501 ORE (Wacker),  5% Vinnapas N 501 ORE Latex (Wacker),
0.45% d'éther de cellulose, 0.45% cellulose ether,
1% de formiate de calcium.  1% calcium formate.
A partir de cette composition C1 de référence, on prépare les compositions C2 à C8, en ajoutant différents composés comprenant des hétéroatomes et liquides à température ambiante, et de pureté supérieure à 90%, seuls ou en mélange avec une huile minérale : From this reference composition C1, compositions C2 to C8 are prepared by adding various compounds comprising heteroatoms and liquids at room temperature, and of purity greater than 90%, alone or as a mixture with a mineral oil:
-1% dibutylamine par rapport à la masse totale de la composition C1. On obtient ainsi la composition C2, non conforme à l'invention. -1% de tributanolamine par rapport à la masse totale de la composition C1. On obtient ainsi la composition C3, non conforme à l'invention. -1% dibutylamine relative to the total mass of the composition C1. This gives the composition C2, not in accordance with the invention. -1% of tributanolamine relative to the total mass of the composition C1. This gives the composition C3, not in accordance with the invention.
-1% de tripentylamine par rapport à la masse totale de la composition C1. On obtient ainsi la composition C4.  -1% of tripentylamine relative to the total mass of the composition C1. The composition C4 is thus obtained.
-0.8% de tripentylamine et 0.3% d'huile minérale Sivano 1 de Cogelsa (viscosité ISO VG d'une valeur de 22 cSt à 40° C) par rapport à la masse totale de la composition C1. On obtient ainsi la composition C5. -0.8% of tripentylamine and 0.3% of Cogelsa Sivano 1 mineral oil (viscosity ISO VG of 22 cSt at 40 ° C) relative to the total mass of the composition C1. The composition C5 is thus obtained.
-1% de N-diméthylhexadécylamine par rapport à la masse totale de la composition C1. On obtient ainsi la composition C6 selon la présente invention.  -1% of N-dimethylhexadecylamine relative to the total mass of the composition C1. The composition C6 according to the present invention is thus obtained.
- 1% de tris(2-éthylhexyl) phosphate par rapport à la masse totale de la composition C1. On obtient ainsi la composition C7 selon la présente invention. 1% of tris (2-ethylhexyl) phosphate relative to the total mass of the composition C1. The composition C7 according to the present invention is thus obtained.
- 1% de tris(2-éthylhexyl) phosphate et 0,3% d'huile minérale Sivano 1 de Cogelsa (viscosité ISO VG d'une valeur de 22 cSt à 40°C) par rapport à la masse totale de la composition C1. On obtient ainsi la composition C8 selon la présente invention. 1% of tris (2-ethylhexyl) phosphate and 0.3% of Cogelsa Sivano 1 mineral oil (viscosity ISO VG of 22 cSt at 40 ° C.) relative to the total mass of composition C1 . The composition C8 according to the present invention is thus obtained.
L'efficacité des additifs à réduire les émissions de poussière des mortiers est qualifiée en observant la quantité de poussière émise lors d'une chute de 100g de mortier sec dans un tube transparent de hauteur 50cm disposé verticalement. Les compositions de mortiers sont notées en fonction de la poussière générée par cette chute : la note « 0 » équivaut à une forte émission de poussière correspondant à l'échantillon de C1 de référence sans agent anti-poussière. On observe après la chute du mortier dans le tube, une poussière épaisse remontant hors du tube. La note « ++ » équivaut à une faible émission de poussière remontant de moins de la moitié de la hauteur du tube. La note « + » équivaut aux cas intermédiaires : un dégagement de poussière remontant au-dessus de la moitié de la hauteur du tube. Les résultats obtenus pour les compositions C1 à C8 sont résumés dans le tableau 1. Réduction des Réduction des Réduction des émissions de émissions de émissions de poussières après poussières après 7 poussières après 28 10 minutes jours jours The effectiveness of the additives to reduce the dust emissions of mortars is qualified by observing the amount of dust emitted during a fall of 100g of dry mortar in a transparent tube of height 50cm arranged vertically. The mortar compositions are noted according to the dust generated by this fall: the score "0" is equivalent to a high dust emission corresponding to the reference C1 sample without anti-dust agent. It is observed after the fall of the mortar in the tube, a thick dust rising out of the tube. The rating "++" is equivalent to a low dust emission rising less than half the height of the tube. The note "+" is equivalent to the intermediate cases: a release of dust rising above half the height of the tube. The results obtained for compositions C1 to C8 are summarized in Table 1. Reduction of Reduction of Emissions Emissions of dust emissions after dust after 7 dust after 28 10 minutes days days
Composition C1 0  Composition C1 0
0 0  0 0
(référence) (reference)
Composition C2 + 0 0  Composition C2 + 0 0
Composition C3 0 0 0  Composition C3 0 0 0
Composition C4 ++ ++ +  Composition C4 ++ ++ +
Composition C5 ++ ++ ++  Composition C5 ++ ++ ++
Composition C6 ++ ++ ++  Composition C6 ++ ++ ++
Composition C7 ++ + +  Composition C7 ++ + +
Composition C8 ++ ++ +  Composition C8 ++ ++ +
Tableau 1 On note un effet notable de la réduction de poussières lorsqu'on utilise des additifs anti-poussière comprenant des chaînes hydrocarbonées longues (supérieures à 8 atomes de carbone) et un hétéroatome. Table 1 A notable effect of dust reduction is noted when using dust suppressants comprising long hydrocarbon chains (greater than 8 carbon atoms) and a heteroatom.

Claims

REVENDICATIONS
Composition pulvérulente à base de liant caractérisée en ce qu'elle comprend au moins: Binder-based powder composition characterized in that it comprises at least:
-un liant minéral,  a mineral binder,
-un additif anti-poussière qui est un composé choisi parmi :  an anti-dust additive which is a compound chosen from:
• les aminés aliphatiques de formule N R1 R2R3 dans laquelle les groupements Ri , R2 et R3, identiques ou différents, représentent l'hydrogène ou des radicaux hydrocarbonés linéaires, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdites aminés étant supérieur ou égal à 8, au moins un des groupements Ri , R2 et R3 étant différent de l'hydrogène, Aliphatic amines of formula N R 1 R 2 R 3 in which the groups R 1, R 2 and R 3 , which are identical or different, represent hydrogen or linear hydrocarbon radicals, alkyl or alkylenes, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms of said amines being greater than or equal to 8, at least one of R 1, R 2 and R 3 being different from hydrogen,
• les phosphates de formule P(0)(ORi ' )(OR2' )(OR3' ), les esters de phosphites de formule P (ORi ' )(OR2' )(OR3' ), les phosphines de formule PRi 'R2'R3' ou les phosphonates de formule P(0)(ORi ' )(OR2' )(R3' ) dans laquelle les groupements Ri ', R2' et R3' représentent des radicaux hydrocarbonés, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdits phosphates étant supérieur ou égal à 8, Phosphates of formula P (O) (ORi ') (OR 2 ') (OR 3 '), phosphite esters of formula P (ORi') (OR 2 ') (OR 3 '), phosphines of formula PRi 'R 2 ' R 3 'or phosphonates of formula P (O) (ORi') (OR 2 ') (R 3 ') in which the groups R 1 ', R 2 ' and R 3 'represent hydrocarbon radicals, alkyl or unsubstituted or optionally branched, saturated or unsaturated hydroxyl groups, the total number of carbon atoms of said phosphates being greater than or equal to 8,
• les sulfures de formule SRi "R2" dans laquelle les groupements Ri " , R2" représentent l'hydrogène ou des radicaux hydrocarbonés, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone desdits sulfures étant supérieur ou égal à 8, au moins un des groupements R"i et R"2 étant différent de l'hydrogène, et Sulphides of formula SRi "R 2 " in which the groups Ri ", R 2 " represent hydrogen or hydrocarbon, alkyl or alkylene radicals, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms of said sulfides being greater than or equal to 8, at least one of the groups R "1 and R" 2 being different from hydrogen, and
- des granulats, agrégats et/ou sable ou autres charges inertes.  - aggregates, aggregates and / or sand or other inert fillers.
2. Composition selon la revendication 1 caractérisée en ce que l'additif antipoussière est un composé choisi parmi les aminés aliphatiques de formule NRi R2R3 ou les phosphates de formule P(0)(ORi ' )(OR2' )(OR3' ) dans lesquelles les groupements Ri , R2, R3, et Ri ', R2' R3' identiques ou différents, représentent des radicaux hydrocarbonés linéaires, alkyles ou alkylènes, non substitués par un groupement hydroxyle, éventuellement ramifiés, saturés ou insaturés, le nombre total d'atomes de carbone étant supérieur ou égal à 8. 2. Composition according to claim 1 characterized in that the dust additive is a compound chosen from aliphatic amines of formula NRi R 2 R 3 or phosphates of formula P (O) (ORi ') (OR 2 ') (OR 3 ') in which the groups R 1, R 2 , R 3 , and R 1', R 2 'R 3 ' which are identical or different, represent linear hydrocarbon radicals, alkyl or alkylene, unsubstituted by a hydroxyl group, optionally branched, saturated or unsaturated, the total number of carbon atoms being greater than or equal to 8.
3. Composition selon l'une des revendications précédentes caractérisée en ce que ledit additif est un composé comprenant plus de 12 atomes de carbone, de préférence plus de 16 atomes de carbone. 3. Composition according to one of the preceding claims characterized in that said additive is a compound comprising more than 12 carbon atoms, preferably more than 16 carbon atoms.
4. Composition selon la revendication 1 à 3 caractérisée en ce que la teneur dudit additif est comprise entre 0, 1 et 2% en poids par rapport au poids total de la composition, de préférence entre 0,4 et 1 ,5% en poids. 4. Composition according to claim 1 to 3 characterized in that the content of said additive is between 0, 1 and 2% by weight relative to the total weight of the composition, preferably between 0.4 and 1.5% by weight. .
5. Composition selon l'une des revendications 1 à 4 caractérisé en ce que l'additif est un mélange de plusieurs composés organiques comprenant le même hétéroatome, l'un au moins un des composés présents dans le mélange comprenant au moins 8 atomes de carbone. 5. Composition according to one of claims 1 to 4 characterized in that the additive is a mixture of several organic compounds comprising the same heteroatom, at least one of the compounds present in the mixture comprising at least 8 carbon atoms. .
6. Composition selon l'une des revendications 1 à 5 caractérisée en ce que l'additif comprend en outre un composé permettant de réduire la polarité du ou des composés organiques comprenant un hétéroatome. 6. Composition according to one of claims 1 to 5 characterized in that the additive further comprises a compound for reducing the polarity of the organic compound or compounds comprising a heteroatom.
7. Composition selon la revendication 6 caractérisé en ce que la teneur en composé permettant de réduire la polarité est comprise entre 0, 1 et 1 % poids par rapport au poids total de la composition, de préférence entre 0, 1 et 0,40% poids. 7. Composition according to claim 6 characterized in that the content of compound for reducing the polarity is between 0.1 and 1% by weight relative to the total weight of the composition, preferably between 0.1 and 0.40%. weight.
8. Composition selon l'une des revendications 6 ou 7 caractérisé en ce que ledit composé permettant de réduire la polarité est choisi parmi les huiles minérales, les huiles paraffiniques, les polyoléfines ou leurs mélanges. 8. Composition according to one of claims 6 or 7 characterized in that said compound for reducing the polarity is selected from mineral oils, paraffinic oils, polyolefins or mixtures thereof.
9. Composition selon l'une des revendications 5 à 8 caractérisée en ce que l'additif est sous forme d'émulsion. 9. Composition according to one of claims 5 to 8 characterized in that the additive is in emulsion form.
10. Composition selon l'une des revendications précédentes caractérisée en ce que le liant minéral est au moins un composé choisi parmi : - un liant hydraulique choisi parmi les ciments Portland, les ciments alumineux, les ciments sulfoalumineux, les ciments bélitiques, les laitiers de haut fourneau, les ciments de mélange pouzzolaniques comprenant éventuellement des cendres volantes, des fumées de silice, du calcaire, du schiste calciné et/ou des pouzzolanes naturelles ou calcinées, seuls ou en mélange, 10. Composition according to one of the preceding claims characterized in that the inorganic binder is at least one compound selected from: a hydraulic binder chosen from Portland cements, aluminous cements, sulphoaluminous cements, belitic cements, blast furnace slags, pozzolanic mixture cements possibly comprising fly ash, silica fumes, limestone, calcined shale and / or natural or calcinated pozzolans, alone or as a mixture,
- une source de sulfate de calcium,  a source of calcium sulphate,
- de la chaux.  - lime.
1 1 . Composition selon l'une des revendications 1 à 10 caractérisée en ce qu'elle comprend en outre une poudre de polymère hydrodispersible et/ou un latex. 1 1. Composition according to one of claims 1 to 10 characterized in that it further comprises a water-dispersible polymer powder and / or a latex.
12. Composition selon l'une des revendications 1 à 1 1 caractérisée en ce qu'elle comprend en outre des charges ou fillers, calcaires ou siliceux. 12. Composition according to one of claims 1 to 1 1 characterized in that it further comprises fillers or fillers, limestone or siliceous.
13. Composition selon l'une des revendications 1 à 12 caractérisée en ce qu'elle comprend en outre des agents rhéologiques, des agents rétenteurs d'eau, des agents entraîneurs d'air, des agents épaississants, des agents de protection biocides, des fongicides, des agents dispersants, des pigments, des accélérateurs et/ou des retardateurs. 13. Composition according to one of claims 1 to 12 characterized in that it further comprises rheological agents, water-retaining agents, air-entraining agents, thickening agents, biocidal protective agents, fungicides, dispersing agents, pigments, accelerators and / or retarders.
14. Procédé de préparation d'une composition selon l'une des revendications précédentes caractérisé en ce que l'additif est d'abord ajouté aux sables, granulats et/ ou agrégats ou charges inertes présents dans la composition, le mélange obtenu étant ensuite mélangé avec le liant minéral et les additifs ou adjuvants éventuellement présents. 14. Process for the preparation of a composition according to one of the preceding claims, characterized in that the additive is first added to the sands, aggregates and / or aggregates or inert fillers present in the composition, the mixture obtained being then mixed. with the mineral binder and any additives or additives present.
15. Matériaux de construction à base de liant minéral tels que des mortiers, des enduits, des plâtres, des chapes ou des joints de carrelage comprenant la composition selon l'une des revendications 1 à 12 mélangée avec de l'eau. 15. Building materials based on inorganic binder such as mortars, plaster, plaster, screeds or tile joints comprising the composition according to one of claims 1 to 12 mixed with water.
PCT/FR2014/050417 2013-03-01 2014-02-26 Anti-dust mortar composition WO2014131993A1 (en)

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FR1351839 2013-03-01
FR1351839A FR3002769B1 (en) 2013-03-01 2013-03-01 ANTI-DUST MORTAR COMPOSITION

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CN112062523A (en) * 2020-08-31 2020-12-11 中国矿业大学 Thin-spraying material for reinforcing, beautifying and supporting sealing of coal mine roadway and preparation and use methods thereof

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WO2006084588A2 (en) 2005-02-09 2006-08-17 Henkel Kommanditgesellschaft Auf Aktien Use of aliphatic hydrocarbons and hydrocarbon mixtures in powdery chemical products for construction
DE202006016797U1 (en) * 2006-11-03 2006-12-28 Pci Augsburg Gmbh Dry mortar contains dust-reducing additive, e.g. alcohol, polyethylene glycol, polyvinyl alcohol, ether, organic acid, alkanolamine, ester, ketone, silicone oil, polysiloxane-polyether copolymer, silicic acid, animal or vegetable oil or wax
US20070048490A1 (en) * 2005-06-09 2007-03-01 United States Gypsum Company Low dust gypsum wallboard
EP1783105A1 (en) 2005-11-04 2007-05-09 S.A. Lhoist Recherche Et Developpement Mortar composition, process for the production and use thereof
WO2012017169A1 (en) 2010-08-03 2012-02-09 Bostik S.A. Pulverulent mortar composition having improved adhesion

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Publication number Priority date Publication date Assignee Title
AU422465B2 (en) * 1968-09-17 1972-03-17 Aminoplast modified phenol-aldehyde resole resin binder compositions and their uses
WO2006084588A2 (en) 2005-02-09 2006-08-17 Henkel Kommanditgesellschaft Auf Aktien Use of aliphatic hydrocarbons and hydrocarbon mixtures in powdery chemical products for construction
US20070048490A1 (en) * 2005-06-09 2007-03-01 United States Gypsum Company Low dust gypsum wallboard
EP1783105A1 (en) 2005-11-04 2007-05-09 S.A. Lhoist Recherche Et Developpement Mortar composition, process for the production and use thereof
DE202006016797U1 (en) * 2006-11-03 2006-12-28 Pci Augsburg Gmbh Dry mortar contains dust-reducing additive, e.g. alcohol, polyethylene glycol, polyvinyl alcohol, ether, organic acid, alkanolamine, ester, ketone, silicone oil, polysiloxane-polyether copolymer, silicic acid, animal or vegetable oil or wax
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112062523A (en) * 2020-08-31 2020-12-11 中国矿业大学 Thin-spraying material for reinforcing, beautifying and supporting sealing of coal mine roadway and preparation and use methods thereof
CN112062523B (en) * 2020-08-31 2021-07-27 中国矿业大学 Thin-spraying material for reinforcing, beautifying and supporting sealing of coal mine roadway and preparation and use methods thereof

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EP2961718A1 (en) 2016-01-06
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AR094853A1 (en) 2015-09-02

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