EP1896521A1 - Silicone resins having a defined reactivity - Google Patents

Silicone resins having a defined reactivity

Info

Publication number
EP1896521A1
EP1896521A1 EP06762139A EP06762139A EP1896521A1 EP 1896521 A1 EP1896521 A1 EP 1896521A1 EP 06762139 A EP06762139 A EP 06762139A EP 06762139 A EP06762139 A EP 06762139A EP 1896521 A1 EP1896521 A1 EP 1896521A1
Authority
EP
European Patent Office
Prior art keywords
hcl
radical
aryloxy
groups
units
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.)
Withdrawn
Application number
EP06762139A
Other languages
German (de)
French (fr)
Inventor
Frank Sandmeyer
Hans Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of EP1896521A1 publication Critical patent/EP1896521A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/38—Polysiloxanes modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C08G77/08—Preparatory processes characterised by the catalysts used

Definitions

  • the invention relates to silicone resins and a process for their preparation.
  • the reactivity of a silicone resin can be controlled by exchanging the alkoxy groups with silicon-bonded hydroxy groups in a silicone resin containing inert alkoxy groups by treatment with water vapor.
  • the object of the invention is to improve the state of the art, in particular to produce silicone resins whose reactivity is controlled by a parameter which is independent of the silanol content of the silicone resin.
  • the object is achieved by the invention.
  • the invention relates to a silicone resin composed of repeating units of the general formula (1)
  • a 1 represents the same or different hydrogen, alkyl, cycloalkyl, aryl or alkoxy radicals having an aliphatic linear or branched or a cycloaliphatic alkyl radical or an aryloxy radical, or denotes a functional radical which contains up to 18 C atoms and additionally one or more identical or different heteroatoms selected from O-, S, Si,
  • Cl, F, Br, P or N atoms may contain,
  • RA is identical or different aliphatic or cycloaliphatic alkoxy, aryloxy or hydroxy or a
  • Residual Al means where at least either T or Q units or both must be present and besides M and / or D units may be present and the silicone resin is characterized as containing at least 1 ppm HCl.
  • Preferred silicone resins are those having a weight average molecular weight between 800 and 500,000.
  • the amount of HCl is adjusted according to the desired reactivity, so according to the invention at least 1 ppm of HCl is present, preferably, the HCl amount of 1 ppm to 10 wt.% Based on the resin. However, preferably 1 ppm to 5 wt.%, Particularly preferably 1 ppm to 3 wt.% Contains amounts of HCl.
  • Another object of the invention is a process for the preparation of a silicone resin, wherein the synthesis is carried out starting from silanes and / or siloxanes containing hydrolyzable groups, and the synthesis comprises the steps of hydrolysis and condensation and either the hydrolyzable groups are silicon-bonded chlorine atoms or silicon-bonded alkoxy groups , Aryloxy or hydroxy groups, wherein gaseous or dissolved in water HCl is used in a step of the resin preparation and the HCl amount is adjusted according to the desired reactivity and too much metered HCl is removed.
  • the overdosed amount of HCl may be neutralized by other techniques known in the art such as gas stripping by vacuum or heating in the cases where the acid is a gaseous product such as HCl.
  • the silicone resins according to the invention are preferably used as binders for the production of coatings.
  • the silicone resins according to the invention surprisingly have, depending on the HCl content, a more or less high reactivity. They provide coatings in which they are used as binders, an excellent resistance, for example, to weathering, attack by chemical influences and UV radiation. Likewise, very good water resistance and low tendency to fouling can be achieved with these coatings.
  • hydrophobic copolymers can be used to produce porous coatings with a pigment volume concentration above the critical pigment volume concentration, which are characterized by excellent gas and water vapor permeability combined with high water repellency.
  • Silicone resins are also used as additive additions to preparations for coatings or other applications, as well as without further additives as pure on substrates film-forming or curing in blocks or other arbitrary forms material.
  • Control of rheological properties Control of mechanical properties, e.g. Flexibility, scratch resistance, elasticity, extensibility, bendability, tear behavior, rebound behavior, hardness, density, tear propagation resistance, compression set, behavior at different temperatures, coefficient of expansion, abrasion resistance and other properties such as thermal conductivity, flammability, gas permeability, resistance to water vapor, hot air, chemicals, weathering and radiation, the sterilizability, of
  • Solid bodies or films obtainable from the preparation containing the dispersion according to the invention
  • Control of electrical properties such as dielectric loss factor, dielectric strength, dielectric constant, tracking resistance, Lichbogenbe pretechnik, surface resistance, specific breakdown resistance,
  • silicone resins according to the invention allow the above-described properties to be manipulated are the preparation of coating materials and impregnations and coatings and coatings to be obtained therefrom on substrates, such as metal, glass, wood, mineral substrate, synthetic and natural fibers for production of textiles, carpets,
  • the silicone resins according to the invention can be incorporated in liquid or in hardened solid form in elastomer compositions. Here, they may be used for the purpose of enhancing or improving other performance characteristics such as control of transparency, heat resistance, yellowing tendency, weathering resistance.
  • a methyl silicone resin composed of 87% units of the formula Me-Si (O) 3/2 and 13% units of the formula Me2Si (O) 2/2, which additionally contains 5.8% by weight of ethoxy groups and 0.9

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Silicon Polymers (AREA)

Abstract

The invention relates to silicone resins that are constituted of repetitive units of general formula (1) [A<SUP>1</SUP> <SUB>z</SUB>R

Description

Silicoπharze mit definierter Reaktivität Silicoπharze with defined reactivity
Die Erfindung betrifft Siliconharze und ein Verfahren zu ihrer Herstellung .The invention relates to silicone resins and a process for their preparation.
Gemäß DE 195 07 594 Al kann die Reaktivität eines Siliconharzes dadurch gesteuert werden, dass man in einem Siliconharz, das reaktionsträge Alkoxygruppen enthält, durch Behandlung mit Wasserdampf die Alkoxygruppen durch siliziumgebundene Hydroxygruppen austauscht.According to DE 195 07 594 A1, the reactivity of a silicone resin can be controlled by exchanging the alkoxy groups with silicon-bonded hydroxy groups in a silicone resin containing inert alkoxy groups by treatment with water vapor.
Weitere Ansätze, zur Herstellung von OH-reichen in ihrer Reaktivität angepassten Siliconharzen sind in US 2 832 794 und US 3 489 782 wiedergegeben. Dabei sind jeweils bestimmte Verfahrensparameter einzuhalten, die zu eigenen spezifischen Produkten führen, durch die geforderte Steuerung der Reaktivität ermöglicht wird.Further approaches to the preparation of OH-rich silicone resins adapted in their reactivity are given in US 2,832,794 and US 3,489,782. In each case, certain process parameters must be observed, which lead to their own specific products, is made possible by the required control of reactivity.
Die Aufgabe der Erfindung ist es den Stand der Technik zu verbessern, insbesondere Siliconharze herzustellen, deren Reaktivität durch einen Parameter gesteuert wird, der vom Silanolgehalt des Siliconharzes unabhängig ist. Die Aufgabe wird durch die Erfindung gelöst.The object of the invention is to improve the state of the art, in particular to produce silicone resins whose reactivity is controlled by a parameter which is independent of the silanol content of the silicone resin. The object is achieved by the invention.
Gegenstand der Erfindung ist ein Siliconharze aufgebaut aus Wiederholungseinheiten der allgemeinen Formel (1)The invention relates to a silicone resin composed of repeating units of the general formula (1)
[A1 zR1 pSiO(4_p_z)/2] (D,[A 1 z R 1 p SiO (4_p_ z) / 2] (D,
wobei z und p jeweils eine ganze Zahl im Wert von 0 - 3 bedeuten,where z and p each represent an integer in the value of 0-3,
A1 gleiche oder verschiedene Wasserstoff-, Alkyl-, Cycloalkyl-, Aryl- oder Alkoxyreste mit einem aliphatischen linearen oder verzweigten oder einem cycloaliphatischen Alkylrest oder einen Aryloxyrest bedeutet, oder einen funktionellen Rest bedeutet, der bis zu 18 C-Atome enthält und zusätzlich eines oder mehrere gleiche oder verschiedene Heteroatome ausgewählt aus 0-, S, Si,A 1 represents the same or different hydrogen, alkyl, cycloalkyl, aryl or alkoxy radicals having an aliphatic linear or branched or a cycloaliphatic alkyl radical or an aryloxy radical, or denotes a functional radical which contains up to 18 C atoms and additionally one or more identical or different heteroatoms selected from O-, S, Si,
Cl, F, Br, P oder N-Atomen enthalten kann, wobei,Cl, F, Br, P or N atoms may contain,
RA gleiche oder verschiedene aliphatische oder cycloaliphatische Alkoxy-, Aryloxy oder Hydroxyreste oder einenRA is identical or different aliphatic or cycloaliphatic alkoxy, aryloxy or hydroxy or a
Rest Al bedeutet, wobei mindestens entweder T oder Q-Einheiten oder beide vorhanden sein müssen, und daneben M und / oder D-Einheiten vorhanden sein können und das Siliconharz dadurch gekennzeichnet ist, dass es mindestens 1 ppm HCl enthält.Residual Al means where at least either T or Q units or both must be present and besides M and / or D units may be present and the silicone resin is characterized as containing at least 1 ppm HCl.
Bevorzugte Silconharze sind solche mit einem Molekulargewichtsmittel zwischen 800 und 500 000.Preferred silicone resins are those having a weight average molecular weight between 800 and 500,000.
Die HCl Menge wird entsprechend der gewünschten Reaktivität eingestellt, so ist erfindungsgemäß mindestens 1 ppm HCl vorhanden, vorzugsweise beträgt die HCl Menge von 1 ppm bis 10 Gew.% bezogen auf Harz. Jedoch sind bevorzugt 1 ppm bis 5 Gew.%, besonders bevorzugt 1 ppm bis 3 Gew.% Mengen an HCl enthalten.The amount of HCl is adjusted according to the desired reactivity, so according to the invention at least 1 ppm of HCl is present, preferably, the HCl amount of 1 ppm to 10 wt.% Based on the resin. However, preferably 1 ppm to 5 wt.%, Particularly preferably 1 ppm to 3 wt.% Contains amounts of HCl.
Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung eines Siliconharzes, wobei die Synthese ausgehend von Silanen und / oder Siloxanen erfolgt, die hydrolysierbare Gruppen enthalten, und die Synthese die Schritte Hydrolyse und Kondensation umfasst und entweder die hydrolysierbaren Gruppen siliziumgebundene Chloratome sind oder siliziumgebundene Alkoxygruppen, Aryloxy oder Hydroxgruppen, wobei in einem Schritt der Harzherstellung gasförmige oder in Wasser gelöste HCl eingesetzt wird und die HCl Menge entsprechend der gewünschten Reaktivität eingestellt wird und zuviel zudosierte HCl entfernt wird.Another object of the invention is a process for the preparation of a silicone resin, wherein the synthesis is carried out starting from silanes and / or siloxanes containing hydrolyzable groups, and the synthesis comprises the steps of hydrolysis and condensation and either the hydrolyzable groups are silicon-bonded chlorine atoms or silicon-bonded alkoxy groups , Aryloxy or hydroxy groups, wherein gaseous or dissolved in water HCl is used in a step of the resin preparation and the HCl amount is adjusted according to the desired reactivity and too much metered HCl is removed.
Die zuviel dosierte HCl-Menge kann durch neutralisieren oder andere Verfahren nach Stand der Technik, wie Austreiben als Gas durch Anlegen von Vakuum oder Erhitzen in den Fällen, in denen es sich bei der Säure um ein an sich gasförmiges Produkt handelt, wie etwa HCl, entfernt werden.The overdosed amount of HCl may be neutralized by other techniques known in the art such as gas stripping by vacuum or heating in the cases where the acid is a gaseous product such as HCl.
Die erfindungsgemäßen Siliconharze werden vorzugsweise als Bindemittel zur Herstellung von Beschichtungen verwendet. Die erfindungsgemäßen Siliconharze verfügen überraschend je nach HCl Gehalt über eine mehr oder weniger hohe Reaktivität. Sie verleihen Beschichtungen, in denen sie als Bindemittel eingesetzt werden, eine ausgezeichnete Widerstandsfähigkeit, zum Beispiel gegen Bewitterungseinflüsse, Angriff durch chemische Einflüsse und UV Strahlung. Ebenso lassen sich mit diesen Beschichtungen sehr gute Wasserfestigkeit und geringe Verschmutzungsneigung realisieren. Mit hydrophob eingestellten Copolymeren lassen sich zudem poröse Beschichtungen realisieren, mit einer Pigmentvolumenkonzentration über der kritischen Pigmentvolumenkonzentration, die sich durch exzellente Gas- und Wasserdampfdurchlässigkeit bei gleichzeitig hoher Wasserabweisung auszeichnen. Durch das Einpolymerisieren von Silanen, die hydrolysierbare und kondensierbare Gruppen enthalten, in das Copolymer, lassen sich Bindemittel herstellen, die nach dem Auftrag feuchtigkeitshärtend sind, so dass sich die Filmhärten, Thermoplastizität und die Verschmutzungsneigung einstellen lassen.The silicone resins according to the invention are preferably used as binders for the production of coatings. The silicone resins according to the invention surprisingly have, depending on the HCl content, a more or less high reactivity. They provide coatings in which they are used as binders, an excellent resistance, for example, to weathering, attack by chemical influences and UV radiation. Likewise, very good water resistance and low tendency to fouling can be achieved with these coatings. In addition, hydrophobic copolymers can be used to produce porous coatings with a pigment volume concentration above the critical pigment volume concentration, which are characterized by excellent gas and water vapor permeability combined with high water repellency. By copolymerizing silanes containing hydrolyzable and condensable groups into the copolymer, it is possible to prepare binders which are moisture-curing after application, so that the film hardness, thermoplasticity and tendency to fouling can be set.
Außer zu diesem Zwecke können die erfindungsgemäßenExcept for this purpose, the inventive
Siliconharze auch als additivische Zusätze zu Zubereitungen für Beschichtungen oder andere Einsatzzwecke verwendet werden, sowie ohne weitere Zusatzstoffe als reines über Substraten filmbildendes oder zu Blöcken oder anderen beliebigen Formen aushärtendes Material.Silicone resins are also used as additive additions to preparations for coatings or other applications, as well as without further additives as pure on substrates film-forming or curing in blocks or other arbitrary forms material.
Weitere Eigenschaften, die durch die Verwendung der erfindungsgemäßen Siliconharze alleine oder in Kombination mit oder als Bestandteil von anderen Zubereitungen manipuliert werden können sind z.B.: Steuerung des elektrischen Leitfähigkeit und des elektrischen WiderstandesFurther properties which can be manipulated by the use of the silicone resins according to the invention alone or in combination with or as a constituent of other preparations are, for example: Control of electrical conductivity and electrical resistance
Steuerung der Verlaufseigenschaften Stabilisierung oder Destabilisierung von Schaum - Steuerung des Glanzes eines feuchten oder gehärteten Filmes oder eines Objektes Erhöhung der BewitterungsbeständigkeitControl of flow properties Stabilization or destabilization of foam - Control of the gloss of a wet or cured film or object Increasing the weathering resistance
- Erhöhung der Chemikalienresistenz Erhöhung der Farbtonstabilität - Reduzierung der Kreidungsneigung- Increase in resistance to chemicals Increase in color stability - Reduction of chalking tendency
Reduzierung oder Erhöhung der Haft- und Gleitreibung auf Festkörpern oder Filmen erhalten aus Zubereitungen, die erfindungsgemäße Dispersion enthaltenReduction or increase in static friction and sliding friction on solids or films obtained from preparations containing the dispersion according to the invention
- Verbesserung der Nasshaftung - Verbesserung der Nassabriebfestigkeit Verbesserung der Haftung zu Substraten Verbesserung der Zwischenschichthaftung zwischen zwei Substraten, Filmen, etc. Steuerung des Füllstoff- und Pigmentnetz- und - dispergierverhaltens,Improvement of wet adhesion Improvement of wet abrasion resistance Improvement of adhesion to substrates Improvement of interlayer adhesion between two substrates, films, etc. Control of filler and pigment wetting and dispersing behavior.
Steuerung der rheologischen Eigenschaften Steuerung der mechanischen Eigenschaften, wie z.B. Flexibilität, Kratzfestigkeit, Elastizität, Dehnbarkeit, Biegefähigkeit, Reißverhalten, Rückprallverhalten, Härte, Dichte, Weiterreißfestigkeit, Druckverformungsrest, Verhalten bei verschiedenen Temperaturen, Ausdehnungskoeffizient, Abriebfestigkeit sowie weiterer Eigenschaften wie der Wärmeleitfähigkeit, Brennbarkeit, Gasdurchlässigkeit, Beständigkeit gegen Wasserdampf, Heißluft, Chemikalien, Bewitterung und Strahlung, der Sterilisierbarkeit, vonControl of rheological properties Control of mechanical properties, e.g. Flexibility, scratch resistance, elasticity, extensibility, bendability, tear behavior, rebound behavior, hardness, density, tear propagation resistance, compression set, behavior at different temperatures, coefficient of expansion, abrasion resistance and other properties such as thermal conductivity, flammability, gas permeability, resistance to water vapor, hot air, chemicals, weathering and radiation, the sterilizability, of
Festkörpern oder Filmen erhältlich aus der Zubereitung die die erfindungsgemäße Dispersion enthältSolid bodies or films obtainable from the preparation containing the dispersion according to the invention
Steuerung elektrischer Eigenschaften, wie z.B. dielektrischer Verlustfaktor, Durchschlagfestigkeit, Dielektrizitätskonstante, Kriechstromfestigkeit, Lichbogenbeständigkeit, Oberflächenwiderstand, spezifischer Durchschlagswiderstand,Control of electrical properties, such as dielectric loss factor, dielectric strength, dielectric constant, tracking resistance, Lichbogenbeständigkeit, surface resistance, specific breakdown resistance,
Beispiele für Anwendungsfelder, in denen die erfindungsgemäßen Siliconharze die oben bezeichneten Eigenschaften zu manipulieren gestatten, sind die Herstellung von Beschichtungsstoffen und Imprägnierungen und daraus zu erhaltenden Beschichtungen und Überzügen auf Substraten, wie Metall, Glas, Holz, mineralisches Substrat, Kunst- und Naturfasern zur Herstellung von Textilien, Teppichen,Examples of application fields in which the silicone resins according to the invention allow the above-described properties to be manipulated are the preparation of coating materials and impregnations and coatings and coatings to be obtained therefrom on substrates, such as metal, glass, wood, mineral substrate, synthetic and natural fibers for production of textiles, carpets,
Bodenbelägen, oder sonstigen aus Fasern herstellbaren Gütern, Leder, Kunststoffe wie Folien, Formteilen. Die erfindungsgemäßen Siliconharze können in flüssiger oder in ausgehärteter fester Form in Elastomermassen eingearbeitet werden. Hierbei können sie zum Zwecke der Verstärkung oder zur Verbesserung anderer Gebrauchseigenschaften wie der Steuerung der Transparenz, der Hitzebeständigkeit, der Vergilbungsneigung, der Bewitterungsbeständigkeit verwendet werden .Floor coverings, or other fiber-produced goods, leather, plastics such as films, moldings. The silicone resins according to the invention can be incorporated in liquid or in hardened solid form in elastomer compositions. Here, they may be used for the purpose of enhancing or improving other performance characteristics such as control of transparency, heat resistance, yellowing tendency, weathering resistance.
Beispiel :Example:
Ein Methylsiliconharz zusammengesetzt aus 87% Einheiten der Formel Me-Si (O) 3/2 und 13 % Einheiten der Formel Me2Si(O)2/2, das zusätzlich 5,8 Gewichtsprozent Ethoxygruppen und 0,9A methyl silicone resin composed of 87% units of the formula Me-Si (O) 3/2 and 13% units of the formula Me2Si (O) 2/2, which additionally contains 5.8% by weight of ethoxy groups and 0.9
Gewichtsprozent OH Gruppen auf der Oberfläche besitzt, wurde in Toluol aufgelöst, so dass eine 50%-ige Lösung entstand. Zu dieser Mischung, die 0,02 Gewichtsprozent Salzsäure enthielt, wurde verdünnte, wäßrige Salzsäure zudosiert, so dass eine Konzentrationsreihe entstand.Percent by weight OH groups on the surface, was dissolved in toluene, so that a 50% solution was formed. Diluted aqueous hydrochloric acid was added to this mixture, which contained 0.02% by weight hydrochloric acid, to form a concentration series.
Folgende Konzentrationen an Salzsäure wurden eingestellt: - 8,78 Gew.% HCl auf Festkörper Harz (d.h. dass sich bei einer 50%-igen Harzlösung die Angabe 8,78 Gew.% bei 100 g dieser Harzzubereitung auf die 50 g darin enthaltenes Harz bezieht)The following concentrations of hydrochloric acid were adjusted: - 8.78% by weight of HCl on solid resin (ie, for a 50% resin solution, 8.78% by weight for 100 g of this resin formulation refers to the 50 g of resin contained therein)
- 1,61 Gew.% HCl auf Festkörper Harz - 1,57 Gew.% HCl auf Festkörper Harz- 1.61 wt.% HCl on solid resin - 1.57 wt.% HCl on solid resin
Diese Proben wurden bei 500C gelagert und beobachtet nach welcher Zeit sich eine Trübung aufgrund der Aufkondensation der enthaltenen Harzmoleküle einstellt, also die Vernetzung beginnt.These samples were stored at 50 0 C and observed after which time a turbidity due to the condensation of the resin molecules contained, so the crosslinking begins.
Folgende Zeiten wurden erhalten:The following times were obtained:
- mit 0,02 Gew.% HCl: 96 h - mit 1,57 Gew.% HCl: 34 h- with 0.02 wt.% HCl: 96 h - with 1.57 wt.% HCl: 34 h
- mit 1,61 Gew.% HCl: 28 hwith 1.61 wt.% HCl: 28 h
- mit 8,78 Gew.% HCl: 8 h. with 8.78% by weight of HCl: 8 h.

Claims

Patentansprüche claims
1. Siliconharze aufgebaut aus Wiederholungseinheiten der allgemeinen Formel (1)1. Silicone Resins Made up of Repeating Units of the General Formula (1)
[A1 ZR1PSiO (4-p-z)/2] (D/[A 1 Z R 1 PSiO (4-pz) / 2] ( D /
wobei z und p jeweils eine ganze Zahl im Wert von 0 - 3 bedeuten,where z and p each represent an integer in the value of 0-3,
A1 gleiche oder verschiedene Wasserstoff-, Alkyl-, Cycloalkyl-, Aryl- oder Alkoxyreste mit einem aliphatischen linearen oder verzweigten oder einem cycloaliphatischen Alkylrest oder einen Aryloxyrest bedeutet, oder einen funktionellen Rest bedeutet, der bis zu 18 C-Atome enthält und zusätzlich eines oder mehrere gleiche oder verschiedene Heteroatome ausgewählt aus 0-, S, Si, Cl, F, Br, P oder N-Atomen enthalten kann, wobei, R1 gleiche oder verschiedene aliphatische oder cycloaliphatische Alkoxy- , Aryloxy oder Hydroxyreste oder einen Rest Al bedeutet, wobei mindestens entweder T oder Q-Einheiten oder beide vorhanden sein müssen, und daneben M und / oder D-Einheiten vorhanden sein können und das Siliconharz dadurch gekennzeichnet ist, dass es mindestens 1 ppm HCl enthält.A 1 represents the same or different hydrogen, alkyl, cycloalkyl, aryl or alkoxy radicals having an aliphatic linear or branched or a cycloaliphatic alkyl radical or an aryloxy radical, or denotes a functional radical which contains up to 18 C atoms and additionally one or a plurality of identical or different heteroatoms selected from O, S, Si, Cl, F, Br, P or N atoms may contain, wherein, R 1 is identical or different aliphatic or cycloaliphatic alkoxy, aryloxy or hydroxy or an Al radical wherein at least either T or Q units or both must be present and besides M and / or D units may be present and the silicone resin is characterized in that it contains at least 1 ppm HCl.
2. Verfahren zur Herstellung eines Siliconharzes nach Anspruch 1, dadurch gekennzeichnet, dass die Synthese ausgehend von Silanen und / oder Siloxanen erfolgt, die hydrolysierbare Gruppen enthalten, und die Synthese die Schritte Hydrolyse und Kondensation umfasst und entweder die hydrolysierbaren Gruppen siliziumgebundene Chloratome sind oder siliziumgebundene Alkoxygruppen, Aryloxy oder Hydroxgruppen, wobei in einem Schritt der Harzherstellung gasförmige oder in Wasser gelöste HCl eingesetzt wird und die HCl Menge entsprechend der gewünschten Reaktivität eingestellt wird und zuviel zudosierte HCl entfernt wird. 2. A process for preparing a silicone resin according to claim 1, characterized in that the synthesis is carried out starting from silanes and / or siloxanes containing hydrolyzable groups, and the synthesis comprises the steps of hydrolysis and condensation and either the hydrolyzable groups are silicon-bonded chlorine atoms or silicon-bonded Alkoxy groups, aryloxy or hydroxy groups, wherein in one step of the resin preparation gaseous or dissolved in water HCl is used and the amount of HCl according to the desired reactivity is adjusted and too much added HCl is removed.
EP06762139A 2005-06-30 2006-06-22 Silicone resins having a defined reactivity Withdrawn EP1896521A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005030579A DE102005030579A1 (en) 2005-06-30 2005-06-30 Silicone resins with defined reactivity
PCT/EP2006/006021 WO2007003277A1 (en) 2005-06-30 2006-06-22 Silicone resins having a defined reactivity

Publications (1)

Publication Number Publication Date
EP1896521A1 true EP1896521A1 (en) 2008-03-12

Family

ID=37056763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762139A Withdrawn EP1896521A1 (en) 2005-06-30 2006-06-22 Silicone resins having a defined reactivity

Country Status (7)

Country Link
US (1) US20100160590A1 (en)
EP (1) EP1896521A1 (en)
JP (1) JP2008546896A (en)
KR (1) KR20080017434A (en)
CN (1) CN101208374A (en)
DE (1) DE102005030579A1 (en)
WO (1) WO2007003277A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6328920B2 (en) * 2013-12-12 2018-05-23 大日本塗料株式会社 Cement roof tile manufacturing method
EP3401353B1 (en) * 2017-05-08 2021-06-23 Evonik Operations GmbH Mixtures of cyclic branched d/t-type siloxanes and their ensuing products
CN107602861B (en) * 2017-08-28 2021-01-12 哈尔滨工业大学无锡新材料研究院 Water-based flame-retardant fluorine-containing silicone oil and preparation method thereof
EP3467006B1 (en) * 2017-10-09 2022-11-30 Evonik Operations GmbH Mixtures of cyclic branched d/t-type siloxanes and their ensuing products

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832794A (en) * 1952-11-05 1958-04-29 Allied Chem & Dye Corp Hydrolysis of organosilanes
FR1472047A (en) * 1965-06-29 1967-03-10 Soc Ind Des Silicones Polycondensates of silanes and process for preparing said polycondensates
US5457220A (en) * 1994-04-29 1995-10-10 General Electric Company Process for the production of crosslinked siloxanes by disproportionation
DE19800023A1 (en) * 1998-01-02 1999-07-08 Huels Silicone Gmbh Continuous process for the production of polyorganosiloxanes
JP2000191792A (en) * 1998-12-25 2000-07-11 Seiwa Kasei:Kk Polysiloxane particle
US7451619B2 (en) * 2003-06-26 2008-11-18 Central Glass Company, Limited Organic-inorganic hybrid glassy materials and their production processes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007003277A1 *

Also Published As

Publication number Publication date
US20100160590A1 (en) 2010-06-24
JP2008546896A (en) 2008-12-25
DE102005030579A1 (en) 2007-01-04
KR20080017434A (en) 2008-02-26
WO2007003277A1 (en) 2007-01-11
CN101208374A (en) 2008-06-25

Similar Documents

Publication Publication Date Title
EP2178947B1 (en) Process for controlled hydrolysis and condensation of epoxy-functional organosilanes and the cocondensation thereof with further organofunctional alkoxysilanes
DE3586423T2 (en) HEAT-CURABLE SILICONE RESINS, THEIR USE AND STABILIZER THEREFOR.
EP0960921B1 (en) Oligomeric organopolysiloxan cocondensate, his preparation and use for coating surfaces
DE69015856T2 (en) Solvent-free silicone coating agent.
DE102007020404A1 (en) Process for the preparation of a coating material
EP3036273A1 (en) Silicone resin compositions which can be cured at room temperature
EP2064293A2 (en) Silane coating material and method for the production of a silane coating
DE19828256A1 (en) Antifouling agents, a process for their production and use, and antifouling coatings made therefrom
DE19834990A1 (en) Siloxane oligomers containing acryloxypropyl or methacryloxypropyl groups
DE102007060334A1 (en) Silane-based and aqueous coating system, its preparation and use
DE2855791C3 (en) Pigment-free aqueous coating material
EP3707107B1 (en) Alkyl silicone resin as additive for hydrophobising fibre cement
DE3786868T2 (en) Coating composition based on a thermosetting fluorosiloxane.
DE102011007006A1 (en) Aqueous dispersions of organosilicon compounds
EP4015592A2 (en) Curable condensation compounds on the basis of alkoxy-functional polysiloxanes
WO2017016967A1 (en) Process for preparing organopolysiloxanes
EP0828794A1 (en) Aqueous dispersions of organopolysiloxanes
DE69928069T2 (en) Aqueous fluoroelastomer coatings and cured films thereof
EP1896521A1 (en) Silicone resins having a defined reactivity
EP2622004B1 (en) Curable organopolysiloxane composition
DE1253847B (en) Binder for stoving varnish
WO2006125708A1 (en) Composition comprising functionalised polyhedral oligomeric silasesquioxane and method for its production
DE2216689A1 (en) Self-bonding, thermosetting silicone rubber compositions
EP3713992B1 (en) Process for preparing branched organopolysiloxanes
EP1069148B1 (en) Aqueous, silicone-containing building protecting agents

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071221

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB NL

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20080417

RBV Designated contracting states (corrected)

Designated state(s): BE DE FR GB NL

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20081028