WO2006008037A1 - Utilisation de pellicules et/ou de films de resine de melanine pour des operations de revetement en 3d - Google Patents
Utilisation de pellicules et/ou de films de resine de melanine pour des operations de revetement en 3d Download PDFInfo
- Publication number
- WO2006008037A1 WO2006008037A1 PCT/EP2005/007578 EP2005007578W WO2006008037A1 WO 2006008037 A1 WO2006008037 A1 WO 2006008037A1 EP 2005007578 W EP2005007578 W EP 2005007578W WO 2006008037 A1 WO2006008037 A1 WO 2006008037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formaldehyde
- melamine
- iii
- coating
- films
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/249—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs characterised by the additives used in the prepolymer mixture
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/245—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using natural fibres
-
- 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
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/26—Aminoplasts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
Definitions
- the present invention relates to melamine resin films and / or films produced from cellulosic fibrous materials containing an aqueous solution containing
- thermoplastic films are used, for. B. for coating Holzwerk ⁇ materials in the furniture industry.
- the significant advantage of these thermoplastic films is until now their elasticity, disadvantageous are the high costs in the production u.a. caused by the additional use of adhesives, and the expected costs for disposal.
- the self-adhesive low-cost melamine resin films which are used for example in the furniture industry for the finishing of smooth surfaces, as well for the coating of three-dimensionally structured surfaces. Pure melamine resins are too brittle for this application. Improved flexibility could be achieved according to DE-A 23 09 334 with etherified methylol melamine resins. These are mainly used for the production of composite materials such as melamine resin films. For this purpose, for. As papers, fabrics or nonwovens impregnated with the melamine resin and cured at temperatures of 100 to 18O 0 C. These melamine resin films are mainly used for surface treatment of wood-based materials such as chip-hardboard and blockboard.
- the melamine resin films are glued to the surfaces or edges of the wood-based materials using a suitable adhesive, if appropriate using heat and pressure.
- a suitable adhesive if appropriate using heat and pressure.
- the melamine resins have been modified, e.g. B. by adding guanamine to DE-A 44 39 156 or by adding small amounts of an aqueous resin dispersion according to DE-A 38 37 965.
- a combination of Aminoplast resins with acrylate dispersions brings about a certain elasticity of the films produced according to DE-A 37 00 344.
- the patents described above disclose exclusively the production of so-called soft edges. When coating the soft edges with these melamine resin films, adhesives are needed as described in the examples to secure the resin films to the edges.
- the known melamine resin films are, as far as the property of ductility, still capable of improvement.
- the uniform coating of surfaces with three-dimensional structures such as e.g. may be found in some styles (rustic furniture), and / or formkör ⁇ pern desired that melamine resin or melamine resin films can be used, which have an improved elasticity over the known with improved ver ⁇ or at least as good other properties.
- self-adhesive melamine resin films which hitherto were only suitable for coating smooth surfaces should be indicated for 3D coating.
- the coating should be done for aesthetic reasons and at the same time to simplify the production in a single pressing process.
- the main feature of such films or films lies in the deformability during the pressing process.
- the object was achieved by the use of melamine resin films and / or films, produced from cellulosic fibrous materials or fabrics containing an aqueous solution containing
- 3D coating is to be understood as the partial or complete coating of bodies, structures, reliefs, profiles, embossings and the like. These have three-dimensionally structured surfaces, that is to say shapes, configurations or structures which extend in all three spatial directions. The changes in shape can be both fluid and abrupt, as for example in sharp-edged structures, such as edges, corners and / or points, which describe a defined angle, which results from two or more converging planes. Furthermore, “three-dimensional deformation” is also understood to mean the full coating, or simultaneous / simultaneous coating of fronts and edges, of regular or irregular shaped bodies, profiles and the like.
- the quantities of the components (i), (ii) and (iii) are complementary to 100 wt .-% and relate to the liquid resin mixture.
- the degree of alkylation describes the number of etherified methylol groups.
- Auxiliaries and additives may also be added to the melamine resin mixture according to the invention, for example from 0.1 to 50% by weight, preferably from 0.2 to 30% by weight, in particular from 0.5 to 20% by weight, of urea, caprolactam, Phenyldiglycol, butanediol and / or saccharose, based on 100 wt .-% of the mixture (i) to (iii). Furthermore, it may contain conventional additives such as wetting agents, curing agents and catalysts.
- non-etherified melamine-formaldehyde condensates are used as constituent component (i).
- the preparation of the building component (i) is well known.
- first 1 mol of melamine with 1, 4 condenses to 2 moles of formaldehyde at a pH of from 7 to 9 and at temperatures of 40 to 100 0 C, until the appropriate con- densationsgrad achieved.
- Melamine is usually used in solid form.
- formaldehyde is used in the form of concentrated aqueous solutions, for example as an aqueous solution of from 30 to 70 percent by weight, preferably as a 40 to 60 percent by weight solution.
- melamine-formaldehyde condensates are etherified with C 1 -C 4 -alcohols, such as methanol, ethanol, propanol, isopropanol, butanol and / or isobutanol. Preferred are methanol and ethanol.
- C 1 -C 4 -alcohols such as methanol, ethanol, propanol, isopropanol, butanol and / or isobutanol. Preferred are methanol and ethanol.
- the preparation of the structurikom ⁇ component (ii) is well known. The production is usually carried out in two stages. First, melamine is typically hydroxymethylated in a basic medium with formaldehyde. Then the pH is lowered and C 1 to C 4 alcohols, for example methanol, fed to carry out the alkylation. The condensation conditions depend on the water dilutability desired for the resin, which is at least 1: 6. After condensation, the melamine resins
- copolymer dispersions are used whose copolymers preferably contain carboxyl, hydroxyl, amide, glycidyl, carbonyl, N-methylol, N-alkoxymethyl, amino and / or hydrazo groups, in particular carboxyl groups. , Hydroxy, amide, glycidyl, carbonyl, N-methylol, N-alkoxymethyl, amino and / or hydrazo-containing acrylates.
- the abovementioned functional groups in the copolymer are obtained in the customary manner by copolymerizing corresponding monomers which carry these functional groups.
- the copolymers generally contain the abovementioned functional groups in such amounts that they contain from 0.1 to 50% by weight, preferably from 0.3 to 20% by weight, based on the copolymer, of these monomers having functional groups. may contain lymerinstrument.
- main monomers of the comonomers with the above-mentioned groups are the customary copolymerizable therewith olefinically unsaturated monomers, for example C 1 - to C 12 -alkyl esters of acrylic acid and methacrylic acid, preferably C 1 - to C 8 -alkyl, such as methyl acrylate, methyl methacrylate, ethyl acrylate, Ethyl methacrylate, propyl acrylate, propyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, lauryl acrylate and lauryl methacrylate; Vinyl esters of C 2 - to C 4 -carboxylic acids, for example vinyl acetate and vinyl propionate, C 1 - to C 4 -dialkyl esters of maleic acid and fumaric acid, vinylaromatics such as st
- the components (i), (ii) and (iii) are usually for preparing the Harzmi- research for 2 to 30 minutes, advantageously for 10 to 20 minutes, mixed ver ⁇ at 15 to 30 0 C.
- the resin mixture Before impregnation, the resin mixture is usually mixed with one or more hardeners.
- Bronsted acids such as organic sulfonic acids and carboxylic acids and their anhydrides, e.g. Maleic acid, maleic anhydride and formic acid, ammonium compounds, e.g. Ammonium sulfate, Am ⁇ moniumsulfit, ammonium nitrate, ethanol ammonium chloride, dimethylethanolammonium sulfite and hardener combinations such as morpholine / p-toluenesulfonic into consideration.
- Bronsted acids such as organic sulfonic acids and carboxylic acids and their anhydrides, e.g. Maleic acid, maleic anhydride and formic acid
- ammonium compounds e.g. Ammonium sulfate, Am ⁇ moniumsulfit, ammonium nitrate, ethanol ammonium chloride, dimethylethanolammonium sulfite and hardener
- the hardeners can be added in amounts of from 0 to 2.5% by weight, based on the aqueous impregnating resin.
- the skilled worker is aware that the hardener dosage can be adapted to the respective application requirements, wherein the reactivity of the impregnating resin / hardener mixtures z. B. can be adjusted according to the measurement of turbidity times and gel times.
- auxiliary agents such as wetting agents may be added to the resin mixtures of components (i), (ii) and (iii).
- Suitable wetting agents are, for example, ethoxylated fatty alcohols or alkylphenol ethoxylates which can be added in amounts of from 0 to 1% by weight, based on the resin solution.
- the melamine resin film and / or film used according to the invention has the required high elasticity without loss of the remaining quality properties, which is necessary for the coating of three-dimensionally structured surfaces and / or shaped articles and / or structured articles with sharp-edged elements.
- sharp-edged elements u.a. Edges, corners and points ver ⁇ stood, which describe a defined angle, which results from two or more converging planes.
- absorbent cellulosic fibrous materials or fabrics or decorative paper are used in a manner known per se.
- the customary impregnation systems are suitable which bring about the desired amount of resin onto and into the papers in the so-called one-stage or two-stage process.
- the advantage of the two-stage process is that, if appropriate, different aminoplast resins can be used for the initial and post-impregnation.
- the aminoplast films or films made in this manner are then hot formed.
- the films or films are pressed at elevated temperatures of for example 150 to 21O 0 C and / or elevated pressures of for example 7 to 30 bar during a pressing time of for example 10 to 60 s with the substrate.
- Preferred substrates are wood-based materials, e.g. Country-style furniture, and "Oriented Strand Board” (OSB) panels.
- the bonding preferably takes place flat in a single work step, i.
- the three-dimensionally structured surface is coated with a single melamine resin film or film over the entire structure in a single pressing process.
- the term “melamine resin film” is to be understood as meaning a non-self-adhesive film, the term “melamine resin film” describing a self-adhesive film.
- adhesion takes place during coating by the aminoplast resin, i. it is advantageous self-adhesive Aminoplastharzfilme used for 3D deformation.
- the preserving surfaces are clear and well closed with good deformability.
- Comparison component (ii) etherified melamine-formaldehyde condensate of melamine (95 g) and formaldehyde (40 wt .-%, 455 ml) at a pH of 8 to 8.5 and temperatures of 60 to 7O 0 C. methylolated. Methanol (910 mL) was added at pH 4 and the reaction mixture was held at 60 ° C for one hour. Subsequently, the pH of the mixture was adjusted to 8 to 9 and the reaction mixture was concentrated.
- Example 1 20 g of component (i), 30 g of component (ii) and 40 g of component (iii) were mixed at a pH of 7 to 9 at a temperature of 20 to 25 ° C for 10 to 20 minutes , The resulting resin mixture had a viscosity of 55 mPas.
- Comparative Example 20 g of the component (i), 30 g of the comparative component (ii) and 40 g of the component (iii) were at a pH of 7 to 9 at a temperature of 20 to 25 0 C for 10 to 20 minutes mixed.
- the resulting resin mixture had a viscosity of 57 mPas.
- Example 1 and Comparative Example were after addition of 0.5 wt .-% hardener based on the resin mixture (eg organic salt of para-toluenesulfonic acid) on decorative paper with a basis weight of 80 g / m 2 so impregnated and then dried that the decorative papers had a solids content of 120 to 130% and had a residual moisture content of 6 to 10%.
- 0.5 wt .-% hardener based on the resin mixture eg organic salt of para-toluenesulfonic acid
- the obtained melamine resin films were pressed on a MDF (Medium Density Fiber) plate having a diameter of 16.5 cm including a 3D structure.
- 3D structures are to be understood as contours with round and straight surfaces and / or edges with a defined angle.
- the pressing process took place in a laboratory press at 150 to 16O 0 C under a force of 45 kN and in a time of 30-60 s instead.
- Deformability The deformability and the adhesion of the melamine resin film on the MDF board including a 3D structure were evaluated. With good deformability, the coating should rest completely against the structure and firmly adhere to it without tearing, breaking or folding.
- the obtained melamine resin film was formed on a smooth MDF board at a temperature of 160-165 0 C under a pressure of 25 Kp and in a time of 110 s pressed. The following tests were carried out:
- Curing The quality of the cure was determined by exposing the coated MDF board to a 0.2N hydrochloric acid stained with 0.004 wt.% Rhodamine B solution for 16 hours. With good curing, the surface is not attacked by the acid. The strength of the attack can be judged by the strength of the red color.
- the closed nature or porosity of the coated surface serves to assess the sensitivity to dirt.
- the surface to be tested was rubbed in with black shoe cream and then cleaned again with a cloth. The remaining in the pores shoe polish allows an assessment of the closed nature of the surfaces.
- the black level measurement was carried out according to D 3265 with a Tint Tester 527 with brightness measuring head Tint Sensor.
- the measuring range covers 0-99.99 brightness units, where zero is the lowest brightness level (absolutely black). With values> 0.8 a clear graying is already recognizable.
- test specimen was measured three times and the mean value was indicated as blackness.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004034528A DE102004034528A1 (de) | 2004-07-15 | 2004-07-15 | Verwendung von Metaminharzfolien und/oder -filmen zur 3D-Beschichtung |
| DE102004034528.7 | 2004-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006008037A1 true WO2006008037A1 (fr) | 2006-01-26 |
Family
ID=35207875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/007578 Ceased WO2006008037A1 (fr) | 2004-07-15 | 2005-07-13 | Utilisation de pellicules et/ou de films de resine de melanine pour des operations de revetement en 3d |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102004034528A1 (fr) |
| WO (1) | WO2006008037A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059583A (zh) * | 2014-06-09 | 2014-09-24 | 杨超 | 人造板专用尿醛树脂胶的制备方法 |
| CN108794714A (zh) * | 2018-06-25 | 2018-11-13 | 重庆建峰工业集团有限公司 | 一种高甲醚化三聚氰胺树脂低温稳定性的快速判定方法 |
| CN115768946A (zh) * | 2020-07-10 | 2023-03-07 | 巴斯夫欧洲公司 | 片材或卷材形式的树脂浸渍纤维材料 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014116960A1 (de) * | 2014-11-19 | 2016-05-19 | Synthopol Chemie Dr. Rer. Pol. Koch Gmbh & Co. Kg | Verfahren zur Herstellung einer wässrigen Polymer/Melamin-Dispersion |
| DE102015103514B4 (de) | 2015-03-10 | 2019-05-09 | Fritz Egger Gmbh & Co. Og | Verfahren zur Herstellung eines Laminates, Laminat erhältlich nach dem Verfahren, Verwendung eines Härters für Aminoplastharze zur Herstellung solcher Laminate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3700344A1 (de) * | 1986-10-24 | 1988-04-28 | Cassella Ag | Verfahren zur herstellung von melaminharzfolien |
| EP0368215A1 (fr) * | 1988-11-09 | 1990-05-16 | BASF Aktiengesellschaft | Résines synthétiques aqueuses thermodurcissables pour le revêtement de matériaux en bois |
| DE19937759A1 (de) * | 1999-08-10 | 2001-02-15 | Basf Ag | Verfahren zur Herstellung von Platten mit dekorativer Oberfläche |
| WO2004065484A1 (fr) * | 2003-01-17 | 2004-08-05 | Basf Aktiengesellschaft | Utilisation de feuilles et/ou de films de resine de melamine pour revetir des surfaces et/ou des corps moules presentant des structures tridimensionnelles |
-
2004
- 2004-07-15 DE DE102004034528A patent/DE102004034528A1/de not_active Withdrawn
-
2005
- 2005-07-13 WO PCT/EP2005/007578 patent/WO2006008037A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3700344A1 (de) * | 1986-10-24 | 1988-04-28 | Cassella Ag | Verfahren zur herstellung von melaminharzfolien |
| EP0368215A1 (fr) * | 1988-11-09 | 1990-05-16 | BASF Aktiengesellschaft | Résines synthétiques aqueuses thermodurcissables pour le revêtement de matériaux en bois |
| DE19937759A1 (de) * | 1999-08-10 | 2001-02-15 | Basf Ag | Verfahren zur Herstellung von Platten mit dekorativer Oberfläche |
| WO2004065484A1 (fr) * | 2003-01-17 | 2004-08-05 | Basf Aktiengesellschaft | Utilisation de feuilles et/ou de films de resine de melamine pour revetir des surfaces et/ou des corps moules presentant des structures tridimensionnelles |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059583A (zh) * | 2014-06-09 | 2014-09-24 | 杨超 | 人造板专用尿醛树脂胶的制备方法 |
| CN108794714A (zh) * | 2018-06-25 | 2018-11-13 | 重庆建峰工业集团有限公司 | 一种高甲醚化三聚氰胺树脂低温稳定性的快速判定方法 |
| CN108794714B (zh) * | 2018-06-25 | 2020-12-15 | 重庆建峰工业集团有限公司 | 一种高甲醚化三聚氰胺树脂低温稳定性的快速判定方法 |
| CN115768946A (zh) * | 2020-07-10 | 2023-03-07 | 巴斯夫欧洲公司 | 片材或卷材形式的树脂浸渍纤维材料 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004034528A1 (de) | 2006-02-16 |
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