EP2356180A1 - Mélanges de polymères renfermant des polymères à terminaison alcoxysilane - Google Patents

Mélanges de polymères renfermant des polymères à terminaison alcoxysilane

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Publication number
EP2356180A1
EP2356180A1 EP09771355A EP09771355A EP2356180A1 EP 2356180 A1 EP2356180 A1 EP 2356180A1 EP 09771355 A EP09771355 A EP 09771355A EP 09771355 A EP09771355 A EP 09771355A EP 2356180 A1 EP2356180 A1 EP 2356180A1
Authority
EP
European Patent Office
Prior art keywords
parts
blend
alkyl
carbon atoms
optionally
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.)
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Application number
EP09771355A
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German (de)
English (en)
Inventor
Wolfgang Ziche
Andreas Bauer
Volker Stanjek
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
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Wacker Chemie AG
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Filing date
Publication date
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of EP2356180A1 publication Critical patent/EP2356180A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C08L101/10—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing hydrolysable silane groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/14—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • 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
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • 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
    • C08G77/48—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • C08G77/50—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages

Definitions

  • This invention relates to blends (M) containing methyl dialkoxysilylmethyl or trialkoxysilylmethyl-terminated polymers prepared from these blends
  • Alkoxysilane groups and their structure are formed mainly by long-chain polymers (thermoplastics), relatively wide-meshed three-dimensional networks (elastomers) or highly crosslinked systems (thermosets).
  • silantermm striv polymer systems can be both the properties of the uncrosslinked polymers or polymer-containing mixtures (viscosity, melting point, Losigeen etc.) and the properties of the finished crosslinked materials (hardness, elasticity, tensile strength, elongation at break, heat resistance etc.) set almost arbitrarily. Consequently, the possibilities of substitution of such silane-degraded polymer systems are correspondingly diverse. Thus, they can be used, for example, for the production of elastomers, sealants, adhesives, elastic adhesive systems, hard and soft foams, a wide variety of coating systems or for impression compounds. These products can be applied in any form, such as brushing, spraying, pouring, pressing, filling, etc.
  • the adhesion profile is often improved or optimized by the addition of organofunctional silanes as adhesion promoters.
  • silanes with primary amino groups such as 3-aminopropyltrimethoxysilane lead here to a significant improvement in the adhesion properties, which is why this silane is almost included in all adhesives and sealants based on silane-terminated polymers.
  • the application of such silanes is state of the art and in various combinations
  • sealants In addition to a good adhesion adhesives but above all sealants must also have a very good elasticity. Not only the stretching plays a role, but also the relaxation after stretching or compression. These are usually measured as compression set, creep behavior or as restoring behavior. For example, ISO 11600 requires a provision of over 60% or even 70% for elastic sealants.
  • the elastic behavior is often due to the formulation, but also by the nature of the silane-crosslinking base polymers certainly.
  • Organic silane-crosslinking polymers especially those with difunctional end groups on the polymer, often show insufficient repulsion.
  • the wording is decisive for the properties.
  • US 6576733 describes a way to improve the recovery by a particular catalyst system, but containing tin.
  • the use of branched polymers causes an increase in the network density and thus an improvement in the elasticity.
  • the disadvantage here associated with the branching reduction of chain lengths between two network points, which usually leads to a significant deterioration of the mechanical properties, in particular the elongation at break but also the tear strength.
  • Aminoalkylalkoxysilanes in combination with epoxy-functional silanes to improve the recovery Disadvantages here are the increase of the modulus and the deterioration of the adhesion.
  • a particularly interesting type among the silane-terminated polymers is characterized in that the reactive alkoxysilyl groups are separated from an adjacent heteroatom only by a methylene spacer. These so-called ⁇ -alkoylsilylmethyl end groups have a particularly high reactivity to atmospheric moisture.
  • Corresponding polymers are described, for example, in WO 03/014226. For sufficiently fast curing, these polymers require no or only very small amounts of toxicologically critical tin catalysts and, if desired, can achieve significantly higher curing speeds. In this respect, the use of such ⁇ -alkoylsilylterminierter prepolymers is usually particularly desirable.
  • the object of the invention is therefore to provide blends based on ⁇ TM silane-crosslinking polymers which have a high recovery in the cured state after stretching.
  • the invention relates to mixing (M) containing
  • L is a divalent linking group selected from -O-, -S-,
  • R 1 and R 4 independently of one another are hydrocarbon radicals having 1-6 carbon atoms or ⁇ -oxaalkyl-alkyl radicals having a total of 2 20 carbon atoms,
  • R ⁇ is hydrogen, an optionally halogen-substituted cyclic, linear or branched C] _ to C ⁇ ß-alkyl or alkenyl radical or a Cg to C] _g ⁇ aryl radical and x is 2 or 3,
  • the mixture (M) contains less than 2 parts of one or more compounds having a primary amine function and less than 0.2 part of one or more tin-containing catalysts.
  • L is preferably -O-CO-N (R 2 ) -N (R 2 ) -CO-NH-, -NH-CO-N (R 2 ) -, and -N (R 2 J -CO-N (R 2 ) -, more preferably -O-CO-N (R 2 ), especially -O-CO-NH.
  • x is preferably 3.
  • R - * -, R ⁇ and R ⁇ are alkyl radicals such as the methyl TM, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, tert. Butyl, n-pentyl, isopentyl, neo-pentyl, tert.
  • -Pentyl radical hexyl radicals such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals such as the n-octyl radical and iso-octyl radicals such as the 2, 2, 4-trimethylpentyl radical, nonyl radicals such as the n-nonyl radical, decyl radicals such as the n-decyl radical, dodecyl radicals such as the n-dodecyl radical; Alkenyl radicals, such as the vinyl and the
  • Cycloalkyl radicals such as cyclopentyl, cyclohexyl, cycloheptyl radicals and methylcyclohexyl radicals
  • Aryl radicals such as the phenyl and the naphthyl radical
  • Alkaryl radicals such as o-, m-, p-tolyl radicals, xylyl radicals and ethylphenyl radicals
  • Aralkyl radicals such as the benzyl radical, the ⁇ - and the ß-phenylethyl radical.
  • the radicals R ⁇ and R ⁇ are preferably hydrocarbon radicals having 1 to 6 carbon atoms, in particular an alkyl radical having 1 to 4 carbon atoms.
  • R 2 particularly preferably represents a methyl radical
  • R 1 particularly preferably represents methyl or ethyl radicals.
  • the radical R 1 is preferably hydrogen or a hydrocarbon radical having 1 to 6 carbon atoms, more preferably hydrogen, an alkyl radical having 1 to 4 carbon atoms, in particular hydrogen.
  • the blend (M) contains less than 1 part, more preferably less than 0.5 part - especially less than 0.2 part - of one or more compounds having primary amine functionality. Most preferably, the blend (M) is free of any compounds having primary amine functionality.
  • the blend (M) contains less than 0.1 parts, more preferably less than 0.05 parts - especially less than 0.02 parts - of one or more tin catalysts, most preferably the blend (M) is free of any tin-containing catalysts.
  • the invention is based on the surprising finding that compounds with primary amine function in the provision
  • the blends (M) according to the invention are preferably characterized in that molded articles (F) which consist of the cured blend (M) after a 24-hour elongation of 30% exhibit a repulsion to DIN 53504 of more than 60%, preferably more than 65%, and more preferably more than 70%.
  • the main chains of the alkoxysilane-terminated polymers (A) that can be used may be branched or unbranched.
  • the middle chain lengths can be arbitrarily adjusted according to the respective desired properties of both the uncrosslinked mixture and the cured mass. They can be composed of different building blocks, usually these are polysiloxanes, polysiloxane-urea / urethane copolymers, polyurethanes, polyureas, polyethers, polyesters, polyacrylates and methacrylates, polycarbonates, polystyrenes, polyamides, polyvinyl esters or polyolefins such as polyethylene, polybutadiene, ethylene Olefin copolymers or styrene-butadiene copolymers. Of course, any mixtures or combinations of polymers with different main chains can be used.
  • silane derivatives of the general formula (1) a large number of possibilities are known. Especially:
  • the prepolymer (Al) itself consists of several building blocks (All, A12 ). It is not absolutely necessary that these building blocks (All, A12 ... ⁇ first, the prepolymer (Al) is prepared r which is then reacted with the Sila ⁇ (A2) to the finished polymer (A). Thus, a reversal of the reaction steps is also possible here, in which one or more building blocks (All, A12...) Are first reacted with the silane (A2), and the compounds thus obtained are only subsequently reacted with the remaining building blocks (All, A12. ..) are converted to the finished polymer (A).
  • prepolymers (Al) consisting of building blocks All, and A12 are OH, NR TM or NCO-terminated polyurethanes and polyureas, which can be prepared from polyisocyanates (building block All) and polyols (building block A12).
  • a silane (A2) is used, which is selected from silanes of the general formulas (3)
  • the concentrations of all participating in felliche reaction steps isocyanate groups and all isocyanate-reactive groups and the reaction conditions are preferably selected so that react in the course of the polymer synthesis all isocyanate groups.
  • the finished polymer (A) is thus preferably isocyanate-free.
  • prepolymers (Al) are polyesters, polycarbonates, polyester carbonates (eg those commercially available under the name “Desmophen 1700" and “Desmophen C-200” from Bayer AG, Germany), polybutenylenes and polybutadienylenes (eg Such êtlich obtainable under the name “Poly bd ® R-45 HTLO” by the company. Sartonaer Co., Inc., USA or "Kraton TM Liquid L-2203" by the company. Kraton Polymers US LL C).
  • prepolymers (Al) for preparing prepolymers (A) are polyesters, polyethers and polyurethanes.
  • Particularly preferred examples of prepolymers (Al) are divalent polyethers of the general formula (4)
  • R ⁇ may be identical or different and optionally substituted hydrocarbon radicals, preferably methylene, ethylene and 1, 2-propylene radicals, and ⁇ t is an integer from 1 to 600, preferably 50 to
  • prepolymers (Al) of the general formula (4) are commercially available under the name "Acclaim 12200", “Acclaim 18000” (both Bayer AG, Germany), “Alcupol 12041LM” from Repsol, Spain and “Poly L 220-10 from Arch Chemicals, USA),
  • the proportion of alkoxysilane-terminated polymers (A) is preferably 10-70% by weight, more preferably 15-50% by weight, in particular 20-40% by weight.
  • the innovative blends (M) contain besides the
  • Prepolymer (A) preferably one or more secondary or tertiary amines (B) as a curing catalyst (K).
  • secondary or tertiary ammoalkoxysilanes such as 3- (N-cyclohexylamino) -propyltrimethoxysilane, 3- (N-cyclo TM hexylamino) -propyltriethoxysilane, 3- (N-phenylamino) -propyl- trimethoxysilane, 3- (N-phenylammo) -propyltnethoxysilane, trimethylammonium, tributylamm, 1, 4-diazabicyclo [2,2,2] octane, N, N-bis (3tf, N-dimethyl-2-ammoethyl) -methylamine, N, N ⁇ dimethylcyclohexylamine, N, N-dimethylphenylamm, N-ethylmorpho
  • inventive mixtures (M) in addition to the prepolymers (A) one or more secondary or tertiary Ammoalkyl alkoxysilanes (KS) as a curing catalyst (K).
  • KS secondary or tertiary Ammoalkyl alkoxysilanes
  • Preferred ammoalkylalkoxysilanes are those of the general formula (5)
  • R 1, R ' is hydrogen or an alkyl, cycloalkyl, alkenyl or aryl radical having 1-10 carbon atoms which may optionally be substituted by halogen atoms and / or organic functions,
  • R *> is an alkyl, cycloalkyl, alkenyl or aryl radical having 1-10 carbon atoms, which may optionally be substituted by halogen atoms and / or organic functions
  • r is a bivalent alkyl, cycloalkyl, alkenyl or aryl radical having 1-10 carbon atoms , which may optionally be substituted by halogen atoms, and all other variables have the meanings given above.
  • R ⁇ > is preferably a hydrogen atom or an alkyl, cycloalkyl or aryl group having 1-10 carbon atoms, more preferably a hydrogen atom or a
  • R *> preferably represents an alkyl, cycloalkyl or aryl radical having 1-10
  • Carbon atoms, with phenyl radicals, cyclohexyl radicals or alkyl radicals having 1-8 carbon atoms are particularly preferred.
  • ⁇ 7 is preferably hydrogen.
  • KS ominoalkyl-alkoxysilanes
  • R 3 is methyl
  • R ⁇ , R6 is hydrogen, R *> cyclohexyl or phenyl.
  • the proportion of aminoalkylalkoxysilane (KS) is preferably 0.1-10% by weight, more preferably 0.1-5% by weight, in particular 0.2-3% by weight. based on the total weight of the mixture.
  • the novel polymer blends (M) may comprise further condensation catalysts (K), for example titanate esters, such as tetrabutyl titanate, tetrapropyl titanate, tetraisopropyl titanate, tetraacetylacetonate titanate or even acid catalysts, such as phosphoric acid or phosphoric acid esters, toluenesulfonic acids, mineral acids.
  • K condensation catalysts
  • titanate esters such as tetrabutyl titanate, tetrapropyl titanate, tetraisopropyl titanate, tetraacetylacetonate titanate
  • acid catalysts such as phosphoric acid or phosphoric acid esters, toluenesulfonic acids, mineral acids.
  • the various catalysts can be used both in pure form and as mixtures.
  • These further condensation catalysts are preferably used in concentrations of 0.01-10% by weight, more preferably 0.1-2 % By weight, based on the total weight of the blend, of the polymer blends (M).
  • the blends (M) according to the invention may also contain tin compounds, such as dibutyltin dilaurate, dibutyltin maleate, dibutyltin diacetate, dibutyltin dioctanoate, dibutyltin acetylacetonate, dibutyltin oxide or corresponding dioctyltin compounds within the above-indicated concentration limits as curing catalysts (K).
  • the blends (M) according to the invention are preferably tin-free.
  • the blends (M) according to the invention may also contain primary amines, in particular primary osilminosilanes such as 3-aminopropyltrimethoxysilane or 3-aminopropyltriethoxysilane, within the above-indicated concentration limits as curing catalysts (K).
  • primary osilminosilanes such as 3-aminopropyltrimethoxysilane or 3-aminopropyltriethoxysilane
  • the blends (M) according to the invention are free of primary amines.
  • the polymer blends according to the invention preferably further comprise fillers (F), for example calcium carbonates in the form of natural ground chalks, ground and coated crayons, precipitated crayons, precipitated and coated crayons, clay minerals, bentonites, kaolins, talc, titanium dioxides, aluminum oxides, aluminum trihydrate,
  • fillers for example calcium carbonates in the form of natural ground chalks, ground and coated crayons, precipitated crayons, precipitated and coated crayons, clay minerals, bentonites, kaolins, talc, titanium dioxides, aluminum oxides, aluminum trihydrate,
  • the fillers (F) are preferably added to the polymer blends (M) in concentrations of 10-70% by weight, more preferably 30-60% by weight, based on the total weight of the blend.
  • the novel polymer blends (M) may contain, in addition to the optionally used as catalyst (K) silanes (including the silanes (KS) according to the formula (5)) also further silanes (S) with or without additional organofunction.
  • silanes including the silanes (KS) according to the formula (5)
  • S further silanes with or without additional organofunction.
  • These are preferably water scavengers and / or silane crosslinkers, for example alkylsilanes such as methyltrimethoxysilane, vinylsilanes such as vinyltrimethoxy, vinyltriethoxy, Vxnylmethyldimethoxysilan or organofunctional silanes such as O-Methylcarbamatomethyl methyldiraethoxysilane, O-Methylcarbamatomethyl-trimethoxysilane, 0 TM Ethylcarbarnatomethyl ⁇ methyldiethoxysilane, O-ethylcarbamat
  • the water scavengers and / or Silanvernetzer serving silanes (S) are preferably in concentrations of 0.1 to 10 wt .-%, particularly preferably 0.5 to 2 wt .-%, based on the total weight of the mixture, the Polymerabmischungen (M) added.
  • silanes (S) as well as the silanes used as catalyst (K) can simultaneously serve as adhesion promoters (H).
  • the blends (M) according to the invention may of course also contain further adhesion promoters (H).
  • the novel polymer blends may contain plasticizers (W), for example phthalate esters, such as Dioctyl phthalate, Dusooctylphthalat, Diundecylphthalat, Adipmsaureester, such as Dioctyladipat, benzoic acid esters, glycol esters, phosphoric acid esters, sulfonic acid esters, polyesters, polyethers, polystyrenes, polybutadienes, polyisobutenes, paraffinic hydrocarbons, higher, branched hydrocarbons, etc.
  • W plasticizers
  • W plasticizers
  • phthalate esters such as Dioctyl phthalate, Dusooctylphthalat, Diundecylphthalat, Adipmsaureester, such as Dioctyladipat
  • benzoic acid esters glycol esters, phosphoric acid esters, sulfonic acid esters, polyesters, polyethers,
  • the plasticizers (W) are preferably added to the polymer blends (M) in concentrations of up to 40% by weight, based on the total weight of the blend.
  • the polymer mixtures (M) according to the invention may also contain thixotropic agents, for example hydrophilic pyrogenic silicic acids, coated fumed silicas, precipitated silicas, polyamide monoxide, hydrogenated ricinols, stearate salts or precipitated chalks. Also, the above fillers can be used to adjust the flow properties.
  • thixotropic agents for example hydrophilic pyrogenic silicic acids, coated fumed silicas, precipitated silicas, polyamide monoxide, hydrogenated ricinols, stearate salts or precipitated chalks.
  • the above fillers can be used to adjust the flow properties.
  • the thixotropic agents are preferably added in concentrations of 1-5 wt .-%, based on the total weight of the blend, the polymer blends (M).
  • inventive polymer blends can furthermore light stabilizers r such as so-called HALS stabilizers,
  • Fungicides flame retardants, pigments, etc., as they are known for use m conventional alkoxy-crosslinking emkomponentigen compositions.
  • the above additives are preferably used.
  • a mixture of polymer (A) and filler is first prepared, and then aminoalkylalkoxysilane (BS) is added.
  • Shaped bodies (F) e.g. Adhesive joints which can be produced by curing the mixtures (M) according to the invention are likewise provided by the invention.
  • the moldings (F) preferably have a 30% elongation after a 24-hour stretch
  • novel polymer blends are available for countless different backgrounds such as e.g. mineral substrates, metals, plastics, glass, ceramics, painted surfaces, etc. suitable.
  • Comparative Example Ib is prepared analogously, but aminopropyltrimethoxysilane (GENIOSIL® GF96 - Wacker Chemie AG) is used instead of cyclohexylaminomethyltriethoxysilane.
  • GENIOSIL® GF96 - Wacker Chemie AG aminopropyltrimethoxysilane
  • 35 g of a silane-terminated polyether obtainable from EP 1.534.940 B from Acclaim Polyol 18200S (Bayer Material Science AG) and isocyanatomethyltriethoxysilane are mixed in a Speedmixer from Hauschild (D-59065 Hamm) at 25 ° C. with 25 g of PPG 2000 ( Dow Chemical) and 3 g of methylcarbamatotrimethoxysilane, available under the name GENIOSIL® XL63 (Wacker Chemie AG), mixed for 2 minutes at 200 rpm. Thereafter, 1.50 g of a hydrophilic.
  • Fumed silica HDK® N20 (170-230 m 2 / g) (Wacker Chemie AG) is stirred until it is homogeneously distributed. Subsequently 60.4 g of chalk Carbital HOS (Imerys) are introduced and the filler digested with stirring for one minute at 600 U / min. After incorporation of the chalk, 0.1 g of cyclohexylaminomethyltriethoxysilane (GENIOSIL® XL926 - Wacker Chemie AG) is distributed for 1 minute at 200 rpm. Homogenized for 2 minutes at 600 rpm and 1 minute at 200 rpm in a partial vacuum (about 100 mbar) and stirred bubble-free.
  • the formulation is filled in 310 ml PE cartridges and stored for one day at 25 0 C.
  • Example 2b is prepared analogously, but the hydrophilic, fumed silica HDK® H15 (170-230 m 2 / g, Wacker Chemie AG) is used instead of the HDK® N20.
  • Formulations with a silanten ⁇ in capable of methylene-Dimethoxysilylend phenomenon (alpha-dimethoxy) 35 g of a silantermln capable polyether, available after EP 1.534.940 B from Acclaim Polyol 12200S ⁇ Bayer Material Science) and isocyanatomethyldimethoxysilane in a Speedmixer Fa. Hauschild (D-59065 Hamm) at 25 ° C. with 25 g of PPG 2000 (from Dow Chemical) and 3 g of methylcarbamatotrimethoxysilane, available under the name GENIOSIL® XL63 (Wacker Chemie AG), for 2 minutes at 200 rpm.
  • GENIOSIL® XL63 Wang Chemie AG
  • the formulation is filled in 310 ml PE cartridges and stored for one day at 25 0 C.
  • Comparative Example 3b is prepared analogously, but aminopropyltrimethoxysilane (GENIOSIL ⁇ GF96 - Wacker Chemie AG) is used instead of cyclohexylaminomethyl-triethoxysilane.
  • GENIOSIL ⁇ GF96 - Wacker Chemie AG aminopropyltrimethoxysilane

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un mélange (M) comprenant : A) 100 parties d'un polymère (A) à terminaison alcoxysilylméthyle ayant au moins un groupe terminal de formule générale (1) -L- (CH2) -SiR2 3-x(OR1) x (1), où L désigne un groupe de liaison à double liaison, choisi à partir de -O-, -S-, -(R3)N-, -O-CO-N(R3)-, -N(R3)-CO-O-, -N(R3)-CO-NH-, -NH-CO-N(R3)-, -N (R3) -CO-N (R3), R1 et R2 désignent, indépendamment l'un de l'autre, un reste hydrocabure de 1 à 6 atomes de carbone, ou un reste ω-oxa-alkyl-alkyle ayant au total 2-20 atomes de carbone, R3 désigne l'hydrogène, un reste alkyle ou alcényle en C1 à C18 cyclique, linéaire ou ramifié, éventuellement substitué par un halogène, ou un reste aryle en C6-C18 et x est égal à 2 ou 3; B) 0,01 à 10 parties d'un catalyseur de durcissement (K) qui accélère le durcissement du mélange (M) en présence de l'humidité de l'air; C) 0 à 1000 parties d'une ou plusieurs charges (F); D) 0 à 50 parties d'un ou plusieurs monomères silane (S) en tant qu'absorbeur d'eau et agent de réticulation du silane; E) 0 à 200 parties d'un ou plusieurs agents amolissants (W); et F) 0 à 50 parties d'un ou plusieurs promoteurs d'adhérence (H), et F) éventuellement, d'autres adjuvants et additifs, ledit mélange (M) renfermant moins de 2 parties d'un ou plusieurs composés à fonction amine primaire, et moins de 0,2 partie d'un ou plusieurs catalyseurs stanniques.
EP09771355A 2008-12-11 2009-12-10 Mélanges de polymères renfermant des polymères à terminaison alcoxysilane Withdrawn EP2356180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008054541A DE102008054541A1 (de) 2008-12-11 2008-12-11 Alkoxysilanterminierte Polymere enthaltende Polymerabmischungen
PCT/EP2009/066798 WO2010066826A1 (fr) 2008-12-11 2009-12-10 Mélanges de polymères renfermant des polymères à terminaison alcoxysilane

Publications (1)

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EP2356180A1 true EP2356180A1 (fr) 2011-08-17

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EP09771355A Withdrawn EP2356180A1 (fr) 2008-12-11 2009-12-10 Mélanges de polymères renfermant des polymères à terminaison alcoxysilane

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US (1) US20110257324A1 (fr)
EP (1) EP2356180A1 (fr)
JP (1) JP2012511607A (fr)
KR (1) KR20110095394A (fr)
CN (1) CN102272233A (fr)
DE (1) DE102008054541A1 (fr)
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WO2010066826A1 (fr) 2010-06-17
DE102008054541A1 (de) 2010-06-17
CN102272233A (zh) 2011-12-07
US20110257324A1 (en) 2011-10-20
KR20110095394A (ko) 2011-08-24

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