EP1541751A1 - Use of protective colloid stabilized polymers as coatings - Google Patents
Use of protective colloid stabilized polymers as coatings Download PDFInfo
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- EP1541751A1 EP1541751A1 EP03028481A EP03028481A EP1541751A1 EP 1541751 A1 EP1541751 A1 EP 1541751A1 EP 03028481 A EP03028481 A EP 03028481A EP 03028481 A EP03028481 A EP 03028481A EP 1541751 A1 EP1541751 A1 EP 1541751A1
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- European Patent Office
- Prior art keywords
- use according
- vinyl
- polymer
- acid
- protective colloid
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- 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.)
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Classifications
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- 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
- D06M17/00—Producing multi-layer textile fabrics
-
- 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
- D06M17/00—Producing multi-layer textile fabrics
- D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0092—Non-continuous polymer coating on the fibrous substrate, e.g. plastic dots on fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2205/00—Condition, form or state of the materials
- D06N2205/02—Dispersion
- D06N2205/023—Emulsion, aqueous dispersion, latex
Definitions
- the invention relates to the use of a protective colloid-stabilized polymer for Coating of a carrier material.
- a sub-item is first printed on the material to be coated. This printing can be done by rotary screen printing.
- the sub-item is a paste containing an aqueous dispersion of an emulsifier-stabilized polymer, thickener and optionally pressure assistants.
- Hot melt glue spread Excess powder is sucked off. After that, the Subpoint with the hot melt adhesive powder first dried and sintered, or Hot melt adhesive is melted.
- a coated sheet comprising a coating carrier (present also referred to as a carrier material), a base or base layer applied thereon a plastic compound (also referred to herein as sub-item) and one on it provided second layer (also referred to herein as hot melt adhesive) comprises.
- the Base layer is composed of a crosslinkable, aqueous polymer dispersion, emulsion and / or solution produced.
- polymer dispersions self-crosslinking acrylic polymers, self-crosslinking polyvinyl esters or self-crosslinking styrene-acrylic or acrylic-vinyl ester copolymers used.
- the polymers used preferably have one Film formation temperature of at least 5 ° C and are usually in dispersion or emulsion form sour.
- the present invention is therefore based on the object to overcome these disadvantages.
- a protective colloid-stabilized polymer comprising a protective colloid and a polymer, dissolved for coating a support material.
- Emulsifiers are compounds which can be subsumed under the term "surfactants".
- Surfactants are compounds which can be subsumed under the term "surfactants".
- Protective colloids are surface-active substances, but they have very characteristic differences to surfactants.
- a characteristic feature of surfactants and their solutions is micelle formation. As the surfactant concentration increases, the number of molecules increases at the interface until there is no room for more. Then the time for the formation of micelles is given.
- the formation of micelles starts in a narrow range of concentration characteristic of each surfactant and depends on the molecular structure. It occurs at the concentration at which the surface is completely or substantially fully occupied and therefore the surface tension becomes independent of the increase in the concentration. By measuring the surface tension as a function of the concentration, the concentration at which the micelle formation begins can be determined in a simple manner. It is called the critical micelle concentration (CMC).
- CMC critical micelle concentration
- HLB value hydrophilic-lipophilic balance
- Protective colloid-stabilized polymers are known to the person skilled in the art. They are commercial or can be obtained by free-radically initiated polymerization of monomers below and optionally Hilfsmonomere be prepared.
- the free-radical polymerization of ethylenic unsaturated monomers can be made by suspension or emulsion polymerization. In the suspension and emulsion polymerization, in the presence of surface-active Substances of composition of 100-51% protective colloids and 0-49% emulsifiers polymerized.
- Suitable emulsifiers are both anionic, cationic and nonionic emulsifiers, for example anionic surfactants, such as alkyl sulfates having a Chain length of 8 to 18 carbon atoms, alkyl or alkylaryl ether sulfates having 8 to 18 carbon atoms in hydrophobic group and up to 60 ethylene or propylene oxide units, alkyl or Alkylarylsulfonate with 8 to 18 C-atoms, esters and half esters of sulfosuccinic acid with monohydric alcohols or alkylphenols, or nonionic surfactants such as alkyl polyglycol ethers or alkylaryl polyglycol ethers having up to 60 ethylene oxide or propylene oxide units.
- anionic surfactants such as alkyl sulfates having a Chain length of 8 to 18 carbon atoms, alkyl or alkylaryl ether sulfates having 8 to 18 carbon atoms in hydropho
- protective colloids are modified natural polymers, such as O-methylcellulose, O- (2-hydroxy-ethyl) -cellulose, O- (2-hydroxy-propyl) -cellulose, O- (2-hydroxy-propyl) -O-methyl-cellulose, O- (2-hydroxybutyl) -O-methyl-cellulose, carboxymethylcellulose (Na salt), starch ether, O- (2-hydroxypropyl) starch and lignosulfonic acid, synthetic homopolymers and copolymers, such as poly (vinyl alcohol) [partially saponified poly (vinyl acetate)], Poly (vinyl alcohol-co-ethylene), poly (methacrylic acid-sodium salts), poly [methacrylic acid-sodium-salt-co- (methacrylic acid-methyl ester)], Poly [acrylic acid-co-acrylic acid (2-ethyl-hexyl)], Poly [methacrylic acid (hydroxyl-alkyl ester)], poly (styl alcohol
- the polymers of the protective colloid-stabilized polymer are described below with reference to Monomers explained in more detail.
- the monomers may be ethylenic unsaturated monomers act.
- vinyl esters of unbranched or branched alkylcarboxylic acids having 1 to 18 carbon atoms acrylic acid esters or methacrylic acid esters of branched or unbranched alcohols or diols with 1 to 18 C atoms
- C2-C20 mono- or di-carboxylic acids their amides, N-methylolamides or Nitriles
- C2-C20 sulfonic acids 3-20-membered heterocyclic compounds with oxygen, Sulfur, selenium, tellurium, nitrogen, phosphorus, boron or aluminum as heteroatom
- dienes with at least 4 C atoms olefins having at least 2 C atoms
- vinyl aromatics in particular with Benzene or naphthalene as aromatic and C2-C20 vinyl halides.
- Preferred vinyl esters are those having 1 to 12 C atoms, in particular vinyl acetate, Vinyl propionate, vinyl butyrate, vinyl 2-ethylhexanoate, vinyl laurate, 1-methyl vinyl acetate, vinyl pivalate and vinyl esters of ⁇ -branched monocarboxylic acids having 9 to 13 C atoms.
- the acrylic or methacrylic acid ester an ester of unbranched or branched alcohols having 1 to 15 carbon atoms, in particular Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, t-butyl acrylate, t-butyl methacrylate and 2-ethylhexyl acrylate, especially methyl acrylate, methyl methacrylate, n-butyl acrylate, t-butyl acrylate, t-butyl acrylate and 2-ethylhexyl acrylate.
- Preferred mono- and di-carboxylic acids their amides, N-methylol amides and nitriles selected from acrylic acid, methacrylic acid, fumaric acid, maleic acid, acrylamide, N-methylolacrylamide, N-methylolmethacrylamide and acrylonitrile.
- the sulfonic acid is conveniently vinylsulfonic acid and 2-acrylamido-2-methylpropanesulfonic acid selected.
- the preferred heterocyclic compounds are Vinyl pyrrolidone and vinyl pyridine.
- the vinyl aromatic is styrene, methyl styrene or vinyl toluene.
- the vinyl halide is vinyl chloride.
- the olefin selected from ethylene and propylene.
- Preferred dienes are selected from 1,3-butadiene and isoprene.
- auxiliary monomers are ethylenically unsaturated C2-C20 mono- and dicarboxylic acids, preferably acrylic acid, methacrylic acid, fumaric acid and maleic acid; ethylenically unsaturated C 2 -C 20 -carboxylic acid amides and nitriles, preferably acrylamide and acrylonitrile; Mono- and diesters of fumaric acid and maleic acid such as the diethyl and diisopropyl esters, as well as maleic anhydride, ethylenically unsaturated C 2 -C 20 -sulfonic acids or their salts (alkali, alkaline earth and ammonium salts), preferably Vinylsulfonic acid, 2-acrylamido-2-
- precrosslinking C2-C20 comonomers such as polyethylenically unsaturated comonomers, For example, divinyl adipate, diallyl maleate, diallyl phthalate, allyl methacrylate or Triallyl cyanurate, or post-crosslinking comonomers, for example Acrlyamidoglykolklare (AGA), Methylacrylamidoglycolic acid methyl ester (MAGME), N-methylolacrylamide (NMA), N-methylolmethacrylamide, N-methylolallyl carbamate, C2-C20 alkyl ethers, such as the isobutoxy ether or esters of N-methylolacrylamide, N-methylolmethacrlyamide and N-methylolallylcarbamate.
- AGA Acrlyamidoglykolklad by Methylacrylamidoglycolic acid methyl ester
- NMA Methylacrylamidoglycolic acid methyl ester
- epoxide-functional C2-C20 comonomers such as Glycidyl methacrylate and glycidyl acrylate.
- silicon-functional C2-C20 comonomers such as acryloxypropyltri (alkoxy) and methacryloxypropyltri (alkoxy) silanes, Vinyltrialkoxysilane and Vinylmethyldialkoxysilane, wherein as alkoxy groups, for example Ethoxy and Ethoxypropylenglykolether residues may be included.
- C2-C20 monomers with hydroxy or CO groups for example methacrylic acid and Acrylic acid hydroxyalkyl esters, such as hydroxyethyl, hydroxypropyl or hydroxybutyl acrylate or methacrylate and compounds such as diacetoneacrylamide and acetylacetoxyethyl acrylate or methacrylate.
- the polymers are prepared from monomers or mixtures which one or more monomers from the group vinyl acetate, vinyl esters of ⁇ -branched Monocarboxylic acids having 9 to 13 C atoms, vinyl chloride, ethylene, methyl acrylate, Methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, 2-ethylhexyl acrylate or styrene.
- mixtures of vinyl acetate with ethylene of vinyl acetate, ethylene and a Vinyl esters of ⁇ -branched monocarboxylic acids having 9 to 13 carbon atoms; of n-butyl acrylate, 2-ethylhexyl acrylate and / or methyl methacrylate; of styrene with one or more monomers from the group of methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate; of vinyl acetate with one or more monomers from the group of methyl acrylate, Ethyl acrylate, propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate and optionally ethylene; wherein said mixtures optionally still one or more of the above May contain auxiliary monomers.
- These mixtures have proven to be particularly favorable because they show excellent properties in coatings at low cost.
- the monomer selection or the selection of the proportions by weight of the comonomers can be so be carried out that in general a glass transition temperature Tg of -50 ° C to + 120 ° C, preferably -30 ° C to + 95 ° C results.
- the glass transition temperature Tg of the polymer can be determined in a known manner by means of differential scanning calorimetry (DSC).
- Tgn Glass transition temperature in Kelvin of the homopolymer of the monomer n.
- Tg values for Homopolymers are described in Polymer Handbook 2nd Edition, J. Wiley & Sons, New York (1975) listed.
- the polymerization of the above monomers and optionally auxiliary monomers to the polymer can be radically intiiert.
- the radically initiated polymerization of the ethylenically unsaturated Monomers can be made by suspension polymerization and emulsion polymerization.
- the polymerization temperature may be 40 ° C to 100 ° C, preferably 60 ° C to 90 ° C.
- gaseous comonomers such as ethylene, 1,3-butadiene or Vinyl chloride
- initiation of the polymerization can be carried out with the customary water-soluble or monomer-soluble initiators or redox initiator combinations take place.
- water-soluble initiators examples include the sodium, potassium and ammonium salts of Peroxodisulfuric acid, hydrogen peroxide, t-butyl peroxide, potassium peroxodiphosphate, t-butyl peroxopivalate, Cumene hydroperoxide, isopropylbenzene monohydroperoxide, azobisisobutyronitrile.
- Examples of monomer-soluble initiators are dicetyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, Dibenzoyl peroxide, tert-butyl peroxyneodecanoate, tert-butyl peroxy-2-ethylhexanoate and tert-butyl peroxypivalate.
- the mentioned initiators are in the In general, in an amount of 0.01 to 10.0 wt .-%, preferably 0.1 to 0.5 wt .-%, respectively based on the total weight of the monomers, used as redox initiators Combinations of the mentioned initiators can be used with reducing agents.
- Suitable reducing agents are the sulfites and bisulfites of the alkali metals and of ammonium, For example, sodium sulfite, the derivatives of sulfoxylic acid, such as zinc or Alkali metal formaldehyde sulfoxylates, for example sodium hydroxymethanesulfinate, and ascorbic acid.
- the amount of reducing agent is generally from 0.01 to 10.0 wt .-%, preferably 0.1 to 0.5 wt .-%, each based on the total weight of the monomers.
- the monomers can be submitted in total, be metered in total or in Shares are submitted and added the remainder after the initiation of the polymerization become.
- the dosages can be carried out separately (spatially and temporally) or the All or part of the components to be dosed can be added pre-emulsified.
- suspension and emulsion polymerization can be polymerized in the presence of the aforementioned protective colloids to the produce protective colloid-stabilized polymers.
- the present invention in particular in the above-described preferred Embodiments has a number of advantages: First, it has been found that very low compared to other prior art coating methods Coating quantities are sufficient for sufficiently good adhesion. This is one To achieve a significant reduction in costs, and exhibit the bonded textile materials a pleasant soft grip on. With the invention used Protective colloid-stabilized polymers is a very high adhesion of the bonded textiles determine. The connection of the scattering powder to the sub-point is very good. The Adhesions associated with the coating using a protective colloid stabilized polymer are very good wash and cleaning resistant.
- the protective colloid-stabilized Polymers are used in the form of a paste.
- Paste is made from a dispersion of the protective colloid-stabilized polymer in water went out.
- the amount of water for example, about 70 wt .-%, based to the dispersion, and that of the protective colloid stabilized polymer about 30 wt .-%, also based on the dispersion amount.
- These polymer dispersions can then thickener and optionally printing assistant may be added, which then paste for coating to be obtained.
- These pastes can, for example in rotary screen printing on the coated Carrier material can be applied. In this way, a sub item for the Colon coating are produced. At the subpoint can then Melted hot melt powder are sprinkled. Excess powder can subsequently be sucked off become. The sub-item can then be dried and sintered, or the scattering powder be melted.
- the above-mentioned polymer dispersions have the advantage that they can be obtained by adding Compounds containing 2 or more epoxide, organo, halogen, hydroxy, aziridine, carbodiimide, Oxazoline, alcohol, amine, aminosilane, aminoformaldehyde, isocyanate or N-2-hydroxyalkylamide residues can be networked.
- Compounds containing 2 or more epoxide, organo, halogen, hydroxy, aziridine, carbodiimide, Oxazoline, alcohol, amine, aminosilane, aminoformaldehyde, isocyanate or N-2-hydroxyalkylamide residues can be networked.
- the intramolecular crosslinking of the Polymer also occurs a crosslinking of the polymer with the Schutzkolloidhülle and with the added additives. As a result, particularly high adhesive strengths are achieved.
- crosslinkers for example, compounds having two or more epoxy, organo, halogen, hydroxy, Aziridine, carbodiimide, oxazoline, alcohol, amine, aminosilane, aminoformaldehyde, isocyanate or N-2-hydroxyalkylamide residues.
- the substrates that can be coated may be materials to act of any kind. It can be flexible, not very flexible or not flexible at all. examples are textile materials of any kind, such as woven, knitted, woven knitted fabric, Raschelwaren (natural and synthetic fibers), fleece of any material. Furthermore, films can be coated be made, in particular of plastics of any kind, as well as paper, artificial leather, leather, Synthetic leather, foam and wood.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Die Erfindung betrifft die Verwendung eines schutzkolloidstabilisierten Polymers zur Beschichtung eines Trägermaterials.The invention relates to the use of a protective colloid-stabilized polymer for Coating of a carrier material.
Zur Verklebung von textilen Materialien kann beispielsweise ein solches Material mit einem Schmelzklebepulver beschichtet und dann mit einem zweiten, darauf gelegten Material verklebt werden. Eine mögliche Beschichtung ist die sogenannte Doppelpunktbeschichtung (double dot coating). Dabei wird auf das zu beschichtende Material zunächst ein Unterpunkt aufgedruckt. Dieses Bedrucken kann durch Rotationssiebdruck erfolgen. Bei dem Unterpunkt handelt es sich um eine Paste, die eine wäßrige Dipersion eines emulgatorstabilisierten Polymers, Verdicker und gegebenenfalls Druckhilfsmittel umfaßt. Auf den noch nassen Unterpunkt wird dann Schmelzklebepulver aufgestreut. Überschüssiges Pulver wird abgesaugt. Danach wird der Unterpunkt mit dem Schmelzklebepulver zunächst getrocknet und angesintert, oder das Schmelzklebepulver wird aufgeschmolzen.For the bonding of textile materials, for example, such a material with a Hot melt adhesive coated and then glued to a second, superimposed material become. One possible coating is the so-called double dot coating (double dot coating). In this case, a sub-item is first printed on the material to be coated. This printing can be done by rotary screen printing. The sub-item is a paste containing an aqueous dispersion of an emulsifier-stabilized polymer, thickener and optionally pressure assistants. On the still wet sub-point is then Hot melt glue spread. Excess powder is sucked off. After that, the Subpoint with the hot melt adhesive powder first dried and sintered, or Hot melt adhesive is melted.
Ein Beispiel einer Doppelpunktbeschichtung wird in der EP 0 547 261 B1 beschrieben. Dort wird ein beschichtetes Flächengebilde offenbart, das einen Beschichtungsträger (vorliegend auch als Trägermaterial bezeichnet), eine darauf aufgebrachte Grund- bzw. Basisschicht aus einer Kunststoffmasse (vorliegend auch als Unterpunkt bezeichnet) und eine darauf vorgesehene zweite Schicht (vorliegend auch als Schmelzkleber bezeichnet) umfaßt. Die Grundschicht ist aus einer vernetzbaren, wäßrigen Polymerdispersion, -emulsion und/oder - lösung hergestellt. Als Polymerdispersionen wurden selbstvernetzende Acrylpolymere, selbstvernetzende Polyvinylester oder selbstvernetzende Styrol-Acryl- oder Acryl-Vinylester-Copolymere verwendet. Die verwendeten Polymere haben vorzugsweise eine Filmbildungstemperatur von mindestens 5°C und sind in Dispersions- oder Emulsionsform meist sauer eingestellt. An example of a double-point coating is described in EP 0 547 261 B1. There there is disclosed a coated sheet comprising a coating carrier (present also referred to as a carrier material), a base or base layer applied thereon a plastic compound (also referred to herein as sub-item) and one on it provided second layer (also referred to herein as hot melt adhesive) comprises. The Base layer is composed of a crosslinkable, aqueous polymer dispersion, emulsion and / or solution produced. As polymer dispersions, self-crosslinking acrylic polymers, self-crosslinking polyvinyl esters or self-crosslinking styrene-acrylic or acrylic-vinyl ester copolymers used. The polymers used preferably have one Film formation temperature of at least 5 ° C and are usually in dispersion or emulsion form sour.
Nachteilig an dieser Doppelpunktbeschichtung sind die Haftwerte für die Verklebungen nach Wäsche und chemischer Reinigung. Das rheologische Verhalten und das Antrocknen der Paste auf der Schablone beim Rotationssiebdruck ergeben ein schlechtes Verarbeitungsverhalten.The disadvantage of this double-point coating is the adhesion values for the bonds Laundry and dry cleaning. The rheological behavior and the drying of the paste on the stencil in the rotary screen printing give a poor processing behavior.
Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, diese Nachteile auszuräumen.The present invention is therefore based on the object to overcome these disadvantages.
Erfindungsgemäß wird dies durch die Verwendung eines schutzkolloidstabilisierten Polymers, umfassend ein Schutzkolloid und ein Polymer, zur Beschichtung eines Trägermaterials gelöst.According to the invention, this is achieved by the use of a protective colloid-stabilized polymer, comprising a protective colloid and a polymer, dissolved for coating a support material.
Daß sich ein schutzkolloidstabilisiertes Polymer überhaupt zur Beschichtung eines Trägermaterials, z.B. textilen Materials, eignet, um es dann zu verkleben, war für den Fachmann vollkommen überraschend. Voraussetzung zum Verkleben von textilen Materialien ist, daß die Verklebung beim Waschen bzw. beim Reinigen nicht gelöst wird. Der Fachmann erwartet aber, daß schutzkolloidstabilisierte Polymere löslich sind und somit die daraus hergestellten Verklebungen mit Textilien beim Waschen aufgelöst werden. Überraschenderweise wurde dies aber nicht beobachtet. Es wurde vielmehr sogar gefunden, daß die unter Verwendung von schutzkolloidstabilisierten Polymeren erhältlichen Verklebungen sehr wasch- und reinigungsbeständig sind.That a protective colloid-stabilized polymer at all for coating a Support material, e.g. textile material, which was then suitable for bonding Professional completely surprising. Prerequisite for bonding textile materials is that the bond during washing or cleaning is not solved. The expert but expects that protective colloid-stabilized polymers are soluble and thus the resulting adhesions with textiles are dissolved during washing. Surprisingly, however, this was not observed. Rather, it was even found in that the bonds obtainable using protective colloid-stabilized polymers very resistant to washing and cleaning.
Bei den bisher nach dem Stand der Technik für Beschichtungen, insbesondere
Doppelpunktbeschichtungen, eingesetzten Polymeren handelt es sich u.a. um
emulgatorstabilisierte Polymere. Emulgatoren sind Verbindungen, die unter dem Begriff
"Tenside" subsummiert werden können. Auch Schutzkolloide sind grenzflächenaktive
Substanzen, allerdings weisen sie ganz charakteristische Unterschiede zu Tensiden auf. Eine
charakteristische Eigenschaft von Tensiden und ihren Lösungen ist die Mizellenbildung. Mit
zunehmender Tensidkonzentration steigt an der Grenzfläche die Zahl der Moleküle so lange,
bis es keinen Platz für weitere gibt. Dann ist der Zeitpunkt für die Bildung von Mizellen gegeben.
Man bezeichnet abgelöste Aggregate einer größeren Anzahl von Tensidmolekülen oder Ionen
als Mizellen. Sie sind dynamische Gebilde, die mit der sie umgebenden Lösung im
Gleichgewicht stehen. Die Bildung von Mizellen setzt in einem eng begrenzten, für jedes Tensid
charakteristischen Konzentrationsbereich ein und ist vom Molekülaufbau abhängig. Sie tritt bei
der Konzentration ein, bei der die Oberfläche vollständig bzw. weitgehend vollständig belegt ist
und daher die Oberflächenspannung unabhängig von der Erhöhung der Konzentration wird.
Durch die Messung der Oberflächenspannung in Abhängigkeit von der Konzentration läßt sich
in einfacher Weise die Konzentration ermitteln, bei der die Mizellenbildung beginnt. Sie wird die
kritische Mizellbildungskonzentration (CMC) genannt. Des weiteren wurde zur
Charakterisierung von Tensiden der Begriff "HLB-Wert" (hydrophilic-lipophilic balance)
eingeführt. Dabei werden die Tenside nach den hydrophilen und hydrophoben Gruppen unter
Berücksichtigung der Struktur charakterisiert. Die Bestimmung des HLB-Wertes beruht auf
empirischer Basis:
Sowohl die kritische Mizellbildungskonzentration als auch der HLB-Wert sind charakteristische Eigenschaften von Tensiden und ihren Lösungen. Beide Eigenschaften haben die Schutzkolloide nicht.Both the critical micelle formation concentration and the HLB value are characteristic Properties of surfactants and their solutions. Both properties have the Protective colloids not.
Schutzkolloidstabilisierte Polymere sind dem Fachmann bekannt. Sie sind kommerziell erhältlich oder können durch radikalisch initiierte Polymerisation untenstehender Monomere und ggf. Hilfsmonomere hergestellt werden. Die radikalisch initiierte Polymerisation der ethylenisch ungesättigten Monomeren kann durch Suspensions- oder Emulsionspolymerisation erfolgen. Bei der Suspensions- und Emulsionspolymerisation wird in Gegenwart von oberflächenaktiven Substanzen der Zusammensetzung von 100-51 % Schutzkolloiden und 0-49 % Emulgatoren polymerisiert. Geeignete Emulgatoren sind sowohl anionische, kationische als auch nichtionische Emulgatoren, beispielsweise anionische Tenside, wie Alkylsulfate mit einer Kettenlänge von 8 bis 18 C-Atomen, Alkyl- oder Alkylarylethersulfate mit 8 bis 18 C-Atomen im hydrophoben Rest und bis zu 60 Ethylen- oder Propylenoxideinheiten, Alkyl- oder Alkylarylsulfonate mit 8 bis 18 C-Atomen, Ester und Halbester der Sulfobernsteinsäure mit einwertigen Alkoholen oder Alkylphenolen, oder nichtionische Tenside wie Alkylpolyglykolether oder Alkylarylpolyglykolether mit bis zu 60 Ethylenoxid- bzw. Propylenoxid-Einheiten.Protective colloid-stabilized polymers are known to the person skilled in the art. They are commercial or can be obtained by free-radically initiated polymerization of monomers below and optionally Hilfsmonomere be prepared. The free-radical polymerization of ethylenic unsaturated monomers can be made by suspension or emulsion polymerization. In the suspension and emulsion polymerization, in the presence of surface-active Substances of composition of 100-51% protective colloids and 0-49% emulsifiers polymerized. Suitable emulsifiers are both anionic, cationic and nonionic emulsifiers, for example anionic surfactants, such as alkyl sulfates having a Chain length of 8 to 18 carbon atoms, alkyl or alkylaryl ether sulfates having 8 to 18 carbon atoms in hydrophobic group and up to 60 ethylene or propylene oxide units, alkyl or Alkylarylsulfonate with 8 to 18 C-atoms, esters and half esters of sulfosuccinic acid with monohydric alcohols or alkylphenols, or nonionic surfactants such as alkyl polyglycol ethers or alkylaryl polyglycol ethers having up to 60 ethylene oxide or propylene oxide units.
Besonderes bevorzugte Vertreter für Schutzkolloide sind modifizierte natürliche Polymere, wie O-Methyl-cellulose, O-(2-Hydroxy-ethyl)-cellulose, O-(2-Hydroxy-propyl)-cellulose, O-(2-Hydroxy-propyl)-O-methyl-cellulose, O-(2-Hydroxy-butyl)-O-methyl-cellulose, Carboxymethylcellulose (Na-Salz), Stärkeether, O-(2-Hydroxy-propyl)-stärke und Ligninsulfonsäure, synthetische Homo- und Copolymerisate, wie Poly(vinylalkohol) [teilverseiftes Poly(vinylacetat)], Poly(vinylalkohol-co-ethylen), Poly(methacrylsäure-Natrium-Salze), Poly[methacrylsäure-Natrium-Salz-co-(methacryl-säure-methylester)], Poly[acrylsäure-co-acrylsäure-(2-ethyl-hexylester)], Poly[methacrylsäure-(hydroxyl-alkylester)], Poly(styrol-co-maleinsäure-Natrium-Salz), Poly(styrol-4-sulfonsäure-Natrium-Salz-co-maleinsäure-halbester), Poly(ethylene-co-maleinsäure-partial-ester)Poly(oxiran), Poly(alkyl)-vinyl-ether), Poly(acrylsäure-Natrium-Salz), Poly-(alkyl-vinylether-co-maleinsäure-anhydrid), Poly(vinylacetat-co-maleinsäure-anhydrid), Poly(1-vinyl-2-pyrrolidon), Poly[(1-vinyl-2-pyrrolidon)-co-methacryl-säure-alkylester], Poly[(1-vinyl-2-pyrrolidon)-co-methacrylamid], Poly(vinyl-pyridin) und Poly(dially-dimethyl-ammoniumchlorid), Pfropf-Polymerisate, wie Poly(vinylchlorid-g-vinylalkohol), Poly(styrol-g-vinylalkohol), Poly-(styrol-g-acrylsäure), Poly[styrol-g-(1-vinyl-2-pyrrolidon)] und Poly[acrylsäure-tert.-butylester-g-(1-vinyl-2-pyrrolidon)], sowie Kondensationsprodukte, wie Harnstoff-Formaldehyd-Kondensate, Phenol-Formaldehyd-Kondensate und Alkydharze.Particularly preferred representatives of protective colloids are modified natural polymers, such as O-methylcellulose, O- (2-hydroxy-ethyl) -cellulose, O- (2-hydroxy-propyl) -cellulose, O- (2-hydroxy-propyl) -O-methyl-cellulose, O- (2-hydroxybutyl) -O-methyl-cellulose, carboxymethylcellulose (Na salt), starch ether, O- (2-hydroxypropyl) starch and lignosulfonic acid, synthetic homopolymers and copolymers, such as poly (vinyl alcohol) [partially saponified poly (vinyl acetate)], Poly (vinyl alcohol-co-ethylene), poly (methacrylic acid-sodium salts), poly [methacrylic acid-sodium-salt-co- (methacrylic acid-methyl ester)], Poly [acrylic acid-co-acrylic acid (2-ethyl-hexyl)], Poly [methacrylic acid (hydroxyl-alkyl ester)], poly (styrene-co-maleic acid-sodium salt), Poly (styrene-4-sulfonic acid-sodium-salt-co-maleic acid half ester), poly (ethylene-co-maleic acid-partial-ester) poly (oxirane), Poly (alkyl) vinyl ether), poly (acrylic acid sodium salt), poly (alkyl vinyl ether-co-maleic anhydride), Poly (vinyl acetate-co-maleic acid anhydride), poly (1-vinyl-2-pyrrolidone), Poly [(1-vinyl-2-pyrrolidone) -co-methacrylic acid alkyl ester], poly [(1-vinyl-2-pyrrolidone) -co-methacrylamide], Poly (vinyl pyridine) and poly (diallyl dimethyl ammonium chloride), Graft polymers, such as poly (vinyl chloride-g-vinyl alcohol), poly (styrene-g-vinyl alcohol), poly (styrene-g-acrylic acid), Poly [styrene-g- (1-vinyl-2-pyrrolidone)] and poly [acrylic acid tert-butyl ester g- (1-vinyl-2-pyrrolidone)], as well as condensation products, such as urea-formaldehyde condensates, Phenol-formaldehyde condensates and alkyd resins.
Die Polymere des schutzkolloidstabilisierten Polymers werden nachfolgend anhand der Monomeren näher erläutert. Unter Polymeren im Sinn der vorliegenden Erfindung sind sowohl Homo- als auch Copolymere zu verstehen. Bei den Monomeren kann es sich um ethylenisch ungesättigte Monomere handeln. Diese können ausgewählt sein unter Vinylester von unverzweigten oder verzweigten Alkylcarbonsäuren mit 1 bis 18 C-Atomen, Acrylsäureester oder Methacrylsäureester von verzweigten oder unverzweigten Alkoholen oder Diolen mit 1 bis 18 C-Atomen, C2-C20-Mono- oder Di-Carbonsäuren, deren Amide, N-Methylolamide oder Nitrile, C2-C20-Sulfonsäuren, 3-20-gliedrige heterocyclische Verbindungen mit Sauerstoff, Schwefel, Selen, Tellur, Stickstoff, Phosphor, Bor oder Aluminium als Heteroatom, Diene mit mindestens 4 C-Atomen, Olefine mit mindestens 2 C-Atomen, Vinylaromaten insbesondere mit Benzol oder Naphthalein als Aromat, und C2-C20 Vinylhalogeniden.The polymers of the protective colloid-stabilized polymer are described below with reference to Monomers explained in more detail. Among polymers in the sense of the present invention are both Homo- and copolymers to understand. The monomers may be ethylenic unsaturated monomers act. These can be selected from vinyl esters of unbranched or branched alkylcarboxylic acids having 1 to 18 carbon atoms, acrylic acid esters or methacrylic acid esters of branched or unbranched alcohols or diols with 1 to 18 C atoms, C2-C20 mono- or di-carboxylic acids, their amides, N-methylolamides or Nitriles, C2-C20 sulfonic acids, 3-20-membered heterocyclic compounds with oxygen, Sulfur, selenium, tellurium, nitrogen, phosphorus, boron or aluminum as heteroatom, dienes with at least 4 C atoms, olefins having at least 2 C atoms, vinyl aromatics in particular with Benzene or naphthalene as aromatic, and C2-C20 vinyl halides.
Bevorzugte Vinylester sind solche mit 1 bis 12-C-Atomen, insbesondere Vinylacetat, Vinylpropionat, Vinylbutyrat, Vinyl-2-ethylhexanoat, Vinyllaurat, 1-Methylvinylacetat, Vinylpivalat und Vinylester von α-verzweigten Monocarbonsäuren mit 9 bis 13 C-Atomen.Preferred vinyl esters are those having 1 to 12 C atoms, in particular vinyl acetate, Vinyl propionate, vinyl butyrate, vinyl 2-ethylhexanoate, vinyl laurate, 1-methyl vinyl acetate, vinyl pivalate and vinyl esters of α-branched monocarboxylic acids having 9 to 13 C atoms.
In einer weiteren bevorzugten Ausführungsform ist der Acrylsäure- oder Methacrylsäureester ein Ester von unverzweigten oder verzweigten Alkoholen mit 1 bis 15 C-Atomen, insbesondere Methylacrylat, Methylmethacrylat, Ethylacrylat, Ethylmethacrylat, Propylacrylat, Propylmethacrylat, n-Butylacrylat, n-Butylmethacrylat, t-Butylacrylat, t-Butylmethacrylat und 2-Ethylhexylacrylat, ganz besonders Methylacrylat, Methylmethacrylat, n-Butylacrylat, t-Butylacrylat, t-Butylacrylat und 2-Ethylhexylacrylat.In a further preferred embodiment, the acrylic or methacrylic acid ester an ester of unbranched or branched alcohols having 1 to 15 carbon atoms, in particular Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, t-butyl acrylate, t-butyl methacrylate and 2-ethylhexyl acrylate, especially methyl acrylate, methyl methacrylate, n-butyl acrylate, t-butyl acrylate, t-butyl acrylate and 2-ethylhexyl acrylate.
Bevorzugte Mono- und Di-Carbonsäuren, deren Amide, N-Methylolamide und Nitrile sind ausgewählt unter Acrylsäure, Methacrylsäure, Fumarsäure, Maleinsäure, Acrylamid, N-Methylolacrylamid, N-Methylolmethacrylamid und Acrylnitril.Preferred mono- and di-carboxylic acids, their amides, N-methylol amides and nitriles selected from acrylic acid, methacrylic acid, fumaric acid, maleic acid, acrylamide, N-methylolacrylamide, N-methylolmethacrylamide and acrylonitrile.
Die Sulfonsäure ist günstigerweise unter Vinylsulfonsäure und 2-Acrylamido-2-methylpropansulfonsäure ausgewählt. Die bevorzugten heterocyclischen Verbindungen sind Vinylpyrrolidon und Vinylpyridin.The sulfonic acid is conveniently vinylsulfonic acid and 2-acrylamido-2-methylpropanesulfonic acid selected. The preferred heterocyclic compounds are Vinyl pyrrolidone and vinyl pyridine.
Vorzugsweise ist der Vinylaromat Styrol, Methylstyrol oder Vinyltoluol. Preferably, the vinyl aromatic is styrene, methyl styrene or vinyl toluene.
Vorzugsweise ist das Vinylhalogenid Vinylchlorid.Preferably, the vinyl halide is vinyl chloride.
In einer bevorzugten Ausführungsform der erfindungsgemäßen Verwendung wird das Olefin ausgewählt unter Ethylen und Propylen.In a preferred embodiment of the use according to the invention, the olefin selected from ethylene and propylene.
Bevorzugte Diene werden unter 1,3-Butadien und Isopren ausgewählt.Preferred dienes are selected from 1,3-butadiene and isoprene.
Bei der erfindungsgemäßen Verwendung können mehrere, voneinander verschiedene schutzkolloidstabilisierte Polymere eingesetzt werden.In the use according to the invention, several, different from each other protective colloid-stabilized polymers are used.
Gegebenenfalls können noch 0,1 bis 50 Gew.-%, bezogen auf das Gesamtgewicht des Monomergemisches, Hilfsmonomere copolymerisiert werden. Bevorzugt werden 0,5 bis 15 Gew.-% Hilfsmonomere eingesetzt. Beispiele für Hilfsmonomere sind ethylenisch ungesättigte C2-C20-Mono- und Dicarbonsäuren, vorzugsweise Acrylsäure, Methacrylsäure, Fumarsäure und Maleinsäure; ethylenisch ungesättigte C2-C20-Carbonsäureamide und -nitrile, vorzugsweise Acrylamid und Acrylnitril; Mono- und Diester der Fumarsäure und Maleinsäure wie die Diethyl- und Diisopropylester, sowie Maleinsäureanhydrid, ethylenisch ungesättigte C2-C20-Sulfonsäuren bzw. deren Salze (Alkali, Erdalkali und Ammonium-Salze), vorzugsweise Vinylsulfonsäure, 2-Acrylamido-2-methyl-propansulfonsäure. Weitere Beispiele sind vorvernetzende C2-C20-Comonomere, wie mehrfach ethylenisch ungesättigte Comonomere, beispielsweise Divinyladipat, Diallylmaleat, Diallylphthalat, Allylmethacrylat oder Triallylcyanurat, oder nachvernetzende Comonomere, beispielsweise Acrlyamidoglykolsäure (AGA), Methylacrylamidoglykolsäuremethylester (MAGME), N-Methylolacrylamid (NMA), N-Methylolmethacrylamid, N-Methylolallylcarbamat, C2-C20-Alkylether, wie der Isobutoxyether oder Ester des N-Mehtylolacrylamids, des N-Methylolmethacrlyamids und des N-Methylolallylcarbamats. Geeignet sind auch epoxidfunktionelle C2-C20-Comonomere wie Glycidylmethacrylat und Glycidylacrylat. Weitere Beispiele sind siliciumfunktionelle C2-C20-Comonomere wie Acryloxypropyltri(alkoxy)- und Methacryloxypropyltri(alkoxy)-Silane, Vinyltrialkoxysilane und Vinylmethyldialkoxysilane, wobei als Alkoxygruppen beispielsweise Ethoxy- und Ethoxypropylenglykolether-Reste enthalten sein können. Genannt seien auch C2-C20-Monomere mit Hydroxy- oder CO-Gruppen, beispielsweise Methacrylsäure- und Acrylsäurehydroxyalkylester, wie Hydroxyethyl-, Hydroxypropyl- oder Hydroxybutylacrylat oder -methacrylat sowie Verbindungen wie Diacetonacrylamid und Acetylacetoxyethylacrylat oder -methacrylat. Optionally, from 0.1 to 50 wt .-%, based on the total weight of Monomeric, Hilfsmonomere be copolymerized. Preference is given to 0.5 to 15 % By weight of auxiliary monomers used. Examples of auxiliary monomers are ethylenically unsaturated C2-C20 mono- and dicarboxylic acids, preferably acrylic acid, methacrylic acid, fumaric acid and maleic acid; ethylenically unsaturated C 2 -C 20 -carboxylic acid amides and nitriles, preferably acrylamide and acrylonitrile; Mono- and diesters of fumaric acid and maleic acid such as the diethyl and diisopropyl esters, as well as maleic anhydride, ethylenically unsaturated C 2 -C 20 -sulfonic acids or their salts (alkali, alkaline earth and ammonium salts), preferably Vinylsulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid. Other examples are precrosslinking C2-C20 comonomers, such as polyethylenically unsaturated comonomers, For example, divinyl adipate, diallyl maleate, diallyl phthalate, allyl methacrylate or Triallyl cyanurate, or post-crosslinking comonomers, for example Acrlyamidoglykolsäure (AGA), Methylacrylamidoglycolic acid methyl ester (MAGME), N-methylolacrylamide (NMA), N-methylolmethacrylamide, N-methylolallyl carbamate, C2-C20 alkyl ethers, such as the isobutoxy ether or esters of N-methylolacrylamide, N-methylolmethacrlyamide and N-methylolallylcarbamate. Also suitable are epoxide-functional C2-C20 comonomers such as Glycidyl methacrylate and glycidyl acrylate. Further examples are silicon-functional C2-C20 comonomers such as acryloxypropyltri (alkoxy) and methacryloxypropyltri (alkoxy) silanes, Vinyltrialkoxysilane and Vinylmethyldialkoxysilane, wherein as alkoxy groups, for example Ethoxy and Ethoxypropylenglykolether residues may be included. Also mentioned are C2-C20 monomers with hydroxy or CO groups, for example methacrylic acid and Acrylic acid hydroxyalkyl esters, such as hydroxyethyl, hydroxypropyl or hydroxybutyl acrylate or methacrylate and compounds such as diacetoneacrylamide and acetylacetoxyethyl acrylate or methacrylate.
Durch die Copolymerisation der vorstehend beschriebenen Monomeren mit den Hilfsmonomeren können die Eigenschaften der Beschichtungen, wie Haftung, Vernetzung und Stabilisierung, in günstiger Weise beeinflußt werden.By the copolymerization of the monomers described above with the Auxiliary monomers can control the properties of the coatings, such as adhesion, cross-linking and Stabilization, be favorably influenced.
Besonders bevorzugt werden die Polymere aus Monmeren oder Gemischen hergestellt, welche ein oder mehrere Monomere aus der Gruppe Vinylacetat, Vinylester von α-verzweigten Monocarbonsäuren mit 9 bis 13 C-Atomen, Vinylchlorid, Ethylen, Methylacrylat, Methylmethacrylat, Ethylacrylat, Ethylmethacrylat, Propylacrylat, Propylmethacrylat, n-Butylacrylat, n-Butylmethacrylat, 2-Ethylhexylacrylat oder Styrol enthalten. Am meisten bevorzugt werden Gemische von Vinylacetat mit Ethylen; von Vinylacetat, Ethylen und einem Vinylester von α-verzweigten Monocarbonsäuren mit 9 bis 13 C-Atomen; von n-Butylacrylat, 2-Ethylhexylacrylat und/oder Methylmethacrylat; von Styrol mit einem oder mehreren Monomeren aus der Gruppe Methylacrylat, Ethylacrylat, Propylacrylat, n-Butylacrylat, 2-Ethylhexylacrylat; von Vinylacetat mit einem oder mehreren Monomeren aus der Gruppe Methylacrylat, Ethylacrylat, Propylacrylat, n-Butylacrylat, 2-Ethylhexylacrylat und gegebenenfalls Ethylen; wobei die genannten Gemisch gegebenenfalls noch ein oder mehrere der obengenannten Hilfsmonomere enthalten können. Diese Gemische haben sich als besonders günstig erwiesen, da sie bei niedrigen Kosten hervorragende Eigenschaften in Beschichtungen zeigen.More preferably, the polymers are prepared from monomers or mixtures which one or more monomers from the group vinyl acetate, vinyl esters of α-branched Monocarboxylic acids having 9 to 13 C atoms, vinyl chloride, ethylene, methyl acrylate, Methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, 2-ethylhexyl acrylate or styrene. Most preferred are mixtures of vinyl acetate with ethylene; of vinyl acetate, ethylene and a Vinyl esters of α-branched monocarboxylic acids having 9 to 13 carbon atoms; of n-butyl acrylate, 2-ethylhexyl acrylate and / or methyl methacrylate; of styrene with one or more monomers from the group of methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate; of vinyl acetate with one or more monomers from the group of methyl acrylate, Ethyl acrylate, propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate and optionally ethylene; wherein said mixtures optionally still one or more of the above May contain auxiliary monomers. These mixtures have proven to be particularly favorable because they show excellent properties in coatings at low cost.
Die Monomerauswahl bzw. die Auswahl der Gewichtsanteile der Comonomere kann so erfolgen, daß im allgemeinen eine Glasübergangstemperatur Tg von -50°C bis +120°C, vorzugsweise -30°C bis +95°C resultiert. Die Glasübergangstemperatur Tg der Polymerise kann in bekannter Weise mittels Differential Scanning Calorimetry (DSC) ermittelt werden. Die Tg kann auch mittels der Fox-Gleichung näherungsweise vorausberechnet werden. Nach Fox T. G., Bull. Am. Physics Soc. 1, 3, S. 123 (1956) gilt: 1/Tg = x1/Tg1 + x2/Tg2 + ... + xn/Tgn, wobei xn für den Massebruch (Gew.-%/100) des Monomeren n steht, und Tgn die Glasübergangstemperatur in Kelvin des Homopolymeren des Monomeren n ist. Tg-Werte für Homopolymerisate sind in Polymer Handbook 2nd Auflage, J. Wiley & Sons, New York (1975) aufgeführt.The monomer selection or the selection of the proportions by weight of the comonomers can be so be carried out that in general a glass transition temperature Tg of -50 ° C to + 120 ° C, preferably -30 ° C to + 95 ° C results. The glass transition temperature Tg of the polymer can be determined in a known manner by means of differential scanning calorimetry (DSC). The Tg can also be approximated by the Fox equation. After Fox T.G., Bull. Am. Physics Soc. 1, 3, p. 123 (1956): 1 / Tg = x1 / Tg1 + x2 / Tg2 + ... + xn / Tgn, where xn represents the mass fraction (wt .-% / 100) of the monomer n, and Tgn the Glass transition temperature in Kelvin of the homopolymer of the monomer n. Tg values for Homopolymers are described in Polymer Handbook 2nd Edition, J. Wiley & Sons, New York (1975) listed.
Die Polymerisation vorstehender Monomere und ggf. Hilfsmonomere zum Polymer kann radikalisch intiiert werden. Die radikalisch initiierte Polymerisation der ethylenisch ungesättigten Monomeren kann durch Suspensionspolymerisation und Emulsionspolymerisation erfolgen.The polymerization of the above monomers and optionally auxiliary monomers to the polymer can be radically intiiert. The radically initiated polymerization of the ethylenically unsaturated Monomers can be made by suspension polymerization and emulsion polymerization.
Die Polymerisationstemperatur kann 40°C bis 100°C, vorzugsweise 60°C bis 90°C, betragen. Bei der Copolymerisation von gasförmigen Comonomeren, wie Ethylen, 1,3-Butadien oder Vinylchlorid, kann auch unter Druck, im allgemeinen zwischen 5 bar und 100 bar, gearbeitet werden. Die Initiierung der Polymerisation kann mit den gebräuchlichen wasserlöslichen bzw. monomerlöslichen Initiatoren oder Redox-Initiator-Kombinationen erfolgen. Beispiele für wasserlösliche Initiatoren sind die Natrium-, Kalium- und Ammoniumsalze der Peroxodischwefelsäure, Wasserstoffperoxid, t-Butylperoxid, Kaliumperoxodiphosphat, t-Butylperoxopivalat, Cumolhydroperoxid, Isopropylbenzolmonohydroperoxid, Azobisisobutyronitril. Beispiele für monomerlösliche Initiatoren sind Dicetylperoxydicarbonat, Dicyclohexylperoxydicarbonat, Dibenzoylperoxid, tert.-Butyl-peroxyneodecanoat, tert.-Butylperoxy-2-ethylhexanoat und tert.-Butylperoxypivalat. Die genannten Initiatoren werden im allgemeinen in einer Menge von 0,01 bis 10,0 Gew.-%, bevorzugt 0,1 bis 0,5 Gew.-%, jeweils bezogen auf das Gesamtgewicht der Monomere, eingesetzt, Als Redox-Initiatoren können Kombinationen aus den genannten Initiatoren mit Reduktionsmitteln verwendet werden. Geeignete Reduktionsmittel sind die Sulfite und Bisulfite der Alkalimetalle und von Ammonium, beispielsweise Natriumsulfit, die Derivate der Sulfoxylsäure, wie Zink- oder Alkaliformaldehydsulfoxylate, beispielsweise Natriumhydroxymethansulfinat, und Ascorbinsäure. Die Reduktionsmittelmenge beträgt im allgemeinen 0,01 bis 10,0 Gew.-%, bevorzugt 0,1 bis 0,5 Gew.-%, jeweils bezogen auf das Gesamtgewicht der Monomeren.The polymerization temperature may be 40 ° C to 100 ° C, preferably 60 ° C to 90 ° C. In the copolymerization of gaseous comonomers, such as ethylene, 1,3-butadiene or Vinyl chloride, can also under pressure, generally between 5 bar and 100 bar, worked become. The initiation of the polymerization can be carried out with the customary water-soluble or monomer-soluble initiators or redox initiator combinations take place. examples for water-soluble initiators are the sodium, potassium and ammonium salts of Peroxodisulfuric acid, hydrogen peroxide, t-butyl peroxide, potassium peroxodiphosphate, t-butyl peroxopivalate, Cumene hydroperoxide, isopropylbenzene monohydroperoxide, azobisisobutyronitrile. Examples of monomer-soluble initiators are dicetyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, Dibenzoyl peroxide, tert-butyl peroxyneodecanoate, tert-butyl peroxy-2-ethylhexanoate and tert-butyl peroxypivalate. The mentioned initiators are in the In general, in an amount of 0.01 to 10.0 wt .-%, preferably 0.1 to 0.5 wt .-%, respectively based on the total weight of the monomers, used as redox initiators Combinations of the mentioned initiators can be used with reducing agents. Suitable reducing agents are the sulfites and bisulfites of the alkali metals and of ammonium, For example, sodium sulfite, the derivatives of sulfoxylic acid, such as zinc or Alkali metal formaldehyde sulfoxylates, for example sodium hydroxymethanesulfinate, and ascorbic acid. The amount of reducing agent is generally from 0.01 to 10.0 wt .-%, preferably 0.1 to 0.5 wt .-%, each based on the total weight of the monomers.
Die Monomere können insgesamt vorgelegt werden, insgesamt zudosiert werden oder in Anteilen vorgelegt werden und der Rest nach der Initiierung der Polymerisation zudosiert werden. Die Dosierungen können separat (räumlich und zeitlich) durchgeführt werden oder die zu dosierenden Komponenten können alle oder teilweise voremulgiert zugegeben werden.The monomers can be submitted in total, be metered in total or in Shares are submitted and added the remainder after the initiation of the polymerization become. The dosages can be carried out separately (spatially and temporally) or the All or part of the components to be dosed can be added pre-emulsified.
Bei den als bevorzugt genannten Verfahren der Suspension- und Emulsionspolymerisation kann in Gegenwart der vorgenannten Schutzkolloiden polymerisiert werden, um die schutzkolloidstabilisierten Polymere herzustellen.In the preferred methods of suspension and emulsion polymerization can be polymerized in the presence of the aforementioned protective colloids to the produce protective colloid-stabilized polymers.
Die vorliegende Erfindung, insbesondere in den vorstehend geschilderten bevorzugten Ausführungsformen, weist eine Vielzahl von Vorteilen auf: Zunächst ist gefunden worden, daß im Vergleich zu anderen Beschichtungsverfahren nach dem Stand der Technik sehr geringe Beschichtungsmengen für eine ausreichend gute Verklebung genügen. Dadurch ist eine deutliche Reduktion der Kosten zu erreichen, und die verklebten textilen Materialien weisen einen angenehmen weichen Griff auf. Mit den erfindungsgemäß verwendeten schutzkolloidstabilisierten Polymeren ist eine sehr hohe Haftfestigkeit der verklebten Textilien festzustellen. Die Anbindung des Streupulvers an den Unterpunkt ist sehr gut. Die Verklebungen, die mit der Beschichtung, die ein schutzkolloidstabilisiertes Polymer verwendet, erhalten wurden, sind sehr gut wasch- und reinigungsbeständig. Darüber hinaus dringt der mit dem schutzkolloidstabilisierten Polymer erhaltene Unterpunkt bei der Doppelpunktbeschichtung nicht in das textile Substrat ein, d.h. es wird eine sehr wirkungsvolle Rückschlagsperre erreicht. Des weiteren weisen Pasten, die das schutzkolloidstabilisierte Polymer enthalten und zur Herstellung des Unterpunkts bei Doppelpunktbeschichtungen verwendet werden, eine sehr gute Rheologie auf und trocknen an der Schablone nicht an.The present invention, in particular in the above-described preferred Embodiments has a number of advantages: First, it has been found that very low compared to other prior art coating methods Coating quantities are sufficient for sufficiently good adhesion. This is one To achieve a significant reduction in costs, and exhibit the bonded textile materials a pleasant soft grip on. With the invention used Protective colloid-stabilized polymers is a very high adhesion of the bonded textiles determine. The connection of the scattering powder to the sub-point is very good. The Adhesions associated with the coating using a protective colloid stabilized polymer are very good wash and cleaning resistant. In addition, the penetrates with the sub-dot obtained in the protective colloid-stabilized polymer in the case of the double-point coating not in the textile substrate, i. A very effective kickback is achieved. Furthermore, pastes containing the protective colloid-stabilized polymer and to Making the subpoint used in colon coatings is a very good one Rheology and do not dry on the template.
Zur Herstellung von Beschichtungen auf Trägermaterialien können die schutzkolloidstabilisierten Polymere in Form einer Paste verwendet werden. Zur Herstellung einer solchen Paste wird von einer Dispersion des schutzkolloidstabilisierten Polymers in Wasser ausgegangen. Die Menge des Wassers kann dabei beispielsweise etwa 70 Gew.-%, bezogen auf die Dispersion, und die des schutzkolloidstabilisierten Polymers etwa 30 Gew.-%, ebenfalls bezogen auf die Dispersion, betragen. Diesen Polymerdispersionen kann dann Verdicker und gegebenenfalls Druckhilfsmittel zugegeben werden, wodurch dann Pasten zur Beschichtung erhalten werden.For the production of coatings on support materials, the protective colloid-stabilized Polymers are used in the form of a paste. For the production of such Paste is made from a dispersion of the protective colloid-stabilized polymer in water went out. The amount of water, for example, about 70 wt .-%, based to the dispersion, and that of the protective colloid stabilized polymer about 30 wt .-%, also based on the dispersion amount. These polymer dispersions can then thickener and optionally printing assistant may be added, which then paste for coating to be obtained.
Diese Pasten können beispielsweise im Rotationssiebdruck auf das zu beschichtende Trägermaterial aufgebracht werden. Auf diese Weise kann ein Unterpunkt für die Doppelpunktbeschichtung hergestellt werden. Auf den Unterpunkt kann dann Schmelzkleberpulver aufgestreut werden. Überschüssiges Pulver kann nachfolgend abgesaugt werden. Der Unterpunkt kann dann getrocknet und angesintert, oder das Streupulver aufgeschmolzen werden.These pastes can, for example in rotary screen printing on the coated Carrier material can be applied. In this way, a sub item for the Colon coating are produced. At the subpoint can then Melted hot melt powder are sprinkled. Excess powder can subsequently be sucked off become. The sub-item can then be dried and sintered, or the scattering powder be melted.
Vorstehend erwähnte Polymerdispersionen haben den Vorteil, daß sie durch Zugabe von Verbindungen mit 2 oder mehr Epoxid-, Organe-, Halogen-, Hydroxy-, Aziridin-, Carbodiimid-, Oxazolin-, Alkohol-, Amin-, Aminosilan-, Aminoformaldehyd-, Isocyanat- oder N-2-Hydroxyalkylamid-Resten vernetzt werden können. Neben der intramolekularen Vernetzung des Polymeren tritt auch eine Vernetzung des Polymeren mit der Schutzkolloidhülle und mit den zugegebenen Additiven ein. Dadurch werden besonders hohe Haftfestigkeiten erreicht.The above-mentioned polymer dispersions have the advantage that they can be obtained by adding Compounds containing 2 or more epoxide, organo, halogen, hydroxy, aziridine, carbodiimide, Oxazoline, alcohol, amine, aminosilane, aminoformaldehyde, isocyanate or N-2-hydroxyalkylamide residues can be networked. In addition to the intramolecular crosslinking of the Polymer also occurs a crosslinking of the polymer with the Schutzkolloidhülle and with the added additives. As a result, particularly high adhesive strengths are achieved.
In der Endformulierung der Dispersion bzw. der Paste können noch Vernetzer vorlegen, beispielsweise Verbindungen mit zwei oder mehr Epoxy-, Organe-, Halogen-, Hydroxy-, Aziridin-, Carbodiimid-, Oxazolin-, Alkohol-, Amin-, Aminosilan-, Aminoformaldehyd-, Isocyanat oder N-2-Hydroxyalkylamid-Resten.In the final formulation of the dispersion or the paste can still submit crosslinkers, for example, compounds having two or more epoxy, organo, halogen, hydroxy, Aziridine, carbodiimide, oxazoline, alcohol, amine, aminosilane, aminoformaldehyde, isocyanate or N-2-hydroxyalkylamide residues.
Bei den Trägermaterialien, die beschichtet werden können, kann es sich um Materialien jeglicher Art handeln. Es kann flexibel, wenig flexibel oder gar nicht flexibel sein. Beispiele sind textile Materialien jeglicher Art, wie Gewebe, Gewirke, Webwirkware, Raschelwaren (natürliche und synthetische Fasern), Flies aus jeglichem Material. Des weiteren können Folien beschichtet werden, insbesondere aus Kunststoffen jeglicher Art, sowie Papier, Kunstleder, Leder, Kunstleder, Schaumstoff und Holz. The substrates that can be coated may be materials to act of any kind. It can be flexible, not very flexible or not flexible at all. examples are textile materials of any kind, such as woven, knitted, woven knitted fabric, Raschelwaren (natural and synthetic fibers), fleece of any material. Furthermore, films can be coated be made, in particular of plastics of any kind, as well as paper, artificial leather, leather, Synthetic leather, foam and wood.
Die Erfindung wird nachfolgend anhand eines Beispiels erläutert, ohne sie darauf einzuschränken.The invention will be explained below by way of example, without her mind limit.
Vergleichsdispersion 0 Selbstvernetzende Acrylat-Dispersion mit einer Glasübergangstemperatur
Tg (DSC) = +2°C, die emulgatorstabilisiert ist.
Tebelink® MFA = Partiell verethertes, modifiziertes Melamin-Formaldehyd-Kondensat, formaldehydarm (0,3%), Dr. Th. Böhme KG Chem. Fabrik GmbH & Co. Comparative Dispersion 0 Self-crosslinking acrylate dispersion having a glass transition temperature T g (DSC) = + 2 ° C., which is emulsifier-stabilized.
Tebelink® MFA = partially etherified, modified melamine-formaldehyde condensate, low in formaldehyde (0.3%), Dr. Ing. Th. Boehme KG Chem. Fabrik GmbH & Co.
Wasser vorlegen, Acrylatverdicker einrühren, bis eine homogene, viskose Paste entstanden ist
und anschließend unter Rühren die Polymerdispersion zugeben. Bei Einsatz von Vernetzern
werden diese der Paste zugesetzt und homogen eingerührt.
Zur Verbesserung der Verdruckbarkeit können Druckhilfmittel wie z.B. Alkohole und
hochmolekulares Polyethylenoxid zugegeben werden. Pastenviskosität je nach
Beschichtungsmaschine unterschiedlich. Typische Werte liegen zwischen 7.000-15.000 m Pas,
Haake Rotovisko VT02, Spindel 2.Submit water, stir in acrylate thickener until a homogeneous, viscous paste has formed and then add the polymer dispersion with stirring. When crosslinkers are used, they are added to the paste and stirred in homogeneously.
To improve the printability printing auxiliary agents such as alcohols and high molecular weight polyethylene oxide can be added. Paste viscosity varies depending on the coating machine. Typical values are between 7,000-15,000 m Pas, Haake Rotovisko VT02, spindle 2.
Laminierpresse Fa. Mayer
[g/m2]
[g/m2]
[g/m2]
(1 x)
(1 x)
[g / m 2 ]
[g / m 2 ]
[g / m 2 ]
(1 x)
(1 x)
Claims (18)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES03028481T ES2259747T3 (en) | 2003-12-12 | 2003-12-12 | USE OF POLYMERS STABILIZED WITH PROTECTIVE COLOIDS FOR COATING BY DOUBLE POINTS. |
EP03028481A EP1541751B1 (en) | 2003-12-12 | 2003-12-12 | Use of protective colloid-stabilized polymers as double-point coatings |
AT03028481T ATE321909T1 (en) | 2003-12-12 | 2003-12-12 | USE OF PROTECTIVE COLLOID-STABILIZED POLYMERS FOR DOUBLE POINT COATINGS |
DE50302798T DE50302798D1 (en) | 2003-12-12 | 2003-12-12 | Use of protective colloid-stabilized polymers for double-point coatings |
US10/582,072 US20070128362A1 (en) | 2003-12-12 | 2004-12-01 | Use of protective colloids-stabilized polymers for double dot coatings |
KR1020067011386A KR20060121165A (en) | 2003-12-12 | 2004-12-01 | Use of protective colloid-stabilized polymers for double dot coatings |
PCT/EP2004/013642 WO2005059238A1 (en) | 2003-12-12 | 2004-12-01 | Use of protective colloid-stabilized polymers for double-point coatings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03028481A EP1541751B1 (en) | 2003-12-12 | 2003-12-12 | Use of protective colloid-stabilized polymers as double-point coatings |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1541751A1 true EP1541751A1 (en) | 2005-06-15 |
EP1541751B1 EP1541751B1 (en) | 2006-03-29 |
Family
ID=34486184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03028481A Expired - Lifetime EP1541751B1 (en) | 2003-12-12 | 2003-12-12 | Use of protective colloid-stabilized polymers as double-point coatings |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070128362A1 (en) |
EP (1) | EP1541751B1 (en) |
KR (1) | KR20060121165A (en) |
AT (1) | ATE321909T1 (en) |
DE (1) | DE50302798D1 (en) |
ES (1) | ES2259747T3 (en) |
WO (1) | WO2005059238A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009052861A1 (en) | 2007-10-25 | 2009-04-30 | Kufner Textil Gmbh | Heat-sealable sheet-like textile structure, production of the same and use |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009001818A1 (en) * | 2009-03-24 | 2010-09-30 | Wacker Chemie Ag | Use of protective colloid-stabilized polymers as low-profile additives (LPA) |
DE102018214839B4 (en) * | 2018-08-31 | 2021-05-12 | Kufner Holding Gmbh | Heat-sealable, textile fabric with a sustainable adhesive coating and its use |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1197570A (en) * | 1966-11-21 | 1970-07-08 | Courtaulds Ltd | Adhesive Compositions |
US3632535A (en) * | 1967-09-20 | 1972-01-04 | Cpc International Inc | Emulsion polymerization method and resultant aqueous latex |
DE2407505A1 (en) * | 1974-02-16 | 1975-10-09 | Plate Bonn Gmbh | Stable aq. powdered copolyamide etc. dispersions - esp. useful as fabric bonding agents |
DE3510109A1 (en) * | 1985-03-20 | 1986-09-25 | Dr. Th.Böhme KG Chem. Fabrik GmbH & Co, 8192 Geretsried | Suspension medium for plastic powders, and dispersions prepared therewith |
EP0373231A1 (en) * | 1988-12-12 | 1990-06-20 | KUFNER TEXTILWERKE GmbH | Method of screen coating plastic sheets with hot melt adhesives, and use of the coated sheets |
JPH04178476A (en) * | 1990-11-13 | 1992-06-25 | Cemedine Co Ltd | Coating agent for preventing cargo shifting of paper container and anti-slip corrugated board case coated with the agent |
EP0547261A1 (en) * | 1991-12-17 | 1993-06-23 | Kufner Textilwerke GmbH | Coated flat structure |
EP0621289A1 (en) * | 1993-04-22 | 1994-10-26 | Wacker-Chemie GmbH | Use of aqueous dispersions of vinyl ester copolymers as a glue |
EP0671420A2 (en) * | 1994-03-09 | 1995-09-13 | Hüls Aktiengesellschaft | Protective colloid-stabilised polyacrylate dispersion |
EP0965598A1 (en) * | 1998-06-17 | 1999-12-22 | Hercules Incorporated | New protective colloids in latices with improved film formation at low temperatures |
-
2003
- 2003-12-12 ES ES03028481T patent/ES2259747T3/en not_active Expired - Lifetime
- 2003-12-12 DE DE50302798T patent/DE50302798D1/en not_active Expired - Fee Related
- 2003-12-12 AT AT03028481T patent/ATE321909T1/en not_active IP Right Cessation
- 2003-12-12 EP EP03028481A patent/EP1541751B1/en not_active Expired - Lifetime
-
2004
- 2004-12-01 WO PCT/EP2004/013642 patent/WO2005059238A1/en active Application Filing
- 2004-12-01 US US10/582,072 patent/US20070128362A1/en not_active Abandoned
- 2004-12-01 KR KR1020067011386A patent/KR20060121165A/en not_active Application Discontinuation
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GB1197570A (en) * | 1966-11-21 | 1970-07-08 | Courtaulds Ltd | Adhesive Compositions |
US3632535A (en) * | 1967-09-20 | 1972-01-04 | Cpc International Inc | Emulsion polymerization method and resultant aqueous latex |
DE2407505A1 (en) * | 1974-02-16 | 1975-10-09 | Plate Bonn Gmbh | Stable aq. powdered copolyamide etc. dispersions - esp. useful as fabric bonding agents |
DE3510109A1 (en) * | 1985-03-20 | 1986-09-25 | Dr. Th.Böhme KG Chem. Fabrik GmbH & Co, 8192 Geretsried | Suspension medium for plastic powders, and dispersions prepared therewith |
EP0373231A1 (en) * | 1988-12-12 | 1990-06-20 | KUFNER TEXTILWERKE GmbH | Method of screen coating plastic sheets with hot melt adhesives, and use of the coated sheets |
JPH04178476A (en) * | 1990-11-13 | 1992-06-25 | Cemedine Co Ltd | Coating agent for preventing cargo shifting of paper container and anti-slip corrugated board case coated with the agent |
EP0547261A1 (en) * | 1991-12-17 | 1993-06-23 | Kufner Textilwerke GmbH | Coated flat structure |
EP0621289A1 (en) * | 1993-04-22 | 1994-10-26 | Wacker-Chemie GmbH | Use of aqueous dispersions of vinyl ester copolymers as a glue |
EP0671420A2 (en) * | 1994-03-09 | 1995-09-13 | Hüls Aktiengesellschaft | Protective colloid-stabilised polyacrylate dispersion |
EP0965598A1 (en) * | 1998-06-17 | 1999-12-22 | Hercules Incorporated | New protective colloids in latices with improved film formation at low temperatures |
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Title |
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DATABASE WPI Section Ch Week 199232, Derwent World Patents Index; Class A14, AN 1992-263113, XP002282098 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009052861A1 (en) | 2007-10-25 | 2009-04-30 | Kufner Textil Gmbh | Heat-sealable sheet-like textile structure, production of the same and use |
Also Published As
Publication number | Publication date |
---|---|
WO2005059238A1 (en) | 2005-06-30 |
ATE321909T1 (en) | 2006-04-15 |
KR20060121165A (en) | 2006-11-28 |
ES2259747T3 (en) | 2006-10-16 |
EP1541751B1 (en) | 2006-03-29 |
US20070128362A1 (en) | 2007-06-07 |
DE50302798D1 (en) | 2006-05-18 |
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