CN101547876A - Coating systems for cement composite articles - Google Patents

Coating systems for cement composite articles Download PDF

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Publication number
CN101547876A
CN101547876A CNA2007800329657A CN200780032965A CN101547876A CN 101547876 A CN101547876 A CN 101547876A CN A2007800329657 A CNA2007800329657 A CN A2007800329657A CN 200780032965 A CN200780032965 A CN 200780032965A CN 101547876 A CN101547876 A CN 101547876A
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China
Prior art keywords
acid
latex polymer
vanish system
latex
coating composition
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Pending
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CNA2007800329657A
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Chinese (zh)
Inventor
阿奇·W·加纳
T·霍华德·基利勒
卡尔·L·卡瓦琳
凯文·W·埃文森
丹·哈婷尔
拉里·B·勃兰登博格
托得·A·彼得森
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Sherwin Williams Co
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Valspar Sourcing Inc
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Publication of CN101547876A publication Critical patent/CN101547876A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/10Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/14Polyepoxides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48Macromolecular compounds
    • C04B41/483Polyacrylates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61Coating or impregnation
    • C04B41/62Coating or impregnation with organic materials
    • C04B41/63Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61Coating or impregnation
    • C04B41/70Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • C04B41/71Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F291/00Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating 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
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/06Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/062Copolymers with monomers not covered by C09D133/06
    • C09D133/068Copolymers with monomers not covered by C09D133/06 containing glycidyl groups
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating 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
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/14Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D151/00Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/003Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0045Polymers chosen for their physico-chemical characteristics
    • C04B2103/0065Polymers characterised by their glass transition temperature (Tg)
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)

Abstract

The present invention provides a coating composition, a method of coating a substrate, and a coated substrate, (e.g., a coated cement fiberboard article). In preferred embodiments the coating composition includes one or more latex polymers and an aliphatic epoxy resin system, The coating composition can include one or more coating compositions that may be applied in one or more layers. A coated article comprising a cement fiberboard substrate and a coating system applied to the substrate is also provided, The article includes a first coating system applied to the substrate, wherein the first coating system includes an aliphatic epoxy resin system having an aqueous dispersion of polymer particles, optionally a silicate additive, and optionally one or more olefinic compounds and initiator for same, The first coating system preferably includes one or more coating compositions that may be applied in one or more layers, In a preferred embodiment, the first coating system is applied to all the surfaces of the substrate (e.g., the front side, back side and edges of a board). The coated substrate may then be coated with other optional coatings, e.g., decorative or protective topcoats.

Description

The vanish system that is used for cement composite articles
The cross reference of related application
The application requires to enjoy the right of priority of U.S. Provisional Application series number of submitting on July 7th, 2,006 60/819,505 and the U.S. Provisional Application series number of submitting on January 30th, 2,007 60/898,621, and its disclosure is incorporated this paper into way of reference.
Background of invention
Cement composite articles uses in material of construction more and more at large.Many in these goods by material manufacturing such as cheapnesss such as cement, wooden (Mierocrystalline cellulose) fiber, natural (glass) fiber and polymkeric substance.These goods are made into the form of cement fiberboard substrate such as wallboard and wallboard usually.The method of use such as extrusion molding or utilize the Hatschek method can make base material or goods.
Under the northerly weather, because of be absorbed into water in the cement fiberboard substrate freeze repeatedly and melt the damage that causes represented a kind of problem deserving of attention.The influence that is subjected to moisture, freeze-thaw cycle, UV irradiation and Atmospheric Carbon Dioxide constantly can cause the goods by the manufacturing of cement fibrolite plate composition physical change and chemical transformation to take place in time and also damage combination with decorative surfaces.Vanish system or coating composition can help to avoid to be subjected to the influence such as environment such as UV lamp, carbonic acid gas and water, perhaps can help to reduce because of the contingent damage of the influence that is subjected to these environment.Can obtain several such systems and protect cement fiberboard article.Yet, concerning vanish system and coating composition, when goods experience wet adhesion test that is coated with composition and freeze-thaw cycle repeatedly, good sealing need be provided, have the result that rapid solidified ability maybe can provide improvement.
General introduction
In one aspect, the invention provides coating composition with one or more latex polymers and aliphatic epoxy resin system.In certain embodiments, aliphatic epoxy resin is different with one or more latex polymers.In other embodiments, aliphatic epoxy resin is a wherein a kind of part or the wherein multiple part of one or more latex polymers.In certain embodiments, the functional components of the oxyethane in the aliphatic epoxy resin system can have the epoxy equivalent (weight) less than about 1000.Coating composition can comprise one or more coating compositions that can be applied one or more layers.
On the other hand, the invention provides the coated article that comprises cement fiberboard substrate and be applied to the vanish system of this base material.These goods comprise first vanish system that is applied to base material, and wherein first vanish system comprises the aliphatic epoxy resin system of (aqueous dispersions ofpolymer particles) that has one or more aqueous dispersion of polymer particles, silicate additive and one or more olefinic compounds and the initiator that is used for this olefinic compounds alternatively alternatively.First vanish system preferably includes one or more coating compositions that can be applied one or more layers.In preferred embodiments, aqueous polymer dispersion is a latex polymer, and epoxy resin system comprises trihydroxymethylpropanyltri diglycidyl ether and amine, and optionally the silicate additive comprises potassium silicate.In still another preferred embodiment, each coating composition all is an aqueous composition.
On the other hand, coated article comprises: cement fiberboard substrate and be applied to first vanish system of this base material, wherein first vanish system comprises: epoxy functionalized latex polymer, amine aqueous solution, silicate additive and one or more olefinic compounds and the initiator that is used for this olefinic compounds alternatively alternatively.
On the other hand, optional second vanish system can be applied on first vanish system.Optional second vanish system preferably includes functionalized latex polymer or multistage latex polymer or functionalized multistage latex polymer.More preferably, second vanish system comprises the functional multistage latex polymer of acetoacetyl.
On the other hand, the invention provides a kind of method that is used to prepare coated article, this method comprises provides cement fiberboard substrate, with at least a portion and the radiation curable coating of above-mentioned vanish system coated substrate.
General introduction above the present invention is not intended to describe each disclosed embodiment of the present invention or each embodiment.Require from specification sheets, accompanying drawing and Accessory Right, other features of the present invention, purpose and advantage will be tangible.The embodiment of being explained is more specifically for example understood in following description.Place, several place in whole application provides guiding by cited embodiment, and wherein embodiment can use by different combinations.In each case, the content of being stated is as just representational one group of content, and should not be interpreted as unique content.
Set forth the details of one or more embodiments of the present invention in accompanying drawing below and the description.Require from specification sheets, accompanying drawing and Accessory Right, other features of the present invention, purpose and advantage will be tangible.
The accompanying drawing summary
Fig. 1 is the schematic cross section of coated fibres cement products.
In the different numeral of accompanying drawing, identical reference symbol indicates components identical.Element in the accompanying drawing is not proportional.
Describe in detail
" epoxy coating system (epoxy coating system) " or " epoxy resin system " or " epoxy functionalized latex system " expression has the multi-component coating system of at least two kinds of components, the first component contain Oxyranyle (as, epoxy functionalized coating composition or epoxy functionalized latex polymer) and second component have can with the reactive group of oxirane radical reaction (such as, epoxide-reactive functional group). These groups can react to solidify, polymerization or crosslinked coating system.
The aqueous dispersion of polymer beads has comprised the meaning of latex polymer and water dispersible polymers.
" latex " polymer be illustrated in the auxiliary dispersants of water and one or more or emulsifying agent (as, surfactant, alkali-soluble polymer or its mixture) existence under dispersion or the emulsion of the polymer beads that forms, need to exist described auxiliary dispersant or emulsifying agent to form dispersion or emulsion. Should usually after forming, from polymer, separate in polymer by auxiliary dispersant or emulsifying agent. In some embodiments, when polymer beads formed, reactive dispersant or emulsifying agent can become the part of polymer beads.
" water is dispersible " polymer represents self can be combined with water and the aqueous dispersion that do not need to obtain polymer beads with auxiliary dispersant or emulsifying agent or the polymer of aqueous emulsions that the aqueous dispersion of this polymer beads or aqueous emulsions have the storage stability of at least one month under the normal storage temperature.
When using with respect to latex, term " multistage (multistage) " expression latex polymer is made with discontinuous charging (charge), wherein every kind of charging comprises one or more monomers, or make with the continually varying charging of two or more monomers. Multistage latex will can not demonstrate single Tg flex point usually, as using dsc measurement Tg flex point. The DSC curve of the multistage latex of for example, making with the discontinuous charging of one or more monomers can demonstrate two or more Tg flex points. The DSC curve of the multistage latex made from the charging of the continually varying of two or more monomers in addition, can not demonstrate the Tg flex point. Make an explanation further, monomer is feeded or the DSC curve of the single-stage latex that the constant Cosmetic material of two kinds of monomers is made can only demonstrate single Tg flex point with singly planting. When observing once in a while when only having a Tg flex point, may be difficult to determine whether this latex represents multistage latex. In this case, sometimes can detect by more careful observation lower Tg flex point, perhaps can check for the preparation of the synthetic schemes of latex and determine whether multistage latex will be supposed to obtain.
Term " one (a) ", one (an) ", " should (the) ", " at least one " and " one or more " be used interchangeably. Therefore, the coating composition that for example comprises " a kind of " amine may be interpreted as this coating composition of expression and comprises " one or more " amine.
All numerals that the number range of describing with end points is included in this scope to be comprised (comprising 1,1.5,2,2.75,3,3.80,4,5 etc. such as 1 to 5).
When term " comprises " and its version when appearing in specification sheets or the claim that such term does not have restrictive, sense.As comprise that the composition of wax compound represents that said composition comprises one or more wax compounds therefore.
Term " acrylate " and " methacrylic ester " are meant the ester of acrylic acid ester and methacrylic acid respectively.They can be called as (methyl) acrylate ((meth) acrylate) or (methyl) acrylate ((meth) acrylate ester).
Term " olefinic compounds " is meant any monomer, oligopolymer or the polymkeric substance that comprises reactive ethylene type degree of unsaturation, as vinyl, (methyl) acrylate, vinyl ether, allyl ethers, vinyl ester, unsaturated oil (comprising monoglyceride, triglyceride and triglyceride level), unsaturated fatty acids and analogue.Term " ethylenic group " refers to the reactive ethylene type unsaturated functional group in the olefinic compounds.
Term " preferably " and " preferably " refer to can provide in some cases the embodiment of some benefit.Yet under identical or other situations, other embodiments also can be preferred.And, one or more preferred embodiments are described in detail in detail and do not mean that other embodiments are disabled, and do not expect other embodiments are got rid of outside scope of the present invention.
Term " organic group " refers to have in the chain hydrocarbon (as the alkyl) group such as non-carbon such as oxygen, nitrogen, sulphur and silicon and non-hydrogen optional elements, and it is divided into the combination (as alkaryl or aralkyl) of aliphatic group, cyclic group or aliphatic group and cyclic group.Term " aliphatic group " refers to saturated or unsaturated straight or branched alkyl.For example, this term is used for comprising alkyl, alkenyl and alkynyl.Term " alkyl " refers to saturated straight or branched alkyl, and it comprises as methyl, ethyl, sec.-propyl, the tertiary butyl, heptyl, dodecyl, octadecyl, amyl group, 2-ethylhexyl and analogue.Term " alkenyl " refers to the undersaturated straight or branched alkyl that has one or more carbon-carbon double bonds.The nonrestrictive example of alkenyl comprises such as vinyl, 1-propenyl, 2-propenyl, 1, the group of 3-butadienyl, 1-butylene base, crotyl, 1-pentenyl, pentenyl, 1-hexene, 2-hexene, heptenyl, octenyl (octenyl) and analogue.Term " alkynyl " refers to and has the undersaturated straight or branched alkyl of one or more carbon carbon triple-linked.The nonrestrictive example of alkynyl comprises ethynyl, 1-proyl, 2-propynyl, ethyl acetylene base, 2-butyne base, 3-butynyl, 1-pentynyl, valerylene base, 1-hexin base, 2-hexin base, heptyne base, octyne base and analogue.Term " cyclic group " refers to closed loop alkyl (closedring hydrocarbon group), and it can be divided into alicyclic radical, aryl (aromatic base) or heterocyclic radical.Term " alicyclic radical " refers to the cyclic hydrocarbon group of the similar performance of character and aliphatic group.The nonrestrictive example of alicyclic radical comprises cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, suberyl, ring octyl group and analogue.Term " aryl " or " aromatic base " refer to monocycle or polycyclic aromatic hydrocarbons base, as phenyl or naphthyl.It is closed loop alkyl of non-carbon (as nitrogen, oxygen, sulphur etc.) that term " heterocyclic radical " refers to the one or more atoms that wherein encircle.
Can replace on the organic group of used coalescing agent (coalescent) in the coating composition of the present invention.In whole the application, as the discussion of simplifying employed some term and the mode of description, term " group " and " part " are used to distinguish and allow replacement or can substituted chemical species (chemical species) and do not allow to be substituted equally or cannot same substituted chemical species.Therefore, when term " group " when being used to describe chemical substituting group, described chemical substance comprises replacement and unsubstituted group, and wherein substituting group can comprise, as the O in (as alkoxyl group) and the carbonyl in chain, N, Si or S atom and other common substituting groups.For example; the stable hydrocarbon alkyl substituent that not only comprises pure open chain expected in phrase " alkyl "; as methyl, ethyl, propyl group, the tertiary butyl and analogue; but also comprise having substituent substituted alkyl known in the art, as hydroxyl, alkoxyl group, alkyl sulphonyl, halogen atom, cyano group, nitro, amino, carboxyl and analogue.Therefore, " alkyl " can comprise ether, haloalkyl, 4-nitro alkyl, carboxyalkyl, hydroxyalkyl, sulfoalkyl (sulfoalkyls) and analogue.When term " part " was used to describe compound or substituting group, expection included only unsubstituted chemical substance.Therefore, phrase " moieties " is restricted to the stable hydrocarbon alkyl substituent that includes only pure open chain, as methyl, ethyl, propyl group, the tertiary butyl and analogue.Term " hydrocarbyl portion " refers to the unsubstituted organic moiety that includes only hydrogen and carbon.
On the one hand, the invention provides the vanish system that is suitable for various base materials, described base material comprises, as fiber cement substrates, such as cement fibrolite plate wallboard product (siding product) or other cement composite articles.Though reference is fiber cement substrates in whole specification sheets, coating composition described herein can optionally use with various other base materials.Suitable this other base materials comprise timber, metal, cement, plastics, pottery, glass, matrix material etc.
Preferably, first vanish system comprises aqueous dispersion of polymer particles (as latex polymer dispersion or polyurethane ester dispersion or both mixtures), aliphatic epoxy resin system, silicate and one or more olefinic compounds alternatively alternatively.Selectively, first vanish system comprises: comprise the aliphatic epoxy resin system of epoxy functionalized latex polymer, silicate additive and one or more olefinic type monomers or oligopolymer and the initiator that is used for this monomer or oligopolymer alternatively alternatively.
In preferred embodiments, vanish system has the adhesion characteristic and the fire resistance characteristic of epoxy system and has latex polymer coating or the weathering characteristic of water dispersible polymers coating (weatheringproperties).
With reference to figure 1, shown coated article 10 of the present invention with schematic cross-sectional view.Goods 10 comprise cement fiberboard substrate 12.Base material 12 normally quite heavy and can have 1g/cm according to appointment 3To about 1.6g/cm 3Or higher density.First major surfaces 14 of base material 12 can be by embossing to have little peak or ridge 16 and groove 18, for example so that the timber of similar rough sawn (roughsawn).Major surfaces 14 can have multiple other surface configurations, and can similar multiple material of construction except the timber of rough sawn.One or more layers of disclosed vanish system 20 is positioned at topmost and part impermeable surface 14, and is desirably in the occasion of making goods 10 and is applied to goods 10.Layer 20 helps avoid one or more the influence that base material 12 is subjected to moisture, freeze-thaw cycle, UV irradiation or Atmospheric Carbon Dioxide.Layer 20 can also provide the stratum basale of secure adhesion, and the final finish paint 22 of one or more layers secure adhesion is formed on the stratum basale.Final finish paint 22 is contemplated to be ornamental and is weathering resistance, and the occasion after the occasion of making goods 10 or goods 10 have been attached on building surface or other surfaces can be applied to goods 10.
Can adopt the various cement fiberboard substrate in the disclosed goods.Disclosed base material generally includes cement and filler.Exemplary filler comprises timber, glass fibre, polymkeric substance (organic and inorganic) or its mixture.Methods such as employing such as extrusion molding, Hatschek method or additive method known in the art are made base material.Referring to U.S. Patent application for example 2005/0208285A1 number (corresponding to international patent application WO 2005/071179 A1 number); No. the 2005100347th, Australian patent application; International patent application WO 01/68547 A1 number; International patent application WO 98/45222 A1 number; U.S. Patent application the 2006/0288909th A1 number; And Australian patent application the 198060655th A1 number.The nonrestrictive example of this base material comprises wallboard product, plate and analogue, and their application comprises hedge, roof, ground, wallboard, shower, lap siding, vertical siding, soffit panel (soffit panels), decorative sheet, the avette imitation that is configured as the edge and stone imitation or plaster imitation.One or two major surfaces of base material can be formed or timber or other building products of embossing to look like veined or rough sawn, perhaps is cut into fan-shaped or is cut into the class ovaloid.Uncoated substrate surface contains a plurality of holes that sectional dimension is micron or submicron-scale usually.
Multiple suitable fiber cement substrates can be buied from the market.For example, good several preferred fibrocement wallboard products can be from James Hardie Building Products Inc.of Mission Viejo, and CA buys, and comprises that those are with HARDIEHOME TMThe wallboard of selling, with HARDIPANEL TMThe vertical siding of selling, with HARDIPLANK TMThe lap siding of selling, with HARDIESOFFIT TMThe plate of selling, with HARDITRIM TMThe slab of selling and with HARDISHINGLE TMThe wallboard of selling.These products can obtain extended warranty, and it is believed that can resist moisture destroys, only requires simple maintenance, does not ftracture, rots or layering, opposing is because of after being exposed to damage that moisture, rain, snow, salt fog and termite cause for a long time, being incombustible and weather resistance that the warming sense and the fibrocement of timber are provided.Other suitable fibrocement wallboard base materials comprise the ﹠amp from Knauf USG Systems GmbH; Co.KG of Iserlohn, the AQUAPANEL of Germany TMThe cement plate product; From Cemplank of Mission Viejo, the CEMPLANK of CA TM, CEMPANEL TMAnd CEMTRIM TMThe cement plate product; From CertainTeed Corporation of Valley Forge, the WEATHERBOARDS of PA TMThe cement plate product; From MaxiTile Inc.of Carson, the MAXITILE of CA TM, MAXISHAKE TMAnd MAXISLATE TMThe cement plate product; From Nichiha U.S.A., Inc.of Norcross, the BRESTONE of GA TM, CINDERSTONE TM, LEDGESTONE TM, NEWPORTBRICK TM, SIERRA PREMIUM TMWith VINTAGE BRICK TMThe cement plate product; From Zhangjiagang Evernice Building Materials Co., the EVERNICE of Ltd.of China TMCement plate product and from the EBOARD of Everest Industries Ltd.of India TMThe cement plate product.
In one embodiment, the invention provides first vanish system that is used for cement fiberboard article.In the manufacturing processed of cement fibrolite plate, the plate of new coating leaves production line and is stacked.Manufacturing a product as far as possible efficiently needs.Therefore, often expectation can be accelerated this process or can use still less energy (as using littler baking oven) during the course.In other words, preferably, the coating that is applied to product is dried as far as possible soon and effectively.Yet the condition that this hope is baffled is that preferably, the plate of new coating should " not blocked " (plate as new coating should not stick together) when being stacked.Reduce that the coating newly use tends to be blocked a kind of mechanism be to use the resin of higher Tg.Yet regrettably, the resin of high Tg may need to use the coalescing agent solvent promoting the formation of film, and the coalescing agent solvent of many routines all is volatile and/or causes the concern (regulatory concern) of rules.In order to overcome these difficulties, disclosed composition provides the block resistance system, and this system obtains suitable coalescing agent rather than with the coalescent reagent of volatile reactivity.As discussing in more detail below, the combination of having found the latex of high Tg and aliphatic epoxy resin system has obtained having the coating of the low VOC of the bond properties of improvement and freeze thawing performance.Though do not wish to be subjected to theoretical constraint, this demonstrates uncured epoxy resin system and as effective coalescent reagent the latex component is worked.
In another embodiment, the aliphatic epoxy coating system of two components is applied to base material, and is coated with thereon with second vanish system then.Use aliphatic epoxy system (these are different with the aromatics epoxy system) and allow using before second vanish system in first vanish system, first vanish system does not also have to move production line under the dried fully situation.Though do not wish to be subjected to theoretical constraint, think that at present uncured Resins, epoxy can migrate in the vanish system of using subsequently.Different with most of aromatic epoxy resins, disclosed aliphatic epoxy resin can't demonstrate not " efflorescence (chalking) " of desired amount when being subjected to uviolizing.When coated substrate will be subjected to solar radiation for a long time, this had superiority especially.
Term " aliphatic epoxy " meaning be Resins, epoxy be not main from the oxybenzene compound (as phenylphenol, butylphenol, nonylphenol, cresols, dihydroxyphenyl propane, Bisphenol F, butoxy methylolation dihydroxyphenyl propane, novolak phenoplast (novolac phenolics), resole phenoplast (resoles phenolics) and analogue) of phenol or replacement deutero-.Yet term " aliphatic epoxy " comprises epoxy functionalized latex polymer (as the latex polymer based on GMA) really, and epoxy functionalized latex polymer self is available to be formed such as the cinnamic aromatic monomer that does not contain phenol.Preferably, according to the gross weight of the epoxy functionalized resin of aliphatic series, aliphatic epoxy functionalized resin will be derived from have the compound (as phenol, phenylphenol, butylphenol, nonylphenol, cresols, dihydroxyphenyl propane, Bisphenol F, butoxy methylolation dihydroxyphenyl propane, novolak phenoplast, resole phenoplast and analogue) less than about 5% aromatic alcohol group.More preferably, aliphatic epoxy functionalized resin will be derived from have the compound less than about 3% aromatic alcohol group.Most preferably, aliphatic epoxy functionalized resin will be derived from have the compound less than about 1% aromatic alcohol group.In addition, term " aliphatic epoxy " for example comprises really, by oxyethane precursor molecule (as Epicholorohydrin) with do not contain the epoxy functionalized resin that the reaction product of the aromatic acid (as m-phthalic acid) of phenol forms.Term " aliphatic epoxy " also comprises mainly deutero-Resins, epoxy from phenol or fortified phenol, and wherein the aromatic ring structure of phenol or fortified phenol is hydrogenated (as Hydrogenated Bisphenol A).
The preferred vanish system that is applied as of aliphatic epoxy resin system provides another advantage.In another embodiment, the invention provides the aliphatic epoxy resin of 2-component, it can be used as a coating (one-coat) system.The Cement fibre panel products of first coating that comprises the aliphatic epoxy resin system is provided in this embodiment.Coating is suitable for long-term exposure in the outside, such as use the exposure that may stand before (field-applied) finish paint then and there.In other words, provide a kind of coating cement fiberboard article that demonstrates acceptable weathering characteristic and Freeze-thawing Characteristics.When manufacturers receives goods, can install it, can use final building pigment coating then.In preferred embodiments, before using final coating, this product can withstand physical environment six months.
In another embodiment, vanish system comprises two portions system, wherein first part comprises latex polymer solution, is dispersed in Resins, epoxy and optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.) in the solution, and second section contains amine aqueous solution, also have optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.), optionally silicate or optional other latex polymer.
In another embodiment, vanish system comprises two portions system, wherein first part comprises epoxy functionalized latex polymer solution and optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.), and second section contains amine aqueous solution, also have optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.), optionally silicate or optional other latex polymer (non-epoxy is functional).
In having two-part embodiment, described two portions are mixed in a usual manner to be formed first vanish system and is applied to goods, perhaps can as PCT/US2007/002347 number described mode of international patent application sequence with as described in first vanish system be applied to goods.
First vanish system comprises one or more coating compositions that can be applied one or more layers.In certain embodiments, each of one or more coating compositions all is an aqueous composition.
In one embodiment, first vanish system comprises latex polymer and aliphatic epoxy resin system.The example that is used for the specific coating composition of this embodiment comprises: (i) latex polymer and aliphatic epoxy resin system, (ii) latex polymer, aliphatic epoxy resin system and silicate, (iii) latex polymer, aliphatic epoxy resin system, olefinic type monomers and silicate, (iv) latex polymer, aliphatic epoxy resin system, silicate and one or more pigment, (v) epoxy functionalized latex polymer system and silicate, or (vi) epoxy functionalized latex polymer system, silicate and one or more pigment.In preferred embodiments, epoxy resin system is two portions systems, and wherein first part comprises epoxy functionalized resin and second section and comprises compound (as amine compound) with epoxy reaction.A kind ofly comprise the aliphatic epoxy resin of 5wt.%-50wt.% based on the exemplary coating composition of nonvolatile element, its epoxy equivalent (weight) (EEW) is between 75 and 1000; The latex polymer of 20wt.%-80wt.%, its preferred Tg are 5 ℃-50 ℃; The amine crosslinker of 2wt.%-15wt.%, its reactive hydrogen equivalent is between 20 and 500; And the silicate of 0wt.%-40wt.%.Preferred two component system have under 25.6 ℃ (78 ℉) and surpass 2 hours shelf lives or as PCT/US2007/002347 number described using of international patent application sequence.
Disclosed coating composition can replace " sealing agent " of the prior art, " priming paint " and " finish paint " to use, and perhaps except of the prior art these, disclosed coating composition can use in addition again.Yet disclosed composition itself may not belong to any class just suitably, and such term should not be restrictive.
One or more surfaces of goods are coated with by the aqueous coating system.Vanish system comprises one or more coating compositions that can be applied one or more layers.
Preferred vanish system also can comprise one or more in the following supplementary features:
-low VOC;
-increased the resistance (absorbing in the goods) that goods absorb water;
-improve or bonding to product surface (as finish paint) of the coating that promoted other;
-strengthened goods surface integrity (as, by playing more effect as the reinforcing fiber and the cement matrix of the tackiness agent in other matrix materials);
-avoid goods freezing/melting under the condition expanding; Or
-by layer of fibers being bonded together strengthen the integrity of product edges,
-block resistance.
The first exemplary vanish system comprises aqueous dispersion of polymer particles, aliphatic epoxy resin system, silicate, one or more olefinic type monomers or oligopolymer and optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.) alternatively alternatively.
The exemplary aqueous dispersion of polymer particles of use in first vanish system is latex polymer, polyurethane(s), polymeric amide, chlorinatedpolyolefins, acrylic resin, ethenoid resin, polymer-modified, the polyester of oil, with and composition thereof or multipolymer.More preferably, aqueous dispersion of polymer particles is latex polyurethane(s) or the dispersible polyurethane(s) of water.
In an optional embodiment, multi-component combination can comprise aqueous dispersion of polymer particles, silicate, optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.) and alternatively as one or more olefinic type monomers or the oligopolymer described in No. the 60/764th, 044, U.S. Patent application sequence that this incorporates into way of reference.Though the preferred aqueous dispersion of polymer particles with epoxy component of adding, these other compositions can be added to arbitrarily in the component.In one embodiment, when in conjunction with multi-component combination, multi-component combination will comprise latex polymer, potassium silicate, the epoxy oligomer Hydrogenated Bisphenol A of epoxy oligomer (as comprise), polymeric amine crosslinker and water.
The multiple polymers material can be used in the disclosed aqueous dispersion of polymer particles, described polymer materials comprises: (methyl) acrylate copolymer, Vinylite, oil are polymer-modified, polyester, polyurethane(s), polymeric amide, chlorating polyolefine, with and composition thereof or multipolymer.Latex polymer can easily synthesize and provide the aqueous dispersion of polymer particles of preference ranking originally with moderate one-tenth.Usually prepare latex polymer by chain reaction polymerization with one or more olefinic compounds (preferred monomers).The nonrestrictive example that can be used to prepare the olefinic compounds of latex polymer comprises: ethene; divinyl; propylene; butylene; iso-butylene; vinylformic acid; methacrylic acid; methyl acrylate; ethyl propenoate; propyl acrylate; butyl acrylate; 2-EHA; methyl methacrylate; Jia Jibingxisuanyizhi; propyl methacrylate; butyl methacrylate; the methacrylic tert-butyl acrylate; methacrylic acid-2-ethylhexyl; Hydroxyethyl acrylate; hydroxyethyl methylacrylate; Propylene glycol monoacrylate; the vinylformic acid hydroxy butyl ester; the methacrylic acid hydroxy butyl ester; glycidyl methacrylate; glycidyl acrylate; vinylformic acid-4-hydroxyl butyl ester glycidyl ether (4-hydroxybutyl acrylate glycidylether); acrylamide; Methacrylamide; vinylbenzene; alpha-methyl styrene; t-butyl styrene; Vinyl toluene; vinyl-acetic ester; propionate; allyl methacrylate(AMA); methacrylic acid acetoacetyl ethyl ester (AAEM); diacetone-acryloamide(DAA); dimethylaminoethyl acrylate methyl amino ester (dimethylaminomethacrylate); the dimethylaminoethyl acrylate methyl amino ester; N-hydroxyl (methyl) acrylamide; vinyl ether maleate/fumarate; VERSATIC TMThe vinyl acetate of acid (VERSATIC acid is to comprise about 5 synthetic saturated monocarboxylic acids to the higly branched chain structure of about 10 carbon atoms), with and composition thereof.Preferably, latex polymer is (methyl) acrylate copolymer.
Usually separately use or use one or more nonionic emulsifying agents or anionic emulsifier (being surfactant) to come the stabilized latex polymkeric substance together.The example of nonionic emulsifying agent comprises that uncle's octyl group benzene oxygen ethyl gathers (39) ethoxy ethanol, dodecyloxy gathers (10) ethoxy ethanol, nonyl benzene oxygen ethyl gathers (40) ethoxy ethanol, the Macrogol 2000 monoleate, ethoxylated castor oil, fluorinated alkyl esters and alcoxylates, polyoxyethylene (20) Arlacel-20, sucrose list cocounut oil ester, two (2-butyl) phenoxy group gathers (20) ethoxy ethanol, Natvosol butyl polyacrylate graft copolymer, dimethyl siloxane polyalkylene oxides graft copolymer, poly-(oxyethane) poly-(butyl acrylate) segmented copolymer, the segmented copolymer of propylene oxide and oxyethane, with 2 of 30 moles oxyethane ethoxylations, 4,7,9-tetramethyl--5-decine-4, the 7-glycol, N-polyoxyethylene (20) laurylamide, N-lauryl-N-polyoxyethylene (3) amine and poly-(10) ethylene glycol dodecyl thioether.The example of anionic emulsifier comprises sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, potassium stearate, dioctyl sodium sulphosuccinate (sodium dioctylsulfosuccinate), dodecyl hexichol oxygen sodium disulfonate (sodium dodecyldiphenyloxidedisulfonate), nonyl benzene oxygen ethyl gathers (1) ethoxyethyl group ammonium sulfate, Sodium styrene sulfonate, dodecyl allyl group sodium sulfosuccinate, linseed oil fatty acid, the sodium of the nonylphenol of ethoxylation or tridecyl alcohol phosphate, potassium or ammonium salt, hot benzene glycan-3-sodium sulfonate (sodiumoctoxynol-3-sulfonate), the cocoyl sodium sarcosinate, 1-alkoxyl group-2-hydroxypropyl azochlorosulfonate acid sodium, alpha-olefin (C 14-C 16) vitriol, N-(1,2-two propyloics)-N-octadecyl sulfosuccinamic acid four sodium, N-octadecyl sulfosuccinamic acid disodium, the alkylamide polyethoxye disodium sulfosuccinate of sodium sulfonate, hydroxyl alkanol, ethoxylated nonylphenol Carbenoxolone Sodium and poly-(39) the ethoxyethyl group vitriolic sodium salt of uncle's Octylphenoxy oxyethyl group and the analogue of sulfo-succinic acid.In addition, can use the combination of each emulsifying agent.
If desired, the available bases soluble polymer comes the stabilized latex polymkeric substance.The acid of available acrylic or methacrylic or other polymerisable acid monomers (usually greater than 7%) form polymkeric substance, and dissolve described polymkeric substance and prepare alkali-soluble polymer by adding ammoniacal liquor or other alkali.Referring to as laid-open U.S. Patents application 2006/0135684A1 number and 2006/0135686A1 number.The example of alkali-soluble polymer comprises JONCRYL TM675 and JONCRYL 678.U.S. Pat 5,962 has been summarized a kind of exemplary method that is used to prepare alkali-soluble polymer in 571.
Latex polymer with some acid functionalities is sometimes by using in ammoniacal liquor or the amine and further stablizing.Find to neutralize or part neutralized aqueous acetoacetyl-functional polymers can cause undesirable shiny appearance in the Clear coating in some cases with nitrogenous alkali (for example ammoniacal liquor or amine).Although be not to be contemplated to be restrictively, think that this outward appearance may cause by forming tautomerism enol-configuration or enamine configuration.Use the alkali (as inorganic metal alkali, such as KOH, CaOH, NaOH, LiOH etc.) of no nitrogen can solve or alleviate this problem of the coating existence of these types.The alkali of the no nitrogen that other are so also can be used by this way.
Water miscible radical initiator is generally used in the polyreaction of latex polymer.Be described below exemplary water miscible radical initiator.The amount of initiator is preferably 0.01wt.% to 3wt.% based on monomeric total amount.In redox system, the amount of reductive agent is preferably 0.01wt.% to 3wt.% based on monomeric total amount.Temperature of reaction can be in 10 ℃ to 100 ℃ scope.
The exemplary commercial latex polymer that gets comprises AIRFLEX TMEF811 (can obtain), EPS2505 (can obtain) and NEOCAR from EPS/CCA from AirProducts TM2300, NEOCAR 820 and NEOCAR 2535 (can obtain) from Dow Chemical Co..Other exemplary latex polymers are included in examines the latex polymer described in U.S. Patent application the 2007/0110981st A1 number that announces.Preferably, latex polymer less than about 7.5, be more preferably less than about 6.0, and most preferably less than about 5.5 pH preparation down.Preferably, latex polymer is gone up substantially and is not contained ammonia, this mean latex polymer contain in the non-volatile matter of polymkeric substance less than about 1% ammonia, more preferably in the non-volatile matter of polymkeric substance less than about 0.3% ammonia and most preferably in the non-volatile matter of polymkeric substance less than about 0.1% ammonia.
Alternatively, also available thiazolinyl or other crosslinkable groups come functionalized latex polymer, and wherein expectation makes latex polymer can participate in radiation curing.Exemplary functionalized latex polymer is included in the U.S. Patent application sequence of submitting on December 14th, 2005 the 11/300th, submit in No. 070 and on January 30th, 2006 the 11/342nd, No. 412, and disclosed ROSHIELD in No. the 11/560th, 329, the application sequence above-mentioned TM3120 (can be from Rohm ﹠amp; Haas obtains) and AAEM functional emulsoid polymkeric substance
Exemplary latex polymer comprises multistage latex and functionalized latex (as epoxy functionalized latex, AAEM functional emulsoid etc.) and multistage functionalized latex.
Preferred single-stage latex polymer has at least 5 ℃, more preferably at least 15 ℃, and most preferably at least 25 ℃, and best at least 30 ℃ glass transition temp (Tg).For the preferred single-stage latex polymer that uses have less than 70 ℃, be more preferably less than 60 ℃ and most preferably less than 50 ℃ Tg.
Preferred multistage latex polymer has hard segment (hardsegments) between 50wt.% and the 90wt.% and the soft chain segment (soft segments) between 10wt.% and the 50wt.%.Hard segment preferably has between 30 ℃ and 70 ℃, the more preferably Tg between 30 ℃ and 130 ℃, and soft chain segment preferably has the Tg between 0 ℃ and 25 ℃.
When with Rhopoint 1212/42, when MFFT Bar-60 tests, the preferred first component with Oxyranyle have less than about 30 ℃, be more preferably less than about 20 ℃ and most preferably less than about 15 ℃ and best less than about 10 ℃ minimum film-forming temperature (MFFT).
Preferably, first coating composition comprises the aliphatic epoxy resin system.This aliphatic epoxy resin system can comprise the polyfunctional epoxy resin made from aliphatic component (as difunctional epoxy resin, trifunctional epoxy resin, four sense Resins, epoxy and other polyfunctional epoxy resins).The example of this polyfunctional epoxy resin comprises the reaction product of the compound (as Epicholorohydrin) that contains epoxy group(ing) and multifunctional fatty alcohol or aliphatic acid.
According to an embodiment, with the epoxy coating systemic application in fiber cement substrates.The epoxy coating system normally comprises the multi-component coating system of epoxy coating system, and the epoxy coating system comprises those epoxy coating systems described in the international patent application series number PCT/US2007/002347.Epoxy group(ing) coating comprises the multi-functional epoxy official's energy coating by aliphatic series or aromatics raw material preparing, as, resin (as difunctional epoxy resin, trifunctional epoxy resin, four sense Resins, epoxy and other polyfunctional epoxy resins).At present, under UV radiating situation, aliphatic starting material are preferred in starting material possibility long-term exposure.The example of this polyfunctional epoxy resin comprises the compound (as Epicholorohydrin) and polyfunctional alcohol or sour reaction product that contains epoxy group(ing).Aliphatic series the another kind of of epoxy is to obtain from deriving such as the olefin oxide of limonene dioxide, epoxidized oil and analogue.
In another embodiment, aliphatic polyol compound that can be by making required ratio and oxyethane precursor molecule (as Epicholorohydrin) react and prepare Resins, epoxy.The process of this reaction is normally known in the art and be disclosed in, as U.S. Pat 2,633, in 458.For example, Epicholorohydrin can with following exemplary contain alcohol matter or contain carboxylic acid material (or mixture of this material) react and form Resins, epoxy, exemplary containing alcohol matter or contain the carboxylic acid material is: ethylene glycol, propylene glycol, 1, ammediol, 1, the 4-butyleneglycol, 1, the 3-butyleneglycol, the 2-methyl isophthalic acid, ammediol, neopentyl glycol, 2,2-butyl ethyl propylene glycol, hexylene glycol, glycol ether, dipropylene glycol, polyoxyethylene glycol, polypropylene glycol, cyclohexanedimethanol (cyclohexane dimethylol), 2,2, the 3-neopentyl glycol, TriMethylolPropane(TMP) (" TMP "), ethoxylation TMP, propoxylation TMP, glycerol, the propoxylation glycerol, tetramethylolmethane, the ethoxylation tetramethylolmethane, pentaerythritol propoxylate, Dipentaerythritol, tripentaerythritol, ethoxylation and propenoxylated Dipentaerythritol and tripentaerythritol, ditrimethylolpropane, hydroxypivalyl hydroxypivalate pivalyl ester (hydropivalyl hydroxypivalate), Hydrogenated Bisphenol A, ethoxylation and propenoxylated Hydrogenated Bisphenol A, Isosorbide, propanedioic acid, succsinic acid, pentanedioic acid, sebacic acid, FUMARIC ACID TECH GRADE, hexanodioic acid, pimelic acid, hexahydrophthalic acid, 1,3-cyclohexane dicarboxylic acid and 1, the 4-cyclohexane dicarboxylic acid, phthalic acid, m-phthalic acid, maleic acid, hexachloro endoethylene tetrahydrophthalic acid, oxyacetic acid, citric acid, trimellitic acid, lactic acid, caprolactone and analogue.Other alcohol or acid also can be used.Preferred alcohol comprises neopentyl glycol, TriMethylolPropane(TMP) and Hydrogenated Bisphenol A.
Characterize the preferred Resins, epoxy different by the molecular structure that comprises at least one oxyethane chemical group with aqueous dispersion of polymer particles.Resins, epoxy can be low-molecular-weight molecule (as having less than about 1000 daltonian weight-average molecular weight), maybe can be the form (as having greater than about 1000 daltonian weight-average molecular weight) of more high-molecular weight molecule.Preferred Resins, epoxy has between 200 and 25,000, more preferably at the molecular weight between 200 and 2,000 dalton between 200 and 10,000 and most preferably.Preferred Resins, epoxy has in about 75gm/ epoxy group(ing) and 1, between the 000gm/ epoxy group(ing), more preferably between 85gm/ epoxy group(ing) and the 800gm/ epoxy group(ing) and most preferably between 90gm/ epoxy group(ing) and the 350gm/ epoxy group(ing) and the epoxy equivalent (weight) (EEW) of the best between 90gm/ epoxy group(ing) and 250gm/ epoxy group(ing).Preferred aliphatic epoxy resin has between about 1 and 5, more preferably in the functionality between about 2 and 3.5 between about 1.5 and 4 and most preferably.In some embodiments, Resins, epoxy has a plurality of Oxyranyles and can play linking agent.In this embodiment, epoxide functional polymers can be crosslinked with the amine that exists in the bi-component epoxy.
Preferably, based on the total weight of solids of epoxy coating system, first coating composition comprises at least about 2wt%, more preferably comprises at least about 3wt%, and most preferably comprises the aliphatic epoxy resin at least about 4wt%.Based on the total weight of solids of epoxy coating system, first coating composition also preferably includes less than about 40wt%, more preferably comprise less than about 30wt% and most preferably comprise aliphatic epoxy resin less than about 15wt%.
Resins, epoxy can with such as amine, acid, acetoacetyl, hydroxyl isoreactivity reactive hydrogen compound or crosslinked.Exemplary amine comprises such as the EPIKURE from Hexion TMThe amidoamines of 3000 series, such as polyamine from EPIKURE 3100 series of Hexion, such as from the aliphatic amine of EPIKURE 3200 series of Hexion and the aliphatic amine of modification, such as cycloaliphatic amines from EPIKURE 3300 series of Hexion, such as EPIKURE 6870 from Hexion, 8290,8535,8536, the amine of water-based/water-dispersion of 8537 and 8540, such as Dyhard RU 100 from the Omnicure DDA series of CVC SpecialtyChemicals, such as JEFFAMINE from Huntsman TMThe polyoxyalkyleneamine, amino-functional resol (as benzoguanamine) of series (M, D, ED, EDR, T, SD, ST, HK and XTJ) and such as other monomeric amines of isophorone diamine, piperazine and analogue.
Epoxy functionalities is recently controlled by the equivalent and the mixed weight of every kind of component usually to the ratio of active hydrogen functionality (as amino functionality).Base material form and porosity and desired application viscosity have determined desired the best ratio.In addition, can use epoxy functionalized component and active hydrogen functional components to obtain desired mixed weight ratio by the solid (percentage ratio of non-volatile substance) of different percentage ratios or by different wet-film thickness.Preferably, epoxy resin system have less than about 6:1, be more preferably less than about 4:1 and most preferably less than about 2:1 and best Oxyranyle less than about 1.4:1 to the ratio of active hydrogen base.Preferably, epoxy resin system have greater than about 1:2, more preferably greater than about 1:1.5, most preferably greater than about 1:1.2 and best Oxyranyle greater than about 1:11 to the ratio of active hydrogen base.In preferred embodiments, epoxy resin system has the ratio of the Oxyranyle of about 1:1 to the active hydrogen base.
In one embodiment, aliphatic epoxy resin is attached in the latex polymer.For example, the blend of Resins, epoxy-latex polymer can prepare by following method: (i) Resins, epoxy is directly joined in the latex polymer and mixing, (ii) pre-emulsified Resins, epoxy is mixed with latex polymer, (iii) at latex between synthesis phase, Resins, epoxy is added in the latex monomer charging, or (iv) Resins, epoxy and latex polymer are mixed in static mixer, and this mixture is mixed with second component that comprises amine crosslinker, be applied to goods then.Resins, epoxy also can be used according to generalized any one method among the international patent application series number PCT/US2007/002347.
Preferably, aliphatic epoxy resin is directly added in the latex polymer to form first component of epoxy coating system.Active dydrogen compounds (as amine component) is provided with the independent component of epoxy coating system.By aliphatic epoxy resin directly being added to the step that can avoid preparing independent epoxy resin dispersion in the latex.
Also can use epoxy functionalized latex polymer.(, when GMA) forming latex polymer, preferably during the final section of monomer addition, epoxide-functional monomer is added in the reaction vessel when using epoxide-functional monomer as glycidyl methacrylate.Preferably, the monomer addition last 50% during, add epoxide-functional monomer, more preferably, the monomer addition last 35% during, add epoxide-functional monomer, and most preferably, the monomer addition last 20% during, add epoxide-functional monomer.Think, add epoxide-functional monomer by the end in reaction, epoxy group(ing) is attached in the polymer beads so that react with epoxide-reactive functional group (amine component) subsequently in position preferably.
Also have superiority with the gradient latex polymer, in the whole process of making polymkeric substance, the gradient latex polymer can comprise the epoxide-functional monomer of different levels.For example, a kind of situation be can from be substantially free of epoxide-functional monomer or removed the monomer composition of epoxide-functional monomer, then certain in polyreaction a bit begin the monomer composition that comprises epoxide-functional monomer is joined low epoxide-functional monomer or removed in the charging of epoxide-functional monomer.The latex polymer that generates can have the gradient from the low epoxy functionalities at polymer beads center to the high epoxy functionalities on polymer beads surface, and the polymer beads surface is considered to the more best placement with the epoxide-reactive functional group reactions.
Preferably, based on latex polymer solid gross weight, epoxy functionalized latex polymer have less than about 15,000, be more preferably less than about 7,000 and most preferably less than about 4,000 epoxy equivalent (weight).Preferably, based on latex polymer solid gross weight, epoxy functionalized latex polymer have greater than about 450, more preferably greater than about 1,000 and most preferably greater than about 1,600 epoxy equivalent (weight).
In certain embodiments, in epoxy compounds reactive functional groups (as amino-functional compounds) and the epoxy functionalized coating composition (oxyethane functional compound) one or both can be with chemical process sealing with the beginning that the delays chemical reaction moment until expectation, at this moment, take off each component of sealing and allow reaction with stimulator.For example, amido can be closed to form ketoimine (ketimene), and the latter can take off sealing under the situation that moisture exists.Can heat the component that is closed and help take off sealing.
Preferred amino-functional compounds can by comprise such as NH or-NH 2The molecular structure of at least one chemical group characterize.Amino-functional compounds can be low-molecular-weight molecule (as having less than about 1000 daltonian weight-average molecular weight), maybe can be high-molecular weight molecule (as having greater than about 1000 daltonian weight-average molecular weight) more.Preferred amino-functional compounds have between 100 dalton and 30,000 dalton, the more preferably molecular weight between 200 dalton and 10,000 dalton.Preferred amino-functional compounds has between 20gm/ amido and the 1500gm/ amido, more preferably at the amine equivalent between 20gm/ amido and 300gm/ amido between 20gm/ amido and the 750gm/ amido and most preferably.In some embodiments, amino-functional compounds has a plurality of amino groups and can play the effect of linking agent.
Disclosed vanish system can comprise one or more optional water-soluble silicates.The visual detection that the coating composition that comprises this silicate is carried out shows that comprising silicate has improved the absorption of cement fiberboard substrate to coating composition.The example of silicate comprises lithium silicate, potassium silicate, water glass, ammonium silicate and analogue.In preferred embodiments, based on the gross weight of nonvolatile element, the amount of silicate is by weight about 2% to about 50%, more preferably about by weight 5% to about 40% and most preferably about by weight 10% to about 35%.Silicate can obtain by many chemical supplier.For example, water glass (being sometimes referred to as water glass) can obtain in a variety of forms, comprises sodium orthosilicate (Na 4SiO 4), Starso (Na 2SiO 3), sodium polysilicate ((Na 2SiO 3) n) and pyrosilicate (Na 6Si 2O 7).Water glass and potassium silicate (being sometimes referred to as potash water glass) can be from PQ Corporation, Valley Forge, and PA obtains.
Multiple olefinic compounds can use in disclosed vanish system.Olefinic compounds is the carbon compound with at least one unsaturated position, and this position can be reacted, and randomly reacts in the presence of initiator so that polymerisate or cross-linking products to be provided.The nonrestrictive example of olefinic compounds comprises monomer, as (methyl) acrylate, vinyl, vinyl ether, allyl ethers, vinyl ester, unsaturated oil (comprising monoglyceride, triglyceride and triglyceride level), unsaturated fatty acids and analogue or mixture.Olefinic compounds also comprises oligopolymer or the polymkeric substance with at least one unsaturated position, and this position can be reacted, and randomly reacts in the presence of initiator so that polymerisate or cross-linking products to be provided.
Exemplary olefinic type monomers comprises C unsubstituted or that replace 1-C 15(methyl) acrylate of alcohol, described alcohol such as tripropylene glycol, iso-borneol alcohol, isodecyl alcohol, phenoxyethyl alcohol, trihydroxyethyl isocyanuric ester, TriMethylolPropane(TMP) ethoxylate, two-TriMethylolPropane(TMP) ethoxylate, hexylene glycol, ethoxylation neopentyl glycol, ethoxylated neopentylglycol, ethoxylated phenol, polyoxyethylene glycol, bisphenol A ethoxy thing, TriMethylolPropane(TMP), propoxylation glycerol, tetramethylolmethane, tetrahydrofurfuryl alcohol, β-propyloic alcohol or its combination.For example, olefinic type monomers can be (methyl) isobornyl acrylate, (methyl) isodecyl acrylate, (methyl) vinylformic acid phenoxy ethyl, trimethylolpropane tris (methyl) acrylate, alkoxylate cyclohexanedimethanol two (methyl) acrylate (alkoxylatedcyclohexane dimethanol di (meth) acrylate), TriMethylolPropane(TMP) ethoxylate three (methyl) acrylate (trimethylolpropane ethoxylate tri (meth) acrylate), two (methyl) vinylformic acid dipropylene glycol ester, two (methyl) vinylformic acid tripropylene glycol ester, two (methyl) vinylformic acid hexylene glycol ester, (methyl) tetrahydrofurfuryl acrylate, three (methyl) vinylformic acid pentaerythritol ester, four (methyl) vinylformic acid pentaerythritol ester, six (methyl) vinylformic acid, two-pentaerythritol ester, two-(TriMethylolPropane(TMP) four (methyl) acrylate), propoxylation three (methyl) vinylformic acid glyceryl ester (propoxylatedglycerol tri (meth) acrylate), β-propyloic (methyl) acrylate, bisphenol A ethoxy thing two (methyl) acrylate (bisphenol A ethoxylate di (meth) acrylate), ethoxylation two (methyl) vinylformic acid DOPCP (ethoxylated neopentyl glycoldi (meth) acrylate), propoxylation two (methyl) vinylformic acid DOPCP (propoxylatedneopentyl glycol di (meth) acrylate), two-(TriMethylolPropane(TMP) four (methyl) acrylate) or its combination.Preferred olefinic type monomers comprises trimethylolpropane tris (methyl) acrylate, bisphenol A ethoxy thing two (methyl) acrylate, propoxylation three (methyl) vinylformic acid glyceryl ester, TriMethylolPropane(TMP) ethoxylate three (methyl) acrylate, two-(TriMethylolPropane(TMP) four (methyl) acrylate) or its combination.Olefinic type monomers can comprise (C 1-C 15) alcohol radical, as methylol, 1-hydroxyethyl, 2-hydroxyethyl, 1-hydroxypropyl, 2-hydroxypropyl, 3-hydroxypropyl, 1-hydroxyl butyl, 4-hydroxyl butyl, 1-hydroxyl amyl group, 5-hydroxyl amyl group, 1-hydroxyl hexyl, 6-hydroxyl hexyl, 1,6-dihydroxy hexyl, 1,4-dihydroxy butyl and analogue.
Exemplary allyl ether monomers comprises one or more allyl group ethers, and it is bonded to usually and can be basic core structural group (core structural group) by multiple polyvalent alcohol.The nonrestrictive example of polyvalent alcohol comprises neopentyl glycol, TriMethylolPropane(TMP), ethylene glycol, propylene glycol, butyleneglycol, glycol ether, 1, ammediol, triglycol, trimethylolethane, tetramethylolmethane, two-tetramethylolmethane, two-TriMethylolPropane(TMP), glycerine, propoxylated glycerol, Glycerol dimer, 1,4-butyleneglycol, 1, any one of 6-hexylene glycol, 1,4 cyclohexane dimethanol and top other polyvalent alcohols of mentioning with (methyl) acrylate.Other exemplary allyl ether monomers comprise hydroxyethyl allyl ether, hydroxypropyl allyl ether, TriMethylolPropane(TMP) mono allyl ether, trimethylolpropane allyl ether, trimethylolethane mono allyl ether, trimethylolethane diallyl ether, allylin, glycerine diallyl ether, pentaerythritol monoallyl ether, pentaerythritol diallyl ether, pentaerythritol triallyl ether, 1,2,6-hexanetriol mono allyl ether, 1,2,6-hexanetriol diallyl ether and analogue.Preferred allyl ethers comprises the allyl ethers of many propoxylations and ethoxylated forms.
Exemplary vinyl ether monomers comprises one or more vinyl ether groups and comprises 4-hydroxy butyl vinyl ether, 1,4-cyclohexanedimethanol mono vinyl ether, 1,4 cyclohexane dimethanol divinyl ether, glycol monomethyl vinyl ether, ethylene glycol bisthioglycolate vinyl ether, Diethylene Glycol mono vinyl ether, Diethylene Glycol divinyl ether, triethylene glycol divinyl ether and analogue.Preferred vinyl ether monomers comprises the vinyl ether monomers of propoxylation or ethoxylated forms.
Olefinic compounds can solidify as visible light, UV-light, electron beam and analogue by radiation.Initiator system is unwanted to electrocuring, but need for other source of radiation, it will be selected based on particular type of solidifying energy (as UV, visible light or other energy) and the curing mechanism (as free radical, positively charged ion or other curing mechanisms) that is adopted usually.Therefore, in a preferred embodiment, but vanish system is an electrocuring, and does not need initiator.In another preferred embodiment, vanish system be UV-curable and free redical polymerization, and comprise the UV photoinitiator system, this UV photoinitiator system response UV light and produce free radical and solidified coating thus.Exemplary light trigger, coinitiator or synergistic agent are disclosed in No. the 11/342nd, 412, the U.S. Patent application.
Preferably, the gross weight of the nonvolatile element in the coating based system, disclosed vanish system or coating composition comprise about by weight 2% to about 50%, more preferably about by weight 5% to about 40% and about by weight 10% to about 35% independent olefinic compounds most preferably.
Use other the optional components in the vanish system herein to be described in people such as Koleske, Paint and Coatings Industry, in April, 2003 is in the 12-86 page or leaf.The additive of typically strengthening the property that can adopt comprises tensio-active agent (surface active agent), pigment, colorant, dyestuff, tensio-active agent (surfactant), dispersion agent, defoamer, thickening material, thermo-stabilizer, levelling agent, coalescing agent, biocide, mould inhibitor, anticratering agent, curing indicator, softening agent, filler, precipitating inhibitor, ultraviolet absorbers, white dyes and changes the analogue of character.
Preferably, with about 6gm/m 2And 60gm/m 2Between, 4gm/m more preferably from about 2And 45gm/m 2Between and 3gm/m most preferably from about 2And 30gm/m 2Between dry film weight first coating composition is applied to base material.In first vanish system drying or after otherwise hardening, the recommendation thickness of first vanish system is about 2 microns to about 75 microns and more preferably from about 3 microns to about 30 microns, most preferably from about 3 microns to about 20 microns and best about 4 microns to about 13 microns.
The exemplary coating composition that can be used in first vanish system is listed below.Exemplary coating composition also can comprise optional additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.).This is not contemplated to be the exhaustive catalogue based on the example of the coating composition of water.Example comprises the composition with following main component:
A latex polymer and aliphatic epoxy resin system;
B latex polymer, aliphatic epoxy resin system and silicate;
The epoxy functionalized latex system of C;
Epoxy functionalized latex system of D and silicate; And
The epoxy functionalized latex system of E, aliphatic epoxy resin and silicate.
Composition A2 to C2-above-mentioned exemplary coating composition may further include one or more optional olefinic compounds and initiators.Exemplary olefinic compounds comprises above-described those olefinic compounds and multifunctional olefinic compounds (as two senses (methyl) acrylate and trifunctional (methyl) acrylate and four senses (methyl) acrylate).Preferred this olefinic type monomers comprises that (two-TMPTA) (both can obtain from Sartomer), propoxylation three vinylformic acid glyceryl esters (can obtain from Sartomer for Viscoat 295 (TMPTA), two-trimethylolpropane tetra-acrylate, be SR 9020 and SR 9021), the methyl acrylic ester type of these materials, its mixture and analogue.Exemplary initiator comprises redox, heat or radioactivated initiator, as light trigger.In light trigger, what be suitable in the present invention using with the resin with (methyl) acrylate or allyl ethers functional group is α-crack type photoinitiator and hydrogen-abstraction (hydrogen abstraction type) light trigger.Light trigger can comprise other reagent, such as coinitiator or help the light trigger synergistic agent of photochemistry initiation reaction.Suitable crack type photoinitiator comprises α, and α-diethoxy acetophenone (DEAP), dimethoxy benzene benzoylformaldoxime (can IRGACURE TM651 trade(brand)name is from Ciba Corp., and Ardsley, NY buys), hydroxy-cyclohexyl benzophenone (can IRGACURE 184 trade(brand)name buy from Ciba Corp.), the 2-hydroxy-2-methyl-1-phenyl third-1-ketone (can DAROCUR TM1173 trade(brand)name is buied from Ciba Corp.); two-(2 of 25:75; 6-dimethoxy benzoyl)-2; 4; the blend of 4-tri-methyl-amyl phosphine oxide and 2-hydroxy-2-methyl-1-phenyl third-1-ketone (can IRGACURE 1700 trade(brand)name buy) from Ciba Corp.; the 2-hydroxy-2-methyl of 50:50-1-phenyl third-1-ketone and 2; 4; blend (the TPO of 6-trimethylbenzoyl-diphenyl phosphine oxide; trade(brand)name that can DAROCUR 4265 is buied from Ciba Corp.); phosphine oxide; 2; 4; 6-trimethylbenzoyl (can IRGACURE 819 and the trade(brand)name of IRGACURE819DW buy) from Ciba Corp.; 2; 4; (trade(brand)name that can LUCIRIN is from BASF Corp. for 6-trimethylbenzoyl-diphenyl phosphine oxide; Mount Olive; NJ buys); and the mixture of the 2-hydroxy-2-methyl of low 2-hydroxy-2-methyl-4-(1-methyl ethylene) phenyl third-1-ketone of 70% and 30%-1-phenyl third-1-ketone (trade(brand)name that can KIP 100 is from Sartomer; Exton, PA buys).Suitable hydrogen-capture-type light initiator comprises the benzophenone (benzophenone of the replacement of buying from Fratelli-Lamberti as trade(brand)name that can ESCACURE TZT of benzophenone, replacement, by Sartomer, Exton, PA sells) and other two arone, as the substitutive derivative of xanthone, thioxanthone, michaelis ketone, diphenylthanedione, quinone and above-mentioned all substances.Preferred light trigger comprises DAROCUR 1173, KIP 100, benzophenone and IRGACURE 184.Particularly preferred initiator mixture can IRGACURE 500 trade(brand)name buy from Ciba Corp., it is IRGACURE 184 and the benzophenone mixture with the ratio of 1:1.This is the good example of the mixture of α-crack type photoinitiator and hydrogen-capture-type light initiator.Other photoinitiator mixtures also can be used in the coating composition of the present invention.Camphorquinone is an example of coming the suitable light trigger of cure coating compositions by visible light.
First vanish system can be used as that single coating composition is used or as repeatedly using more than a kind of coating composition.In preferred embodiments, coating is provided with two portions composition and each component or mixed before using or use according to the method for describing in international patent application sequence PCT/US2007/002347 number.Those skilled in the art can easily determine specifically using and order of administration of selected coating composition.Exemplary being described in of these water-based paint systems describes below.
The example that is used to prepare first vanish system of coated article comprises water, latex polymer, aliphatic epoxy resin system, silicate, optionally additive (as defoamer, wetting agent, matting agent, dyestuff, pigment etc.) and one or more olefinic type monomers and initiator alternatively alternatively.Then, coated substrate can be coated with second vanish system (as priming paint or finish compositions).
The concrete application route that is used to prepare coated article comprises:
1) uses first vanish system and dry removing at least a portion water, and make first vanish system stand UV alternatively to solidify;
2) use first coating composition, use one or more first other coating compositions or one or more second vanish systems, and dry removing at least a portion water, and can
Making to choosing whole vanish system stand UV solidifies; And
3) use first coating composition and dry to remove at least a portion water, use one or more first other coating compositions and/or one or more second vanish systems and dry removing at least a portion water, and make whole vanish system stand UV alternatively to solidify.
Therefore, can be by first vanish system being used as single coating composition or being prepared coated article by first vanish system is used as multiple composition.Also may use multilayer first vanish system.In first vanish system that uses multiple coating composition or this composition of multilayer, (i) coating composition of being used can be dried before curing (to remove at least a portion water (solvent)) and/or add one or more other coating compositions, or (ii) before the coating composition that drying had before been used, can the applied coatings composition, therefore allow coating composition mixing at the interface.
Preferably, based on the gross weight of nonvolatile element, disclosed coating composition is with about solid of 5% to 60% by weight, more preferably with about solid of 10% to 50% and most preferably be applied with about solid of 10% to 40%.
If desired, second vanish system (as finish paint or priming paint and finish paint) can be applied to first vanish system.Preferred second vanish system can use following material to prepare (i) functionalized latex polymer, those functionalized latex polymers for example described herein and that describe in this incorporates into laid-open U.S. Patents application the 2006/0135684th A1 number, the 2006/0135686th A1 number with way of reference; (ii) " multistage " latex polymer; (iii) functionalized " multistage " latex polymer, for example described herein and laid-open U.S. Patents application the 2007/0110981st A1 number in those functionalized " multistage " latex polymers of describing.If use functionalized latex polymer, then functionalized latex polymer preferably include one or more acetoacetyls, carboxylic acid group, amido, epoxy group(ing), hydroxyl with and combination.
Priming paint can comprise that pigment maybe can be administered as Clear coating.In one embodiment, priming paint can with inert pigment cheaply with the high PVC level (as greater than pigment 45%) prepare.For example, when the cost specific viscosity mixture of inert pigment hanged down, the total cost of such system can have superiority.In another embodiment, priming paint can be configured to Clear coating or low PVC level coating (as, preferably have coating less than about 15% PCV).In preferred embodiments, the exsiccant of the priming paint of being used or otherwise the hardened film thickness be about 2 microns to about 75 microns, more preferably from about 3 microns to about 30 microns, most preferably from about 3 microns to about 20 microns and best about 4 microns to about 13 microns.
In a preferred embodiment, coating composition comprises the functionalized latex polymer in conjunction with the acetoacetyl-functional degree.By using following material; the acetoacetyl-functional degree can be attached in the polymkeric substance: vinylformic acid acetoacetoxy groups ethyl ester, methacrylic acid acetoacetoxy groups propyl ester, acetoacetic acid allyl ester, methacrylic acid acetoacetoxy groups butyl ester, methacrylic acid-2,3-two (acetoacetoxy groups) propyl ester, methacrylic acid-2-(acetoacetoxy groups) ethyl ester, tert-butyl acetoacetate, diketene and analogue or its combination.In certain embodiments, preferably, the acetoacetyl-functional latex polymer is a usefulness, prepares by chain reaction polymerization as methacrylic acid-2-(acetoacetoxy groups) ethyl ester (AAEM).Preferred latex polymer comprises the acetoacetyl-functional degree based at least 0.5 weight % of the gross weight of latex polymer; more preferably based on the acetoacetyl-functional degree of 0.5 weight % to 5 weight % of latex polymer gross weight, and most preferably based on the acetoacetyl-functional degree of 1 weight % to 4 weight % of latex polymer gross weight.This functionalized latex polymer is described in the U.S. Patent application sequence the 11/300th, No. 070 and the 11/342nd, No. 412.As a rule, any polymerisable hydroxy functional monomers or other contain active hydrogen monomer can by with diketene or other suitable acetoacetyl agent reaction be converted into corresponding acetoacetyl-functional monomer (referring to, Comparison of Methodsfor the Preparation of Acetoacetylated CoatingResins (being used to prepare the comparison of the method for acetoacetyl coating resin) for example, Witzeman, J.S.; Dell Nottingham, W.; Del Rector, F.J.Coatings Technology; Volume 62,1990,101 (and be included in wherein reference)).In preferred coating compositions, acetoacetyl-functional group passes through methacrylic acid-2-(acetoacetoxy groups) ethyl ester, tert-butyl acetoacetate, diketene or its built up section in polymkeric substance.
Can use such as above-mentioned one or more olefinic type monomers that are used for first vanish system to prepare functionalized latex polymer by chain reaction polymerization.
If desired, functionalized latex polymer can be multistage latex polymer.Exemplary multistage latex polymerization compositions comprises the polymkeric substance of at least two kinds of different glass invert points (as different Tg) and can use aforementioned many monomers to pass through emulsion polymerization prepared.In a preferred embodiment, latex will comprise have approximately between-65 ℃ and 30 ℃, more preferably at first grade polymer of the Tg between-5 ℃ and 25 ℃ (" soft level (soft stage) ") approximately, and have between about 30 ℃ and 230 ℃, more preferably second grade polymer of the Tg between about 30 ℃ and 105 ℃ (" hard level (hard stage) ").Multistage latex is normally made by sequential monomer fed technology (sequentialmonomer feeding technique).For example, in the process of polymeric initial stage, add first monomer composition, then, in the process of polymeric late stage, add the second different monomer compositions.In certain embodiments, monomer composition with high Tg begins polymerization, and the monomer composition that converts low Tg then to can have superiority, and in other embodiments, monomer composition with low Tg begins polymerization, and the monomer composition that converts high Tg then to can have superiority.
Also can adopt repeatedly hard level and soft level.For example in some composition, after hard level polymer formation, the soft level monomer composition of two kinds of different low Tg of polymerization can be useful.The first soft level can be with the monomer composition preparation of Tg near room temperature (as 20 ℃), and the second soft level can be with the monomer composition preparation of Tg far below room temperature (as less than 5 ℃).Though do not wish to be bound by theory, think that this second soft grade of polymkeric substance helps to improve the coalescent of latex polymer particles.
The gradient Tg latex polymer that use comprises almost unlimited Tg level also can have superiority.For example, the monomer composition of available high Tg begins, and certain in polymerization a bit begins the soft level monomer composition of low Tg is joined in the hard level monomer feed of high Tg then.Resulting multistage latex polymer will have from height to low gradient Tg." powering charge " process can be used to prepare this composition.Gradient Tg polymkeric substance also can combine use with multiple multistage Tg polymkeric substance.As an example, can prepare the monomer feed (F1) of high Tg and the monomer feed (F2) of low Tg.Begin F1 is joined in the latex reactor vessel, then initiated polymerization.In certain period of F1 fill process, so F2 is joined among the F1, the feeding rate that wherein joins the F2 in the reactor vessel is faster than the total feed rate that joins the F1+F2 in the reactor vessel.Therefore, join among the F1 in case finish F2, total Tg of F1+F2 monomer feed blend will be " soft level " monomer composition of lower Tg.
Preferably, multistage latex polymerization compositions comprises the soft level polymer morphology of about 5 weight % to the 95 weight % that account for total polymer weight, more preferably account for the soft level polymer morphology of about 50 weight % to 90 weight % of total polymer weight, and the soft level polymer morphology that most preferably accounts for about 60 weight % to 80 weight % of total polymer weight.
Preferably, multistage latex polymerization compositions comprises the hard level polymer morphology of about 5 weight % to the 95 weight % that account for total polymer weight, more preferably account for the hard level polymer morphology of about 10 weight % to 50 weight % of total polymer weight, and the hard level polymer morphology that most preferably accounts for about 20 weight % to 40 weight % of total polymer weight.
Preferably, based on the total solids of composition, multistage latex polymerization compositions comprises at least about 10wt.%, more preferably at least about 25wt.% and still more preferably at least about the multistage latex polymer of 35wt.%.Preferably, based on the total solids of composition, exemplary finish compositions also comprises less than 100wt.%, the multistage latex polymer that is more preferably less than about 85wt.% and still is more preferably less than about 80wt.%.
Preferably, use one or more above-mentioned ethylenically unsaturated monomers to come to prepare multistage latex polymer by chain reaction polymerization.Can regulate each monomeric " firmly " segment or " soft " segment that aspiration level recently is provided.In general, the Fox formula can be used to calculate add the theory T g of monomer composition.For example, the monomer composition of AAEM that can be by the butyl acrylate that comprises 5 parts to 65 parts, 20 parts to 90 parts butyl methacrylate, 0 part to 55 parts methyl methacrylate, 0 part to 5 parts (methyl) vinylformic acid and 0 part to 20 parts are provided is introduced soft chain segment.On the contrary, the monomer composition of AAEM that can be by the butyl acrylate that comprises 0 part to 20 parts, 0 part to 40 parts butyl methacrylate, 45 parts to 95 parts methyl methacrylate, 0 part to 5 parts (methyl) vinylformic acid and 0 part to 20 parts are provided is introduced hard segment.Foregoing has explained this notion and other compositions can be used for putting into practice the present invention.Based on the total solids of latex polymer, embodiment preferred will comprise the butyl methacrylate of at least 15 weight %.
Preferably, functionalized multistage latex polymer is in conjunction with the acetoacetyl-functional degree, its as described above mode be attached in the multistage polymkeric substance.
Can use or use together one or more nonionics or anionic emulsifier (as surfactant) to stablize above-mentioned functionalized latex polymer (no matter being single-stage, still multistage) separately by above-described mode.
Also the hard level of the alkali-soluble polymer of available high Tg prepares multistage latex polymer.Can be by making polymkeric substance with acrylic or methacrylic acid or other polymerisable acid monomers (usually greater than 10%), add ammoniacal liquor then or other alkali dissolution polymkeric substance prepare alkali-soluble polymer.The example of caustic solubility carrier polymer is JONCRYL 675 and JONCRYL 678.Under the situation that hard level alkali-soluble polymer exists, the soft level monomer composition of the low Tg of polymerization prepares multistage latex polymer then.Water-soluble radical initiator is generally used for the chain reaction polymerization of functionalized latex polymer.
First coating composition and second coating composition also can comprise optional coalescing agent and many coalescing agent known in the art.Preferably, optional coalescing agent is the coalescing agent of low VOC, such as United States Patent (USP) the 6th, 762, describes in No. 230.Preferably, based on the total solids of composition, coating composition comprises at least about 0.5 weight %, more preferably at least about 0.75 weight %, and still more preferably at least about the coalescing agent of the low VOC of the amount of 1.0 weight %.Preferably, based on the total solids of composition, coating composition also comprises less than about 20 weight %, is more preferably less than about 17 weight % and still is more preferably less than the coalescing agent of low VOC of the amount of about 15 weight %.
Use for some, expect opaque, be with look, painted or have the coating of other visual signatures.Provide the reagent of this specific character also can be included in the coating composition.The pigment of using with disclosed coating composition is known in this area.Exemplary pigment comprises titanium dioxide white, carbon black, dim, black iron oxide, red iron oxide, Zh 1, brown iron oxide (blend of red oxide and oxide yellow thing and black oxide), phthalocyanine green, phthalocyanine blue, organic red (as naphthol red, quinacridone is red and toluidine red (toulidine red)), quinacridone magenta, quinacridone violet, DNA orange or organic yellow (as hansa yellow (Hansa yellow)).Composition also can comprise gloss control additive or white dyes, as gloss control additive or the white dyes that can buy from Ciba-Geigy with trade(brand)name UVITEX OB.
Some embodiment can comprise weighting agent or inert fraction in coating composition.Weighting agent and inert fraction comprise, for example clay, granulated glass sphere, lime carbonate, talcum, silicon-dioxide, organic filler and analogue.Weighting agent enlarges, just reduce composition cost, change the outward appearance of composition, perhaps before solidifying and afterwards, give composition with desired character.Exemplary weighting agent is well known by persons skilled in the art, maybe can use standard method to determine.Weighting agent or inert fraction preferably exist with the amount of at least 0.1 weight % of coating based composition total weight.Weighting agent or inert fraction preferably exist with the amount that is no more than 40 weight % of coating based composition total weight.
Disclosed vanish system can comprise that also changing curable coating composition is storing, handling or use and other compositions of character during in other or stage subsequently.Wax class, matting agent, damage and wear additive and other similar performance enhancing additives can effectively improve the amount of the performance of cured coating and coating composition to be used as required.The performance of the coating of expectation comprises combination and other similar characteristics of chemical resistant properties, wearability, hardness, gloss, reflectivity, outward appearance or these characteristics.
Vanish system can be used by many coating techniques, described coating technique comprises, but be not limited to, brush (as using brush coater), directly roller coat, contrary print roll coating, mist are coated with (mist coating), cover and be coated with (flood coating), vacuum coated, the coating of curtain formula and spraying.Each of various technology all provides one group of unique merits and demerits, and this depends on substrate profile, form and permissible coating efficiency.Lower viscosity is easy to the homogeneity of controlling diaphragm.The film thickness that is coated with is as controlling by changing application rate.
Preferably, be coated with at least one main surface of coated article with the epoxy coating system.More preferably, coated article is on main surface and applied on four minor surface that comprise any edge.Most preferably, coated article is gone up on all (as two) main surface and is applied on four minor surface that comprise any edge.
Finish paint or priming paint and finish paint can directly be applied to the epoxy coating system.The coating that vanish system described herein and coating composition can replace being classified as " sealing agent ", " priming paint " and " finish paint " in the prior art is used, or except these coatings of the prior art, vanish system described herein and coating composition can use in addition again.But described system and composition itself may not belong to any class just suitably, and such term should not be restrictive.Exsiccant or otherwise the preferred thickness of hardened finish paint be between about 20 microns and about 200 microns, preferably between about 25 microns and about 120 microns, more preferably between about 30 microns and about 100 microns, and most preferably between about 35 microns and about 75 microns.
Under laboratory condition, shown that wet adhesion is tested and the long-term outdoor exposure that is suffered is simulated in " freeze thawing " circulation under boreal climate.After the coating cement fiberboard substrate was with water saturation, the wet adhesion test can be carried out to estimate the bounding force of vanish system as following.According to this testing sequence, coated substrate (as fiber cement board) soaked 24 hours in the water of room temperature.After the immersion, plate is taken out from water, and at room temperature kept 24 hours.3MHD 250 adhesive tapes that 6 inches (15.24cm) is long are applied to the surface of plate, and wherein the major axis of adhesive tape is on the direction that may have any pattern of indentations.Adhesive tape firmly pressed onboard guaranteeing contact fully.Then, remove adhesive tape by tearing adhesive tape rapidly with the direction that becomes 90 angles of spending with plate.Percentage ratio according to the coating of removing from cement plate is estimated " wet adhesion " performance.Performance is further estimated by observing which place's any inefficacy of generation.For example, inefficacy can occur between the coating interface, between the surface of coating and plate or within plate itself.Preferred vanish system or coating composition have coating removal amount less than 25% usually, are more preferably less than 15% coating removal amount.In addition, preferably in plate, a large amount of fibers in the plate of the coating that this removes by adhering to are represented in inefficacy.
When according to ASTM D6944-03, when testing method A tests, preferred coated article can withstand at least 30 times freeze-thaw cycle.As described, this ASTM methods of test has been narrated the round-robin order 30 times.But, be not simply when 30 loop ends, sample is evaluated as " by ", comprise extra circulation but wish this test extended to.More preferably, coated article can withstand at least 75 times freeze-thaw cycle, most preferably at least 125 times freeze-thaw cycle, and best at least 175 times freeze-thaw cycle.
Preferably, disclosed vanish system or coating composition have improvement, promptly lower volatile organic content (VOC).The gross weight of coating based system, the expectation of vanish system or coating composition has the VOC less than about 5%, preferably less than about 2% VOC, is more preferably less than about 0.5% VOC.Volatile organic compounds is defined in United States Patent (USP) the 6th, 048, No. 471 (Henry) and the United States Federal's communique (U.S.Federal Register): on June 16 nineteen ninety-five, 60 volumes are in No. 111.
Based on the gross weight of composition, the preferred composition of second vanish system comprises less than 10 weight %, is more preferably less than 7 weight % and most preferably less than the volatile organic compounds (VOC) of 5 weight %.In addition, these compositions also can comprise optional coalescing agent, preferably as at United States Patent (USP) the 6th, 762, and the coalescing agent of the low VOC that describes in No. 230.
Therefore, described the preferred embodiments of the invention, those of ordinary skill in the art will readily appreciate that, in the scope of additional claim so far, the instruction content that this paper exists goes for another embodiment.
To the present invention be described by following non-restrictive example.Unless otherwise noted, otherwise all umbers and percentage ratio all be by weight.
Embodiment
Embodiment 1: test 1a and 1b
Test 1a: reactor is equipped with 758 parts of deionized waters and 1.6 parts of Triton X-405.Under nitrogen blanket, reaction mixture is heated to 75 ℃.During heating, formed pre-milk sap, it comprises: 246 parts of deionizations (DI) water, 31 parts of Triton X-405,11.2 parts of RHODAPON UB, 0.7 part of Sodium Persulfate, 304 parts of vinylbenzene, 130 parts of methyl methacrylates, 204 parts of butyl acrylates, and 13 parts of methacrylic acids.In case reaction mixture reaches 75 ℃, join 1.6 parts of Sodium Persulfates in the reactor and monomer feed begins 3.5 hours feeding rates.Between polymerization period, temperature of reaction remains between 80 ℃ and 85 ℃.In case pre-emulsion feed finishes, reacted 30 minutes with 20 parts of washed with de-ionized water containers and maintenance.Then within 30 minutes, add by with 0.7 part of tertbutyl peroxide of 20 parts of deionized water blended and the afterreaction liquid (post reaction) formed with 0.5 part of saccharosonic acid of 20 parts of deionized water blended.Then, resulting latex polymer is cooled to is lower than 30 ℃ and pour in two containers.
Test 1b: 108 parts of HELOXY TM48 within 5-10 minute, join 1000 parts from the latex of embodiment 1a and mixture kept 1 hour.
Embodiment 2: test 2a-2c
Test 2a (comparing embodiment): the preparation of latex composition is by mixing following composition: 44 parts of water and 56 parts of latex from test 1a.
Test 2b: two portions " epoxy-amine " preparation of compositions is by mixing following composition: partly ' A ' comprises 51.6 parts of latex from test 1b; And part ' B ' comprises 46.6 parts of water and 1.8 parts of EPIKURE from Hexion TM3295 amine.
Test 2c: two portions " epoxy-amine " preparation of compositions is by mixing following composition: partly ' A ' comprises 31.6 parts of latex from test 1b; And part ' B ' comprises 36.8 parts of water, 25.8 parts of potassium silicates (KASIL 1); And 1.3 parts of EPIKURE 3295 amine from Hexion.
' A ' of weight parts such as mixing and ' B ' and before being applied to base material allow its placement is reached 10 minutes inductive phase.In preferred embodiments, then, use or use by single coating by two coatings or overbrushing layer, theoretical build with 0.00127cm to 0.001778cm (0.5mil to 0.7mil) is applied to fibre cement product with coating, afterwards, remove a part of water by dry air, heat drying stage or by being applied to warm base material (38 ℃ according to appointment).Then, coated substrate can, disclosed finish paint is coated with finish paint in No. the 11/560th, 329, U.S. Patent application sequence as using.
Embodiment 3
The acetoacetyl-functional latex polymer
Reactor is equipped with 567 parts of deionized waters, and 1.5 parts of RHODAPON TMUB.Under nitrogen blanket, reaction mixture is heated to 75 ℃.During heating, formed pre-milk sap, it comprises: 331 parts of deionized waters, 56.8 parts of RHODAPON UB, 0.9 part of ammonium persulphate, 149 parts of ethyl acrylates, 732 parts of butyl methacrylate, 28.1 parts of AAEM, and 28.1 parts of methacrylic acids.In case reaction mixture reaches 75 ℃, join 2.8 parts of ammonium persulphates in the reactor and monomer feed begins 3 hours feeding rates.Between polymerization period, temperature of reaction remains between 80 ℃ and 85 ℃.In case pre-emulsion feed finishes, reacted 30 minutes with 20 parts of washed with de-ionized water containers and maintenance.Then within 30 minutes, add by with 0.9 part of tertbutyl peroxide of 20 parts of deionized water blended and the afterreaction liquid formed with 0.7 part of saccharosonic acid of 20 parts of deionized water blended.Then, the latex polymer that is generated is cooled to 40 ℃ and add 28% strong aqua to regulate pH to 7.5-8.5 and to add deionized water so that weight solid (weight solid) is adjusted to 48%.
Embodiment 4
Multistage acetoacetyl-functional latex polymer
Reactor is equipped with 547 parts of deionized waters, and 1.5 parts of RHODAPON UB.Under nitrogen blanket, reaction mixture is heated to 75 ℃.During heating, formed pre-milk sap 1, it comprises: 215 parts of deionized waters, 37 parts of RHODAPON UB, 0.6 part of ammonium persulphate, 103 parts of ethyl acrylates, 470 parts of butyl methacrylate, 18 parts of AAEM, and 18 parts of methacrylic acids.Formed pre-milk sap 2, it comprises: 116 parts of deionized waters, 20 parts of RHODAPON UB, 0.3 part of ammonium persulphate, 233 parts of methyl methacrylates, 85 parts of butyl methacrylate, 10 parts of AAEM, and 10 parts of methacrylic acids.In case reaction mixture reaches 75 ℃, join 2.8 parts of ammonium persulphates in the reactor and 2 hours feeding rates of pre-milk sap 1 beginning.In case added pre-milk sap 1, with 20 parts of washed with de-ionized water containers and 1 hour feeding rate of pre-milk sap 2 beginnings.Between polymerization period, temperature of reaction remains between 80 ℃ and 85 ℃.In case pre-milk sap 2 chargings finish, reacted 30 minutes with 20 parts of washed with de-ionized water containers and maintenance.Then within 30 minutes, add by with 0.9 part of tertbutyl peroxide of 20 parts of deionized water blended and the afterreaction liquid formed with 0.7 part of saccharosonic acid of 20 parts of deionized water blended.Then, the latex polymer that is generated is cooled to 40 ℃ and add 28% strong aqua pH be adjusted to 7.5-8.5 and add deionized water so that the weight solid is adjusted to 48%.
Embodiment 5a-c
Paint composite
In the mixing vessel that is equipped with super mixer and stirring rake (dispersion blade), be sequentially added into following composition (weight part):
Composition Embodiment 5a Embodiment 5b Embodiment 5c
Water 101 101 101
Cellosize QP 09-L Thickening material 0.8 0.8 0.8
Above composition mixing 5 minutes or up to mixing, add following composition (weight part) then:
Composition Embodiment 5a Embodiment 5b Embodiment 5c
Dehydran 1620 Defoamer 1.5 1.5 1.5
Texanol Cosolvent 15 15 15
Disperbyk 190 Dispersion agent 7 7 7
Ammonia 26 BE Neutralizing agent 1 1 1
Ti Pure R902-28 Pigment 220 220 220
ASP 170 pure aluminium silicate Extender 85 85 85
The above composition of high-speed mixing 15 minutes adds following composition (weight part) then:
Composition Embodiment 5a Embodiment 5b Embodiment 5c
Ammonia 26 BE Neutralizing agent 1 1 1
Following composition is sequentially added into (weight part) in the top composition:
Composition Embodiment 5a Embodiment 5b Embodiment 5c
Water 46.6 46.6 6.9
The latex of embodiment 2 596.2 - -
The latex of embodiment 3 - 596.2 -
Neocryl XK 9 latex - - 636
Water 16.7 16.7 16.7
Byk 024 Defoamer 1 1 1
Acrysol RM-2020NPR Thickening material 1.5 1.5 1.5
Mixed above composition 15 minutes with moderate agitation.
Embodiment 6
Adhesive tape bounding force test result
Technology below using, preparation be used for according to embodiment 2 the plate sample of the generalized 15.24 * 21cm that tests, use second vanish system then.
Utilization is set in the convection oven of 149 ℃ (300 ℉), with plate samples pre-heated to 43 ℃ (~110 ℉).By utilizing scrub-brush or sponge brush that about 5.2 gram finish paints evenly are coated on the surface of plate.After the coated panel, the baking oven that immediately plate is positioned over 149 ℃ (300 ℉) reaches 60 ℃ (140 ℉) up to the surface temperature of plate.Take out sample, and make it be cooled to room temperature.
The bounding force test procedure: sealed at the plate sample, coat finish paint and drying after, it can use 250 standard adhesive tapes of 3M trade mark to come the testing coating bounding force.After the specification sheets applied coatings system and cure/dry according to vanish system, can test the bounding force of vanish system to the plate surface.The 3M trade mark #250 standard masking tape that 7.62cm (3 inches) is rectangular is applied to the plate surface.Utilize thumb, the whole length that the minimum of 20.67kPa (5psi) is applied to adhesive tape reaches 10 seconds, thereby adhesive tape firmly is depressed into the plate surface.Allowed to stick to the plate surface balance 2 minutes.After the balance, remove adhesive tape by tearing adhesive tape with the angle rapid (being equal to or less than 1 second) of 90 degree.Inefficacy is reported into the combination of coating cohesive mechanical failure and plate surface failure.
The compare test result:
Test 1 Test 2 Test 3 Test 4
First coating Embodiment 2, test 2a Embodiment 2, test 2a Embodiment 2, test 2a Embodiment 2, test 2a
Second coating Embodiment 5a Embodiment 5b Embodiment 5c Lasting house paint from Sherwin Williams
% adhesion loss (adhesion loss) 90% 90% 85% 85%
Test result of the present invention:
Test 5 Test 6 Test 7 Test 8
First coating Embodiment 2, test 2b Embodiment 2, test 2b Embodiment 2, test 2b Embodiment 2, test 2b
Second coating Embodiment 5a Embodiment 5b Embodiment 5c Lasting house paint from Sherwin Williams
The % adhesion loss <1% <1% <1% 4%-8%
Test 9 Test 10 Test 11 Test 12
First coating Embodiment 2, test 2c Embodiment 2, test 2c Embodiment 2, test 2c Embodiment 2, test 2c
Second coating Embodiment 5a Embodiment 5b Embodiment 5c Lasting house paint from Sherwin Williams
The % adhesion loss <1% <1% 2%-5% 1%-2%
Embodiment 7
The oxyethane functional emulsoid
Be equipped with the two-piece type three-necked flask of agitator, condenser, thermopair and nitrogen inlet that 720 gram deionized waters and 1.25 gram Triton X-405 (Rohm ﹠amp are housed; Haas).Material is stirred and is heated to 80 ℃ to 90 ℃.Utilize and stir, in 2 liters of beakers, prepare monomer mixture separately.Beaker is equipped with 291 gram water, 23.8 gram Triton X-405,592 gram vinylbenzene, 202 gram butyl acrylates, 16.7 gram methacrylic acids and 65.8 gram glycidyl methacrylate, mixes simultaneously to form pre-milk sap.2.0 gram Sodium Persulfates are dissolved in the milk sap.Under 80 ℃-90 ℃, pack in the reactor being dissolved in 20 grams 2.0 in deionized waters gram Sodium Persulfates.Under 80 ℃-90 ℃, within 31/2 hour, monomer milk sap is joined in the reactor then.With 20 gram washed with de-ionized water milk sap.Keep reaction 30 minutes then.Add 1.0 gram t-butyl hydroperoxides, add the solution of 0.7 gram saccharosonic acid and 20 gram water then.After 20-30 minute, restrain water coolings and weaken reaction with 20.Solid is adjusted to about 45 weight %.The MFFT of latex is greater than 60 ℃.
Embodiment 8a-c
The agglutinating power of aliphatic epoxy resin
8a. 7.9 gram Heloxy 68 are joined in the latex that forms among the 100 gram embodiment 7, and solid are adjusted to 45%.
8b. 11.3 gram Heloxy 68 are joined in the latex that forms among the 100 gram embodiment 7, and solid are adjusted to 45%.
8c. 15 gram Heloxy 68 are joined in the latex that forms among the 100 gram embodiment 7, and solid are adjusted to 45%.
Embodiment 7 Embodiment 8a Embodiment 8b Embodiment 8c
MFFT >60℃ 21℃ 11℃ <5℃
Use aliphatic epoxy resin as coalescing agent, prepare the batching of lower MFFT and the low VOC of permission.
Embodiment 9
The oxyethane functional emulsoid
Be equipped with the two-piece type three-necked flask of agitator, condenser, thermopair and nitrogen inlet that 720 gram deionized waters and 1.25 gram Triton X-405 (Rohm ﹠amp are housed; Haas).Material is stirred and is heated to 80 ℃ to 90 ℃.Utilize and stir, in 2 liters of beakers, prepare monomer mixture separately.Beaker is equipped with 291 gram water, 23.8 gram Triton X-405,458 gram vinylbenzene, 336 gram butyl acrylates and 16.7 gram methacrylic acids and 65.8 gram glycidyl methacrylate, mixes simultaneously to form pre-milk sap.2.0 gram Sodium Persulfates are dissolved in the milk sap.Under 80 ℃-90 ℃, pack in the reactor being dissolved in 20 grams 2.0 in deionized waters gram Sodium Persulfates.Under 80 ℃-90 ℃, within 31/2 hour, monomer milk sap is joined in the reactor then.With 20 gram washed with de-ionized water milk sap.Keep reaction 30 minutes then.Add 1.0 gram t-butyl hydroperoxides, add the solution of 0.7 gram saccharosonic acid and 20 gram water then.After 20-30 minute, restrain water coolings and weaken reaction with 20.Solid is adjusted to about 45 weight %.
Embodiment 10a-c
Painted coating composition
Prepare painted slurry according to following mode:
Raw material supplier position Wt.%
Following material is joined in the mixing vessel, uses high-shear and stirred (shear agitation) 5 minutes:
Deionized water NA 29.8
Attagel 50 Engelhard Iselin,NJ 08830 1.5
After 5 minutes, under height stirs, be sequentially added into following material:
Tamol 731-125% Rohm&Haas Philadelphia,PA 19106-2399 1.5
Tamol 850 Rohm&Haas Philadelphia,PA 19106-2399 3.0
Byk 035 Byk(Altana) Wesel Germany 46462 0.9
Titanium dioxide DuPont Wilmington, DE 42.8
Red iron oxide Elementis East St.Louis, IL 62,204 3.7
Zh 1 Elementis East St.Louis, IL 62,204 14.0
Carbon black Elementis East St.Louis, IL 62,204 2.8
Ground pigment under high-shear is up to the Hegmann fineness that obtains greater than 5.
Embodiment 10a
Painted epoxide modified coating
Raw material supplier position Wt.%
Under appropriateness is mixed, following material is sequentially added into:
Embodiment 9 23.3
Paraplex WP-1 Rohm&Haas Philadelphia,PA 19106-2399 3.7
Mixed 30 minutes, and be sequentially added into following material then:
Slurry (from embodiment 11) 9.2
Epicure 3295 Hexion Houston,TX 77082 0.25
Deionized water NA 32.9
Deionized water (reduction) NA 16.5
Kasil1 PQ Corporation Valley Forge,PA 19482-8040 14.0
Embodiment 10b
Painted epoxide modified coating
Raw material supplier position Wt.%
Under appropriateness is mixed, following material is sequentially added into:
Embodiment 9 22.0
Heloxy 48 Hexion Houston,TX 77082 3.5
Mixed 30 minutes, and be sequentially added into following material then:
Slurry (from top) 8.7
Deionized water NA 51.3
Kasil 1 PQ Corporation Valley Forge,PA 19482-8040 13.2
EPIKURE 3295 Hexion Houston,TX 77082 1.3
Embodiment 10c
Painted epoxide modified coating
Raw material supplier position Wt.%
Under appropriateness is mixed, following material is sequentially added into:
Embodiment 9 21.9
Heloxy 68 Hexion Houston,TX 77082 3.5
Mixed 30 minutes, and be sequentially added into following material then:
Slurry (from top) 8.7
Deionized water NA 51.4
Kasil 1 PQ Corporation Valley Forge,PA 19482-8040 13.2
EPIKURE 3295 Hexion Houston,TX 77082 1.3
Epoxide modified coating also provides the freezing and thawing system of improvement for fibrocement.
Embodiment 11
Adhesive tape bounding force test result
Technology below using, preparation are used for the plate sample according to the generalized 15.24 * 21cm that tests of embodiment 2 institute, use the coating for preparing among the embodiment 10, and then use second vanish system.
Utilization is set in the convection oven of 149 ℃ (300 ℉), with plate samples pre-heated to 43 ℃ (~110 ℉).By utilizing scrub-brush or sponge brush that about 5.2 gram finish paints evenly are coated on the surface of plate.After the coated panel, the baking oven that immediately plate is positioned over 149 ℃ (300 ℉) reaches 60 ℃ (140 ℉) up to the surface temperature of plate.Take out sample, and make the plate sample be cooled to room temperature.Second vanish system of using is according to Rohm ﹠amp; The method of describing among the Hass Formulation W-264-8 prepares.
The bounding force test procedure: sealed at the plate sample, coat finish paint and drying after, after the night, its 250 standard adhesive tapes that can be used the 3M trade mark come the testing coating bounding force in plate submergence water at room temperature.With length at least the rectangular 3M trade mark #250 standard masking tape of 7.62cm (3 inches) be applied to the plate surface.The whole length that the minimum (utilizing thumb or forefinger) of 20.67kPa (5psi) is applied to adhesive tape reaches 10 seconds, thereby adhesive tape firmly is depressed into the plate surface.Allowed to stick to the plate surface balance 2 minutes.After the balance, remove adhesive tape by tearing adhesive tape with the angle rapid (being equal to or less than 1 second) of 90 degree.Inefficacy is reported into the combination of coating cohesive mechanical failure and plate surface failure.
Test 11A Test 11B Test 11C
First coating Embodiment 10a Embodiment 10b Embodiment 10c
The % adhesion loss <5% 5%-10% <5%
Epoxide modified coating also provides the freezing and thawing system of improvement for fibrocement.
Also notice, composition of the present invention can use with other coating compositions, such as U.S. Patent application the 60/764th, No. 044, the 60/764th, No. 131, the 60/764th, No. 242 and the 60/773rd, No. 482, the 60/764th, those disclosed coating composition in No. 103, the 60/802nd, No. 185 and the 60/802nd, No. 186.
All patents, patent application and the document quoted in this specification sheets are all incorporated at this by reference with its full content.Why not under the consistent situation in office, comprise that the present disclosure of each definition in it will account for leading.With reference to various concrete and embodiment preferred and technical descriptions the present invention.But, should be appreciated that, can carry out many changes and change and still fall within the scope of the present invention.

Claims (46)

1. coating composition, it comprises:
One or more latex polymers;
The aliphatic epoxy resin system, it has the oxyethane functional components different with described one or more latex polymers;
Oxyethane functional components in the wherein said aliphatic epoxy resin system has the epoxy equivalent (weight) less than 1000; And
Wherein said coating composition comprises one or more coating compositions that can be applied one or more layers.
2. coating composition as claimed in claim 1, wherein said latex polymer has the Tg between 5 ℃ and 70 ℃.
3. coating composition as claimed in claim 2, wherein said latex polymer has the Tg between 15 ℃ and 60 ℃.
4. as each described coating composition in the claim 1 to 3, wherein said latex polymer is multistage latex.
5. as each described coating composition in the claim 1 to 4, wherein said latex polymer comprises one or more epoxy functionalized groups.
6. coating composition as claimed in claim 5, at least a in the wherein said latex polymer comprise glycidyl methacrylate, glycidyl acrylate, vinylformic acid-4-hydroxyl butyl ester glycidyl ether with and combination.
7. as each described coating composition in the claim 1 to 6, the minimum film-forming temperature of the blend of the oxyethane functional components of wherein said one or more latex polymers and described aliphatic epoxy resin system is less than about 20 ℃.
8. coating composition as claimed in claim 1, wherein said latex polymer comprises the acetoacetoxy groups functionality.
9. as each described coating composition in the claim 1 to 8, wherein said latex polymer comprises one or more amidos.
10. as each described coating composition in the claim 1 to 9, wherein said coating composition further comprises the silicate of about 2wt.% to 50wt.%;
Wherein said silicate is potassium silicate, ammonium silicate, water glass, lithium silicate or its mixture.
11. as each described coating composition in the claim 1 to 10, wherein said oxyethane functional components is the oxyethane precursor molecule and contain alcohol matter or contain the reaction product of carboxylic acid material.
12. coating composition as claimed in claim 11, the at least a portion that wherein contains in the alcohol matter is an ethylene glycol, propylene glycol, 1, ammediol, 1, the 4-butyleneglycol, 1, the 3-butyleneglycol, the 2-methyl isophthalic acid, ammediol, neopentyl glycol, 2,2-butyl ethyl propylene glycol, hexylene glycol, glycol ether, dipropylene glycol, polyoxyethylene glycol, polypropylene glycol, cyclohexanedimethanol, 2,2, the 3-neopentyl glycol, TriMethylolPropane(TMP), ethoxylated trimethylolpropane, the propoxylation TriMethylolPropane(TMP), glycerol, the propoxylation glycerol, tetramethylolmethane, the ethoxylation tetramethylolmethane, pentaerythritol propoxylate, Dipentaerythritol, tripentaerythritol, ethoxylation Dipentaerythritol and propoxylation Dipentaerythritol, ethoxylation tripentaerythritol and propoxylation tripentaerythritol, ditrimethylolpropane, hydroxypivalyl hydroxypivalate pivalyl ester, Hydrogenated Bisphenol A, ethoxylation and propenoxylated Hydrogenated Bisphenol A, Isosorbide or its mixture.
13. coating composition as claimed in claim 11, the at least a portion that wherein contains in the carboxylic acid material is propanedioic acid, succsinic acid, pentanedioic acid, sebacic acid, FUMARIC ACID TECH GRADE, hexanodioic acid, pimelic acid, hexahydrophthalic acid, 1,3-cyclohexane dicarboxylic acid and 1,4-cyclohexane dicarboxylic acid, phthalic acid, m-phthalic acid, maleic acid, hexachloro endoethylene tetrahydrophthalic acid, oxyacetic acid, citric acid, trimellitic acid, lactic acid, caprolactone or its mixture.
14. as each described coating composition in the claim 1 to 13, wherein said oxyethane functional components has about epoxy equivalent (weight) of 90 to 350.
15. a coated article, it comprises that one or more layers comprises second vanish system of latex polymer as each described composition in the claim 1 to 14 and one or more layers.
16. a coated article, it comprises that one or more layers comprises second vanish system of functionalized latex polymer, multistage latex polymer or functionalized multistage latex polymer as each described composition in the claim 1 to 14 and one or more layers.
17. a coating process, it comprise be applied to base material as each described coating composition in the claim 1 to 14 and allow as described in coating sclerosis.
18. method as claimed in claim 17, it comprise described coating composition is applied at least one major surfaces of base material and four edges on.
19. a method that is used for preparing as each described coating composition of claim 1 to 14, it comprises:
One or more latex polymers are mixed with one or more aliphatic epoxy resins form first component;
With described first component with have and can mix with second component of the reactive group of Resins, epoxy reaction; And
With blended first component and second component applied to base material.
20. a coated article, it comprises:
Cement fiberboard substrate; And
Be applied to first vanish system of described base material, wherein said first vanish system comprises:
Aliphatic epoxy resin system with one or more latex polymers;
Wherein said first vanish system comprises one or more coating compositions that can be applied one or more layers.
21. coated article as claimed in claim 20, wherein said latex polymer has the Tg between 5 ℃ and 70 ℃.
22. as claim 20 or 21 described coated articles, wherein said latex polymer is multistage latex.
23. as each described coated article in the claim 20 to 22, wherein said latex polymer comprises one or more epoxy functionalized groups.
24. as each described coated article in the claim 20 to 23, at least a in wherein said one or more latex polymers comprises glycidyl methacrylate, glycidyl acrylate, vinylformic acid-4-hydroxyl butyl ester glycidyl ether or its combination.
25. as each described coated article in the claim 20 to 22, wherein said latex polymer comprises one or more amidos.
26. as each described coated article in the claim 20 to 25, wherein said first vanish system further comprises the silicate of about 2wt.% to 50wt.%;
Wherein said silicate is potassium silicate, ammonium silicate, water glass, lithium silicate or its mixture.
27. as each described coated article in the claim 20 to 26, wherein said goods are being coated with described first vanish system on two major surfacess He on four edges.
28. as each described coated article in the claim 20 to 27, wherein said first vanish system further comprises one or more olefinic compounds and is radiation-hardenable.
29. as each described coated article in the claim 20 to 28, wherein said first vanish system is administered to about 6gm/m 2And 60gm/m 2Between dry film weight.
30. as each described coated article in the claim 20 to 29, it further comprises second vanish system, described second vanish system comprises: (i) contain the priming paint of latex, (ii) contain the finish paint of latex, or (iii) both.
31. coated article as claimed in claim 30, wherein said second vanish system comprises functionalized latex polymer, multistage latex polymer or functionalized multistage latex polymer.
32. as claim 30 or 31 described coated articles, wherein said second vanish system comprises: (i) contain the priming paint of acetoacetoxy groups functional emulsoid, or (ii) contain the finish paint of acetoacetoxy groups functional emulsoid, or (iii) both.
33. as claim 31 or 32 described coated articles, wherein said goods are being coated with described first vanish system and described second vanish system on two major surfacess He on four edges.
34. as each described coated article in the claim 20 to 33, wherein said goods on two major surfacess and four edges, be coated with 3 microns-30 microns build described first vanish system and be coated with second primer base of 3 microns-20 microns build.
35. as each described coated article in the claim 20 to 34, wherein said first vanish system comprises one or more pigment.
36. as each described coated article in the claim 20 to 35, wherein said goods can withstand freeze-thaw cycle at least 30 times.
37. a coated article, it comprises:
Cement fiberboard substrate; And
Be applied to first vanish system of described base material, wherein said first vanish system comprises:
Aliphatic epoxy resin system with one or more aqueous dispersion of polymer particles; And
Wherein said first vanish system comprises one or more coating compositions that can be applied one or more layers.
38. coated article as claimed in claim 37, wherein said aqueous dispersion of polymer particles are polyurethane polymer, latex polymer or both mixtures.
39. as claim 37 or 38 described coated articles, wherein said aqueous dispersion of polymer particles is a polyurethane polymer.
40. a method, it may further comprise the steps:
Cement fiberboard substrate is provided;
First vanish system is applied to described base material;
Wherein said first vanish system comprises the aliphatic epoxy resin system with one or more aqueous dispersion of polymer particles;
Wherein said first vanish system comprises one or more coating compositions that can be applied one or more layers; And
Allow described first vanish system sclerosis.
41. method as claimed in claim 40, it further may further comprise the steps:
Second vanish system is applied to described base material, and wherein said second vanish system comprises latex polymer.
42. as claim 40 or 41 described methods, wherein said latex polymer is functionalized latex polymer or multistage latex polymer or functionalized multistage latex polymer.
43. as each described method in the claim 40 to 42, wherein before using described second vanish system, described first vanish system is dried at least in part.
44. as each described method in the claim 40 to 43, wherein before using described second vanish system, described first vanish system is dried.
45., wherein when described first vanish system is still wet, just described second vanish system is applied to described first vanish system as each described method in the claim 40 to 44.
46. as each described method in the claim 40 to 45, it further comprises one of them of described vanish system or two steps that are exposed to UV-light.
CNA2007800329657A 2006-07-07 2007-07-09 Coating systems for cement composite articles Pending CN101547876A (en)

Applications Claiming Priority (3)

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US60/819,505 2006-07-07
US60/898,621 2007-01-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448963A (en) * 2013-09-13 2015-03-25 昆山博瑞达新材料科技发展有限公司 Visible light super-transmissible coating material for Low-E glass and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104448963A (en) * 2013-09-13 2015-03-25 昆山博瑞达新材料科技发展有限公司 Visible light super-transmissible coating material for Low-E glass and preparation method thereof
CN104448963B (en) * 2013-09-13 2018-05-04 江苏春阳幕墙门窗股份有限公司 Low-E glass visible rays surpass antireflective coating layer material and preparation method thereof

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