WO2003106525A1 - Verfahren zur härtung von aminoplasten - Google Patents
Verfahren zur härtung von aminoplasten Download PDFInfo
- Publication number
- WO2003106525A1 WO2003106525A1 PCT/EP2003/006176 EP0306176W WO03106525A1 WO 2003106525 A1 WO2003106525 A1 WO 2003106525A1 EP 0306176 W EP0306176 W EP 0306176W WO 03106525 A1 WO03106525 A1 WO 03106525A1
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- Prior art keywords
- alkyl
- alkylene
- chr
- aminoplast
- polycondensates
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/76—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from other polycondensation products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09D161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C09D161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
Definitions
- the invention relates to a method for curing aminoplasts and aminoplastics products which are produced by the method.
- Aminoplasts such as melamine-formaldehyde resins or melamine-urea-formaldehyde resins [Ullmanns Encyclopedia of Industrial Chemistry (1987), Vol. A2, 130-131] are known.
- a disadvantage in the production of products from melamine resins is the difficult processability by conventional thermoplastic processing methods such as extrusion, injection molding or blow molding.
- Low-molecular melamine resin precondensates have a melt viscosity that is too low for these processing methods and can only be processed as highly filled molding compounds with long cycle times while hardening the products (Woebcken, W., Kunststoff-Handbuch Vol. 10 "Duroplasts", Carl Hanser Verlag Kunststoff 1988 , Pp. 266-274).
- Fibers [DE 195 15 277 A1, EP 0 093 965 A2], foams or coatings [DE 24 22 803 B1] made of melamine resins can only be produced starting from solutions of the melamine resin precondensates with hardening during the shaping because of the low melt viscosity of the melamine resin precondensates.
- Known hardeners in the production of melamine resin fibers are organic acids such as formic acid, acetic acid, amidosulfonic acids or amino acids [DE 195 15 277 A1] or alkali salts such as alkali disulfites, alkali phosphates or alkali polyphosphates [EP 0 093 965 A2].
- the use of iodonium salts (DE 100 63 066) or blocked sulfonic acids (WO 00 10 972) as a component of radiation-sensitive polymerizable or crosslinkable formulations is also known.
- the object of the present invention is a method for curing aminoplasts, in which solvent-free thin aminoplast layers or aminoplast threads can be cured.
- the object was achieved by a method for curing aminoplasts, in which layers according to the invention with layer thicknesses up to 300 ⁇ m or threads or fiber fibrids with a diameter up to 300 ⁇ m
- hardener which can be activated by actinic light, consisting of b1) acidifiers of the blocked sulfonic acid type of the general formula (I) R 1 - sOr- O— R 2 (I)
- R. unsubstituted or substituted aryl, biphenyl or alkyl, ⁇ CO-R 3
- Suitable light sources are point light sources and surface radiators.
- suitable light sources are carbon arc lamps, xenon arc lamps, low-pressure, medium-pressure and high-pressure mercury lamps, which can optionally be doped with metal halides, such as metal-halogen lamps, microwave-excited metal-vapor lamps, excimer lamps, superactinic fluorescent tubes, fluorescent lamps, argon lamps, fluorescent lamps , and laser light sources such as excimer lasers.
- metal halides such as metal-halogen lamps, microwave-excited metal-vapor lamps, excimer lamps, superactinic fluorescent tubes, fluorescent lamps, argon lamps, fluorescent lamps , and laser light sources such as excimer lasers.
- blocked sulfonic acid of the general formula are used as the acid generator blocked sulfonic acids preferred, in which the substituents
- R 1 unsubstituted or by one or more of the substituents halogen, C r C 4 -haloalkyl, C r C 16 -alkyl, CC 4 -alkoxy, C r C 4 -alkyl-CO- NH-, phenyl-CO-NH- , Benzoyl- or nitro-substituted C 6 -C 10 aryl or C 7 - C 12 arylalkyl,
- Z c & c M aryl, C2- c 4 alkyl, C2- c 4 alkenyl, C7- c 8 bicycloalkenyl, where
- R 3 CC 12 alkyl, CC 4 haloalkyl, C 2 -C 6 alkenyl, C 5 -C 12 cycloalkyl, unsubstituted or by one or more of the substituents halogen, CC 4 haloalkyl, Crd ⁇ - ⁇ lky., CC 4 -alkoxy, C r C -alkyl-CO- NH-, phenyl-CO-NH-, benzoyl or nitro-substituted C 6 -C ⁇ 0 aryl and / or C 7 -C 12 arylalkyl, CrC 8 alkoxy, C 5 -C 8 cycloalkoxy, phenoxy or H 2 N-CO-NH-, -CN, C 2 -C 5 alkyloyl, benzoyl, C 2 -C 5 alkoxycarbonyl, phenoxycarbonyl, morpholino-, piperidino-, CC 12 Alkyl, CC
- R 5 H, CC 12 alkyl or cyclohexyl, or R 3 and R 4 or R 5 together with the atoms to which they are attached form a 5- to 8-membered ring which is fused by 1 or 2 benzo radicals can.
- blocked sulfonic acids examples include benzil monoxime tosylate, benzil monoxime p-dodecylbenzenesulfonate, 4-nitroacetophenone oxime tosylate, ⁇ -tosyloxyimino-caproic acid ethyl ester, ⁇ -cyclohexylsulfonyloxyimino-phenyl acetic acid (4-phenyl) phenyl-phenyl chloro-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-phenyl-
- O Z G6 -C 24 aryl, C 2 -C 4 alkyl, C 2 -C 4 alkenyl, C 7 -C 8 bicycloalkenyl,
- halogen-substituted triazine derivatives which can be used in the process according to the invention as hardeners which can be activated by actinic light are 1,3,5-tribromomethyl-2,4,6-triazine and 1,3,5-trichloromethyl-2,4 , 6-triazine.
- onium salts which can be used in the process according to the invention as hardeners which can be activated by actinic light are examples of onium salts which can be used in the process according to the invention as hardeners which can be activated by actinic light are examples of onium salts which can be used in the process according to the invention as hardeners which can be activated by actinic light are examples of onium salts which can be used in the process according to the invention as hardeners which can be activated by actinic light are
- Aryldiazonium salts such as phenyldiazonium hexafluoroarsenate, toluyldiazonium tetrafluoroborate and phenyldiazonium hexafluorophosphate,
- Diarylhalonium salts such as 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate, 4-isobutylphenyl-4'-methylpheny) iodonium-4-chlorophenylsulfonate, 4 - (- methyl-but-2-yl) phenyl-4'- methylphenyliodonium nonafluoro-butyl sulfonate, diphenylbromonium hexafluoroantimonate, diphenyliodonium-8-anilinonaphthalene-1-sulfonate, diphenyl-iodonium-9,10-dimethoxyanthracene-2-sulfonate and diphenylchloronium hexafluoroantimonate,
- Triarylsulfonium salts such as tris (4-methoxyphenyl) sulfonium hexafluoroarsenate, 3,5-dimethyl-4-hydroxyphenylsulfonium hexafluorophosphate and benzyl (p-hydroxyphenyl) methylsulfonium hexafluoroantimonate,
- Triaryiselenonium salts such as 3,5-diphenyl-4-hydroxyphenylsulfonium tetrafluoroborate and tris (4-ethoxyphenyl) sulfonium hexafluorophosphate,
- N-alkoxypyridinium salts such as N-ethoxypyridinium tetrafluoroborate or N-methoxy-pyridinium hexafluorophosphate.
- the preferred onium salt as hardener is the onium salt of the formula
- the aminoplast polycondensates with molar masses of 1000 to 300000 used in the process according to the invention for curing aminoplasts are preferably polycondensates of melamine resins, urea resins, cyanamide resins, dicyandiamide resins, sulfonamide resins and / or guanamine resins.
- melamine resins polycondensates of melamine or melamine derivatives and d-C ⁇ -aldehydes with a molar ratio of melamine or melamine derivative / C Ca-aldehydes 1: 1, 5 to 1: 6 and their partial etherification products are preferred, the melamine derivatives by hydroxy-C -C 0 -alkyl groups, hydroxy-CrC 4 -alkyl- (oxa-C 2 -C -alkyl) 1 .
- the melamine resins can also contain 0.1 to 10% by mass, based on the sum of melamine and melamine derivatives, of built-in phenols and / or urea.
- Phenol, CrCg-alkylphenols, hydroxyphenols and / or bisphenols are suitable as phenol components.
- urea resins optionally used in the process according to the invention are, in addition to urea-formaldehyde resins, also mixed condensates with phenols, acid amides or sulfonic acid amides.
- sulfonamide resins optionally used in the process according to the invention are sulfonamide resins made from p-toluenesulfonamide and formaldehyde.
- guanamine resins optionally used in the process according to the invention are resins which contain benzoguanamine, acetoguanamine, tetramethoxymethylbenzoguanamine, caprinoguanamine and / or butyroguanamine as guanamine component.
- aniline resins optionally used in the process according to the invention are aniline resins which, in addition to aniline, may also contain toluidine and / or xylidines as aromatic diamines.
- polycondensates of melamine resins which are mixtures of meltable 4 to 1000 core polytriazine ethers in the process according to the invention for curing aminoplasts, the triazine segments being in the polytriazine ether
- R -NH 2 , -NH-CHR 2 -0-R 3 , -NH-CHR 2 -0-R -OH, -CH 3 , -C 3 H 7 , -C 6 H 5, -OH, P thalimido succinimido, -NH-CO- C5 -c ⁇ -alkyl, -NH-C 5 -C 18 -alkylene-OH, -NH-CHR 2 -0-C5-C 18 -alkylene-NH 2 , -NH- C 5 -C 18 alkylene-NH 2 , -NH-CHR2-0-R 4 -0-CHR 2 -NH-, -NH-CHR 2 -NH-, -NH-CHR 2 -0-C5-C 18 -Alkylene-NH-, -NH-C 5 -C 18 -alkylene-NH-, -NH-CHR 2 -0-CHR 2 -NH-,
- R 2 H, C r C 7 alkyl
- R 3 CC 18 alkyl, H
- R 4 C 2 -C 18 alkylene, -CH (CH 3 ) -CH2-0- C 2-ci2-alkylene-0-CH 2 -CH (CH 3 ) -, -CH (CH 3 ) -CH2- 0- C 2.ci2-arylene-0-CH 2 -CH (CH 3 ) -, - [CH2-CH 2 -0-CH 2 -CH 2 ] n -, - [CH2-CH (CH 3 ) -0 -CH2-CH (CH 3 )] n -, - [- 0-CH 2 -CH2-CH2-CH 2 -] n-, - [(CH 2 ) 2.
- Y - ⁇ c 6 -c ⁇ 4 arylene-CO-0 - ( ⁇ Si -0- [Si-0] y -CO- C6 - cw-arylene- ⁇ C ⁇ -C 4 -alkyl C ⁇ -C -alkyl
- terminal trincine segments in the polytriazine ethers are triazine segments of the structure
- Y -NH-CHR 2 -OR 3 , -NH-CHR 2 -0-R -OH and optionally -NH-CHR 2 -0-C 5 -C 18 alkylene-NH 2 , -NH-C5-C 18 -Alkylene-NH2, -NH-C 5 -C 18 -alkylene-OH,
- R 1 -NH 2 , -NH-CHR 2 -OR 3 , -NH-CHR 2 -0-R 4 -OH, -CH 3 , -C 3 H 7 , -C 6 H 5 , -OH, phthalimido Succinimido, -NH-CO-R 3 , -NH-C 5 -C 18 alkylene-OH, -NH-C 5 -C ⁇ 8 alkylene-NH 2 , -NH-CHR 2 -0-C 5 -Ci 8- alkylene-NH 2 ,
- R 2 H, CC 7 alkyl
- R 3 C r C 18 alkyl, H
- R 4 C 2 -C 18 alkylene, -CH (CH 3 ) -CH 2 -0- C2 .ci 2 -alkylene-0-CH 2 -CH (CH 3 ) -, -CH (CH 3 ) -CH2 -0-c2-ci2-arylene-0-CH 2 -CH (CH 3 ) -, - [CH2-CH2-0-CH 2 -CH 2 ] n -, - [CH 2 -CH (CH 3 ) -0 -CH 2 -CH (CH 3 )] n -, - [- O-CH2-CH2-CH2-CH2- -, - [(CH 2 ) 2 .
- X ⁇ (CH 2 ) 2 . 8 -0-CO- C6 .c ⁇ 4 arylene-CO-0- (CH 2 ) 2-8- ⁇ or - ⁇ (CH2) 2-8-0-CO- C2 .c ⁇ 2 alkylene-CO-0- ( CH 2 ) 2 . 8 - ⁇ ;
- the 4- employed in the invented method to 1,000 core polytriazine ethers can be prepared by etherification of melamine resin precondensates with -C 4 alcohols, optionally with subsequent partial transetherification with C 4 -C 18 alcohols, C 2 -C ⁇ 8 diols, polyhydric alcohols of Type glycerol or pentaerythritol, C 5 -C 18 amino alcohols, polyalkylene glycols, hydroxyl-containing polyesters, siloxane polyesters, siloxane polyethers, melamine-alkylene oxide adducts and / or dinuclear phenol-alkylene oxide adducts and / or reaction with C 5 -C 8 -diamines and / or , and subsequent thermal condensation of the modified melamine resin condensates are produced in the melt in a continuous cooler at temperatures of 140 to 220 ° C.
- maleic anhydride copolymers optionally used in the process according to the invention are C 2 -C 20 olefin - maleic anhydride copolymers or copolymers of maleic anhydride and C 8 -C 20 - vinyl aromatics.
- Examples of the C 2 -C 20 olefin components which may be contained in the maleic anhydride copolymers are ethylene, propylene, butene-1, isobutene, diisobutene, hexene-1, octene-1, heptene-1, pentene 1, 3-methylbutene-1, 4-methylpentene-1, methylethylpentene-1, ethylpentene-1, ethylhexene-1, octadecene-1 and 5,6-dimethylnorbornene.
- Examples of the C 8 -C 20 vinylaromatic compounds which can be contained in the maleic anhydride copolymers are styrene, methylstyrene, dimethylstyrene, isopropenylstyrene, p-methylstyrene and vinylbiphenyl.
- modified maleic anhydride copolymers optionally used in the process according to the invention are partially or completely esterified, amidated or imidized maleic anhydride copolymers.
- Modified copolymers of maleic anhydride and C 2 -C 20 olefins or C 8 -C 2 o-vinyl aromatics with a molar ratio of 1: 1 to 1: 9 and molar mass weight averages of 5000 to 500000 which are mixed with ammonia, CrC 18 monoalkylamines, C 6 -C 18 aromatic monoamines, C 2 -C 18 monoamino alcohols, monoaminated poly (C 2 -C 4 alkylene) oxides with a molecular weight of 400 to 3000, and / or mono-etherified poly (C 2 -C 4- alkylene) oxides having a molar mass of 100 to 10,000 have been reacted, the molar ratio of anhydride groups copolymer / ammonia, amino groups CrC 18 /
- nanoparticles in the form of layered silicates which may be used in the process according to the invention are montmorillonite, bentonite, kaolinite, muscovite, hectorite, fluorhectorite, kanemite, Revdit, grumantite, llerite, saponite, beidelite, nontronite, stevensite, laponite, taneolite, vermiculite , Volkonskoit, Magadit, Rectorit, Kenyait, Sauconit, Borfluorophlogopite and synthetic Smectite.
- the meltable aminoplast polycondensates which may contain maleic anhydride copolymers and / or nanoparticles, are preferably used in the form of cylindrical, lenticular, pastille-shaped or spherical particles with an average diameter of 0.5 to 8 mm in the production of the aminoplast melts.
- 5-zone screws with feed zone, compression zone, shear zone, decompression zone and homogenization zone are preferred. Screws with cutting depths of 1: 2.5 to 1: 3.5 are preferred.
- the interposition of static mixers or melt pumps between the cylinder and the nozzle is particularly favorable.
- Maleic anhydride copolymers and / or nanoparticles insofar as these components have not already been incorporated in the assembly of the aminoplast polycondensates, can also be added to the melt of the aminoplast polycondensates in a continuous kneader.
- the processing temperatures of the aminoplast polycondensates containing light-activatable hardeners from the melt are determined by the temperature interval above the melting point of the aminoplast polycondensates and below the thermally induced decomposition temperature of the light-activatable hardeners.
- a light-activatable hardener for an aminoplast polycondensate, the thermally induced decomposition temperature of which is at least 45 degrees above the melting temperature of the aminoplast polycondensate.
- Usual residence times in the continuous kneader during the production and homogenization of the melt are 2 to 12 minutes.
- layers of aminoplasts are preferably cured continuously by irradiation of the melt layer of the aminoplast polycondensate applied to moving carrier materials.
- the aminoplast melt can be applied to the moving carrier material by means of a slot die or by spraying.
- carrier materials to which the melt layer of the aminoplast polycondensate is applied in the process according to the invention for the subsequent curing by radiation are webs of textile fabrics such as nonwovens and woven fabrics, paper,. Cardboard or wood veneer, or Board material made of wood or plywood, chipboard, fibreboard or multi-layer composite panels.
- Thin foamed layers on the support materials can be produced if the melts of the aminoplast polycondensates contain gas-releasing blowing agents such as sodium bicarbonate, azodicarbonamide, citric acid / bicarbonate blowing systems and / or cyanuric acid trihydrazide, or volatile hydrocarbons such as pentane, isopent into the melt before discharge , Propane and / or isobutane, or gases such as nitrogen, argon and / or carbon dioxide are metered, the layer being foamed when the melt is discharged from the slot die.
- gas-releasing blowing agents such as sodium bicarbonate, azodicarbonamide, citric acid / bicarbonate blowing systems and / or cyanuric acid trihydrazide, or volatile hydrocarbons such as pentane, isopent into the melt before discharge , Propane and / or isobutane, or gases such as nitrogen, argon and / or carbon dioxide are metered, the layer being foamed when
- threads or fiber fibrids made of aminoplasts are preferably hardened continuously by irradiation of the threads or fiber fibrids discharged as a viscous melt after fiber formation.
- filament yarns according to the method of the invention can be carried out in short spinning systems by transferring the light-activating hardener-containing melt of the aminoplast polycondensates by means of a melt pump into the capillary tool, extruding the threads in the blow chute with simultaneous application of actinic light and drawing off the threads with the help of high-speed godets and further processing Successor devices from the thermal post-curing chamber, stretching device and winder take place.
- Fiber fibrids and nonwovens according to the method according to the invention can be melt-blown by transferring the light-activable hardener-containing melt of the aminoplast polycondensates by means of a melt pump into the capillary tool, extrusion of the threads from the capillary tool into the blow chute with application of a hot air flow around the capillary nozzle openings be produced with simultaneous irradiation with actinic light.
- the air flow simultaneously stretches the melted thread Divided into many individual fibers with fiber diameters from 0.5 to 12 ⁇ m. Further processing of the fiber fibrids deposited on the screen conveyor belt to form nonwovens can be carried out by applying thermal bonding or needling processes to achieve the required strength and dimensional stability.
- aminoplastics preferably textile fabrics or coatings, which are produced by the method described above.
- textile fabrics are fire protection and heat protection clothing containing aminoplast fibers, fire protection blankets, temperature-resistant electrical insulation fabrics, filter inserts for hot gases and felts for paper machines.
- coatings are aminoplast-coated textile fabrics such as nonwovens and fabrics, and aminoplast-coated paper, cardboard or wood veneer, or coated board material made of wood or plywood, chipboard, wood fiber boards or multi-layer composite boards.
- the surface of the hardened resin layer was scanned with a needle, the load of which is increased from 0 to 40 mN in 10 load steps. Is determined the force at which the surface of the hardened resin layer is permanently deformed.
- a polycondensate of melamine and formaldehyde with a melamine / formaldehyde ratio of 1: 3 is used as the melamine resin.
- the methylol groups of the melamine resin are predominantly etherified by methanol, the methoxy group content of the resin is 20% by mass.
- the molar mass of the resin is around 2000 g / mol.
- the plate is passed under the emitter on a conveyor belt and exposed with a power of 1.4 W / cm 2 at an oxygen concentration of 15% by volume and a temperature of 140.degree.
- a tack-free, completely hardened surface is obtained.
- the surface of the hardened resin layer is only permanently deformed when an applied force of 28 mN is applied.
- a non-irradiated coated plate under the same test conditions shows a permanent deformation of the surface of the resin layer with a force of 4 mN.
- Example 1 Carrying out the experiment as in Example 1. With a reduced oxygen concentration of 100 ppm, results as in Example 1 are obtained with the same light output.
- Example 5 The melt of the resin-hardener mixture is applied with a layer thickness of 50 ⁇ m to a glass plate (thickness 6 mm) preheated to 140 ° C. Under irradiation conditions as in Example 1, a completely hardened surface is obtained with an output of 0.5 W / cm 2 . A permanent deformation of the surface of the resin layer is observed in the scratch test from a force of 30 mN.
- Example 5
- the melt of the resin-hardener mixture is applied with a layer thickness of 50 ⁇ m to a glass plate (thickness 6 mm) preheated to 140 ° C. A completely hardened surface is obtained under irradiation conditions as in Example 1.
- the melamine resin used is a melamine-formaldehyde precondensate based on 2,4,6-tris-methoxymethylamino-1, 3,5-triazine which is re-etherified with an ethylene glycol diether of bisphenol A (Simulsol BPLE, Seppic SA, France).
- the molecular weight determined by GPC is 1800, the content of non- set Simulsol BPLE after HPLC analysis (solution in THF, UV detection with external standard) is 14 mass%.
- the proportion of the -OCH 3 groups in the re-etherified melamine resin (determined by GC analysis after cleavage of the polytriazine ether with mineral acid) is 14.5% by mass.
- the viscosity at 140 ° C is 800 Pa.s.
- the transetherification of the melamine-formaldehyde precondensate based on 2,4,6-tris-methoxymethylamino-1, 3,5-triazine and further condensation takes place at 200 ° C in the laboratory extruder GL 27 D44 with vacuum degassing (Leistritz) at a temperature profile of 100 ° C / 130 ° C / 130 ° C / 200 o C / 200 o C / 200 o C / 200 o C / 200 ° C / 200 ° C / 100 ° C / 100 ° C and an average residence time of 2 to 3 min instead.
- the extruder speed is 150 min -1 .
- 2,4,6-Tris-methoxymethylamino-1,3,5-triazine at 1.38 kg / h and the ethylene glycol diether of bisphenol A at 1.13 are fed into the feed zone of the extruder kg / h dosed gravimetrically by means of side-stream metering
- the strand of the polytriazine ether emerging from the extruder is cut in a granulator.
- the transetherified melamine resin is compounded at 130 ° C. with 1% by mass, based on the melamine resin, of 2- (4-methoxyphenyl) -4,6-bis (trichloromethyl) -1, 3,5-triazine as a light-activatable hardener.
- the compound is melted in the extruder at a melt temperature of 150 ° C and spun into threads using a spinning pump and spinnerets at 145 ° C °.
- the molten, highly viscous threads are irradiated at 135 ° C. in the exposure system with a power of 1 W / cm 2 .
- the 35 ⁇ m thick fibers obtained in this way can be wound up without sticking, whereas unexposed fibers stick very quickly.
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003276951A AU2003276951A1 (en) | 2002-06-14 | 2003-06-12 | Method for curing aminoplasts |
EP03740231A EP1517933A1 (de) | 2002-06-14 | 2003-06-12 | Verfahren zur härtung von aminoplasten |
US10/517,963 US20060084007A1 (en) | 2002-06-14 | 2003-06-12 | Method for curing aminoplasts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0090302A AT500298A1 (de) | 2002-06-14 | 2002-06-14 | Verfahren zur härtung von aminoplasten |
ATA903/2002 | 2002-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003106525A1 true WO2003106525A1 (de) | 2003-12-24 |
Family
ID=29721126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/006176 WO2003106525A1 (de) | 2002-06-14 | 2003-06-12 | Verfahren zur härtung von aminoplasten |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060084007A1 (de) |
EP (1) | EP1517933A1 (de) |
AR (1) | AR040185A1 (de) |
AT (1) | AT500298A1 (de) |
AU (1) | AU2003276951A1 (de) |
CO (1) | CO5470289A1 (de) |
TW (1) | TW200404839A (de) |
WO (1) | WO2003106525A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104449191A (zh) * | 2014-10-23 | 2015-03-25 | 安徽省实防新型玻璃科技有限公司 | 一种具有磁疗作用的玻璃门用水性涂料及其制备方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6596628B2 (ja) * | 2013-10-17 | 2019-10-30 | 日産化学株式会社 | 感光性繊維およびその製造方法 |
Citations (4)
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US4430380A (en) * | 1981-03-26 | 1984-02-07 | Cassella Aktiengesellschaft | Bonded structures of textile materials |
US6017675A (en) * | 1995-10-31 | 2000-01-25 | Ciba Specialty Chemials Corporation | Oximesulfonic acid esters and the use thereof as latent sulfonic acids |
US20010036591A1 (en) * | 1999-12-21 | 2001-11-01 | Reinhard Schulz | Iodonium salts as latent acid donors |
WO2002046507A2 (en) * | 2000-12-04 | 2002-06-13 | Ciba Specialty Chemicals Holding Inc. | Onium salts and the use therof as latent acids |
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US3535148A (en) * | 1968-08-07 | 1970-10-20 | Continental Can Co | Process for preparing polymerized aminoplast surface coatings using ionizing radiation |
DE1919678A1 (de) * | 1969-04-18 | 1970-11-05 | Bayer Ag | Alpha-Methylol-benzoin-sulfonsaeureester |
US4469832A (en) * | 1982-09-29 | 1984-09-04 | Ppg Industries, Inc. | Aminoplast curable coating compositions containing polycyclic esters of sulfonic acids as latent acid catalysts |
US4477618A (en) * | 1982-09-29 | 1984-10-16 | Ppg Industries, Inc. | Aminoplast curable coating compositions containing sulfonic acid esters as latent acid catalysts |
GB8332073D0 (en) * | 1983-12-01 | 1984-01-11 | Ciba Geigy Ag | Polymerisable compositions |
DE3702999C2 (de) * | 1987-02-02 | 2003-03-06 | Siemens Ag | Vorrichtung zur Verarbeitung von UV-härtbaren Reaktionsharzmassen und deren Anwendung |
US5047568A (en) * | 1988-11-18 | 1991-09-10 | International Business Machines Corporation | Sulfonium salts and use and preparation thereof |
CA2019693A1 (en) * | 1989-07-07 | 1991-01-07 | Karen Ann Graziano | Acid-hardening photoresists of improved sensitivity |
US5236472A (en) * | 1991-02-22 | 1993-08-17 | Minnesota Mining And Manufacturing Company | Abrasive product having a binder comprising an aminoplast binder |
US5916999A (en) * | 1996-04-22 | 1999-06-29 | Basf Aktiengesellschaft | Process for producing filaments from melamine/formaldehyde condensation products |
TW575792B (en) * | 1998-08-19 | 2004-02-11 | Ciba Sc Holding Ag | New unsaturated oxime derivatives and the use thereof as latent acids |
-
2002
- 2002-06-14 AT AT0090302A patent/AT500298A1/de not_active Application Discontinuation
-
2003
- 2003-06-10 AR ARP030102075A patent/AR040185A1/es unknown
- 2003-06-12 AU AU2003276951A patent/AU2003276951A1/en not_active Abandoned
- 2003-06-12 US US10/517,963 patent/US20060084007A1/en not_active Abandoned
- 2003-06-12 WO PCT/EP2003/006176 patent/WO2003106525A1/de not_active Application Discontinuation
- 2003-06-12 EP EP03740231A patent/EP1517933A1/de not_active Withdrawn
- 2003-06-13 TW TW092116173A patent/TW200404839A/zh unknown
- 2003-06-13 CO CO03050558A patent/CO5470289A1/es not_active Application Discontinuation
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US4430380A (en) * | 1981-03-26 | 1984-02-07 | Cassella Aktiengesellschaft | Bonded structures of textile materials |
US6017675A (en) * | 1995-10-31 | 2000-01-25 | Ciba Specialty Chemials Corporation | Oximesulfonic acid esters and the use thereof as latent sulfonic acids |
US20010036591A1 (en) * | 1999-12-21 | 2001-11-01 | Reinhard Schulz | Iodonium salts as latent acid donors |
WO2002046507A2 (en) * | 2000-12-04 | 2002-06-13 | Ciba Specialty Chemicals Holding Inc. | Onium salts and the use therof as latent acids |
Non-Patent Citations (1)
Title |
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ASAKURA T ET AL: "NOVEL PHOTOACID GENERATORS", JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY, CHIBA, JP, vol. 13, no. 2, 2000, pages 223 - 230, XP001021340, ISSN: 0914-9244 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104449191A (zh) * | 2014-10-23 | 2015-03-25 | 安徽省实防新型玻璃科技有限公司 | 一种具有磁疗作用的玻璃门用水性涂料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
AR040185A1 (es) | 2005-03-16 |
CO5470289A1 (es) | 2004-12-30 |
AU2003276951A1 (en) | 2003-12-31 |
AT500298A1 (de) | 2005-11-15 |
US20060084007A1 (en) | 2006-04-20 |
EP1517933A1 (de) | 2005-03-30 |
TW200404839A (en) | 2004-04-01 |
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