Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/41—Organic pigments; Organic dyes
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/20—Carboxylic acid amides
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
  • C09D133/04—Homopolymers or copolymers of esters
  • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
  • C09D133/08—Homopolymers or copolymers of acrylic acid esters
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/60—Additives non-macromolecular
  • C09D7/63—Additives non-macromolecular organic
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/07—Aldehydes; Ketones
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/315—Compounds containing carbon-to-nitrogen triple bonds

Definitions

• the invention relates to a film-forming composition for application to an interior surface of a building, which contains an agent capable of trapping formaldehyde.
• a wide variety of materials are used for the construction and interior design of residential and office buildings. Some of these materials such as acoustic and / or thermal insulation, wood panels, furniture and decorative elements use adhesives, paints and varnishes using formaldehyde.
• water-based paints which contain, as an agent capable of reducing the amount of formaldehyde, an amino acid or a salt thereof, a peptide or a sulfite (CN-A-101016426).
• the present invention aims to reduce the amount of formaldehyde present inside buildings.
• the present invention provides a film-forming composition which contains an agent capable of trapping formaldehyde.
• film-forming composition is meant a composition capable of forming a film or a film by starting from the dispersion medium initially contained in said composition. The film obtained is adherent to the support on which the film-forming composition has been applied.
• the film-forming composition according to the invention is a paint or a varnish.
• agent capable of reacting with formaldehyde is meant an organic compound which binds to formaldehyde by a covalent bond.
• the agent capable of reacting with the formaldehyde according to the invention is chosen from:
• the active methylene compounds preferably having the following formulas:
• p is an integer ranging from 1 to 6
• R 3 represents a hydrogen atom, a C 1 -C 10 alkyl radical, a phenyl radical or a halogen atom
• - b is equal to 0 or 1
• n 1 or 2
• R 1 -CH 2 -CH 3 ;
• R 2 -CH 2 -CH 3 ;
• R 3 H;
• n 1
• Ri -CH 3 ;
• R 2 -CH 2 -CH (CH 3 ) 2 ;
• R 3 H;
• a 0;
• b 1;
• n 1
• Ri -CH 3 ;
• R 2 - (CH 2 ) 5 -CH 3 ;
• R 3 H;
• a 0;
• b 1;
• n 1;
• R 1 -CH 2 -CH 3 ;
• R 2 -CH 2 -CH 3 ;
• R 3 H;
• a 1;
• b 1;
• n 1
• R 1 - (CH 2 ) 2 -CH 3 ;
• R 2 - (CH 2 ) 2 -CH 3 ;
• R 3 H;
• a 1;
• b 1;
• n 1
• R 1 -CH (CH 3 ) 2 ;
• R 2 -CH (CH 3 ) 2 ;
• R 1 - (CH 2 ) 3 -CH 3 ;
• R 2 - (CH 2 ) 3 -CH 3 ;
• R 3 H;
• a 1;
• b 1;
• n 1
• Ri -CH 3 ;
• R 2 - (CH 2 ) 4 -O-CO-CH 2 -CO-CH 3 ;
• R 3 H;
• a 0;
• b 1;
• Ri -CH 3 ;
• R 2 - (CH 2 ) 6 -O-CO-CH 2 -CO-CH 3 ;
• R 3 H;
• a 0;
• b 1;
• Ri -CH 3 ;
• R 3 H;
• R6 represents a cyano radical or a radical C (O) c R 8
• - Rs represents a hydrogen atom, a C1-C20 alkyl radical, preferably C1-C6, or an amino radical;
• R 7 represents a hydrogen atom, a C 1 -C 10 alkyl radical, a phenyl radical or a halogen atom.
• R 6 -CO-O- (CH 2 ) 2 -CH 3 ;
• R 7 H
• R 6 -CO-O- (CH 2 ) 3 CH 3 ;
• R 7 H
• R 6 -CO-O-CH 2 -CH (CH 3 ) 2 ;
• R 7 H
• Rg represents a radical
• q is an integer ranging from 1 to 4
• r is equal to 0 or 1
• tannins especially condensed, such as tannins of mimosa, quebracho, pine, pecan nuts, hemlock wood and sumac.
• Amides for example urea, 1,3-dimethylurea, ethyleneurea and its derivatives such as N-hydroxyethyleneurea, N-aminoethylethyleneurea, N- (3-allyloxy-2-hydroxypropyl) aminoethylethyleneurea, N-acryloxyethylethyleneurea, N-methacryloxethylethyleneurea, N-acrylaminoethylethyleneurea, N-methacrylaminoethylethyleneurea, N-methacryloxyacetoxyethyleneurea, N-methacryloxyacetaminoethylethyleneurea and N-di (3-allyoxy).
• the amount of formaldehyde-entraining agent to be used may vary to a large extent depending on the type of film-forming composition used and the desired use.
• the agent capable of trapping formaldehyde represents 0.05 to 35% by weight of the dry matter of the film-forming composition, preferably from 1 to 20%, and more preferably from 4 to 10%.
• the agent capable of reacting with formaldehyde may also be chosen from the following hydrazides, provided that its content represents at least 4% by weight of the dry matter of the film-forming composition, preferably 6 to 30% and advantageously 10 to 20% by weight.
• % a) monohydrazides of formula R1CONHNH2 in which R1 represents an alkyl radical, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or tert-butyl, or an aryl radical, for example phenyl , biphenyl or naphthyl, it being understood that a hydrogen atom of said alkyl or aryl radicals may be replaced by a hydroxy group or a halogen atom, and said aryl radical may be substituted by an alkyl radical, for example methyl, ethyl or n-propyl, b) dihydrazides of formula H 2 NHN-X-
• oxalic acid dihydrazide malonic acid dihydrazide, succinic acid dihydrazide, adipic acid dihydrazide, sebacic acid dihydrazide and maleic acid dihydrazide.
• c) polyhydrazides such as trihydrazides, especially citric acid trihydrazide, pyromellitic acid trihydrazide, 1,2,4-benzenetrihydrazide, nitriloacetic acid trihydrazide and trihydrazide cyclohexanetricarboxylic acid, tetrahydrazides, especially ethylenediaminetetraacetic acid tetrahydrazide, 1, 4,5,8-naphthoic acid tetrahydrazide, and polyhydrazides formed from a hydrazide monomer containing a polymerizable group, for example a poly (acrylic acid hydrazide) or
• the film-forming composition according to the invention is a fluid, liquid or having a slightly pasty consistency, which can spread in a thin layer on a material to form after drying (hardening) a thin coating (film or film) adherent and resistant having a protective and / or decorative role.
• the film-forming composition may be used in particular as a primer or a paint.
• the film-forming composition comprises a dispersion medium, a binder, pigments, fillers and additives.
• the dispersion medium acts as inert solvent or dispersant of the aforementioned constituents and also makes it possible to adjust the viscosity and the rheology of the film-forming composition in order to ensure easy application to the material to be coated.
• the dispersion medium may be water or an organic solvent.
• Water generally represents 30 to 95% of the total weight of the film-forming composition.
• the organic solvent may be chosen from hydrocarbons, for example white spirit, turpentine, monochlorobenzene and 1,2-dichlorobenzene, alcohols, for example ethyl, isopropyl, n-butyl and ethyl alcohol.
• glycol ethers for example butylglucol, alkyldiglycols, butylglutol acetate and propylene glycol ethers
• esters for example ethyl acetate, isopropyl
• amyl and butylglucol and ketones for example methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, isophorone and diacetone alcohol.
• the dispersion medium may also consist of a mixture of water and a small proportion of at least one of the abovementioned organic solvents, the function of which is to increase the solubilization of the binder and thus acts as a cosolvent .
• the proportion of co-solvent generally represents at most 5% of the total weight of the film-forming composition.
• the binder ensures the bond between all the constituents and allows the film-forming composition to adhere to the material to which it is applied.
• the binder may be of natural origin, for example a drying oil (glycerol ester and fatty acid (s)), a gum or a natural resin (damar, copal, shellac or rosin ), or of synthetic origin, for example a rubber derivative (cyclized or chlorinated rubber), a cellulose derivative (cellulose nitrocellulose, acetate, propionate or acetobutyrate), a vinyl resin (polyvinyl acetate, copolymer of chloride of vinyl, vinyl propionate copolymer), an alkyd resin (polyalcohol and phthalic diacid ester (s)), an acrylic resin (methyl or ethyl poly (meth) acrylate), a saturated or unsaturated polyester a polyepoxide (obtained by reaction of epichlorohydrin and bisphenol A and / or F), an aminoplast (urea-formaldehyde or melamine-formaldehyde resin), a phenolic
• the proportion of binder is generally 5 to 65% by weight of the dry matter of the film-forming composition.
• the pigments impart opacity and color to the film-forming composition and further contribute to improving the physical properties of the film, including its hardness, impermeability, or corrosion resistance.
• the pigments are pulverulent solids, of very fine particle size (generally less than 1 ⁇ ), insoluble in the dispersion medium.
• the pigments may be inorganic, for example metal, metalloid and / or alkali oxides (titanium, zinc, chromium, antimony, nickel, lead, potassium, molybdenum) and metal sulphides, especially zinc and / or cadmium.
• metal, metalloid and / or alkali oxides titanium, zinc, chromium, antimony, nickel, lead, potassium, molybdenum
• metal sulphides especially zinc and / or cadmium.
• the pigments may also be organic, for example azo derivatives, phthalocyanine, anthraquinone, perylene or thioindigo derivatives, isoindoline or isoindolinone pigments, quinacridone, dioxazine or diketopyrrolopyrrole pigments, and carbon black.
• organic for example azo derivatives, phthalocyanine, anthraquinone, perylene or thioindigo derivatives, isoindoline or isoindolinone pigments, quinacridone, dioxazine or diketopyrrolopyrrole pigments, and carbon black.
• the pigments may also be effect pigments, for example aluminum pigments for the production of "metallized” paints, or nacres, in particular based on micas coated with mineral (titanium dioxide or iron oxide) or organic (phthalocyanine) layers.
• effect pigments for example aluminum pigments for the production of "metallized” paints, or nacres, in particular based on micas coated with mineral (titanium dioxide or iron oxide) or organic (phthalocyanine) layers.
• the charges contribute to the improvement of the mechanical, chemical and rheological properties. They are pulverulent solids of greater particle size than pigments (greater than 1 ⁇ ), essentially mineral, of white color, insoluble in the dispersion medium and having little or no opacifying power.
• the fillers are, for example, calcium carbonate, calcium sulphate, barium sulphate, kaolin, talc, calcium silicate and silicas (quartz, amorphous silica and diatoms).
• the pigments and fillers constitute the solid charge of the film-forming composition.
• the quantity of pigments and fillers generally represents 10 to 95% by weight of the dry matter of the film-forming composition, preferably 35 to 95% by weight of the dry matter.
• the additives are auxiliary products present in the film-forming composition in a small amount, generally 0.3 to 5% by weight of the dry matter of the film-forming composition, preferably 1 to 3%.
• additives are, for example, rheological agents which assist in the application of the film-forming composition with a large thickness and provide storage stability (bentonite, hydrogenated castor oil, polyamide resin); dispersants and wetting agents for pigments and fillers (soy lecithin, polyacrylate, silicones); anti-bubble agents (polyacrylate, silicones); anti-skin agents (oximes, for example methyl ethyl ketoxime and cyclohexanoximes); spreading agents (glycols ethers and esters, silicone oils, fluorinated derivatives); matting agents (silicates, silica, polyethylene waxes); plasticizers (chlorinated or non-chlorinated hydrocarbons, vinyl polyethers); lubricants (calcium stearate and polyols) catalysts (tin dibutyldilaurate) and siccatives (lead and cobalt naphthenate and octanoate); preservatives (bioc
• the film-forming composition according to the invention can be easily prepared by the means known to those skilled in the art, for example by incorporating the agent capable of trapping formaldehyde during the preparation of the film-forming composition, together with the binder, the pigments, fillers and / or additives, or more simply by adding said agent in a conventional film-forming composition.
• This last mode of preparation is preferred.
• the addition of the agent capable of trapping formaldehyde is preferably with stirring so as to obtain a homogeneous mixture.
• the film-forming composition according to the invention is applied to the desired support under the same conditions as a conventional film-forming composition which does not contain any agent capable of trapping formaldehyde, for example by the techniques of coating, "casting", spraying, soaking or dipping.
• the material to which the film-forming composition according to the invention can be applied depends essentially on the nature of the dispersion medium (water or organic solvent). These include wood, plaster, concrete, cement, wood, metal, wall coverings, including sails and fiberglass-based paint cloths.
• the film-forming composition is a water-based paint which is applied to a material, in particular a glass fiber painting fabric, which already contains an agent capable of trapping formaldehyde, which makes it possible to lower still the level of formaldehyde inside buildings.
• the film-forming composition is an acrylic paint containing water, a binder, pigments and adjuvants (Evolutex® reference marketed by Sigma Coating, dry matter content: 58%).
• the film-forming composition thus obtained is applied with a roller to a painting cloth and allowed to dry.
• the painted canvas contains 217.5 g / m 2 of paint and 14 g / m 2 of acetoacetamide.
• This fabric is subjected to formaldehyde absorption and desorption tests under the following conditions.
• a sample of the painted fabric is placed in a device conforming to ISO 16000-9, modified in that the relative humidity is 50% in the test chamber containing the sample to be analyzed and in the chamber reference containing no sample of the painted canvas.
• test chamber and the reference chamber are fed continuously with a flow of air containing about 140 ⁇ g / m 3 of formaldehyde for 4 days.
• the amount of formaldehyde in the air leaving the test and reference chambers is measured at different times and the percentage of formaldehyde adsorbed by the painted fabric is calculated.
• test chamber and the reference chamber are fed with air containing no formaldehyde for 48 hours and the amount of formaldehyde present in the air at the outlet of said chambers is measured at different deadlines.
• Formaldehyde is measured by liquid chromatography (HPLC) under the conditions of ISO 16000-3.
• Example 1 Reference a) adsorbed formaldehyde (ig / m 0 )
• Example 1 makes it possible to trap a large part of the formaldehyde present in the air (approximately 50% over the duration of the test). The amount of entrapped formaldehyde is constant over the duration of the test.
• the formaldehyde emission level of the painted fabric of Example 1 in step b) is similar to that of the reference.
• Example 1 The procedure is carried out under the conditions of Example 1 modified in that the film-forming composition is applied to a painting fabric containing 5 g / m 2 of acetoacetamide.
• the painted canvas contains 217.5 g / m 2 of paint and 19 g / m 2 of acetoacetamide.
• Example 2 The part of formaldehyde trapped in Example 2 is higher (about 75% over the duration of the test) than in Example 1 (about 50%). The amount of entrapped formaldehyde varies little in step a).
• the formaldehyde emission level of the painted fabric of Example 2 in step b) is similar to that of the reference.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Medicinal Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Polymers & Plastics (AREA)
• Paints Or Removers (AREA)
• Building Environments (AREA)
• Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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Citations (14)

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• 2009
  • 2009-11-03 FR FR0905272A patent/FR2952067B1/fr active Active
• 2010
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  • 2010-11-03 MX MX2012005133A patent/MX2012005133A/es active IP Right Grant
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  • 2010-11-03 RU RU2012122795/05A patent/RU2558104C2/ru active
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  • 2010-11-03 EP EP10792960.6A patent/EP2496649B2/fr active Active
  • 2010-11-03 CN CN201080060491.9A patent/CN102666741B/zh not_active Expired - Fee Related
  • 2010-11-03 WO PCT/FR2010/052352 patent/WO2011055073A1/fr not_active Ceased
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