WO1998000463A1 - Utilisation de complexes du platine notamment a titre de catalyseurs d'hydrosilylation homogenes et thermoactivables - Google Patents
Utilisation de complexes du platine notamment a titre de catalyseurs d'hydrosilylation homogenes et thermoactivables Download PDFInfo
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- WO1998000463A1 WO1998000463A1 PCT/FR1997/001157 FR9701157W WO9800463A1 WO 1998000463 A1 WO1998000463 A1 WO 1998000463A1 FR 9701157 W FR9701157 W FR 9701157W WO 9800463 A1 WO9800463 A1 WO 9800463A1
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/1608—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes the ligands containing silicon
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- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2282—Unsaturated compounds used as ligands
- B01J31/2291—Olefins
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
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- B01J31/2295—Cyclic compounds, e.g. cyclopentadienyls
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- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
- C07F15/0086—Platinum compounds
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- 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
- C08L83/04—Polysiloxanes
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- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/32—Addition reactions to C=C or C-C triple bonds
- B01J2231/323—Hydrometalation, e.g. bor-, alumin-, silyl-, zirconation or analoguous reactions like carbometalation, hydrocarbation
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- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
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- B01J2531/828—Platinum
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- 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
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- C08G77/06—Preparatory processes
- C08G77/08—Preparatory processes characterised by the catalysts used
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- 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
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
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- 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
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
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- 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
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
- C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups
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- 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
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
- C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
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- 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
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- 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
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
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- 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
- C08G77/70—Siloxanes defined by use of the MDTQ nomenclature
Definitions
- the present invention relates to the field of catalysis of crosslinking or functionalization reactions of polymer chains, e.g. silicones. It is more particularly question, in the present description, of substrates to be crosslinked of polyorganosiloxane type A having, per molecule, at least one reactive radical Si-H, while being free of silicon atoms bonded to more than two atoms of hydrogen. These substrates A are intended to react with substrates of type B having, per molecule, at least one reactive unsaturated aliphatic group and / or at least one reactive function, eg epoxide, in the presence of a catalyst comprising at least one platinum complex, such a reaction being initiated or activated thermally.
- a catalyst comprising at least one platinum complex
- the present invention relates, first of all, to the use of thermoactive organoplatinic complexes in crosslinking by hydrosilylation of polyorganosiloxanes A of Si-H type and of compounds B with aliphatic unsaturation and / or with reactive function.
- the present invention also relates to a hydrosilylation process in which the above complexes are used, as well as compositions crosslinkable by thermoactivation and containing, inter alia, the substrates A and B as well as the above complexes.
- the invention also encompasses the functionalization of silicone oils containing SiH units by terminal unsaturated derivatives. These can include other functions other than unsaturation, for example: epoxide, alcohol, ester, amino, etc.
- this KARSTEDT catalyst suffers from its too weak activity.
- the loss of activity is due to the formation of inactive species in catalysis and insoluble in the reaction medium.
- This catalyst can also be improved, as regards the reaction rate and its effective lifetime in the reaction medium.
- KARSTEDT catalyst has relatively poor storage stability (gel time at 25 ° C less than or equal to 1 min)
- Another objective of the invention is to provide a hydrosilylation process by thermoactivation of reactive products , and in particular of silicones, in which the abovementioned catalytic systems are used, said process having to be implemented a easy, fast, and inexpensive
- Another objective of the invention is to provide compositions of silicone oils crosslinkable by thermoactivation - which comprise the above homogeneous catalytic systems,
- compositions stable in storage, can be used, for example, for paper anti-adhesion, dental impressions, sealing or jointing materials, adhesives, or for any other application in which it is advantageous to use performs cross-linking in situ (solvent-free) of silicone elastomers.
- platinum complexes with a formal oxidation state 0 as a heat-activated, homogeneous catalyst, based on platinum and useful in particular in hydrosilylation.
- silanes and / or siloxanes A having, per molecule, at least one reactive radical SiH and free of silicon atom bonded to more than two hydrogen atoms and, on the other hand, compounds B having at least one reactive group and / or at least one reactive function, of at least one platinum complex of formula:
- n 1 or 2
- ⁇ L ⁇ and L ⁇ . are identical or different and are selected from among the binding olefins, preferably from the following olefinic residues, substituted or not: • + norbornene
- L ⁇ and L ⁇ . can also together form a single diolefin ligand, preferably formed by:
- R 1 , R 2 , R 3 , R 4 are different or similar to each other and represent an alkyl and or acyl group, preferably an alkyl having from 1 to 18 carbon atoms, the methyl, ethyl, propyl, pentyl groups , hexyl, allyl, acetyl, propionyie being particularly preferred and especially methyl,
- L is chosen from ligands ⁇ , L 2 defined below
- Y 1 , Y 2 , Y 3 , Y 4 independently represents a hydrogen, a halogen, an alkyl, an aryl, an alkoxyl, a hydroxyl, or else Y 1 and Y 4 or Y 2 and Y 3 can also form together at least a cyclic group, aromatic or not, and comprising one or more rings, condensed or not, the said cycles being optionally substituted by monovalent radicals corresponding to the definition given above for Y 1 to Y 4 , ⁇ E 1 , E 2 are identical or different and represent.
- NR 5 with R 5 C r C 6 alkyl or alkenyl
- the present invention therefore consists of an advantageous and inventive selection of platinum complexes (I) which are particularly suitable for reaction catalysis, in particular of the hydrosilylation type, and which can be activated thermally.
- heat-activated catalysts envisaged in the context of the use according to the invention are particularly advantageous in the context of crosslinking or functionalization, for example of silicones of the SiH and SIVI type, by hydrosilylation.
- the ligands L platinum complexes (I) are selected from the following L 1 and L 2 subgroups ⁇ L,
- L ⁇ and L ⁇ . together form (II).
- the catalyst is advantageously used in a reaction medium consisting of a stable solution of said catalyst and of the reactants , in at least one organic solvent.
- this organic solvent can for example be an alkane such as hexane, cyclohexane, methylcyclohexane or their mixtures.
- the solvent can also be chosen from the following products: toluene, xylene, chlorobenzene, and mixtures thereof, eg
- the catalyst contains, in the free state, at least one stabilizing agent formed by at least one ligand Ls of formula L, or L 2 as defined above.
- the ligand Ls forming the stabilizing agent can be identical or different to the ligands (L ,, L 2 ) of the complexes (I).
- Ls radical ligands mention may be made of naphthoquinone, methylnaphthoquinone, chloronaphthoquinone or tetracyanoethylene. According to the invention, it is advantageous to use the compound Ls in the catalytic system in an excess of 1 to 30, preferably 10 to 20 molar equivalents relative to the platinum present.
- This Ls compound can in fact be considered as a catalyst inhibitor. It is moreover possible to use in combination or as a replacement for Ls other conventional inhibitors of hydrosilylation catalysts. These inhibitors also known under the name of thermal blockers make it possible to increase the "pot life" of the compositions considered (stabilities greater than 3-5 days) without harming the kinetics of hydrosililation.
- R is a linear or branched alkyl radical, or a phenyl radical; . R 'is H or a linear or branched alkyl radical, or a phenyl radical; the radicals R, R 1 and the carbon atom located at ⁇ of the triple bond which can optionally form a ring; the total number of carbon atoms contained in R and R 1 being at least 5, preferably from 9 to 20.
- Said alcohols are preferably chosen from those having a boiling point above 250 ° C. Mention may be made, by way of examples:. ethynyl-1-cyclohexanol 1;
- the synthesis of the platinum complexes (I) according to the invention consists in reacting a ligand L with products of average formula [Pt 2 ] [V ⁇ e 2 Si - O - Si Me 2 V ⁇ ] 3 These products are preferably formed by a KARSTEDT catalyst solution. This reaction can be carried out in bulk or in a solvent, such as toluene, ethanol or isopropanol.
- the invention also relates to new platinum complexes of formula (I) as defined above, in which L ⁇ and L ⁇ are identical or different and are selected from binding olefins, preferably from the following olefin residues, substituted or not + norbornene
- the present invention also relates to a heat-activatable catalyst based on platinum and useful in particular in hydrosilylation between, on the one hand, silanes and / or siloxanes A having, per molecule, at least a reactive radical SiH and free of silicon atom bonded to more than two hydrogen atoms and, on the other hand, compounds B having at least one reactive group and / or at least one reactive function, characterized
- This catalyst can be one of those suitable for use in accordance with the invention and set out above.
- One of the forms of presentation of the above heat-activated catalyst can be, in accordance with the invention, a stable and homogeneous solution of said catalyst in at least one organic solvent, preferably chosen from alkanes, for example hexane, cyclohexane or methylcyclohexane and their mixtures or even among the following products: toluene, xylene, chlorobenzene, eg and their mixtures.
- the platinum complexes (I) are homogeneous and have a high efficiency in hydrosilylation. olefins. They generate a high reaction speed and are endowed with a long effective life which results in their capacity for catalysis for a large number of cycles.
- the catalyst can comprise a precursor of the complexes (I).
- a precursor is advantageously constituted by a composition of the starting materials for the synthesis of the complexes (I), namely: catalyst of KARSTEDT and ligand L in excess for (I) and for example (nbn) 3 Pt for ( II).
- the formation of the platinum complexes takes place in situ, before and / or during the use of the crosslinkable composition containing the precursor composition. This greatly simplifies the preparation.
- the present invention relates to a hydrosilylation process between, on the one hand, silanes and / or siloxanes such as polyorganosiloxanes A having, per molecule, at least one reactive radical Si-H and free silicon atoms linked to more than two hydrogen atoms, and on the other hand, compounds B preferably chosen from polyorganosiloxanes and having, per molecule, at least one reactive unsaturated aliphatic group and / or at least one function reactive, process in which at least one platinum complex is used as catalyst.
- silanes and / or siloxanes such as polyorganosiloxanes A having, per molecule, at least one reactive radical Si-H and free silicon atoms linked to more than two hydrogen atoms
- compounds B preferably chosen from polyorganosiloxanes and having, per molecule, at least one reactive unsaturated aliphatic group and / or at least one function reactive, process in which at least one platinum complex is used as catalyst.
- This process differs from its similar in that it consists essentially in reacting compounds A and B in the presence of a catalytic system of the type of that according to the invention described above, and / or by using simultaneously a synthesis of either complexes (I) in which a precursor is formed, as described above, formed by a composition of the starting materials (excess ligand + KARSTEDT catalyst or (nbn) 3 Pt, the initiation of the reaction being carried out by thermoactivation.
- the compounds A are chosen from polyorganohydrogensiloxanes comprising: * units of the following formula:
- W are similar or different and representing a monovalent hydrocarbon group, free from any adverse action on the activity of the catalyst and preferably chosen from (cyclo) alkyl groups having from 1 to 18 carbon atoms inclusive and, advantageously, from methyl, ethyl, propyl, octyl and 3,3,3-trifluoropropyl groups and also from C 6 -C 12 aryl or aralkyl groups and, advantageously, among the xylyl and totyl and phenyl radicals, all of these groups being optionally halogenated (eg fluorine) and / or hydroxylated and / or alkoxylated.
- a is 1 or 2
- b is 0, 1 or 2
- the sum (a + b) has a value between 1 and 3, * and possibly other units of average formula: W c SiQ 4 .
- Organopolysiloxane A can only be formed of units of formula (1) or additionally comprise units of formula (2)
- Organopolysiloxane A can have a linear, branched or unbranched, cyclic or network structure.
- the degree of polymerization is greater than or equal to 2. More generally, it is less than 5,000.
- Examples of units of formula (1) are: H (CH 3 ) Si0 1/2 , HCH 3 Si0 2/2 , H (C 6 H 5 ) Si0 2/2 ,
- linear polymers When linear polymers are involved, these essentially consist of "D" W 2 Si0 2/2 , WHSi0 2/2 , and “M” W 3 Si0 1/2 or W 2 HSi0 1/2 units. , WH 2 Si0 1/2 ; the blocking terminal "M” units can be trialkylsiloxy, dialkylarylsiloxy groups.
- terminal "M” units mention may be made of trimethylsiloxy, dimethylphenylsiloxy, dimethylethoxysiloxy, dimethylethyltriethoxy-silylsiloxy groups, etc.
- Said linear polyorganosiloxanes A can be oils of dynamic viscosity at 25 ° C of the order of 1 to 100,000 mPa.s at 25 ° C, generally of the order of 10 to 5,000 mPa.s at 25 ° C, or gums having a molecular mass of the order of 1,000,000.
- cyclic polyorganosiloxanes these consist of units
- Said cyclic polyorganosiloxanes have a viscosity of the order of 1 to 5000 mPa.s
- the dynamic viscosity at 25 ° C all the silicone polymers considered in this presentation can be measured using a BROOKFIELD viscometer, according to AFNOR standard NFT 76 102 of February 1972
- the viscosity in question in this presentation is the dynamic viscosity at 25 ° C called “Newtonian”, that is to say the dynamic viscosity which is measured, in a manner known per se, at a shear rate gradient low enough for the viscosity measured to be independent of the speed gradient
- organopolysiloxanes A are examples of organopolysiloxanes A.
- compounds B they are selected from polyorganosiloxanes comprising similar or different units of formula W ′ d X e YfSi ⁇ 4. (d + e + f) (3)
- the symbols X are similar or different and represent a hydrogen atom or a reactive function, preferably epoxyfunctional, linked to silicon by a divalent radical eg C 1 -C 20 optionally comprising at least one heteroatom, the radicals X more particularly preferred being 3-glyc ⁇ doxypropyl, 4-éthaned ⁇ yle
- Y residues they are advantageously chosen from the following list vinyl, propenyl, 3-butenyl, 5-hexenyl, 9 decenyl, 10-undecenyl, 5.9 - decadienyl, 6-11-dodecad ⁇ enyl
- Organopolysiloxanes B can have a linear (branched or not) cyclic or network structure. Their degree of polymerization is preferably between 2 and 5000
- linear polymers When linear polymers are concerned, these essentially consist of units "D" W 2 S ⁇ 0 2/2 , XSiO 2/2 , YSiO 2/2 , and "M" W 3 Si0 1/2 , W 2 YSiO 1/2 , W 2 XS ⁇ O 1/2 , the terminal blocking "M” units can be t ⁇ alkylsiloxy, dialkylarylsiloxy, dialkylvinylsiloxy, dialkylalkenylsiloxy groups
- terminal "M" units mention may be made of tnmethylsiloxy, dimethylphenylsiloxy, dimethylvinylsiloxy, dimethylhexenylsiloxy, dimethylethoxysiloxy, dimethylethyltnethoxysilylsiloxy groups
- units "D” mention may be made of dimethylsiloxy, methylphenylsiloxy, methylvinylsiloxy, methylbutenylsiloxy, methylhexenylsiloxy, methyldecenylesiloxy, methyldecadienylsiloxy, methyl-3-hydroxypropyls ⁇ loxy, methyl-3-glycidoxypropyl , 4'-epoxycyclohexyl) ethylsiloxy, methyl-butoxysiloxy, methyl- ⁇ -tnmethoxysilylethylsiloxy, methyl- ⁇ -t ⁇ ethoxysilylethylsiloxy
- Said linear polyorganosiloxanes B can be oils of dynamic viscosity at 25 ° C of the order of 1 to 100,000 mPa s at 25 ° C, generally of the order of 10 to 5,000 mPa s at 25 ° C, or gums with a molecular mass of the order of 1,000,000
- cyclic polyorganosiloxanes B consist of "D" units W 2 S ⁇ 0 2/2 , WS ⁇ 0 2/2 , WYS ⁇ 0 2/2 , which may be of the dialkylsiloxy, alkylarylsiloxy, alkylvinylsiloxy, alkylYsiloxy, alkylXsiloxy type, examples of such units have already been mentioned above
- Said cyclic polyorganosiloxanes B have a viscosity ⁇ e of the order of 1 to 5000 mPa s
- aliphatic unsaturated compounds B useful in the context of the process according to the invention are, for example, those with olefinic or acetylenic unsaturation well known in the technical field under consideration In this regard, reference may be made to American patents Nos .
- the reaction mixture comprises compounds A and compounds B in an amount such that the molar ratio Si-H / unsaturated groups and / or reactive function eg epoxy, ie between 0.4 and 10 preferably between 1 and 4 and, more preferably still, of the order of 1.7
- the catalyst being present in an amount of 1 to 400, preferably from 10 to 300 and, more preferably, from 20 to 200 ppm of platinum metal, exp ⁇ més by weight relative to the compounds A and B present
- crosslinking reactions of silicone oils in particular hydrosilylation (e g SI-H / SI-VI), catalyzed by heat-sensitive platinum complexes, in accordance with the invention, obey a process of homogeneous catalysis
- thermoreticutable composition characterized in that it comprises the compounds A and B and a catalyst and / or a precursor thereof, as defined above
- the weight quantities of compounds A and B and of the catalyst are also given above
- compositions according to the invention are prepared either before (or even long before) or even immediately before the implementation of the hydrosilylation process
- compositions are particularly stable on storage and that, in accordance with the process of the invention, they offer rapid crosslinking kinetics. In addition, they offer great ease of handling, application or placement. on different supports or other shaping molds
- compositions and / or the process according to the invention can incorporate different additives, chosen according to the intended final application.
- II can be, for example, mineral fillers or not and / or pigments such as fibers. crushed or natural (polymers) calcium carbonate, talc, titanium dioxide clay or fumed silica This can improve eg the mechanical characteristics of the final materials
- Soluble dyes, oxidation inhibitors and or any other material which does not interfere with the catalytic activity of the platinum complex can also be added to the composition or used in the context of the process according to the invention Once prepared by mixing all the compounds referred to above, the composition can be applied, for vanity purposes, on the surface of any solid substrate.
- These solid supports can be paper, cardboard, wood, plastic (eg polyester, nylon, polycarbonate), fibrous supports woven or not made of cotton, polyester, nylon etc, or a metal, glass or ceramic
- compositions according to the invention are, in particular, those of crosslinkable silicone oils, useful for the preparation of non-stick coatings on fibrous supports of any kind and in particular on paper
- the above compositions make it possible to achieve very high coating speeds, due to their very rapid crosslinking kinetics
- the operating method used consists in reacting a ligand of type ⁇ on the KARSTEDT complex of ideal formula Pt 2 (V ⁇ Me 2 S ⁇ -0-S ⁇ Me 2 V ⁇ ) 3 This reaction can be carried out in bulk or in a solvent such as toluene, ethanol or isopropanol,
- Additional purification can be carried out by chromatography on silica using a diethyl ether / hexane mixture as eluent.
- the crystals of the various products are obtained by slow evaporation of a hexane solution.
- TETCE Tetra-ethyl tetra-carboxylato ethylene
- MeNQ Methyl-naphthoquinone YId: 64.8%
- ADB 9.10 dihydro-9, 10-ortho-benzenoanthracene-1, 4-dione (dihydro 9, 10 triptycenequinone)
- nbn norbomylene or bicyclo [2.2.1] hept-2-ene
- EXAMPLE II EVALUATION OF CATALYSTS (I) AND (II) IN HYDROSILYLATION.
- the temperature is regulated by reflux of a solvent. This removes the calories generated during the reaction and allows greater reproducibility of the catalysis.
- the solvent chosen is hexane. Its boiling point is 72 ° C. Following various tests carried out in the laboratory and in industry, the optimum alkene / silane ratio has a value of 2.
- the quantity of catalyst will be fixed at 6, 6. 10 " 6 mole of platinum for 3. 10 _ 3 mo
- the temperature is regulated at 30 ° C.
- the substrates are introduced at the same time.
- the substrates used are models for hydrosilylation, namely trimethylvinylsilane and triethylhydrogenosilane.
- the catalysts tested will be: (MeNQ) Pt (diene), (TCNE) Pt (diene), (FN) Pt (diene), (TETCE) Pt (diene), (NQ) Pt (diene), (DCNQ) Pt ( diene) and (P1) Pt (diene).
- the manipulations are carried out protected from light. Solvents and reagents are degassed before use. A comparison to the Karstedt catalyst is made. For the nomenclature, see example 1.
- the most effective catalyst is the platinum complex carrying Naphtoquinone.
- the ligand reactivity orders, thereafter, are TETCE> TCNE> FN.
- Several derivatives of this type have been synthesized and complexed.
- diene tetramethyldivinylsiloxane
- Fig. 2 appended shows a curve of the% of SiH consumed as a function of time.
- the various catalysts used have proven to be very effective in catalyzing the hydrosilylation of trimethylvinylsilane by triethylsilane. The most reactive is the complex (MeNQ) Pt (diene).
- the new synthesized catalysts are more effective than the Karstedt catalyst.
- the most reactive seem to be the quinone complexes. Their average half-reaction time is of the order of 35 minutes.
- the tetraethyl-tetracarboxylato-ethylene complex is also of comparable reactivity.
- the platinum complex (MeNQ) Pt (diene) was compared under the same operating conditions to the existing Karstedt catalyst in dimé ⁇ que type Pt2 (TMDVS) 3 Two tests were carried out at identical platinum concentration on the substrates previously used. The results are shown in the attached FIG. 3, which shows the curve of the% of silane SiH consumed as a function of time.
- the catalyst according to the invention has a longer lifespan than that of its known counterparts. In other words, this catalyst is recyclable
- Fig. 5 appended gives the curve of% of SiH consumed as a function of time, with ( ⁇ ) and without Hg (+) for the MeNQ Pt diene catalyst.
- Fig. 7 appended gives the% of SiH consumed as a function of time.
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU34495/97A AU3449597A (en) | 1996-06-28 | 1997-06-27 | Use of platinum complexes particularly as homogeneous and heat activable catalysts for hydrosilylation |
| EP97930610A EP0907685A1 (fr) | 1996-06-28 | 1997-06-27 | Utilisation de complexes du platine notamment a titre de catalyseurs d'hydrosilylation homogenes et thermoactivables |
| JP10503882A JP2000514849A (ja) | 1996-06-28 | 1997-06-27 | 熱活性化可能な均一ヒドロシリル化触媒としての白金錯体の使用 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/08302 | 1996-06-28 | ||
| FR9608302A FR2750349B1 (fr) | 1996-06-28 | 1996-06-28 | Utilisation de complexes du platine notamment a titre de catalyseurs d'hydrosilylation homogenes et thermoactivables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998000463A1 true WO1998000463A1 (fr) | 1998-01-08 |
Family
ID=9493688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/001157 Ceased WO1998000463A1 (fr) | 1996-06-28 | 1997-06-27 | Utilisation de complexes du platine notamment a titre de catalyseurs d'hydrosilylation homogenes et thermoactivables |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0907685A1 (fr) |
| JP (1) | JP2000514849A (fr) |
| AU (1) | AU3449597A (fr) |
| CA (1) | CA2259255A1 (fr) |
| FR (1) | FR2750349B1 (fr) |
| WO (1) | WO1998000463A1 (fr) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7157541B2 (en) | 2003-10-04 | 2007-01-02 | Goldschmidt Gmbh | Process for an addition reaction of organic silicon compounds having SiH groups with compounds having olefinic double bonds |
| EP1754740A2 (fr) | 2005-08-20 | 2007-02-21 | Goldschmidt GmbH | Procédé de préparation de produits d'addition à partir de composés comprenant des groupments SiH et composés comprenant des liaisons doubles en milieu aqueux |
| CN100390219C (zh) * | 2000-08-17 | 2008-05-28 | 罗狄亚化学公司 | 在催化金属络合物的存在下通过氢化硅烷化含有至少一个其中包括氧原子的烃环的合成子来制备硅油的方法 |
| DE102007013608A1 (de) | 2007-03-21 | 2008-09-25 | Wacker Chemie Ag | Si-substituierte Chinone als Co-Katalysatoren in der Übergangsmetall-katalysierten Hydrosilylierung |
| WO2016005157A1 (fr) | 2014-07-11 | 2016-01-14 | Evonik Degussa Gmbh | Composition contenant du platine |
| EP3020749A1 (fr) | 2014-11-12 | 2016-05-18 | Evonik Degussa GmbH | Procede de fabrication de compositions contenant du platine |
| CN105854945A (zh) * | 2016-03-03 | 2016-08-17 | 中科院广州化学有限公司南雄材料生产基地 | 一种可稳定储存含铂硅氢加成催化剂及其制备方法 |
| EP3415547A1 (fr) | 2017-06-13 | 2018-12-19 | Evonik Degussa GmbH | Procédé de fabrication de polyéthersiloxanes liés par sic |
| EP3415548A1 (fr) | 2017-06-13 | 2018-12-19 | Evonik Degussa GmbH | Procédé de fabrication de polyéthersiloxanes liés par sic |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837855A1 (de) | 1998-08-20 | 2000-02-24 | Wacker Chemie Gmbh | Härtbare Organopolysiloxanmassen |
| FR2825709B1 (fr) * | 2001-06-07 | 2005-07-01 | Rhodia Chimie Sa | Composition silicone reticulable en elastomere par hydrosilylation, en presence de catalyseurs metalliques a base de carbenes, et catalyseurs de ce type |
| FR2831544B1 (fr) | 2001-10-30 | 2005-07-01 | Rhodia Chimie Sa | Procede de preparation d'huiles silicones portant un groupement contenant au moins un cycle hydrocarbone dans lequel est inclus un atome d'oxygene |
| FR2879612B1 (fr) * | 2004-12-21 | 2007-05-04 | Rhodia Chimie Sa | Composition elastomere silicone, adhesive, monocomposante et reticulable par polyaddition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1495917A1 (de) * | 1962-07-02 | 1969-04-10 | Gen Electric | Verfahren zur Erhoehung des Molekulargewichts von Organopolysiloxanen |
| US3775452A (en) * | 1971-04-28 | 1973-11-27 | Gen Electric | Platinum complexes of unsaturated siloxanes and platinum containing organopolysiloxanes |
| EP0416471A2 (fr) * | 1989-08-31 | 1991-03-13 | Dow Corning Toray Silicone Company, Limited | Catalyseur en platine, son procédé de préparation et compositions d'organopolysiloxanes durcissables contenant ce catalyseur |
| WO1995025734A1 (fr) * | 1994-03-18 | 1995-09-28 | Rhone Poulenc Chimie | Complexes du platine et catalyseurs d'hydrosilylation photoactivables les contenant |
-
1996
- 1996-06-28 FR FR9608302A patent/FR2750349B1/fr not_active Expired - Fee Related
-
1997
- 1997-06-27 EP EP97930610A patent/EP0907685A1/fr not_active Withdrawn
- 1997-06-27 AU AU34495/97A patent/AU3449597A/en not_active Abandoned
- 1997-06-27 CA CA002259255A patent/CA2259255A1/fr not_active Abandoned
- 1997-06-27 JP JP10503882A patent/JP2000514849A/ja active Pending
- 1997-06-27 WO PCT/FR1997/001157 patent/WO1998000463A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1495917A1 (de) * | 1962-07-02 | 1969-04-10 | Gen Electric | Verfahren zur Erhoehung des Molekulargewichts von Organopolysiloxanen |
| US3775452A (en) * | 1971-04-28 | 1973-11-27 | Gen Electric | Platinum complexes of unsaturated siloxanes and platinum containing organopolysiloxanes |
| EP0416471A2 (fr) * | 1989-08-31 | 1991-03-13 | Dow Corning Toray Silicone Company, Limited | Catalyseur en platine, son procédé de préparation et compositions d'organopolysiloxanes durcissables contenant ce catalyseur |
| WO1995025734A1 (fr) * | 1994-03-18 | 1995-09-28 | Rhone Poulenc Chimie | Complexes du platine et catalyseurs d'hydrosilylation photoactivables les contenant |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390219C (zh) * | 2000-08-17 | 2008-05-28 | 罗狄亚化学公司 | 在催化金属络合物的存在下通过氢化硅烷化含有至少一个其中包括氧原子的烃环的合成子来制备硅油的方法 |
| US7157541B2 (en) | 2003-10-04 | 2007-01-02 | Goldschmidt Gmbh | Process for an addition reaction of organic silicon compounds having SiH groups with compounds having olefinic double bonds |
| EP1754740A2 (fr) | 2005-08-20 | 2007-02-21 | Goldschmidt GmbH | Procédé de préparation de produits d'addition à partir de composés comprenant des groupments SiH et composés comprenant des liaisons doubles en milieu aqueux |
| US7619035B2 (en) | 2005-08-20 | 2009-11-17 | Goldschmidt Gmbh | Method of producing addition products of compounds containing SiH groups onto reactants having one double bond on aqueous media |
| DE102007013608A1 (de) | 2007-03-21 | 2008-09-25 | Wacker Chemie Ag | Si-substituierte Chinone als Co-Katalysatoren in der Übergangsmetall-katalysierten Hydrosilylierung |
| WO2016005157A1 (fr) | 2014-07-11 | 2016-01-14 | Evonik Degussa Gmbh | Composition contenant du platine |
| DE102014213507A1 (de) | 2014-07-11 | 2016-01-14 | Evonik Degussa Gmbh | Platin enthaltende Zusammensetzung |
| US10836867B2 (en) | 2014-07-11 | 2020-11-17 | Evonik Operations Gmbh | Composition containing platinum |
| EP3020749A1 (fr) | 2014-11-12 | 2016-05-18 | Evonik Degussa GmbH | Procede de fabrication de compositions contenant du platine |
| CN105854945A (zh) * | 2016-03-03 | 2016-08-17 | 中科院广州化学有限公司南雄材料生产基地 | 一种可稳定储存含铂硅氢加成催化剂及其制备方法 |
| EP3415547A1 (fr) | 2017-06-13 | 2018-12-19 | Evonik Degussa GmbH | Procédé de fabrication de polyéthersiloxanes liés par sic |
| EP3415548A1 (fr) | 2017-06-13 | 2018-12-19 | Evonik Degussa GmbH | Procédé de fabrication de polyéthersiloxanes liés par sic |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000514849A (ja) | 2000-11-07 |
| CA2259255A1 (fr) | 1998-01-08 |
| EP0907685A1 (fr) | 1999-04-14 |
| FR2750349A1 (fr) | 1998-01-02 |
| AU3449597A (en) | 1998-01-21 |
| FR2750349B1 (fr) | 1998-10-16 |
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