FR2839076A1 - Nonflammable emulsion paint for aerosol application, useful for painting metals and other substrates, comprises water, an organic resin, a coalescer and fillers - Google Patents

Abstract

Nonflammable emulsion paint for aerosol application comprises water, an organic resin, a coalescer and fillers. An Independent claim is also included for a nonflammable aerosol comprising the paint and a propellant.

Description

of punch, ons (20).

  Non-flammable paint composition in aqueous emulsion and aerosol containing it.

  The present invention relates to the aerosol and the application of a paint without an aromatic solvent (water) for use: painting cite routiere - paint for primary anti-corrosion on ferrous metals painting cite finish, matte or gloss metallizede , on all metals or other supports that can be painted. All these operations were

  performed with petroleum solvents.

  The new formulation uses new, harmless products to reduce air pollution. reduction of VOC in atmosphere reducing emissions of vapors

  reduced risk of intoxication by the user.

  reduction or elimination of fire risks, non-labeling of the flame on the aerosol.

  aerosol water products compared with solvent-based petroleum products

  hygiene and the environment of nature.

  when the aerosol is vice it can be recycled without risk of explosion.

  that water-based paints are as resistant as those that are solvent, and less harmful.

  For propellants: the order of the day will be preferably to use non-flammable gases. Tests have been carried out with existing flammable propellants currently on the market, but not retained because of the "flame" symbol on the aerosol. , butane type, propane

DME, as well as DME + solvent.

  Successful tests with non-flammable propellants have been developed but more complex for the

  implementation, type N2, N2 0, .CO2 ,. HFC ..

  The pocket aerosol system would be even more ecological and will be unavoidable in the future, given the results obtained, and will be used for capital-cost paints.

  the purchase price of the higher pocket currently.

Emulsions.

  An emulsion is a resin that has been rendered water-soluble (miscible with water, whatever the percentage of water). The basic aqueous emulsions of the monomers grafted onto polymeric or base copolymer radicals which are intended, when assembled together or to another family, to allow polymerization with the aid of a solvent or a solvent.

  coalescing agent that through the oxygen will allow the paint to harden.

  The combination of the bases used to formulate an aqueous paint is a base of monomers or pure acrylic copolymer, or as a support, the styrene base as a common core, assembles either an acrylic, a vinyl, a butadiene, a latex, this base with all radicals, makes it possible to obtain an emulsion that can be applied to all

  supports, each having its specialty.

  The solvents may be of the petroleum type with cuts or acetates, ethyls, butylglycol, ethylglycol or all

which is attached to an acetate.

  In the family of glycol ethers, mention may be made of PM-DPM-DPNB-EPH as well as that which contains an ester or a

propanol.

  This family may be hydrophilic or hydrophobic, the coalescing agent may be a monoisobutyrate of

2,2,4-trimethyl-1,3 pentanediol.

- 2

  The surfactant will be anionic or nonionic.

  The dispersant will be anionic or nonionic aqueous type acrylate, ammonium polyacrylate, ume base

  modified phosphonate and all that relates to an ammonium or alkylammonium salt and derivatives.

  The denomination pigment will be in powder or paste, will include the base pigments: type titanium oxide for light colors, for all other colors, it will be from organic pigments, iron oxide, chromium oxide or

other oxides.

  Other fillers will be talc or all types and forms of carbonate or barium sulphate, for anti-corrosion pigments,

  the charges will be based on modified sulphate and phosphate type ZMP or alcofor 827 or butrol.

  The thickeners will be of the CMC / HEC, bentone, syloid or amorphous or pyrogenic silicas type or all products

  allowing to give rise to increase or decrease the viscosity.

  For epoxy systems, polyurethane, polyester, water, two-component, the percentage of resin to hardener will be calculated at each foist Resin producers and hardeners do not always have the same equivalence and% NCO in hardener and hydroxyl in resin and it will be necessary to make a ratio according to their

  abacuses to have a good curing of paint at room temperature.

  For all paint systems, an anti-polymerization additive and conservation of a few ppm will be introduced.

Formulation

  The% will be different for each application.

  The denomination charge gathers for all the systems present, will be in powder or other micronised products for

  ensure hiding power or as an anti-corrosion additive.

  Road Paint Resine 46.60% Antifoam 0.27% Surfactant 0.29% Dispersant 0.82% Load 25.23%% Water 21.81% Coalescent 3.80% Alcohol 1.1 8% Polyurethane Paint Resine Surfactant 64.64% Coalescing Loads 12. 59%% Water 20 00 to Anti-corrosion Paint Resine Water 27.31% Dispersant Anti foam 1.17% Ammonia 0.12% Loads 1.21% Coalescent 24.40% Thickener 14 587% Fruity paint Hydroxyethyl cellulose 25% Water 7.207% Dispersant 17.291% Surfactant 1.271% Fungicide 0.212% Coalescent 0.153% Loads 6.061% Ammonia 28.47% Antifoam 0.169% Resine 39 081%

Explanatory annex.

  The emulsions which gave satisfactory results are: ** << DM 109 >> Anti-corrosion primer

** << AG 88 ER >>

  * << AC 388 ER >> finish << Primal 27 06 >> horizontal tread o << Fastrack 53 >> << Neocryl AS 10 >> << Neocryl A513 >>

  << XZ 9197500 >>

  << RT4 805 >>

  **** hybridur polyurethane solhorizontaletvertical *** << Neocryl AP 2860 >> *** << Neorez R 974 >> *** << Neocryl XK 62 >> **** << Neopace E 121 >> horizontal epoxy (ground) s

Claims (6)

  1) Non-flammable aerosol aqueous emulsion paint composition characterized in that it comprises: - water, an organic resin, a coalescing agent, - charges.   2) aqueous emulsion paint composition according to claim 1, characterized in that the coalescing agent or solvent is selected from glycol ethers optionally combined with a propanol, an ester   especially pentanediol monoisobutyrate; an acetate of ethyl or butyl or ethylglycol.   3) Paint composition according to claims 1 and 2 characterized in that the selected wind loads   among the mineral pigments, the organic dyes the thickeners and possibly an anti-corrosion agent.   4) A paint composition according to any one of claims 1, 2 or 3, characterized in that the resin   is chosen in particular from acrylic, vinyl, styrenebutadiene and latex resins or mixtures of these relines.   ) Paint composition according to any one of claims 1, 2 and 3 in two-component form   characterized in that on the one hand the resin is selected from epoxy resins, polyurethane, polyester and   on the other hand a hardener is an isocyanate and a hydroxylated resin.   6) Non-flammable aerosol characterized in that it comprises a composition according to claim 1 and a propellant.   7) Aerosol according to claim 6, characterized in that the propellant is nitrogen, protoxide