WO2016102358A1 - Katalysator-zusammensetzung zur härtung von epoxidgruppen-haltigen harzen - Google Patents
Katalysator-zusammensetzung zur härtung von epoxidgruppen-haltigen harzen Download PDFInfo
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- WO2016102358A1 WO2016102358A1 PCT/EP2015/080469 EP2015080469W WO2016102358A1 WO 2016102358 A1 WO2016102358 A1 WO 2016102358A1 EP 2015080469 W EP2015080469 W EP 2015080469W WO 2016102358 A1 WO2016102358 A1 WO 2016102358A1
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- 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
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2009—Heterocyclic amines; Salts thereof containing one heterocyclic ring
- C08G18/2027—Heterocyclic amines; Salts thereof containing one heterocyclic ring having two nitrogen atoms in the ring
-
- 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
- C08G18/003—Polymeric products of isocyanates or isothiocyanates with epoxy compounds having no active hydrogen
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4045—Mixtures of compounds of group C08G18/58 with other macromolecular compounds
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
Definitions
- the present invention relates to a catalyst composition for curing epoxy group-containing resins, in particular epoxy / polyurethane hybrid resins, a method for curing these resins using the catalyst composition, the use of said catalyst composition for curing epoxy-containing resins and a Dosing system comprising the resin and the catalyst composition.
- Epoxy group-containing resins are established as starting materials for plastics in the prior art. In conventional manufacturing processes, these resins are cured at room temperature by means of catalysts. The currently used catalysts have very different curing times. For example, aliphatic amines cure epoxide group-containing resins in less than a minute, whereas imidazoles and imidazole derivatives take several hours to fully cure such resins.
- cure times can be regulated, at least in part, over the amounts of catalyst, it is known that both the increase and the decrease in the amount of catalyst used can adversely affect the physical properties of the resulting plastics, such as the glass transition temperature.
- catalyst compositions comprising (i) at least one ionic imidazolium compound and (ii) at least one base, in particular a nonionic base comprising a tertiary nitrogen atom and / or an imine nitrogen, epoxy group-containing Fully cure resins within a few minutes.
- the inventors have found that the mixture of ionic imidazolium compounds and suitable bases, ie in particular nonionic, nitrogenous bases, can shorten the curing times provided by the imidazole compounds.
- the present invention relates to a catalyst composition for curing an epoxy group-containing resin, in particular an epoxy / polyurethane hybrid resin, comprising:
- Ri and R3 are each independently selected from the group consisting of substituted or unsubstituted, linear or branched alkyl of 1 to 20, especially 1 to 10, carbon atoms, substituted or unsubstituted, linear or branched alkenyl of 3 to 20 carbon atoms and substituted or unsubstituted Aryl of 5 to 20, especially 5 to 10, carbon atoms;
- R2 is hydrogen
- R4 and R5 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted, linear or branched alkyl of 1 to 20 carbon atoms, substituted or unsubstituted, linear or branched alkenyl of 3 to 20 carbon atoms, substituted or unsubstituted, linear or branched Alkoxy of 1 to 20 carbon atoms and substituted or unsubstituted aryl of 5 to 10 carbon atoms, especially hydrogen;
- R 1 and R 5 and / or R 3 and R 4 or R 4 and R 5 together with the carbon or nitrogen atoms to which they are attached form a 5-6 membered substituted or unsubstituted cycloalkyl, cycloheteroalkyl, aryl or heteroaryl ring, where the cycloheteroalkyl or heteroaryl ring contains 1 to 3 heteroatoms selected from O, N and S;
- X is any anion
- n 1, 2 or 3; and (ii) at least one base, in particular a nonionic nitrogen-containing base, wherein the base preferably comprises at least one tertiary nitrogen atom and / or one imine nitrogen atom.
- the use of the catalyst compositions according to the invention in transfer molding processes is particularly advantageous because of the curing time, since the resins do not cure too fast (ie in ⁇ 1 min) or too slowly (ie in> 30 min) , This allows optimum filling or pouring of the mold or chamber in which the resin is cured, and clogging of the filling nozzles of the manufacturing equipment is avoided.
- the catalyst composition cures the resin sufficiently rapidly ( ⁇ 30 minutes) that the filled mold or chamber in which the resin hardens is not over-used and is more readily available in the manufacturing process. As a result, the production plant can be better utilized, resulting in a higher production throughput and cost savings.
- the plastic In contrast to very rapidly ( ⁇ 1 min) hardened plastics, the plastic thus obtainable has fewer defects and thus a higher quality in terms of physical properties, for example with regard to the glass transition temperature and the mechanical resistance. Particularly advantageous is a pot life of 2 to 10 minutes.
- the present invention is directed to a process for curing an epoxy group-containing resin, particularly an epoxy / polyurethane hybrid resin, wherein the resin is contacted with the catalyst composition described herein under conditions that allow for cure.
- the present invention relates to the use of the catalyst composition as described herein for curing an epoxy group-containing resin, especially an epoxy / polyurethane hybrid resin.
- the invention also relates to a polymer composition containing at least one epoxy group-containing resin, in particular an epoxy / polyurethane hybrid resin, and a catalyst composition according to the invention.
- the present invention is directed to a dosing system comprising at least one epoxy group-containing resin, particularly an epoxy / polyurethane hybrid resin, and the catalyst composition described herein, wherein the catalyst composition and resin are in separate containers are included.
- This metering system may further comprise a metering device in preferred embodiments.
- At least one refers to 1 or more, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9 or more. It refers to constituents of the catalyst compositions described herein Specifying not the absolute amount of molecules but the nature of the ingredient.
- “At least one ionic compound” therefore means, for example, one or more different ionic compounds, ie one or more different types of ionic compounds. Together with quantities, the quantities refer to the total amount of the corresponding designated type of ingredient as defined above.
- the catalyst composition according to the invention for curing an epoxy-group-containing resin, in particular an epoxy / polyurethane hybrid resin comprises at least one ionic compound of the formula (I)
- Ri and R3 in formula (I) are each independently selected from the group consisting of substituted or unsubstituted, linear or branched alkyl of 1 to 20 carbon atoms, substituted or unsubstituted, linear or branched alkenyl of 3 to 20 carbon atoms, and substituted or unsubstituted Aryl having 5 to 20 carbon atoms.
- Ri and R3 are selected from the group consisting of substituted or unsubstituted, linear or branched alkyl of 1 to 10 carbon atoms and substituted or unsubstituted aryl of 5 to 10 carbon atoms.
- R4 and R5 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted, linear or branched alkyl of 1 to 20 carbon atoms, substituted or unsubstituted, linear or branched alkenyl of 3 to 20 carbon atoms, substituted or unsubstituted, linear or branched alkoxy of 1 to 20 carbon atoms and substituted or unsubstituted aryl of 5 to 10 carbon atoms.
- R4 and R5 in formula (I) are hydrogen.
- Ri and R5 and / or R3 and R4 or R4 and R5, together with the carbon or nitrogen atoms to which they are attached, may be a 5-6 membered substituted or unsubstituted cycloalkyl, cycloheteroalkyl, aryl or heteroaryl ring the cycloheteroalkyl or heteroaryl ring 1 to 3 heteroatoms selected from O, N and S, contains, form.
- both R1 and R5 and R3 and R4 may combine with each other to form a ring.
- R4 and R5 combine together, particularly to form a 6-membered aryl ring, such that the resulting compound is a benzimidazolium or a benzimidazolidinium.
- the anion X of the formula (I) may be any known anion suitable for the purpose according to the invention and may merely serve for charge balance of the cation of the ionic compound of the formula (I). It may be advantageous if the anion has no chelating properties.
- X is selected from the group consisting of dicyandiamide anion, F “ , Cr, Br, I “ , OH “ , HSOs “ , S0 3 2_ , S0 4 2 “ , N0 2 “ , N0 3 “ , P0 4 3 “ , BF 4 , PF 6 “ , CIO 4 “ , acetate, citrate, formate, glutarate, lactate, malate, malonate, oxalate, pyruvate, tartrate, cyanamide, SCN - and P (OEt) 2 0 2 - .
- X is selected from the group consisting of Cr, Br, I " , S0 4 2" , NO 2 -, NO 3 -, PO 4 3 “ , BF 4 , SbF 6 " PF 6 “ , ClOv, acetate , Cyanamide, SCN “ and P (OEt) 2 0 2 " .
- the index n is 1, 2 or 3.
- Alkyl refers to linear or branched alkyl groups such as methyl, ethyl, n-propyl and iso-propyl
- the alkyl groups may be substituted or unsubstituted but are preferably unsubstituted substituents, in particular selected from the group consisting of C6-i4 aryl, -OR, -NRR 'where R and R' is H or unsubstituted C1-10 alkyl can be respectively independently.
- the alkenyl radicals may be substituted or unsubstituted but is preferably unsubstituted. When substituted, the substituents are especially selected from the group consisting of C6-i4 aryl, -OR, -NRR 'where R and R' is H or unsubstituted C1-10 alkyl can be respectively independently.
- Aryl refers to aromatic groups which may have at least one aromatic ring, but may also have multiple condensed rings, such as phenyl, naphthyl, anthracenyl, etc.
- the aryl groups may be substituted or unsubstituted , the substituents are selected from the group consisting C 1-10 alkyl, C 2-10 alkenyl, -OR, -NRR ', wherein R and R' may each independently be H or unsubstituted C 1-10 alkyl.
- the compound of formula (I) is a 1,3-substituted imidazolium compound, i. R2, R4 and R5 are hydrogen.
- the substituents R 1 and R 3 are preferably selected from unsubstituted C 1-4 -alkyl radicals, in particular methyl and ethyl, i. the compounds are, for example, 1-ethyl-3-methyl-imidazolium compounds, or unsubstituted or substituted C 6 -aryl radicals, in particular phenyl substituted with one or more C 1-4 -alkyl substituents, such as, for example, 2,6-diisopropylphenyl.
- the anion may be in particular acetate, chloride, thiocyanate, diethyl phosphate or cyanocyanamide.
- the compound of formula (I) is selected from 1-ethyl-3-methyl-1H-imidazolium acetate, 1-ethyl-3-methyl-1H-imidazolium thiocyanate, 1-ethyl-3-methyl-1H-imidazolium cyanocyanamide , 1-ethyl-3-methyl-1H-imidazolium diethyl phosphate and 1,3-bis (2,6-diisopropylphenyl) -1H-imidazolidinium chloride.
- the catalyst composition according to the invention comprises at least one base.
- the base has a base strength sufficient to deprotonate, under use conditions, the 2-position of the compound of formula (I). That the base has a corresponding acid with an acid constant pKs which is greater than the acid constant of the H atom in position 2 of the compound of formula (I) (pKs (base)> pKs (compound formula (I).)
- the difference in the acid constant is preferably at least 1.
- the corresponding acid of the base has a pKa of 10 or more, more preferably 12-14 or more.
- Corresponding acid as used in this context refers to the protonated form of the base.
- the base is a nonionic nitrogen-containing base containing a tertiary nitrogen atom and / or an imine nitrogen. Any known nonionic nitrogen-containing base capable of deprotonating the ionic compound of the formula (I) in the 2-position may be used.
- tertiary indicates that to the nitrogen atom contained in the at least one nonionic base, three organic moieties are covalently bonded via single bonds.
- the at least one nonionic base may contain an imine nitrogen atom.
- imines refers to the known class of compounds and indicates that the nitrogen atom has a covalent double bond to an organic radical and a single covalent bond to another organic radical. Imines are Schiff bases.
- the catalyst composition of the invention may, in various embodiments, contain a plurality of nonionic bases, for example a base with an imine nitrogen and a base with a tertiary nitrogen atom.
- the nonionic base may also be both a tertiary amine and an imine containing both a tertiary nitrogen atom and an imine nitrogen.
- the at least one nonionic base is a tertiary amine of (II) NReR / Rs and / or an imine of the formula (III)
- the radicals R6 to Rs and R4 are each independently selected from the group consisting of substituted or unsubstituted, linear or branched alkyl of 1 to 20 carbon atoms, substituted or unsubstituted, linear or branched alkenyl of 3 to 20 carbon atoms, and substituted or unsubstituted aryl having 5 to 20 carbon atoms, or at least two of R6 to Rs together with the nitrogen atom to which they are attached form a 5- to 10-membered heteroalicyclic ring or heteroaryl ring optionally containing one or more further nitrogen atoms, especially 1 another nitrogen atom.
- R 9 is a substituted or unsubstituted, linear or branched alkylenyl having from 3 to 20 carbon atoms, or R 9 and R 10 together with the nitrogen atom to which they are attached form a 5- to 10-membered heteroalicyclic ring or heteroaryl ring, which is optional contains additional nitrogen atoms.
- Alkylenyl refers to an alkyl radical attached to the nitrogen atom via a double bond. When substituted, the substituents are defined as described above for alkyl radicals.
- the tertiary amine bases or imine bases are cyclic compounds containing at least two nitrogen atoms, ie, at least two of R6-R10 combine with each other to form a ring with the nitrogen atom to which they are attached furthermore, another nitrogen atom in the form of a radical -NRR ', wherein the nitrogen atom is a ring atom and the radical R or R' is involved in the ring formation.
- the bases are, for example, imidazole derivatives, such as for example, 1-alkylimidazole or 2,4-dialkylimidazole, amidine derivatives such as 1, 8-diazabicyclo [5.4.0] undec-7-ene (DBU), or bicyclic tertiary amines such as 1, 4-diazabicyclo [2.2.2 ] octane (DABCO; triethylenediamine).
- imidazole derivatives such as for example, 1-alkylimidazole or 2,4-dialkylimidazole
- amidine derivatives such as 1, 8-diazabicyclo [5.4.0] undec-7-ene (DBU)
- DBU diazabicyclo [2.2.2 ] octane
- DABCO 1, 4-diazabicyclo [2.2.2 ] octane
- the at least one nonionic base is selected from the group consisting of 1-methylimidazole, 2,4-ethylmethylimidazole, 1,4-diazabicyclo [2.2.2] octane (DABCO), 1,8-diazabicyclo [5.4.0] undec-7-en (DBU) and their mixtures.
- the base may also be selected from alcoholates or lithium alkyl compounds, optionally also in combination with the nitrogenous bases described above.
- the catalyst composition contains a 1-ethyl-3-methyl-1H-imidazolium salt, especially the thiocyanate, and 2,4-ethylmethylimidazole.
- the catalyst composition may comprise the at least one ionic compound of formula (I) and the at least one base, for example, in a weight ratio of 10: 1 to 1:10, preferably 3: 1 to 1: 3, and more preferably 1: 1: 1 to 1 : 1, 1 included.
- the catalyst composition of the invention may consist of the above-mentioned compounds, i. be present as a mixture of the two components in pure form, stored or used. However, it is also possible to dissolve the composition in a solvent, in particular an organic solvent.
- a solvent in particular an organic solvent.
- any known and suitable for the purpose of the invention solvents can be used.
- the solvent may be selected according to criteria concerning the use or the method. This criterion can be, for example, the reaction temperature, the miscibility with other solvents used or the type of educts used.
- the solvent may be a high boiling organic solvent.
- the solvent is selected from the group consisting of petroleum, benzene, toluene, xylene, ethylbenzene, and mixtures thereof.
- the catalyst compositions of the invention include other ingredients known and customary in the art as such.
- epoxy group-containing resins that are cured with the catalyst compositions described herein include any known resin suitable for the purpose of this invention.
- resins as used herein includes monomers, Prepolymers and polymers and mixtures of the aforementioned.
- Particularly suitable epoxy-containing resins are resins having from 1 to 10 epoxy groups per molecule.
- Epoxide groups as used herein refers to 1,2-epoxide groups (oxiranes).
- the epoxide group-containing resin may in principle be a saturated, unsaturated, cyclic
- suitable resins include, but are not limited to, polyglycidyl ethers commonly obtained by reaction of epichlorohydrin or epibromohydrin with polyphenols in the presence of alkali, or polyglycidyl ethers of phenolic or non-aliphatic polyisocyanates.
- Formaldehyde novolak resins alkyl-substituted phenol-formaldehyde resins (epoxy novolac resins), phenol-hydroxybenzaldehyde resins, cresol-hydroxybenzaldehyde resins, dicyclopentadiene-phenolic resins, and dicyclopentadiene-substituted phenolic resins, for example, polyphenols suitable for this purpose Resorcinol, catechol, hydroquinone, bisphene ol A (2,2-bis (4-hydroxyphenyl) propane), bisphenol F (bis (4-hydroxyphenyl) methane), 1, 1-bis (4-hydroxyphenyl) isobutane, 4,4-dihydroxybenzophenone, 1, 1 Bis (4-hydroxyphenyl) ethane and 1, 5-hydroxynaphthalene.
- Resorcinol catechol, hydroquinone, bisphene ol A (2,2-bis (4-hydroxyphenyl) propane), bisphenol F (bis (4-hydroxypheny
- diglycidyl ethers of ethoxylated resorcinol DGER
- diglycidyl ether of resorcinol catechol
- hydroquinone bisphenol
- bisphenol A bisphenol A
- bisphenol AP (1,1-bis (4-hydroxyphenyl) -1-phenylethane
- bisphenol F bisphenol K
- bisphenol F bisphenol S
- tetramethylbiphenol diglycidyl ethers of alkylene glycols having 2 to 20 carbon atoms and poly (ethylene oxide) or poly (propylene oxide) glycols.
- polyglycidyl ethers of polyhydric alcohols or diamines are suitable epoxy-containing resins. These polyglycidyl ethers are derived from polyhydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,4-butylene glycol, triethylene glycol, 1,5-pentanediol, 1,6-hexanediol or trimethylolpropane.
- epoxy-containing resins are polyglycidyl esters of polycarboxylic acids which are obtainable, for example, by reaction of glycidol or epichlorohydrin with aliphatic or aromatic polycarboxylic acids such as oxalic acid, succinic acid, glutaric acid, terephthalic acid or dimer fatty acid.
- Suitable epoxy group-containing resins are derived from the epoxidation products of olefinically unsaturated cycloaliphatic compounds or natural oils and fats.
- Preferred epoxide group-containing compounds are aromatic glycidyl ethers, in particular diglycidyl ethers, very particularly preferably those based on aromatic glycidyl ether Monomers.
- aromatic glycidyl ethers in particular diglycidyl ethers, very particularly preferably those based on aromatic glycidyl ether Monomers.
- Examples include, without limitation, di- or polyglycidyl ethers of polyhydric phenols which can be obtained by reacting a polyhydric phenol with an excess of chlorohydrin such as epichlorohydrin.
- Such polyhydric phenols include resorcinol, bis (4-hydroxyphenyl) methane (bisphenol F), 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), 2,2-bis (4'-hydroxy-3 ', 5' -dibromophenyl) propane, 1,1,2,2-tetrakis (4'-hydroxyphenyl) ethane or condensates of phenols with formaldehyde obtained under acidic conditions, such as phenol novolacs and cresol novolacs.
- Diglycidyl ethers of bisphenol A are available, for example, as DER 331 (liquid bisphenol A epoxy resin) and DER 332 (diglycidyl ether from bisphenol A) from Dow Chemical Company, Midland, Michigan. Although not specifically mentioned, other epoxy resins available under the trade names DER and DEN from Dow Chemical Company may also be used.
- compositions that are cured with the catalyst compositions described herein include additional ingredients known and customary in the art as such.
- a modified resin can be used which imparts improved impact resistance and low temperature properties to the post cure compositions.
- Modified epoxide group-containing resins of this type are known in the art and include reaction products of epoxy resins having an epoxy functionality of greater than 1 with carboxy-functional rubbers, dimer fatty acids or so-called core / shell polymers, the Cores have a glass transition temperature of below -30 ° C.
- the epoxy group-containing resin in this case is preferably used in a stoichiometric excess and produces an epoxide-functional reaction product.
- the excess of epoxide group-containing resin may also be well above the stoichiometric excess.
- An epoxide functionality of greater than 1 means that the compounds contain more than 1, preferably at least 2, 1, 2-epoxide groups per molecule.
- modified epoxy-containing resins having an epoxide equivalent weight between 150 and 4000 are advantageous.
- epoxy group-containing resins may be modified, for example, with a copolymer of a 1,3-diene or an ethylenically unsaturated co-monomer and / or with core-shell-particles (CSR).
- CSR core-shell-particles
- the to be cured include Therefore, in addition systems one or more of the above-described toughener, in particular selected from modified epoxy resins, Kenr / shell particles (CSR), polyols and liquid rubbers.
- CSR Kenr / shell particles
- the catalyst composition according to the invention is suitable, for example, for epoxy hybrid resins.
- the epoxy group-containing resin may include another polymer such as a polyurethane.
- the catalyst composition is particularly suitable for epoxy / polyurethane hybrid resins. It is particularly advantageous if the hybrid resin also has isocyanate groups in addition to epoxide groups. These can then also be crosslinked in the subsequent curing reaction with the aid of the catalyst composition.
- a corresponding hybrid resin may contain, for example, an epoxy group-containing resin, a polyol and a polyisocyanate.
- Suitable polyols are all polyols known in the art for polyurethane synthesis, but in particular polyether polyols, such as, for example, polypropylene glycol.
- polyisocyanates it is likewise possible to use the known and commercially available polyisocyanates, in particular monomeric polyisocyanates, more preferably diisocyanates.
- the catalyst composition described herein may also be used, in particular, to prepare a cured polymer composition comprising at least one oxazolidinone ring and at least one isocyanurate ring.
- Such production methods include, for example, the steps:
- the invention is also directed to a process for preparing a cured polymer composition comprising at least one oxazolidinone ring and at least one isocyanurate ring, the process comprising the steps of:
- the at least one epoxy resin is used in amounts such that epoxide groups are present equimolar or in molar excess based on the isocyanate groups;
- epoxy / isocyanate resins The resins obtainable in this way are referred to below as epoxy / isocyanate resins.
- the second isocyanate group-containing compound contains one or more isocyanate groups and includes any known and suitable for the purpose of the invention isocyanate and is hereinafter also referred to in part as isocyanate or isocyanate group-containing resin.
- Suitable isocyanate-containing compounds are, in particular, those having 1 to 10, preferably 1 to 2, isocyanate groups per molecule.
- the isocyanate group-containing compound may, in principle, be a saturated, unsaturated, cyclic or acyclic, aliphatic, alicyclic, aromatic or heterocyclic (poly) isocyanate compound.
- isocyanates having a functionality of two or more may be advantageous since such polyisocyanates are useful as crosslinking agents Suitable isocyanate group-containing resins are methylenediphenyl diisocyanate (MDI), toluene-2,4-diisocyanate O-DI), hexamethylene diisocyanate (HDI ), polymeric
- Diphenylmethane diisocyanate (PMDI), isophorone diisocyanate (IPDI), methylene-4,4-bis (cyclohexyl) diisocyanate (H12MDI) and mixtures of the foregoing.
- PMDI isophorone diisocyanate
- IPDI isophorone diisocyanate
- H12MDI methylene-4,4-bis (cyclohexyl) diisocyanate
- H12MDI methylene-4,4-bis (cyclohexyl) diisocyanate
- isocyanate group-containing resins are isocyanates obtainable by reaction of a primary amine with phosgene.
- Suitable isocyanate group-containing resins are resins obtainable by carbonylation of nitro group-containing compounds or primary amines. This carbonylation involves catalytic carbonylation.
- aromatic polyisocyanate monomers in particular aromatic diisocyanates such as MDI and TDI.
- the epoxide group-containing resin reacts with the isocyanate in the presence of the catalyst to form at least one oxazolidinone containing the resins crosslinked together and gives the cured composition, among other things, their advantageous physical properties.
- the at least one oxazolidinone formed upon curing may contain one of 1,2-oxazolidin-3-one, 1,2-oxazolidin-4-one, 1,2-oxazolidin-5-one, 1,3-oxazolidin-2-one , 1, 3-oxazolidin-4-one, or 1, 3-oxazolidin-5-one.
- the cured composition may also contain a plurality of different of the aforementioned oxazolidinone isomers.
- the isocyanate groups react with one another to form at least one isocyanurate which crosslinks the resins together and also contributes to the advantageous properties of the cured composition.
- the catalyst compositions described herein may be combined with the above-described epoxy group-containing resins and optionally other resins or resin components as well as toughening agents in the form of an adhesive composition or an injection resin.
- Such adhesive compositions can contain a variety of other components, all of which are well known to those skilled in the art, including, but not limited to, commonly used adjuvants and additives such as fillers, plasticizers, reactive and / or non-reactive diluents, flow agents , Coupling agents (eg silanes), adhesion promoters, wetting agents, adhesives, flame retardants, wetting agents, thixotropic agents and / or rheological auxiliaries (eg fumed silica), aging and / or corrosion inhibitors, stabilizers and / or dyes.
- the auxiliaries and additives are incorporated in different amounts in the composition.
- the invention therefore also relates to polymer compositions, ie resin compositions containing at least one epoxy group-containing resin as defined above, in particular an epoxy / PU hybrid resin or an epoxy / isocyanate resin, as well as the catalyst composition of the invention.
- This resin composition may be an adhesive composition or an injection resin.
- the injection resin is preferably pumpable and in particular a resin suitable for the RTM process.
- the invention therefore also relates in one embodiment to the moldings obtainable by means of the resin systems according to the invention in the RTM process.
- the RTM processes in which the described resin systems (polymer compositions) can be used are known as such in the prior art and can be readily adapted by the person skilled in the art in such a way that the resins according to the invention can be used.
- the opening times of the resins containing the catalyst systems according to the invention are preferably greater than 90 seconds and more preferably in the range of 2-5 minutes, in particular about 3 minutes. "Approximately" as used herein in connection with a numerical value means the numerical
- the resins cured by the catalyst systems and methods described herein may contain a toughener, and then preferably have a critical stress intensity factor K1 c of> 1.2, more preferably> 1.5
- the glass transition temperature of the resins is, in various embodiments, in the range of 120 to 200 ° C, especially about 170 ° C.
- the elastic modulus of the cured resins is preferably 2 to 3 kN / mm 2 .
- the catalyst composition of the present invention is useful in a process for curing an epoxy group-containing resin, especially an epoxy / polyurethane hybrid resin or an epoxy / isocyanate resin as described above.
- the amount of the catalyst composition can be varied depending on the requirement and the resin to be cured epoxy-containing resin. In one embodiment, from 0.01 to 10% by weight, preferably from 0.05 to 5% by weight, preferably from 0.1 to 2% by weight, of the catalyst composition described here is used to cure an epoxy-group-containing resin, the weights being refer to the total amount of the epoxy group-containing resin.
- the catalyst compositions may be used at different reaction temperatures, for example between 0 ° C and 200 ° C, depending on the requirements of the resin to be cured.
- the curing conditions may include an elevated temperature> 25 ° C, in particular in the range of 60 to 180 ° C, preferably in the range 90 to 150 ° C.
- these temperatures may be selected to activate latent accelerators such as those mentioned above.
- the invention therefore also relates to the use of the catalyst composition according to the invention for curing an epoxy group-containing resin, in particular an epoxy / polyurethane hybrid resin or an epoxy / isocyanate resin.
- the invention is directed to a dosing system comprising (i) an epoxy group-containing resin, in particular an epoxy / polyurethane hybrid resin or epoxy / isocyanate resin, and (ii) the catalyst composition of the invention, wherein the catalyst and the resin in separate containers are included and wherein the dosing preferably further comprises a dosing device.
- Dosing can be achieved with manually operated dosing systems or with fully automatic dosing systems. Examples of such systems are automated volume double gear pumps, twin screw pump dispensers and drum pump systems.
- the present invention relates to the cured composition obtainable by the methods described herein. These may, depending on the method, be present as a molded part, in particular as a fiber-reinforced plastic molded part. Such moldings are preferably used in the automotive industry.
- First DER331 (Dow Chemical, liquid epoxide resin from epichlorohydrin and bisphenol A) and PPG2000 (Bayer, polypropylene glycol with Mw 2000) are mixed for 60 s at 2000 rpm in a vacuum in the Speedmixer.
- the imidazolium salt is added and again mixed in the speed mixer for 30 s at 2000 rpm in a vacuum.
- the nonionic base is added again mixed for 30 s at 2000 U / min.
- the imidazolium salt and the base are used in a weight ratio of 1: 1.
- the concentrations given in the table refer to the sum of both catalysts relative to the total weight of the reaction mixture.
- Directly Desmodur Vk 5 (Bayer, mixture of monomeric polyisocyanates) is added and finally mixed again for 30 s at 2000 U / min in vacuo.
- the resulting resin composition contains 55% epoxy, 5% polyol and 45% isocyanate.
- reaction mixture is poured into an upright mold and gelled at RT. Thereafter, the mixture is cured in two stages (1 h at 90 ° C and 1 h at 150 ° C). After cooling, the specimens required for the mechanical tests are milled from the resulting plate.
- the reaction mixture is stored at RT and the gel time is determined manually.
- the results of the experiments are summarized in Tables 1 and 2.
- the mechanical properties were determined in a 200g batch: tensile test according to EN-ISO 527; 3-point bend according to EN-ISO 178; Fracture toughness according to IOS 13586; Tg by DMTA.
- the pot life (open time) was determined at RT in the 10 g batch.
- Tg tan delta 123
- Tg tan delta 183 no plate with 1% Kat plate with 1% Kat mixture with 1% plate with 1% cat
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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)
- Polyurethanes Or Polyureas (AREA)
- Epoxy Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201580070007.3A CN107108859B (zh) | 2014-12-22 | 2015-12-18 | 用于固化含有环氧基的树脂的催化剂组合物 |
| KR1020177020462A KR102510717B1 (ko) | 2014-12-22 | 2015-12-18 | 에폭시기를 함유하는 경화 수지를 위한 촉매 조성물 |
| MX2017008268A MX2017008268A (es) | 2014-12-22 | 2015-12-18 | Composicion de catalizador para curar resinas que contienen grupos epoxi. |
| JP2017551005A JP6762315B2 (ja) | 2014-12-22 | 2015-12-18 | エポキシ基を含有する樹脂を硬化するための触媒組成物 |
| CA2971527A CA2971527A1 (en) | 2014-12-22 | 2015-12-18 | Catalyst composition for curing resins containing epoxy groups |
| BR112017013260-5A BR112017013260A2 (pt) | 2014-12-22 | 2015-12-18 | composição de catalisador para a cura de resinas contendo grupos de epóxi |
| EP15813839.6A EP3237479A1 (de) | 2014-12-22 | 2015-12-18 | Katalysator-zusammensetzung zur härtung von epoxidgruppen-haltigen harzen |
| US15/624,944 US10787536B2 (en) | 2014-12-22 | 2017-06-16 | Catalyst composition for curing resins containing epoxy groups |
| ZA2017/04975A ZA201704975B (en) | 2014-12-22 | 2017-07-21 | Catalyst composition for curing resins containing epoxy groups |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014226842.7 | 2014-12-22 | ||
| DE102014226842.7A DE102014226842A1 (de) | 2014-12-22 | 2014-12-22 | Katalysator-Zusammensetzung zur Härtung von Epoxidgruppen-haltigen Harzen |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/624,944 Continuation US10787536B2 (en) | 2014-12-22 | 2017-06-16 | Catalyst composition for curing resins containing epoxy groups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016102358A1 true WO2016102358A1 (de) | 2016-06-30 |
Family
ID=54979684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/080469 Ceased WO2016102358A1 (de) | 2014-12-22 | 2015-12-18 | Katalysator-zusammensetzung zur härtung von epoxidgruppen-haltigen harzen |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US10787536B2 (de) |
| EP (1) | EP3237479A1 (de) |
| JP (1) | JP6762315B2 (de) |
| KR (1) | KR102510717B1 (de) |
| CN (1) | CN107108859B (de) |
| BR (1) | BR112017013260A2 (de) |
| CA (1) | CA2971527A1 (de) |
| DE (1) | DE102014226842A1 (de) |
| MX (1) | MX2017008268A (de) |
| WO (1) | WO2016102358A1 (de) |
| ZA (1) | ZA201704975B (de) |
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| EP3260481A1 (de) * | 2016-06-20 | 2017-12-27 | Henkel AG & Co. KGaA | Gehärtete zusammensetzung mit hoher schlagfestigkeit und temperaturbeständigkeit, basierend auf einem epoxidharz und einem polyisocyanat |
| EP3323843A1 (de) * | 2016-11-22 | 2018-05-23 | Henkel AG & Co. KGaA | Härtbares epoxid/polyurethan hybridharzsystem für smcs |
| CN110300772A (zh) * | 2017-02-16 | 2019-10-01 | 巴斯夫欧洲公司 | 聚噁唑烷酮及其制法 |
| WO2021100649A1 (ja) | 2019-11-18 | 2021-05-27 | 東レ株式会社 | 繊維強化複合材料の成形方法、およびそれに用いられるエポキシ樹脂組成物 |
| WO2022138432A1 (ja) | 2020-12-21 | 2022-06-30 | 東レ株式会社 | 熱硬化性エポキシ樹脂組成物とその成形品、繊維強化複合材料、繊維強化複合材料用成形材料、および繊維強化複合材料の製造方法 |
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| DE102016124075A1 (de) * | 2016-12-12 | 2018-06-14 | Fischerwerke Gmbh & Co. Kg | Hybridbindemittel sowie dessen Verwendung |
| CA3075364A1 (en) * | 2017-10-27 | 2019-05-02 | Huntsman International Llc | Catalysts for making oxazolidinone materials |
| WO2019206416A1 (en) * | 2018-04-26 | 2019-10-31 | Henkel Ag & Co. Kgaa | A quaternary nitrogen compound for use as a latent catalyst in curable compositions |
| JP7512249B2 (ja) * | 2018-07-18 | 2024-07-08 | ビーエーエスエフ ソシエタス・ヨーロピア | ポリオキサゾリドンのバルク重合 |
| JPWO2022124191A1 (de) * | 2020-12-08 | 2022-06-16 | ||
| CN118240514B (zh) * | 2023-11-16 | 2025-10-17 | 比亚迪股份有限公司 | 一种环氧树脂胶及其制备方法、复合膜 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3260481A1 (de) * | 2016-06-20 | 2017-12-27 | Henkel AG & Co. KGaA | Gehärtete zusammensetzung mit hoher schlagfestigkeit und temperaturbeständigkeit, basierend auf einem epoxidharz und einem polyisocyanat |
| EP3323843A1 (de) * | 2016-11-22 | 2018-05-23 | Henkel AG & Co. KGaA | Härtbares epoxid/polyurethan hybridharzsystem für smcs |
| WO2018095895A1 (de) * | 2016-11-22 | 2018-05-31 | Henkel Ag & Co. Kgaa | Härtbares epoxid/polyurethan hybridharzsystem für smcs |
| CN110300772A (zh) * | 2017-02-16 | 2019-10-01 | 巴斯夫欧洲公司 | 聚噁唑烷酮及其制法 |
| KR20190112270A (ko) * | 2017-02-16 | 2019-10-04 | 바스프 에스이 | 폴리옥사졸리돈 및 이의 제법 |
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| CN110300772B (zh) * | 2017-02-16 | 2022-04-26 | 巴斯夫欧洲公司 | 聚噁唑烷酮及其制法 |
| JP7317707B2 (ja) | 2017-02-16 | 2023-07-31 | ビーエーエスエフ ソシエタス・ヨーロピア | ポリオキサゾリドン及びその製造方法 |
| KR102587180B1 (ko) | 2017-02-16 | 2023-10-06 | 바스프 에스이 | 폴리옥사졸리돈 및 이의 제법 |
| WO2021100649A1 (ja) | 2019-11-18 | 2021-05-27 | 東レ株式会社 | 繊維強化複合材料の成形方法、およびそれに用いられるエポキシ樹脂組成物 |
| WO2022138432A1 (ja) | 2020-12-21 | 2022-06-30 | 東レ株式会社 | 熱硬化性エポキシ樹脂組成物とその成形品、繊維強化複合材料、繊維強化複合材料用成形材料、および繊維強化複合材料の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3237479A1 (de) | 2017-11-01 |
| CN107108859A (zh) | 2017-08-29 |
| US10787536B2 (en) | 2020-09-29 |
| KR20170098908A (ko) | 2017-08-30 |
| ZA201704975B (en) | 2019-07-31 |
| DE102014226842A1 (de) | 2016-06-23 |
| US20170283543A1 (en) | 2017-10-05 |
| BR112017013260A2 (pt) | 2018-01-09 |
| CN107108859B (zh) | 2020-06-16 |
| KR102510717B1 (ko) | 2023-03-16 |
| JP6762315B2 (ja) | 2020-09-30 |
| CA2971527A1 (en) | 2016-06-30 |
| JP2018504510A (ja) | 2018-02-15 |
| MX2017008268A (es) | 2017-10-02 |
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