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US20060173102A1 - Synthetic material dispersions - Google Patents

Synthetic material dispersions Download PDF

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Publication number
US20060173102A1
US20060173102A1 US10/539,935 US53993503A US2006173102A1 US 20060173102 A1 US20060173102 A1 US 20060173102A1 US 53993503 A US53993503 A US 53993503A US 2006173102 A1 US2006173102 A1 US 2006173102A1
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United States
Prior art keywords
melamine resin
weight
water
melamine
synthetic resin
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Abandoned
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US10/539,935
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English (en)
Inventor
Daniel Jocham
Manfred Ratzsch
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AMI Agrolinz Melamine International GmbH
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AMI Agrolinz Melamine International GmbH
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Assigned to AMI-AGROLINZ MELAMINE INTERNATIONAL GMBH reassignment AMI-AGROLINZ MELAMINE INTERNATIONAL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RATZSCH, MANFRED, JOCHAM, DANIEL
Publication of US20060173102A1 publication Critical patent/US20060173102A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0461—Ornamental plaques, e.g. decorative panels, decorative veneers used as wall coverings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
    • C08G12/32—Melamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/40—Chemically modified polycondensates
    • C08G12/42—Chemically modified polycondensates by etherifying
    • C08G12/424—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds
    • C08G12/425—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds based on triazines
    • C08G12/427—Melamine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/51—Triazines, e.g. melamine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/16—Wood, e.g. woodboard, fibreboard, woodchips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2331/00—Polyvinylesters
    • B32B2331/04—Polymers of vinyl acetate, e.g. PVA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2377/00—Polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures

Definitions

  • the invention relates to synthetic resin dispersions for the production of hydrophilic sheet-like structures or hydrophilic shaped articles provided with hydrophobic surfaces.
  • hydrophilic sheet-like structures such as paper or cardboard
  • impregnated with conventional melamine resin solutions is their low resistance to weathering when used outdoors, since water; can diffuse unimpeded into the impregnated surface layer and initiate cracking in the surface layer.
  • a known process for improving the resistance to weathering of hydrophilic sheet-like structures impregnated with melamine resin is the additional coating of the impregnated sheet-like structures with a hydrophobic top layer of polyvinyl fluoride (U.S. Pat. No. 3,676,290 A), polyacrylates (DE 33 29 679 C1; EP 0 824 560 A1; U.S. Pat. No. 3,841,956 A; DE 36 30 315 A1), unsaturated polyesters (EP 0 824 560 A1) or ethylene/propylene rubber (EP 0 206 832 A1).
  • polyvinyl fluoride U.S. Pat. No. 3,676,290 A
  • polyacrylates DE 33 29 679 C1; EP 0 824 560 A1; U.S. Pat. No. 3,841,956 A; DE 36 30 315 A1
  • unsaturated polyesters EP 0 824 560 A1
  • ethylene/propylene rubber EP 0 206 832 A1
  • Melamine resin dispersions which comprise completely or partly cured melamine resin particles are furthermore known. According to U.S. Pat. No. 3,945,980 A, an amine resin precondensate is diluted, with the addition of polyvinyl alcohol, until its water miscibility limit is exceeded and is cured under acid conditions. U.S. Pat. No. 5,344,704 A describes dispersions of cured ground melamine resin particles in water or melamine resin solutions. However, nanoscale dispersions and hydrophobic surfaces cannot be achieved with these dispersions.
  • the object of the invention is synthetic resin dispersions for the production of hydrophilic sheet-like structures or hydrophilic shaped articles provided with hydrophobic surfaces.
  • hydrophilic sheet-like structures or hydrophilic shaped articles provided with hydrophobic surfaces can be produced by coating hydrophilic sheet-like structures or hydrophilic shaped articles with aminoplast dispersions which comprise hydrophobic and hydrophilic melamine resin components and hydrophobizing agents.
  • the synthetic resin dispersions according to the invention preferably comprise 0.1 to 5% by weight of pigments and/or 0.1 to 5% by weight of flameproofing agents, in each case based on the total weight of the melamine resin precondensates.
  • suitable pigments which can be contained in the synthetic resin dispersions according to the invention are iron oxide, isoindoline pigments containing ester groups, anthracene fluorescent dyestuffs, carbazole-dioxazine and delta-indanthrone blue pigment.
  • Suitable flameproofing agents which can be contained in the synthetic resin dispersions according to the invention are ammonium polyphosphate, melamine cyanurate and zinc borate.
  • melamine resin precondensates in the aqueous and in the organic nanophase are melamine resin precondensates which can contain formaldehyde, acetaldehyde and/or trimethylolacetaldehyde as aldehyde components and, in addition to melamine, also acetoguanamine and/or benzoguanamine as melamine components.
  • the melamine resin precondensates in the aqueous phase and in the organic nanophase of the synthetic resin dispersions according to the invention are preferably melamine resin precondensates based on melamine and formaldehyde.
  • the concentration of the curing catalysts both in the hydrophilic and in the water-insoluble melamine resin precondensates is preferably 0.05 to 3% by weight, based on the melamine resin precondensates.
  • the molar ratio of aldehyde component/melamine component in the hydrophilic melamine resin precondensates is 1.6:1 to 4.5:1 and if the concentration of the hydrophilic melamine resin precondensates in the aqueous phase is 10 to 50% by weight.
  • the hydrophilic melamine resin precondensates are melamine resin precondensates partly etherified with C 1 -C 4 -alcohols and/or non-etherified melamine resin precondensates and the mixing ratio in the mixtures of water and C 1 -C 6 -alcohols is 95:5 to 5:95.
  • the content of hydroxyl groups which are not etherified with C 1 -C 4 -alcohols in the melamine resin precondensates partly etherified with C 1 -C 4 -alcohols is 5 to 75 mol %, based on the sum of hydroxyl groups and C 1 -C 4 -alkoxy groups in the melamine resin precondensates partly etherified with C 1 -C 4 -alcohols.
  • Examples of melamine resin precondensates partly etherified with C 1 -C 4 -alcohols are precondensates which contain 2,4-bis(methoxymethylamino)-6-hydroxymethylamino-1,3,5-triazine, 2-butoxymethylamino-4,6-dihydroxymethylamino-1,3,5-triazine or 2-ethoxymethyamino-4-methoxymethylamino-6-hydroxymethyamino-1,3,5-triazine as the main component in a mixture with higher molecular weight oligomers thereof.
  • non-etherified melamine resin precondensates are precondensates which contain 2,4,6-tris(hydroxymethylamino)-1,3,5-triazine, 2,4-bis(hydroxymethylamino)-6-amino-1,3,5-triazine or 2,4-bis(hydroxymethylamino)-6-(dihydroxymethyl)imino-1,3,5-triazine as the main component in a mixture with higher molecular weight oligomers thereof.
  • Synthetic resin dispersions in which the aqueous phase contains 1 to 20% by weight, based on the hydrophilic melamine resin precondensates, of further water-soluble polymers and/or water-soluble polyhydric alcohols with molecular weights of 62 to 5,000 are furthermore preferred.
  • the further water-soluble polymers in the aqueous phase of the synthetic resin dispersions according to the invention are preferably hydroxyalkyl(meth)acrylate copolymers, polyhydroxy esters, polyvinyl alcohol, polypropylene oxides, polycaprolactone and/or ethylene oxide/propylene oxide block copolymers.
  • hydroxyalkyl(meth)acrylate copolymers as further water-soluble polymers in the aqueous phase of the synthetic resin dispersions according to the invention are hydroxy-ethyl acrylate/methyl methacrylate copolyers and acrylamide/hydroxybutyl acrylate copolymers.
  • polyhydroxy esters as further water-soluble polymers in the aqueous phase of the synthetic resin dispersions according to the invention are polyhydroxy esters based on phthalic anhydride and glycerol and polyhydroxy esters based on maleic anhydride and pentaerythritol.
  • water-soluble polyhydric alcohols with molecular weights of 62 to 5,000 which can be contained in the aqueous phase of the synthetic resin dispersions are ethylene glycol, tripropylene glycol, hexanediol, pentaerythritol, sorbitol, polyethylene glycols and polytetrahydrofurans.
  • Preferred synthetic resin dispersions are those in which the water-insoluble etherified melamine resin precondensates in the organic nanophase are melamine resin precondensates completely etherified with C 1 -C 4 -alcohols, C 2 -C 20 -diols and/or polyalkylene oxides with molecular weights of 250 to 5,000 and/or melamine resin precondensates partly etherified with C 5 -C 18 -alcohols, C 2 -C 20 -diols and/or polyalkylene oxides with molecular weights of 250 to 5,000.
  • Examples of the melamine resin precondensates which are completely etherified with C 1 -C 4 -alcohols and are preferably contained in the organic nanophase as water-insoluble etherified melamine resin precondensates are precondensates which contain 2,4,6-tris(methoxymethylamino)-1,3,5-triazine, 4,6-bis(ethoxymethylamino)-2-butoxymethylamino-1,3,5-triazine or 2,4,6-tris(dimethoxymethylimino)-1,3,5-triazine as the main component in a mixture with higher molecular weight oligomers thereof.
  • Examples of the melamine resin precondensates which are partly etherified with C 5 -C 18 -alcohols and are preferably contained in the organic nanophase as water-insoluble etherified melamine resin precondensates are dihydroxymethylamino-1,3,5-triazine or 2-octyloxymethylamino-4-hexyloxymethylamino-6-hydroxymethyamino-1,3,5-triazine as the main component in a mixture with higher molecular weight oligomers thereof.
  • C 2 -C 20 -diol components which can be contained in the water-insoluble melamine resin precondensates which are completely or partly etherified with C 2 -C 20 -diols are ethylene glycol, diglycol, octanediol and diane-ethylene oxide adducts.
  • polyalkylene oxide components with molecular weights of 250 to 5,000 which can be contained in the water-insoluble melamine resin precondensates which are completely or partly etherified with polyalkylene oxides are polyethylene oxide, polypropylene oxide, ethylene oxide/propylene oxide block copolymers or polytetrahydrofurans.
  • Advantageous synthetic resin dispersions are those in which the molar ratio of aldehyde component/melamine component in the water-insoluble etherified melamine resin precondensates is 3:1 to 6:1 and the average diameter of the nanodroplets or nanoparticles is 50 to 300 nm.
  • the organic nanophase preferably comprises 0.1 to 2% by weight of stabilizers, 1 to 20% by weight of water-insoluble polyhydric alcohols with molecular weights of 134 to 5,000 and/or 1 to 30% by weight of laminar silicates, in each case based on the water-insoluble etherified melamine resin precondensates.
  • UV stabilizers such as 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)benzotriazole, 2,4-dihydroxybenzophenone, sebacic acid bis[2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl]ester or bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, and/or antioxidants, such as octadecyl 3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl)propionate.
  • UV stabilizers such as 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)benzotriazole, 2,4-dihydroxybenzophenone, sebacic acid bis[2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl]ester or bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate
  • water-insoluble polyhydric alcohols with molecular weights of 134 to 5,000 which can be contained in the organic nanophase are octanediol, dodecanediol, octadecanediol and polypropylene glycols with molecular weights of 500 to 5,000.
  • laminar silicates which can be contained in the organic nanophase are montmorillonite, bentonite, kaolinite, muscovite, hectorite, fluorohectorite, kanemite, revdite, grumantite, ilerite, saponite, beidelite, nontronite, stevensite, laponite, taneolite, vermiculite, halloysite, volkonskoite, magadite, rectorite, kenyaite, sauconite, boron fluorophlogopites and/or synthetic smectites.
  • the hydrophobizing agents which are contained in the organic nanophase are preferably 30 to 1% by weight of organic silicon compounds of the type of organosilanols, organosiloxanes, organosilanes, organoaminosilanes or polyorganosiloxanes terminated with amino end groups or hydroxyl end groups; surface-fluorinated SiO 2 nanoparticles, polytetrafluoroethylene nanoparticles and/or ethylenically unsaturated C 4 -C 20 -dicarboxylic acid anhydride copolymers containing imide groups.
  • polyorganosiloxanes terminated with amino end groups or hydroxyl end groups as hydrophobizing agents are aminopropyl-terminated polydimethylsiloxanes or hydroxybutyl-terminated polydimethylsiloxanes with molecular weights of 1,000 to 6,000.
  • organosilanols as hydrophobizing agents are trimethylsilanol, diethylsilanediol, triisopropylsilanol and triphenylsilanol.
  • organosiloxanes are tetramethyldisiloxanediol or tetraphenyldisiloxanediol.
  • organosilanes examples include tetraphenylsilane, vinyltrimethoxysilane and tetradodecyl-silane.
  • organoaminosilanes are triethylaminosilane and triphenylaminosilane.
  • Examples of surface-fluorinated SiO 2 nanoparticles are pyrogenic silicic acids which have average particle diameters in the range from 5 to 30 nm and are modified by reaction with fluorinated hydrocarbons.
  • Suitable ethylenically unsaturated C 4 -C 20 -dicarboxylic acid anhydride copolymers containing imide groups are styrene/maleic anhydride copolymers which are imidized with amines, such as octylamine, diglycolamine or ethanolamine.
  • Nonionic dispersing agents or mixtures of 50 to 99% by weight of nonionic and 1 to 50% by weight of anionic dispersing agents are advantageously employed as dispersing agents in the synthetic resin dispersions according to the invention.
  • Etherified melamine resin oligomers with molecular weights of 2,000 to 30,000 are preferably employed as dispersing agents in the synthetic resin dispersions.
  • Melamine resin oligomers etherified with polyethylene glycols with molecular weights of 1,000 to 8,000 and/or C1-C12-monoalkyl-etherified polyethylene glycols with molecular weights of 1,000 to 8,500 and C1-C10 alcohols are particularly advantageous.
  • the molar ratio here of polyethylene glycol/C1-C10-alcohol is 1:10 to 2:1 and the molar ratio of melamine/formaldehyde/etherifying alcohol is 1:2.8:2.5 to 1:4.5:3.5.
  • etherified melamine resin oligomers have a hydrophilic and a hydrophobic radical. For this reason they can act as a dispersing agent.
  • the advantage over the use of conventional dispersing agents is that the melamine resin oligomers are bonded covalently and therefore permanently in sheet-like structures.
  • the hydrophilic sheet-like structures are preferably laminates, pressed laminates or one-layered sheet-like carrier materials based on cellulose and/or polar plastics of the type of polyamide, polyester, polyvinyl acetate and/or polyvinyl alcohol, preferably paper.
  • the hydrophilic shaped articles are preferably timber products, or semi-finished products or moulded materials produced by thermoplastic processing of polar plastics of the type of polyamide, polyester, polyvinyl acetate and/or polyvinyl alcohol or by processing of blends of 55 to 90% by weight of wood and 45 to 10% by weight of thermoplastics and/or thermosetting plastics.
  • hydrophilic shaped articles are timber profiles produced by working by cutting or turned timber objects, or products of polyamide or polyethylene terephthalate produced by injection moulding or profile extrusion, such as cladding elements, covers or circular profiles.
  • thermoplastics which can be contained in the hydrophilic shaped articles of blends of 55 to 90% by weight of wood and 45 to 10% by weight of thermoplastics are polyethylene, polypropylene, polystyrene, polyamide 6 polymethyl methacrylate, poly-2,6-dimethylphenylene oxide and polybutylene terephthalate.
  • thermosetting plastics which can be contained in the hydrophilic shaped articles of blends of 55 to 90% by weight of wood and 45 to 10% by weight of thermosetting plastics are phenolic resins, urea resins and unsaturated polyester resins.
  • the latent curing catalysts contained in the aqueous phase of the synthetic resin dispersions according to the invention are preferably ammonium salts, in particular ammonium peroxydisulphate, ammonium phosphate, ammonium sulphate, ammonium chloride, ammonium oxalate and/or ammonium thiocyanate; C 1 -C 4 -alkylammonium salts of carboxylic acids, in particular methylammonium phthalate, methylammonium maleate and/or the methylamine salt of naphthalenesulphonic acid; and/or esters of phosphoric acid, phosphorous acid, oxalic acid and/or phthalic acid, in particular diethyl phosphate, oxalic acid dimethyl ester and/or phthalic acid dimethyl ester.
  • ammonium salts in particular ammonium peroxydisulphate, ammonium phosphate, ammonium sulphate, ammonium chloride, ammonium
  • Acid curing catalysts which are preferably contained in the water-insoluble melamine resin precondensates of the synthetic resin dispersions according to the invention are:
  • strong acids preferably hydrochloric acid, sulphuric acid, phosphoric acid, p-toluenesulphonic acid, methanesulphonic acid, dodecylbenzenesulphonic acid, dinonylnaphthalenesulphonic acid and/or dinonylnaphthalenedisulphonic acid.
  • Examples of blocked sulphonic acids as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are benzil monoxime tosylate, ⁇ -cyclohexylsulphonyloxy-iminophenylacetic acid ethyl ester, acetone oxime p-benzoylbenzenesulphonate, ⁇ -(4-nitrobenzene-sulphonyloxyimino)benzyl cyanide, 2-nitrobenzyl sulphonate and 2-methylsulphonyloxyimino-4-phenyl-but-3-enenitrile.
  • Examples of aliphatic C 4 -C 18 -carboxylic acids as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are butyric acid, caproic acid, palmitic acid, stearic acid and oleic acid.
  • alkali metal salts or ammonium salts of phosphoric acid as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are ammonium hydrogen phosphate, sodium polyphosphate and potassium hydrogen phosphate.
  • Examples of C 1 -C 12 -alkyl esters or C 2 -C 8 -hydroxyalkyl esters of C 6 -C 14 -aromatic carboxylic acids or inorganic acids as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are dibutyl phthalate, phthalic acid diglycol ester and/or trimellitic acid glycol ester.
  • salts of melamine or guanamines with C 1 -C 18 -aliphatic carboxylic acids as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are melamine formate, melamine citrate and/or acetoguanamine butyrate.
  • Examples of anhydrides, half-esters or half-amides of C 4 -C 20 -dicarboxylic acids as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are maleic anhydride, mono-C 1 -C 18 -alkyl maleates, such as maleic acid monobutyl ester, maleic acid monoethylhexyl ester or monostearyl maleate, or maleic acid mono-C 1 -C 18 -alkylamides, such as maleic acid monoethylamide, maleic acid monooctylamide or maleic acid monostearylamide.
  • half-esters or half-amides of copolymers of ethylenically unsaturated C 4 -C 20 -dicarboxylic acid anhydrides and ethylenically unsaturated monomers of the type of C 2 -C 20 -olefins and/or C 8 -C 20 -vinylaromatics as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are half-esters or half-amides of copolymers of maleic anhydride and C 3 -C 8 - ⁇ -olefins of the type of isobutene, diisobutene and/or 4-methylpentene and/or styrene with a molar ratio of maleic anhydride/C 3 -C 8 - ⁇ -olefin or styrene or corresponding monomer mixtures of 1:1 to 1:5.
  • Examples of salts of C 1 -C 12 -alkylamines or alkanolamines with C 1 -C 18 -aliphatic, C 6 -C 14 -aromatic or alkylaromatic carboxylic acids and inorganic acids of the type of hydrochloric acid, sulphuric acid or phosphoric acid as acid curing catalysts in the water-insoluble melamine resin precondensates which have a molar ratio of aldehyde component/melamine component up to 4:1 are ethanolammonium chloride, triethylammonium maleate, diethanolammonium phosphate and/or isopropylammonium p-toluenesulphonate.
  • Particularly preferred synthetic resin dispersions are those which comprise as nonionic dispersing agents ethylene oxide/propylene oxide block copolymers, poly(C 2 -C 4 -alkylene)oxides monoetherified with C 8 -C 18 -alcohols, esters of polyhydric alcohols with C 8 -C 18 -carboxylic acids, C 2 -C 4 -alkylene oxide adducts on C 8 -C 18 -fatty alcohols and/or copolymers of ethylenically unsaturated C 4 -C 20 -dicarboxylic acid anhydrides and ethylenically unsaturated monomers of the type of C 2 -C 20 -olefins, C 8 -C 20 -vinylaromatics, C 4 -C 21 -acrylic acid esters and/or C 5 -C 22 -methacrylic acid esters, which have been imidized with poly(C 2 -C 4 -alkylene)
  • poly(C 2 -C 4 -alkylene)oxides which are monoetherified with C 8 -C 18 -alcohols and have molecular weights of 400 to 6,000 and are contained in the synthetic resin dispersions according to the invention as nonionic dispersing agents are polyethylene glycol monostearyl ether and polyethylene glycol monododecyl ether.
  • esters of polyhydric alcohols with C 8 -C 18 -carboxylic acids contained in the synthetic resin dispersions according to the invention as nonionic dispersing agents are sorbitan fatty acid esters and polyethylene glycol glyceryl-stearate.
  • Examples of the C 2 -C 4 -alkylene oxide adducts on C 8 -C 18 -fatty alcohols contained in the synthetic resin dispersions according to the invention as nonionic dispersing agents are oxyethylated fatty alcohols and oxyethylated oxo-alcohols.
  • anionic dispersing agents in the synthetic resin dispersions according to the invention are alkyl sulphates, oxyethylated alkyl sulphates, ether sulphates, alkanesulphonates, olefinsulphonates and alkylnaphthalenesulphonates.
  • Preferred anionic dispersing agents in the synthetic resin dispersions according to the invention are alkali metal salts of (meth)acrylic acid copolymers, salts of oxyethylated C 6 -C 18 -alkylphenol-sulphates and/or alkali metal and/or ammonium salts of C 8 -C 18 -carboxylic acids and/or C 8 -C 18 -alkylsulphonates.
  • Examples of the salts of oxyethylated C 6 -C 18 -alkylphenol sulphates optionally contained in the synthetic resin dispersions according to the invention as anionic dispersing agents are oxyethylated sodium p-nonylphenol-sulphate and oxyethylated sodium p-dodecylphenol-sulphate.
  • alkali metal and/or ammonium salts of C 8 -C 18 -carboxylic acids optionally contained in the synthetic resin dispersions according to the invention as anionic dispersing agents are sodium oleate and ammonium palmitate.
  • the synthetic resin dispersions for the production of hydrophilic sheet-like structures or hydrophilic shaped articles provided with hydrophobic surfaces are prepared by a multi-stage process in which
  • the water in the second process stage contains 1 to 25% by weight, based on the total weight of the melamine resin precondensates, of C 3 -C 6 -alcohols as dispersing auxiliaries and/or water-soluble polymers and/or water-soluble polyhydric alcohols and is heated to temperatures up to 90° C., and if pigments and/or flameproofing agents are added after the cooling to room temperature.
  • a second process for the preparation of the synthetic resin dispersions according to the invention is a multi-stage process in which
  • the water-insoluble melamine resin precondensates in the first process stage and/or the aqueous solutions of the second process stage contain up to 30% by weight of hydrophobizing agent and the water in the first process stage contains 1 to 25% by weight, based on the water-insoluble melamine resin precondensates, of C 3 -C 6 -alcohols as dispersing auxiliaries and/or water-soluble polymers and/or water-soluble polyhydric alcohols and is heated to temperatures up to 90° C., and if pigments and/or flameproofing agents are added to the aqueous solutions of the second process stage.
  • suitable dispersing units with a high shear action are in-line dispersers with a circulation, stirred reactors with high-performance dispersers for stirring speeds up to 25,000 revolutions per minute or ultrasonic dispersers.
  • the invention furthermore relates to hydrophilic sheet-like structures or hydrophilic shaped articles which are provided with hydrophobic surfaces and are produced using the synthetic resin dispersions described above.
  • the application of the synthetic resin dispersions according to the invention to the hydrophilic sheet-like structure can be carried out by conventional application processes, such as roller application, doctor blade application, fluidized bed coating, dip coating, brushing and spraying processes and electrostatic spraying.
  • Favourable drying and curing temperatures are in the range from 100 to 220° C.
  • the hydrophobic surface layer produced on the hydrophilic sheet-like structures or hydrophilic shaped articles has a high adhesive strength on the hydrophilic sheet-like structures, since during the crosslinking operation it is linked chemically to the melamine resins which are based on the hydrophilic melamine resin precondensates and are absorbed into the hydrophilic sheet-like structures.
  • the thickness of the hydrophobic surfaces of the hydrophilic sheet-like structures or hydrophilic shaped articles provided with hydrophobic surfaces is preferably 1 to 40 ⁇ m.
  • Thin layer thicknesses of the hydrophobic surfaces on the hydrophilic sheet-like structures or hydrophilic shaped articles have the effect in the case of rough surfaces of good gluing properties of the products and an adequate permeability to water vapour.
  • the synthetic resin dispersions are preferably applied by spraying on after preheating of the hydrophilic sheet-like structures or hydrophilic shaped articles to 50 to 95° C., and the sheet-like structures or shaped articles impregnated with the synthetic resin dispersions are dried and cured at 100 to 145° C. It is of particular advantage to carry out the drying and curing by infra-red irradiation of the impregnated sheet-like structures or shaped articles.
  • curing is preferably carried out by conventional pressing technology under pressures of 30 to 150 bar at temperatures in the range from 140 to 170° C.
  • shaped articles such as profiles, which are produced by extrusion of blends of 55 to 90% by weight of wood and 45 to 10% by weight of thermoplastics or thermosetting plastics, or polar plastics of the type of polyamide, polyester, polyvinyl acetate and/or polyvinyl alcohol, for production of the hydrophobic surfaces it is of advantage to spray the synthetic resin dispersions on to the profile directly after the extruder die.
  • Preferred fields of use of the sheet-like structures or shaped articles coated with synthetic resin dispersions are uses in the construction sector, in particular as cladding panels, and in the sport and leisure sector where an improved resistance to weathering and the ability to be glued are required.
  • an imidized styrene/maleic anhydride copolymer (molar ratio of styrene/maleic anhydride 2:1, imidized with a mixture of 70 mol % of octylamine and 30 mol % of diglycolamine), as a hydrophobizing agent, and the components are homogenized.
  • 600 g of a water-insoluble melamine resin precondensate which contains 2,4,6-tris(methoxy-methylamino)-1,3,5-triazine as the main component in a mixture with the corresponding higher molecular weight oligomers are metered into the low-viscosity melt in the course of 20 minutes at 100° C. and the components are homogenized.
  • the homogeneous melt obtained is dispersed in the course of 15 minutes in a 2.5 l stirred reactor with a high-speed disperser (Ultra-Turrax,
  • Janke&Kunkel, Staufen which contains 990 g of water and 18 g of a 75:25 dispersing agent mixture of an oxyethylated C 16 -C 18 -alcohol mixture (80 mol of ethylene oxide/mol of alcohol) and an oxyethylated sodium pnonylphenol-sulphate (ethylene oxide content 23% by weight) at 70° C., and, after the emulsion has cooled to 35° C., 100 g of butanol, as a dispersing auxiliary, 1.2 g of methylammonium phthalate, as a latent curing agent, and 8 g of monostearyl maleate, as an acid curing catalyst, are added.
  • an oxyethylated C 16 -C 18 -alcohol mixture 80 mol of ethylene oxide/mol of alcohol
  • an oxyethylated sodium pnonylphenol-sulphate ethylene oxide content 23% by weight
  • the average particle size of the nanophase in the dispersion is 130 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 98 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 5.9% by weight, the decorative paper has a resin content of 56% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 45% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 155° C. for 180 seconds.
  • the contact angle of distilled water on the laminate surface is 102 degrees.
  • the hydrophilic melamine-formaldehyde precondensate partly etherified with methanol (molar ratio of melamine/formaldehyde/bonded methanol 1:3:2.1) is applied, after addition of 1% by weight, based on the precondensate, of methylammonium phthalate, as a latent curing agent, to the decorative paper surface, analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 75 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 5.9% by weight and lamination with kraft paper, the contact angle of distilled water on the surface of the laminate produced under analogous conditions is 69 degrees.
  • an imidized styrene/maleic anhydride copolymer molar ratio of styrene/maleic anhydride 2.6:1, imidized with a mixture of 60 mol % of octylamine and
  • a water-insoluble etherified melamine resin precondensate which contains bis-2,4(dodecyloxy-methylamino)-6-hydroxymethylamino-1,3,5-triazine as the main component in a mixture with higher molecular weight oligomers are metered into the low-viscosity melt in the course of 15 minutes at 95° C. and the components are homogenized.
  • the homogeneous melt obtained is dispersed in the course of 15 minutes in a 2.5 l stirred reactor with a high-speed disperser (Ultra-Turrax, Janke&Kunkel, Staufen), which contains 950 g of water and 24 g of an oxyethylated cetyl alcohol/stearyl alcohol mixture (27 mol of ethylene oxide/mol of alcohol, molecular weight about 1,450) at 30° C., and, after the emulsion has cooled to 20° C., 80 g of isobutanol, as a dispersing auxiliary, 3 g of ammonium oxalate, as a latent curing agent, and 5.4 g of acetoguanamine butyrate, as an acid curing catalyst, are added.
  • a high-speed disperser Ultra-Turrax, Janke&Kunkel, Staufen
  • the average particle size of the nanophase in the dispersion is 55 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 70 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 6.1% by weight, the decorative paper has a resin content of 59% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 45% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 155° C. for 180 seconds.
  • the contact angle of distilled water on the laminate surface is 102 degrees.
  • the melt obtained is dispersed in the course of 5 minutes in a 2.5 l stirred reactor with a high-speed disperser (Ultra-Turrax, Janke&Kunkel, Staufen), which contains 850 g of water and 17 g of oxyethylated oleyl alcohol (80 mol of ethylene oxide/mol of oleyl alcohol) at 65° C., and, after the emulsion has cooled to 35° C., 2.9 g of ammonium phosphate, as a latent curing agent, and 8 g of phthalic acid diglycol ester, as an acid curing catalyst, are added.
  • a high-speed disperser Ultra-Turrax, Janke&Kunkel, Staufen
  • the average particle size of the nanophase in the dispersion is 55 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 95 mol %. After drying of the decorative film in a circulating air oven at 140° C. to a volatile content of 5.7% by weight, the decorative paper has a resin content of 58% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 45% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 160° C. for 150 seconds.
  • the contact angle of distilled water on the laminate surface is 94 degrees.
  • melamine resin precondensates of 65 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 5.7% by weight, a contact angle of distilled water on the surface of the laminate produced under analogous conditions is 58 degrees results.
  • the homogeneous melt obtained is dispersed in the course of 8 minutes in a 2.5 l stirred reactor with a high-speed disperser (Ultra-Turrax, Janke&Kunkel, Staufen), which contains 810 g of water and 24 g of a propylene oxide/ethylene oxide block copolymer (ethylene oxide content 77% by weight) at 50° C., and, after the emulsion has cooled to 20° C., 3 g of ammonium peroxydisulphate, as a latent curing agent, and 3.5 g of p-toluenesulphonic acid, as an acid curing catalyst, are added.
  • a high-speed disperser Ultra-Turrax, Janke&Kunkel, Staufen
  • the average particle size of the nanophase in the dispersion is 90 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 72 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 5.9% by weight, the decorative paper has a resin content of 56% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 45% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 155° C. for 130 seconds.
  • the contact angle of distilled water on the laminate surface is 101 degrees.
  • 330 g of a hydrophilic melamine-formaldehyde precondensate partly etherified with methanol, molar ratio of melamine/formaldehyde/bonded methanol 1:3:2.1, which contains 30 g of isobutanol, as a hydrophilic melamine resin precondensate, are melted at 108° C. in a 2.5 l stirred reactor with the addition of 12.3 g of aminopropyl-terminated polydimethylsiloxane (molecular weight 3,000, amine content 1.1 mol %), as a hydrophobizing agent, and the components are homogenized.
  • 600 g of a water-insoluble melamine resin precondensate which contains 2,4,6-tris(methoxy-methylamino)-1,3,5-triazine as the main component in a mixture with the corresponding higher molecular weight oligomers are metered into the low-viscosity melt in the course of 20 minutes at 108° C. and the components are homogenized.
  • the homogeneous melt obtained is dispersed in the course of 15 minutes in a 2.5 l stirred reactor with a high-speed disperser (Ultra-Turrax, Janke&Kunkel, Staufen), which contains 990 g of water and 18 g of a 75:25 dispersing agent mixture of an oxyethylated C 16 -C 18 -alcohol mixture (80 mol of ethylene oxide/mol of alcohol) and an oxyethylated sodium p-nonylphenol-sulphate (ethylene oxide content 23% by weight) at 70° C., and, after the emulsion has cooled to 35° C., 100 g of butanol, as a dispersing auxiliary, 1.2 g of methylammonium phthalate, as a latent curing agent, and 8 g of monostearyl maleate, as an acid curing catalyst, are added.
  • a high-speed disperser Ultra-Turrax, Janke&Kunkel, Stauf
  • the average particle size of the nanophase in the dispersion is 50 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 98 mol %. After drying in a circulating air oven at 140° C. to a volatile content of 5.9% by weight, the decorative paper has a resin content of 56% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 45% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 155° C. for 170 seconds.
  • the contact angle of distilled water on the laminate surface is 108 degrees.
  • hydrophilic melamine-formaldehyde precondensate partly etherified with methanol (molar ratio of melamine/formaldehyde/bonded methanol 1:3:2.1) is applied, after addition of 1% by weight, based on the precondensate, of methylammonium phthalate, as a latent curing agent, to the decorative paper surface,
  • a storage-stable low-viscosity mixture is formed and, after addition of 2.5 g of maleic acid, is used as an impregnating resin for decorative paper.
  • the average particle size of the nanophase in the dispersion is 120 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 99 mol %. After drying in a circulating air oven at
  • the decorative paper has a resin content of 48% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 48% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 150° C. for 180 seconds.
  • the contact angle of distilled water on the laminate surface is 98 degrees.
  • the preparation of the emulsion according to example 6 is repeated. However, 3.5 g of the ethylene oxide/dimethylsiloxane block copolymer are added at the same batch size. 3.5 g of maleic acid monobutyl ether instead of maleic acid, as a curing agent, are now added to 400 g of this emulsion using a high-speed disperser (Ultra-Turrax, Janke&Kunkel, Staufen).
  • a high-speed disperser Ultra-Turrax, Janke&Kunkel, Staufen.
  • the average particle size of the nanophase in the dispersion determined with a particle size detector (Zeta-Sizer), is 125 nm.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 48% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 150° C. for 180 seconds.
  • the contact angle of distilled water on the laminate surface is 96 degrees.
  • the emulsion was prepared analogously to example 6, but no polysiloxane block copolymer and maleic acid were added.
  • the average particle size of the nanophase in the dispersion, determined with a particle size detector (Zeta-Sizer), is 95 nm.
  • Maleic acid monobutyl ether is employed as the curing agent in an amount of 3 g (0.6% by weight, based on the total resin solids).
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 48% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 150° C. for 180 seconds.
  • the contact angle of distilled water on the laminate surface is 94 degrees.
  • the average particle size of the nanophase in the dispersion is 105 nm.
  • the decorative paper For production of a decorative paper (weight per unit area 80 g/m 2 ) provided with a hydrophobic surface, the decorative paper is coated with the synthetic resin dispersion by means of a doctor blade. Analysis of the decorative paper surface by ATR spectroscopy results in a content of etherified hydroxyl groups of the melamine resin precondensates of 98 mol %. After drying in a circulating air oven at 145° C. to a volatile content of 5.2% by weight, the decorative paper has a resin content of 52% by weight.
  • a layer of the coated decorative paper is subsequently pressed together with 3 layers of core paper (weight per unit area 180 g/m 2 , resin content 48% by weight of melamine-formaldehyde precondensate, molar ratio of melamine/formaldehyde 1:1.65) in a Collin laboratory press with a specific pressure of 90 bar at 155° C. for 200 seconds.
  • the contact angle of distilled water on the laminate surface is 106 degrees.
  • Sawdust residual moisture content 7% by weight, average particle diameter 100 ⁇ m, composition 90% by weight of spruce and 10% by weight of fir, pH 5.5 at 100 g/l in H 2 O and 20° C.
  • a butene/ethylene copolymer modified with 0.2% by weight of maleic anhydride (melt index 0.85 g/10 minutes at 190° C./5 kg, average particle size 0.08 mm) at 3.8 kg/hour are metered into the feed hopper of a Werner&Pfleiderer ZSK 30 extruder with vacuum devolatilization, profile die 6 ⁇ 6 mm and belt take-off device, temperature profile 90/140/185/210/200/165, and the mixture is melted, homogenized, devolatilized and discharged as a square profile. Before being laid on the belt take-off device, the square profile is passed through an annular nozzle spray head and coated with the synthetic resin dispersion according to example 1.
  • the contact angle of distilled water on the surface of the coated square profile from the sawdust/polyolefin blend is 90 degrees.

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060148349A1 (en) * 2004-11-15 2006-07-06 Delta Galil Industries Ltd. Moisture-management in hydrophilic fibers
US20060276581A1 (en) * 2003-07-22 2006-12-07 Ami Agrolinz Melamine International Gmbh Plastic products with high strength and flexibility
US20070267609A1 (en) * 2003-07-22 2007-11-22 Ami Agrolinz Melamine International Gmbh Composite Materials Comprising Plastics and Wood
WO2008098069A1 (fr) * 2007-02-06 2008-08-14 Nanodynamics, Inc. Migration dirigée de nanomatériaux hydrophobes au niveau de surfaces
US20080193758A1 (en) * 2005-05-10 2008-08-14 Armin Kuebelbeck Nanoscale Fluorescent Melamine Particles
US20080234423A1 (en) * 2007-03-21 2008-09-25 Alberta Research Council Inc. Phyllosilicate modified resins for lignocellulosic fiber based composite panels
WO2008156891A3 (fr) * 2007-04-05 2009-03-05 Univ Polytechnic Améliorations concernant des nanocomposite et les surfaces de ceux-ci
US20100075057A1 (en) * 2007-05-04 2010-03-25 Daimler Ag Hydrophobic and scratch-resistant paints for metal surfaces and brake dust-repelling wheel coatings
CN102001117A (zh) * 2010-10-21 2011-04-06 东北林业大学 疏水性木材的制备方法
US20170101521A1 (en) * 2014-06-27 2017-04-13 Fujifilm Corporation Thermal base generator, thermosetting resin composition, cured film, cured film manufacturing method, and semiconductor device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360320A1 (de) * 2003-12-18 2005-07-21 Ami-Agrolinz Melamine International Gmbh Melaminharzdispersion
US7803879B2 (en) * 2006-06-16 2010-09-28 Georgia-Pacific Chemicals Llc Formaldehyde free binder
US7795354B2 (en) 2006-06-16 2010-09-14 Georgia-Pacific Chemicals Llc Formaldehyde free binder
US9169157B2 (en) 2006-06-16 2015-10-27 Georgia-Pacific Chemicals Llc Formaldehyde free binder
BRPI0916067A2 (pt) * 2008-11-11 2015-11-10 Akzo Nobel Coatings Int Bv composição intumescente curável a temperatura ambiente, uso de uma composição, e, substrato
CN102001116B (zh) * 2010-10-21 2013-09-04 东北林业大学 利用含硅化合物处理细胞壁与聚合物填充细胞腔联合改性木材的方法
CN104356594B (zh) * 2014-11-27 2016-05-25 长春工业大学 一种有机硅密胺树脂复合粒子的制备方法
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CN105348462B (zh) * 2015-12-14 2017-12-12 武汉工程大学 一种三嗪基有机介孔聚合物及其制备方法和应用
CN106009506B (zh) * 2016-07-29 2018-01-19 神盾防火科技有限公司 一种清水防渗胶及其制备方法与应用
CN115466341B (zh) * 2022-09-26 2024-12-20 新乡市瑞丰新材料股份有限公司 一种无灰分散剂及其制备方法
WO2025219375A1 (fr) 2024-04-17 2025-10-23 Basf Se Composition aqueuse de durcisseur pour le durcissement de résines à base de formaldéhyde, compositions de résine respectives, substrats imprégnés, procédés et utilisations

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676290A (en) * 1969-05-15 1972-07-11 Westinghouse Electric Corp Polyvinyl fluoride surfaced laminates
US3841956A (en) * 1970-12-03 1974-10-15 Westinghouse Electric Corp Bonded weather resistant decorative laminate with slightly grained acrylic surface
US3945980A (en) * 1972-10-04 1976-03-23 Nippon Shokubai Kazaku Kogyo Co. Ltd. Process for producing finely divided hardened resins
US5344704A (en) * 1993-04-07 1994-09-06 Nevamar Corporation Abrasion-resistant, aesthetic surface layer laminate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10030563B4 (de) * 2000-06-21 2005-06-30 Agrolinz Melamin Gmbh Faserverbunde hoher Dimensionsstabilität, Bewitterungsresistenz und Flammfestigkeit, Verfahren zu deren Herstellung sowie deren Verwendung
AT410211B (de) * 2000-12-15 2003-03-25 Agrolinz Melamin Gmbh Halbzeuge und formstoffe aus aminoplasten
DE10117544B4 (de) * 2001-04-07 2005-08-04 Agrolinz Melamin Gmbh Modifizierte Aminoplaste für Halbzeuge und Formstoffe verbesserter Elastizität, Verfahren zu ihrer Herstellung und ihre Verwendung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676290A (en) * 1969-05-15 1972-07-11 Westinghouse Electric Corp Polyvinyl fluoride surfaced laminates
US3841956A (en) * 1970-12-03 1974-10-15 Westinghouse Electric Corp Bonded weather resistant decorative laminate with slightly grained acrylic surface
US3945980A (en) * 1972-10-04 1976-03-23 Nippon Shokubai Kazaku Kogyo Co. Ltd. Process for producing finely divided hardened resins
US5344704A (en) * 1993-04-07 1994-09-06 Nevamar Corporation Abrasion-resistant, aesthetic surface layer laminate

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060276581A1 (en) * 2003-07-22 2006-12-07 Ami Agrolinz Melamine International Gmbh Plastic products with high strength and flexibility
US20070267609A1 (en) * 2003-07-22 2007-11-22 Ami Agrolinz Melamine International Gmbh Composite Materials Comprising Plastics and Wood
US20060148349A1 (en) * 2004-11-15 2006-07-06 Delta Galil Industries Ltd. Moisture-management in hydrophilic fibers
US20080128044A1 (en) * 2004-11-15 2008-06-05 Yehuda Barak Moisture-management in hydrophilic fibers
US9963821B2 (en) 2004-11-15 2018-05-08 Delta Galil Industries, Ltd. Moisture-management in hydrophilic fibers
US20080193758A1 (en) * 2005-05-10 2008-08-14 Armin Kuebelbeck Nanoscale Fluorescent Melamine Particles
WO2008098069A1 (fr) * 2007-02-06 2008-08-14 Nanodynamics, Inc. Migration dirigée de nanomatériaux hydrophobes au niveau de surfaces
US20080234423A1 (en) * 2007-03-21 2008-09-25 Alberta Research Council Inc. Phyllosilicate modified resins for lignocellulosic fiber based composite panels
WO2008156891A3 (fr) * 2007-04-05 2009-03-05 Univ Polytechnic Améliorations concernant des nanocomposite et les surfaces de ceux-ci
US20100075057A1 (en) * 2007-05-04 2010-03-25 Daimler Ag Hydrophobic and scratch-resistant paints for metal surfaces and brake dust-repelling wheel coatings
CN102001117A (zh) * 2010-10-21 2011-04-06 东北林业大学 疏水性木材的制备方法
US20170101521A1 (en) * 2014-06-27 2017-04-13 Fujifilm Corporation Thermal base generator, thermosetting resin composition, cured film, cured film manufacturing method, and semiconductor device

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DK1578826T3 (da) 2007-10-29
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AU2003290080A1 (en) 2004-07-14
NO20053458L (no) 2005-07-15
JP2006510769A (ja) 2006-03-30
TW200508265A (en) 2005-03-01
AU2003290080B2 (en) 2008-06-26
PT1578826E (pt) 2007-09-12
DE10261805A1 (de) 2004-07-08
WO2004056899A1 (fr) 2004-07-08
CN1729220A (zh) 2006-02-01
ATE365179T1 (de) 2007-07-15
CA2507776A1 (fr) 2004-07-08
EP1578826B1 (fr) 2007-06-20
EP1578826A1 (fr) 2005-09-28
ES2289345T3 (es) 2008-02-01

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