Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • 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
  • C08G59/40—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 curing agents used
  • C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
  • C08G59/4014—Nitrogen containing compounds
  • C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
• • 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
• • 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
  • C08G59/40—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 curing agents used
  • C08G59/50—Amines
• • 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
  • C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
  • C08G83/002—Dendritic macromolecules
  • C08G83/005—Hyperbranched macromolecules
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
  • C08L79/02—Polyamines

Definitions

• the present invention relates to the use of highly branched polymers or oligomers having terminal primary and / or secondary amino groups as curing agents for epoxy resins. Furthermore, the invention relates to a composition containing such polymers or oligomers, an uncured or partially cured epoxy resin and optionally at least one conventional epoxy resin curing agent, and a cured epoxy resin obtainable by curing these components. Finally, the invention relates to a method for curing epoxy resins in which an uncured or only partially cured epoxy resin with at least one polymer or oligomer as defined above, and optionally with at least one conventional hardeners for epoxy resins to a temperature of 5 to 150 to 0 C brings or exposes microwave radiation.
• Cured epoxy resins are widely used because of their excellent mechanical and chemical properties, such as high impact strength, high abrasion resistance, good chemical resistance, excellent adhesion to many materials and high electrical insulation capacity. They serve as a matrix for composites and are often the main component in electrical laminates, structural adhesives, casting resins and powder coatings.
• epoxy resins has several meanings and denotes, on the one hand, prepolymers which contain two or more epoxide groups (in which part of the epoxide groups the oxirane group may also be opened to a hydroxyl group), or compositions containing these prepolymers.
• the term also refers to partially or fully cured epoxy resins, ie epoxy resins which have been crosslinked by means of suitable curing agents.
• the term also refers to modified epoxy resins, such as esterified or etherified epoxy resins, which are obtainable for example by reaction with carboxylic acids or alcohols.
• epoxy resins generally also includes compositions containing (partially) cured and / or modified epoxy resins.
• compositions containing uncured, partially cured and / or fully cured epoxy resins are, for example, so-called compounded epoxy resins, ie epoxy resins mixed with suitable additives, for example formulations which, in addition to the epoxy resin curing agent (if the epoxy resin is uncured or partially cured) and optionally other additives such as flame retardants, antioxidants, stabilizers and the like.
• suitable additives for example formulations which, in addition to the epoxy resin curing agent (if the epoxy resin is uncured or partially cured) and optionally other additives such as flame retardants, antioxidants, stabilizers and the like.
• the compositions may also be composites.
• a complete definition of the term "epoxy resins” can be found, for example, in Mann's Encyclopedia of Industrial Chemistry, 5th Edition on CD-ROM, 1997, Wiley-VCH, chapter "Epoxy Resins”.
• epoxy resin is used for uncured or partially cured epoxy resins (prepolymers). If it is intended to refer to fully cured or modified epoxy resins or to epoxy resin-containing compositions, this will be specified at the relevant location.
• Hardeners are also referred to as crosslinking agents. These are compounds which convert the epoxy resin prepolymer into non-meltable, three-dimensional, "crosslinked", thermoset structures when sufficiently reacted.
• crosslinking agents There are basically two types of curing agents for epoxy resins: The first type is at least difunctional compounds whose functional groups can react covalently with the oxirane or hydroxyl groups of the epoxy resins and partially or completely crosslink the prepolymer.
• the second type which is often referred to as an initiator or accelerator, catalyzes the homopolymerization of the epoxy resins. Initiators and accelerators are sometimes also added to the first type of hardener to accelerate crosslinking.
• Suitable functional groups which can undergo a condensation reaction with the oxirane groups of the epoxy resins are, for example, amino groups, hydroxyl groups and carboxyl groups or derivatives thereof, such as anhydrides. Accordingly, aliphatic and aromatic polyamines, carboxylic anhydrides, polyamidoamines, aminoplasts or phenoplasts are usually used as hardeners for epoxy resins. Known hardeners have a linear or at most weakly crosslinked structure. They are described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition on CD-ROM, 1997, Wiley-VCH, Chapter "Epoxy Resins", which is hereby incorporated by reference in its entirety.
• the first group are low molecular weight amines, such as diethylenetriamine, triethylenetetramine, Jeff amines, m-phenylenediamine, 4,4'-methylenedianiline (MDA) or bis (4-aminophenyl) sulfone (DADS, DDS or dapsone). They are low viscosity, have a high amine number and a high density of functional groups by weight or unit of volume, resulting in products with a high network density.
• MDA 4,4'-methylenedianiline
• DADS bis (4-aminophenyl) sulfone
• the aliphatic amines are also very reactive and partially react even below room temperature (25 0 C). But their volatility, their unpleasant odor and their toxicity are disadvantageous.
• the reactivity of the aliphatic amines is often too high, so that the crosslinking process is not controlled.
• the reactivity of aromatic amines is often too low, so that at high temperatures and with long reaction times. must be networked, which is of course not desirable from an economic point of view.
• the second group consists of high molecular weight amines, usually polymers containing amino functions, such as amido-polyamines or polyesters with terminal amino groups. These polymers have the above-mentioned. Although the disadvantages of the low molecular weight amines are not apparent, they also lead to products with a significantly lower network density due to their significantly lower density of reactive functional groups. High network density, however, is crucial for the mechanical and thermal stability of epoxy resin based products.
• the object of the present invention was therefore to provide hardeners for epoxy resins, which combine the advantages of the prior art hardeners and at the same time avoid the disadvantages which thus lead to cured epoxy resins with a high network density and are sufficiently reactive that the crosslinking be carried out at low temperatures and in acceptable reaction times, but at the same time non-volatile, not malodorous and non-toxic, but preferably still low viscosity as possible.
• the object has been achieved by the use of highly branched, high-functionality polymers having primary and / or secondary amino groups as terminal groups of the main or side chains and of oligomers having primary and / or secondary amino groups, as curing agents for epoxy resins.
• the invention relates to the use of condensation products which are selected from
• (iv-2) at least one amine having at least two primary and / or secondary amino groups; wherein at least one carboxylic acid must contain at least three carboxyl groups or carboxyl group derivatives or at least one amine must contain at least three primary and / or secondary amino groups;
• (v) oligomeric compounds obtainable by the condensation of (v-1) urea or at least one urea derivative with
• (v-2) at least one amine having at least two primary and / or secondary amino groups, wherein at least one amine must contain at least three primary and / or secondary amino groups;
• (vi-2) at least one amine having at least two primary and / or secondary amino groups other than melamine;
• terminal amino groups Due to the higher nucleophilicity, "real" amino groups as terminal groups can react faster; however, this is not always desirable; eg if lower degrees of crosslinking are set that should.
• the choice of terminal amino groups depends on the specific application target and can be determined by the skilled person in each case.
• the setting of the terminal amino groups is carried out by the preparation process, in particular by the stoichiometry of the monomers to be polymerized and / or by the order of addition to the polymerization reaction.
• polymer is understood broadly and includes polymers, polyadducts and polycondensates, i. he does not specify the way in which the propagation of the chain runs. Most commonly, it refers to polycondensates in the present invention.
• Highly branched polymers are understood in the context of the present invention polymers having a branched structure and a high functionality, i. a high density of functional groups.
• highly branched polymers reference is made to PJ. Flori, J. Am. Chem. Soc., 1952, 74, 2718, and H. Frey et al., Chem. Eur. J., 2000, 6, No. 14, 2499.
• star polymers include star polymers, dendrimers, structurally and molecularly nonuniform highly branched polymers, and various high molecular weight branched polymers such as comb polymers.
• Star polymers are those polymers in which three or more chains emanate from one center.
• the center may be a single atom or a group of atoms.
• Dendrimers (cascade polymers) are molecularly uniform polymers with a highly symmetric structure. They are structurally derived from star polymers, with their chains again branching like stars. Dendrimers are made from small molecules through repeated reaction sequences. The number of monomer end groups grows exponentially with each reaction step, resulting in a spherical, tree-like structure. Due to their uniform structure, dendrimers have a uniform molecular weight.
• the present invention preferably uses highly branched polymers other than dendrimers, i. which are both structurally and molecularly non-uniform (and thus have no uniform molecular weight, but a molecular weight distribution).
• highly branched polymers other than dendrimers i. which are both structurally and molecularly non-uniform (and thus have no uniform molecular weight, but a molecular weight distribution).
• they may be based on the one hand, starting from a central molecule analogous to dendrimers, but with nonuniform chain length of the branches.
• they can also start from linear molecules and be built up with branched functional side groups.
• “Highly branched” in the context of the present invention also means that the degree of branching (DB) is 10 to 99.9%, preferably 20 to 99% and in particular from 20 to 95%.
• the degree of branching is the mean number of dendritic linkages plus the average number of end groups per molecule, divided by the sum of the average number of dendritic linkages.
• the term “dendritic” is understood to mean that the degree of branching at this point in the molecule is 99.9 to 100%. To define the degree of branching, see also H. Frey et al., Acta. Polym. 1997, 48, 30.
• the highly branched polymers used according to the invention are essentially not crosslinked.
• “Substantially non-crosslinked” or “uncrosslinked” in the sense of the present invention means that a degree of crosslinking of less than 15 wt .-%, preferably less than 10 wt .-% is present, wherein the degree of crosslinking over the insoluble portion of the polymer is determined.
• the insoluble portion of the polymer is, for example, by extraction for 4 hours with the same solvent as used for gel permeation chromatography (GPC), that is, preferably dimethylacetamide or hexafluoroisopropanol, depending on the solvent in which the polymer is more soluble Soxhlet apparatus and, after drying the residue to constant weight, weighing the remaining residue determined.
• GPC gel permeation chromatography
• the highly branched polymers used according to the invention preferably have a number average molecular weight M n of at least 500, eg from 500 to 200,000 or preferably from 500 to 100,000 or more preferably from 500 to 50,000 or more preferably from 500 to 30,000 or even more preferably from 500 to 20,000 or in particular from 500 to 10,000; more preferably of at least 750, eg from 750 to 200,000 or preferably from 750 to 100,000 or more preferably from 750 to 50,000 or more preferably from 750 to 30,000 or even more preferably from 750 to 20,000 or in particular from 750 to 10,000; and in particular of at least 1000, for example from 1000 to 200,000 or preferably from 1000 to 100,000 or more preferably from 1000 to 50,000 or more preferably from 1000 to 30,000 or even more preferably from 1000 to 20,000 or in particular from 1000 to 10,000.
• M n number average molecular weight M n of at least 500, eg from 500 to 200,000 or preferably from 500 to 100,000 or more preferably from 500 to 50,000 or more preferably from
• the highly branched polymers used according to the invention preferably have a weight-average molecular weight M w of at least 1000, eg from 1000 to 500,000 or preferably from 1000 to 200,000 or more preferably from 1000 to 100,000 or more preferably from 1000 to 60,000 or even more preferably from 1000 to 40,000 or in particular from 1000 to 20,000; more preferably from at least 1500, for example from 1500 to 500,000 or preferably from 1500 to 200,000 or more preferably from 1500 to 100,000 or more preferably from 1500 to 60,000 or even more preferably from 1500 to 40,000 or especially from 1500 to 20,000; and in particular of at least 2000, for example from 2000 to 500,000 and preferably from 2000 to 200,000 or more preferably from 2000 to 100,000 or more preferably from 2000 to 60,000 or even more preferably from 2000 to 40,000, or more preferably from 2000 to 20,000.
• M w weight-average molecular weight M w of at least 1000, eg from 1000 to 500,000 or preferably from 1000 to 200,000 or more preferably from 1000 to 100,000 or more preferably from 1000 to
• M n , Mw molecular weights
• polydispersity refers to values which are determined by gel permeation chromatography (GPC) in a suitable solvent, such as hexafluoroisopro panol, tetrahydrofuran, N, N-dimethylacetamide or water, with PMMA calibration.
• GPC gel permeation chromatography
• the oligomeric compounds (v) and (vi) are low molecular weight products obtained by the condensation of a few molecules, preferably 2, 3, 4 or 5 molecules, more preferably 2, 3 or 4 Molecules are formed and have a defined molecular weight.
• the oligomeric compounds (v) are formed by the condensation of a urea molecule or a urea derivative with one or two amine molecules.
• the oligomeric compounds (vi) are formed, for example, by the condensation of a melamine molecule with one, two or three amine molecules.
• Ci-C4-alkyl is a linear or branched alkyl radical having 1 to 4 carbon atoms. These are methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl and tert-butyl.
• Linear Ci-C 4 -AlkVl represents a linear alkyl radical having 1 to 4 carbon atoms. These are methyl, ethyl, n-propyl and n-butyl.
• C 2 -C 6 -alkyl is a linear or branched alkyl radical having 2 to 6 carbon atoms. Examples are ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, pentyl, neopentyl, hexyl and their constitution isomers.
• amine II see below carries the C 2 -C 6 -alkyl radical three substituents Ei-NHR d , E 2 -NHR e and E 3 -NHR f .
• the C 2 -Ce-AIkVl in this case is a C 2 -C ⁇ alkanetriyl radical.
• Examples are ethane-1,1,1-triyl, ethane-1,2,2-triyl, propane-1,1,1-triyl, propane-1,2,2-triyl, propane-1,1, 3-triyl, propane-1, 2,2-triyl, propane-1, 2,3-triyl, butane-1, 1, 1-triyl, butane-1, 1, 2-triyl, butane-1, 2, 2-triyl, butane-1, 1, 3-triyl, butane-1, 3,3-triyl, butane-1, 1, 4-triyl, butane-1, 2,3-triyl, butane-1, 2, 4-triyl and the like.
• radicals Ei, E 2 and E 3 are C 1 -C 10 -alkylene, may two or all three of the abovementioned radicals be on the same carbon atom. be bound to the alkylene of the alkanetriyl radical; otherwise they are preferably attached to different carbon atoms.
• C 1 -C 10 -alkyl is a linear or branched alkyl radical having 1 to 10 carbon atoms. Examples of these are methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, pentyl, neopentyl, hexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, 2-propylheptyl and their constitutional isomers.
• Ci-Ci2-alkyl is a linear or branched alkyl radical having 1 to 12 carbon atoms. Examples of these are methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, pentyl, neopentyl, hexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, 2-propylheptyl, 4 Methyl 2-propylhexyl, undecyl, dodecyl and their constitutional isomers.
• C 1 -C 20 -alkyl is a linear or branched alkyl radical having 1 to 20 carbon atoms. Examples thereof are, in addition to the radicals mentioned for C 1 -C 12 -alkyl, tricycde, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl and their constitutional isomers.
• C 2 -C 10 alkenyl is a monounsaturated aliphatic hydrocarbon radical having 2 to 10 carbon atoms.
• these are ethenyl, 1-propenyl, 2-propenyl, 1-methylethenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 1-methyl-2 -propenyl, 2-methyl-2-propenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-methyl-1-butenyl, 2-methyl-1-butenyl, 3-methyl-1-butenyl , 1-methyl-2-butenyl, 2-methyl-2-butenyl, 3-methyl-2-butenyl, 1-methyl-3-butenyl, 2-methyl-3-butenyl, 3-methyl-3-butenyl, 1 , 1-dimethyl-2-propenyl, 1, 2-dimethyl-1-propenyl, 1, 2-
• Aryl represents a carbocyclic aromatic radical having 6 to 14 carbon atoms, such as phenyl, naphthyl, anthracenyl or phenanthrenyl.
• Aryl is preferably phenyl or naphthyl and in particular phenyl.
• Aryl-Ci-C4-alkyl is Ci-C4-alkyl, which is as defined above, wherein a hydrogen atom is replaced by an aryl group. Examples are benzyl, phenethyl and the like.
• C 1 -C 4 -alkylene is a linear or branched divalent alkyl radical having 1, 2, 3 or 4 carbon atoms. Examples are -CH 2 -, -CH 2 CH 2 -, -CH (CH 3 ) -, -CH 2 CH 2 CH 2 -, -CH (CH 3 ) CH 2 -, -CH 2 CH (CH 3 ) - , -C (CH 2 ) 2 -, -CH 2 CH 2 CH 2 CH 2 -, -CH (CH 3 ) CH 2 CH 2 -, -CH 2 CH 2 CH (CH 3 ) -, -C (CH 2 ) 2 CH 2 -, -CH 2 C (CHs) 2 - and -CH 2 CH 2 CH 2 CH 2 CH 2 -.
• Linear or branched C 2 -Cs-alkylene is a linear or branched divalent alkyl radical having 2, 3, 4 or 5 carbon atoms. Examples are -CH 2 CH 2 -, -CH (CH 3 ) -, -CH 2 CH 2 CH 2 -, -CH (CH 3 ) CH 2 -, -CH 2 CH (CH 3 ) -, -C (CHs ) 2 -, -CH 2 CH 2 CH 2 CH 2 -, -CH (CH 3 ) CH 2 CH 2 -, -CH 2 CH 2 CH (CHs) -, -C (CH 2 ) 2 CH 2 -, -CH 2 C (CHs) 2 - and -CH 2 CH 2 CH 2 CH 2 CH 2 -.
• Linear or branched C 2 -C 6 -alkylene is a linear or branched divalent alkyl radical having 2, 3, 4, 5 or 6 carbon atoms. Examples are, in addition to the radicals mentioned above for C 2 -C 5 -alkylene -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -.
• Linear or branched C4-Cs-alkylene is a linear or branched divalent alkyl radical having 4 to 8 carbon atoms. Examples are -CH 2 CH 2 CH 2 CH 2 -, -CH (CH 3 ) CH 2 CH 2 -, -CH 2 CH 2 CH (CHs) -, -C (CH 2 ) 2 CH 2 -, -CH 2 C (CHs) 2 -, -CH 2 CH 2 CH 2 CH 2 CH 2 -, -CH 2 C (CH 2 ) 2 CH 2 -, -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -, -CH 2 C (CH 2 ) 2 CH 2 -, -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -, - (CH 2 ) 7 , - (CH 2 ) ⁇ - and positional isomers thereof.
• Linear or branched C 2 -C 10 -alkylene is a linear or branched divalent alkyl radical having 2 to 10 carbon atoms.
• Examples are, in addition to the radicals mentioned above for C 2 -C 5 -alkylene, the higher homologues having 6 to 10 carbon atoms, such as hexylene, heptylene, octylene, nonylene and decylene.
• Linear or branched C 1 -C 10 -alkylene is a linear or branched divalent alkyl radical having 1 to 10 carbon atoms. Examples are in addition to the previously mentioned in C2-C10 alkylene radicals still methylene (-CH 2 -).
• Linear or branched C 2 -C 2 O-Al kylene is a linear or branched divalent alkyl radical having 2 to 20 carbon atoms.
• Examples are, in addition to the radicals mentioned above for C 2 -C 5 -alkylene, the higher homologues having 6 to 20 carbon atoms, such as hexylene, heptylene, octylene, nonylene, decylene, undecylene, dodecylene, tridecylene, Tetradecylene, pentadecylene, hexadecylene, heptadecylene, octadecylene, nonadecylene and eicosylene.
• Alkenylene is a linear or branched aliphatic one or more times, e.g. one or two times, olefinically unsaturated bivalent radical having for example 2 to 20 or 2 to 10 or 4 to 8 carbon atoms.
• residue contains more than one carbon-carbon double bond, they are preferably not vicinal, i. not allish.
• Alkynylene is a linear or branched aliphatic divalent radical of, for example, 2 to 20 or 2 to 10 or 4 to 8 carbon atoms, containing one or more, e.g. Contains 1 or 2 carbon-carbon triple bonds ,.
• C5-C8 cycloalkylene is a divalent monocyclic saturated hydrocarbon group of 5 to 8 carbon ring members.
• Examples are cyclopentane-1, 2-diyl, cyclopentane-1, 3-diyl, cyclohexane-1, 2-diyl, cyclohexane-1, 3-diyl, cyclohexane-1, 4-diyl, cycloheptane-1, 2-diyl, Cycloheptane-1, 3-diyl, cycloheptane-1, 4-diyl, cyclooctane-1, 2-diyl, cyclooctane-1, 3-diyl, cyclooctane-1, 4-diyl and cyclooctane-1, 5-diyl.
• pyrrolin-1-yl pyrazolin-1-yl, imidazoline-1, bonded via N-bonded 5- or 6-membered unsaturated non-aromatic heterocycle, which may additionally contain one or two further nitrogen atoms or another sulfur atom or oxygen atom as ring member.
• N-linked 5- or 6-membered unsaturated aromatic heterocycle which may additionally contain a further nitrogen atom as ring member, is 5-membered and is, for example, pyrrol-1-yl, pyrazol-1-yl, imidazol-1-yl and triazole -1-yl.
• 5- or 6-membered saturated, partially unsaturated or aromatic heterocycle containing 1, 2 or 3 heteroatoms selected from N, O and S, as a ring member is, for example, 2-tetrahydrofuranyl, 3-tetrahydrofuranyl, 2- Tetrahydrothienyl, 3-tetrahydrothienyl, 1-pyrrolidinyl, 2-pyrrolidinyl, 3-pyrrolidinyl, 2-
• a primary amino group is meant a radical -Nhb.
• a secondary amino group is meant a radical -NHR, where R is other than H.
• composition and epoxy resins in particular to the condensation products used according to the invention and the monomers and other reaction components which are the subject of the present invention apply both alone and in particular in every possible combination with one another.
• the urea derivatives of the components (i-1) and (v-1) are preferably selected from
• R 1 R 2 NC (OO) -NR 3 R 4 substituted ureas of the formula R 1 R 2 NC (OO) -NR 3 R 4 , wherein R 1 , R 2 , R 3 and R 4 are independently selected from hydrogen,
• R 5 , R 6 , R 7 and R 8 are independently selected from hydrogen
• Cs-alkylene stand.
• R 2 and R 4 are hydrogen and R 1 and R 3 are the same or different and are C 1 -C 12 -alkyl, aryl or aryl-C 1 -C 4 -alkyl.
• R 1 , R 2 , R 3 and R 4 are identical and stand for linear C 1 -C 4 -alkyl. Examples of these are N, N, N ', N'-tetramethylurea and N, N, N', N'-tetraethylurea.
• R 1 and R 2 and R 3 and R 4 are each in each case taken together as C 2 -C 8 -alkylene, where a methylene group (Chb) in the alkylene chain may be replaced by a carbonyl group (CO); that is, R 1 and R 2 together form a C 2 -C 8 -alkylene group in which a methylene group (Chb) in the alkylene chain may be replaced by a carbonyl group (CO), and R 3 and R 4 together form a C 2 -C 8 Alkylene group in which a methylene group (Chb) in the alkylene chain may be replaced by a carbonyl group (CO).
• Examples thereof are di (tetrahydro-1H-pyrrol-1-yl) -methanone, bis (pentamethylene) urea and carbonylbis- caprolactam.
• R 2 and R 4 are hydrogen and R 1 and R 3 together form a C 2 -C 8 -alkylene group, where a methylene group may be replaced by a carbonyl group. Examples of these are ethyleneurea and 1, 2 or 1, 3-propyleneurea.
• R 1 and R 2 and R 3 and R 4 together with the nitrogen atom to which they are attached form an unsaturated aromatic or non-aromatic heterocycle as defined above.
• examples of these are carbonyldipyrazole and carbonyldiimidazole.
• R 6 and R 8 are hydrogen and R 5 and R 7 are the same or different and are C 1 -C 2 -alkyl, aryl or aryl-C 1 -C 4 -alkyl.
• R 5 , R 6 , R 7 and R 8 are identical and stand for linear C 1 -C 4 -alkyl. Examples of these are N, N, N ', N'-tetramethylthiourea and N, N, N', N'-tetraethylthiourea.
• R 5 and R 6 and R 7 and R 8 are each in each case taken together as C 2 -C 8 -alkylene, where a methylene group (CH 2) in the alkylene chain may be replaced by a carbonyl group (CO); that is, R 5 and R 6 together form a C 2 -C 8 -alkylene group in which a methylene group (Chb) in the alkylene chain may be replaced by a carbonyl group (CO), and R 7 and R 8 together form a C 2 -C 8 Alkylene group in which a methylene group (Chb) in the alkylene chain may be replaced by a carbonyl group (CO).
• Examples thereof are di- (tetrahydro-1H-pyrrol-1-yl) -methanthione, bis (pentamethylene) thiourea and thiocarbonylbiscaprolactam.
• R 6 and R 8 are hydrogen and R 5 and R 7 together form a C 2 -C 8 -alkylene group, where a methylene group may be replaced by a thiocarbonyl group.
• Examples include ethylene thiourea and 1, 2 or 1, 3-propylene thiourea.
• R 5 and R 6 and R 7 and R 8 together with the nitrogen atom to which they are attached form an unsaturated aromatic or non-aromatic heterocycle as defined above.
• examples of these are thiocarbonyldipyrazole and thiocarbonyldiimidazole.
• Guanidine may also be used in the form of a guanidine salt, such as guanidine nitrate or guanidine carbonate in particular.
• R 10 , R 11 and R 13 are hydrogen and R 9 and R 12 are identical or different and are C 1 -C 12 -alkyl, aryl or aryl-C 1 -C 4 -alkyl.
• R 9 , R 10 , R 12 and R 13 are the same and are linear CrC 4 -AlkVl and R 11 is H or methyl and especially H. Examples of these are N, N, N ', N '-Tetramethylguanidine and N, N, N', N'-tetraethylguanidine.
• R 9 and R 10 and R 12 and R 13 are each, in each case, C 2 -C 8 -alkylene, where one methylene group (Chb) may be replaced by a carbonyl group (CO); that is, R 9 and R 10 together form a C 2 -C 5 -alkylene group in which a methylene group (Chb) may be replaced by a carbonyl group (CO), and R 12 and R 13 together form a C 2 -C 5 -alkylene group, in which one methylene group (Chb) can be replaced by a carbonyl group (CO), and R 11 is H or methyl and especially H. Examples of these are di- (tetrahydro-1H-pyrrol-1-yl) - imine, bis (pentamethylene) guanidine and iminobiscaprolactam.
• R 10 , R 11 and R 13 are hydrogen and R 9 and R 12 together form a C 2 -C 8 -alkylene group, where a methylene group may optionally be replaced by a carbonyl group.
• R 9 and R 12 are hydrogen and R 9 and R 12 together form a C 2 -C 8 -alkylene group, where a methylene group may optionally be replaced by a carbonyl group. Examples of these are ethylguanidine and 1, 2 or 1, 3-Propylenguanidin.
• R 9 and R 10 and R 12 and R 13 together with the nitrogen atom to which they are attached form an unsaturated aromatic or non-aromatic heterocycle as defined above, and R 11 is H or methyl and especially for H.
• R 11 is H or methyl and especially for H. Examples of these are iminodipyrazole and iminodiimidazole.
• R 14 and R 15 are C 1 -C 4 -alkyl. Particularly preferably, both radicals are identical. Examples of these are dimethyl carbonate, diethyl carbonate, dipropyl carbonate, diisopropyl carbonate, di-n-butyl carbonate, di-sec-butyl carbonate, diisobutyl carbonate and di-tert-butyl carbonate. Preferred here are dimethyl carbonate and diethyl carbonate.
• R 14 and R 15 together are C 2 -C 6 -alkylene and preferably C 2 -C 3 -alkylene.
• Examples of such carbonates are ethylene carbonate and 1, 2 and 1, 3-propylene carbonate.
• the substituted ureas, thiourea, the substituted thioureas, guanidine, the substituted guanidines, and the carbonic esters are preferred. More preferred are the substituted ureas, thiourea, guanidine and the carbonic acid esters.
• thio are preferred urea, N, N'-dimethylurea, N, N'-diethylurea, N, N'-di-n-butyl urea, N 1 N 1 - Diisobutylharnstoff, N, N, N ', N'-tetramethylurea Guanidine, especially in the form of guanidine carbonate, dimethyl carbonate, diethyl carbonate, ethylene carbonate and 1,2-propylene carbonate. Even more preferred are the substituted ureas, thiourea and the carbonic acid esters. Preferred among these are thiourea, N 1 N 1 -dimethylurea, N, N'-diethylurea, N, N'-di-n-butylurea, N 1 N 1 -
• Diisobutylurea, N, N, N ', N'-tetramethylurea dimethyl carbonate, diethyl carbonate, ethylene carbonate and 1,2-propylene carbonate.
• component (i-1) urea or a substituted urea of the formula R 1 R 2 NC (OO) -NR 3 R 4 , in which R 1 , R 2 , R 3 and R 4 independently of one another are defined above.
• R 1 and R 3 are H or C T is C-alkyl, especially methyl or ethyl
• R 2 and R 4 are C 1 -C 4 -alkyl, especially ethyl or ethyl.
• urea itself is used as component (i-1), optionally in combination with one of the aforementioned urea derivatives, and especially only urea.
• component (i-1) a carbonic acid ester of the formula R 14 -O-CO-OR 15 , wherein R 14 and R 15 are independently as defined above.
• R 14 and R 15 are preferably C 1 -C 4 -alkyl, especially methyl or ethyl.
• Urea or a substituted urea of the formula R 1 R 2 NC (OO) -NR 3 R 4 is preferably used as component (v-1) , R 1 and R 3 are preferably H or C 1 -C 4 -alkyl, especially methyl or ethyl, and R 2 and R 4 are C 1 -C 4 -alkyl, especially methyl or ethyl.
• Urea itself is particularly preferably used as component (v-1), if appropriate in combination with one of the abovementioned urea derivatives, and in particular only urea.
• difunctional di- or polyisocyanates (iii-1), which are used for the preparation of highly branched polymers (iii), come the known in the art and exemplified below by way of example mentioned aliphatic, cycloaliphatic, araliphatic and aromatic di- or polyisocyanates in question.
• 4,4'-diphenylmethane diisocyanate the mixtures of monomeric diphenylmethane diisocyanates and oligomeric diphenylmethane diisocyanates (polymer-MDI), tetramethylene diisocyanate, tetramethylene diisocyanate trimers, hexamethylene diisocyanate, hexamethylene diisocyanate trimers, isophorone diisocyanate trimer, 4,4'-methylene bis (cyclohexyl) diisocyanate, xylylene diisocyanate, tetramethylxylylene diisocyanate, dodecyl diisocyanate, lysine alkyl ester diisocyanate, wherein alkyl is Ci-Cio-alkyl, 1, 4-diisocyanatocyclohexane or 4-isocyanatomethyl-1, 8-octamethylene diisocyanate.
• diisocyanates or polyisocyanates which have NCO groups of different reactivity.
• 2,4-tolylene diisocyanate (2,4-TDI), 2,4'-diphenylmethane diisocyanate (2,4'-MDI), triisocyanatotoluene, isophorone diisocyanate (I P-Dl), 2-butyl-2-ethylpentamethylene diisocyanate, 2 , 2,4- or 2,4,4-trimethyl-1,6-hexamethylene diisocyanate, 2-isocyanatopropylcyclohexyl isocyanate, 3 (4) -silane-cyanoatomethyl-1-methylcyclohexyl isocyanate, 1,4-diisocyanato-4-methylpentane , 2,4'-methylenebis (cyclohexyl) diisocyanate and 4-methyl-cyclohexane-1,3-diisocyanate
• di- or polyisocyanates are suitable whose NCO groups are initially the same reactive, but in which a drop in reactivity in the second NCO group can be induced by initial addition of a reactant to an NCO group.
• examples are isocyanates whose NCO groups are coupled via a delocalized ⁇ -electron system, eg. B. 1, 3 and 1, 4-phenylene diisocyanate, 1, 5 Naphthylene diisocyanate, diphenyl diisocyanate, tolidine diisocyanate or 2,6-tolylene diisocyanate.
• oligoisocyanates or polyisocyanates which are prepared from the abovementioned diisocyanates or polyisocyanates or mixtures thereof by linking by means of urethane, allophanate, urea, biuret, uretdione, amide, isocyanurate, carbodiimide , Uretonimine, oxadiazinetrione or iminooxadiazinedione structures.
• capped (blocked) di- or polyisocyanates are used as component (iii-1).
• the isocyanate groups are reversibly converted to another functional group which can be converted back into the isocyanate group under suitable conditions.
• the isocyanate group is reacted with an alcohol, preferably a monoalcohol, to form a urethane group.
• the alcohol is usually simply cleaved in the reaction of the blocked di- or polyisocyanate with the amine (iii-2).
• By blocking the isocyanate groups the very high reactivity of the isocyanates is lowered and a controlled reaction with the amine (iii-2) and thus a controlled structure of polyureas possible.
• blocking reagents for NCO groups are characterized by the fact that they ensure a thermally reversible blocking of the isocyanate groups at temperatures of generally below 160 0 C.
• Such blocking agents are generally used for the modification of isocyanates used in thermally curable one-component polyurethane systems.
• these blocking agents are described in detail in ZW Wicks, Prog. Org. Coat. 3 (1975) 73-99 and Prog. Org. Coat. 9 (1981), 3-28, DA Wicks and ZW Wicks, Prog. Org. Coat. 36 (1999), 148-172 and Prog. Org. Coat. 41 (2001), 1-83 and in Houben-Weyl, Methods of Organic Chemistry, Vol.
• blocking agents are selected from phenols, caprolactam, 1H -imidazole, 2-methylimidazole, 1, 2,4-triazole, 3,5-dimethylpyrazole, Malonklaredi- alkyl esters, acetanilide, acetone oxime and butanone oxime.
• the at least one carboxylic acid having at least two carboxyl groups (iv-1) may be aliphatic, cycloaliphatic or aromatic di- or tricarboxylic acids or polycarboxylic acid.
• aliphatic dicarboxylic acids examples include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecane- ⁇ , ⁇ -diacid and dodecane- ⁇ , ⁇ -diacid. It also includes unsaturated aliphatic dicarboxylic acids such as maleic acid, fumaric acid and sorbic acid.
• Cycloaliphatic dicarboxylic acids are, for example, cis- and trans-cyclohexane-1,2-dicarboxylic acid, cis- and trans-cyclohexane-1-dicarboxylic acid, cis- and cyclopentane-1,4-dicarboxylic acid and cis- and trans-cyclopentane-1 , 3-dicarboxylic acid.
• Aromatic dicarboxylic acids are, for example, phthalic acid, isophthalic acid and terephthalic acid.
• An example of an aliphatic tricarboxylic acid is aconitic acid (E-1, 2,3-propene-tricarboxylic acid).
• cycloaliphatic tricarboxylic acid is 1,3,5-cyclohexanetricarboxylic acid.
• Aromatic tricarboxylic acids are, for example, 1, 2,4-benzenetricarboxylic acid and 1, 3,5-benzenetricarboxylic acid.
• carboxylic acids having more than three carboxyl groups are 1, 2,4,5-benzene tetracarboxylic acid (pyromellitic acid), 1,2,3,4,5,6-benzene hexacarboxylic acid (mellitic acid) and low molecular weight polyacrylic acid or polymethacrylic acid.
• the carboxylic acids can also carry one or more radicals which are selected from C 1 -C 20 -alkyl, C 5 -C 6 -cycloalkyl, C 2 -C 10 -alkenyl and aryl.
• radicals which are selected from C 1 -C 20 -alkyl, C 5 -C 6 -cycloalkyl, C 2 -C 10 -alkenyl and aryl. Examples of these are 2-methylmalonic acid, 2-ethylmalonic acid, 2-phenylmalonic acid, 2-methylsuccinic acid, 2-ethylsuccinic acid, cis-alkenylsuccinic acid, 2-phenylsuccinic acid, itaconic acid and 3,3-dimethylglutaric acid.
• the carboxylic acids can be used as such or in the form of suitable derivatives.
• suitable derivatives are the respective anhydrides and the mono-, di- or polyesters, preferably the mono-, di- or poly-C 1 -C 4 -alkyl esters, in particular the mono-, di- or polymethyl or ethyl esters, furthermore also the mono-, di- or Polyvi- nylester and mixed esters.
• component (iv-1) it is also possible to use mixtures of different carboxylic acids and / or different carboxylic acid derivatives.
• malonic acid succinic acid, glutaric acid, adipic acid, 1, 2, 1, 3 or 1, 4-cyclohexanedicarboxylic acid, phthalic acid, isophthalic acid, terephthalic acid and the mono- and dialkyl esters, in particular the mono- and di-C 1 -C 4 -alkyl esters of the abovementioned acids.
• the at least one amine having at least two primary and / or secondary amino groups of the components (i-2), (ii-1), (iii-2), (iv-2), (v-2) and (iii) 2) is preferably selected from amines of the formula I.
• A is a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical, where the abovementioned radicals can also be interrupted by a carbonyl group or by a sulfone group and / or by 1, 2, 3 or 4 radicals may be substituted, which are selected from Ci-C 4 -AlkVl; or for a bivalent radical of the formula stands; in which each X is independently O or NR C in which R c is H, C 1 -C 4 -alkyl, C 2 -C 4 -hydroxyalkyl or C 1 -C 4 -alkoxy and preferably H, C 1 -C 4 -alkyl or C 4 alkoxy; each B is independently C2-C6 alkylene; and m is a number from 1 to 100, preferably 1 to 80 and especially 1 to
• R a and R b independently of one another are H, C 1 -C 4 -alkyl, C 2 -C 4 -hydroxyalkyl or C 1 -C 4 -alkyl
• Alkoxy and preferably represent H, Ci-C 4 alkyl or Ci-C 4 alkoxy.
• Divalent aliphatic radicals are those which contain no cycloaliphatic, aromatic or heterocyclic constituents. Examples are alkylene, alkenylene and alkynylene radicals.
• Divalent alicyclic radicals may contain one or more, for example one or two alicyclic radicals; however, they contain no aromatic or heterocyclic constituents.
• the alicyclic radicals may be substituted by aliphatic radicals, but there are binding sites for the NHR a and NHR b groups on the alicyclic radical.
• Divalent aliphatic-alicyclic radicals contain both at least one divalent aliphatic and at least one divalent alicyclic radical, the two binding sites for the NHR a and NHR b groups being either on the alicyclic radical (s) or both on the / may be the aliphatic radical (s) or one on an aliphatic radical and the other on an alicyclic radical.
• Divalent aromatic radicals may contain one or more, eg one or two, aromatic radicals; however, they contain no alicyclic or heterocyclic constituents. The aromatic radicals may be substituted by aliphatic radicals, but both binding sites for the NHR a and NHR b groups are located on the aromatic radical (s).
• Divalent araliphatic radicals contain both at least one divalent aliphatic and at least one divalent aromatic radical, wherein the two binding sites for the NHR a and NHR b groups are either both on the aromatic radical (s) or both on the aliphatic (s) Residue (s) or one may be located on an aliphatic and the other on an aromatic radical.
• the bivalent aliphatic radical A is linear or branched C 2 -C 20 -alkylene, particularly preferably linear or branched C 2 -C 10 -alkylene and, in particular, linear or branched C 4 -C -alkylene.
• Examples of suitable amines in which the radical A has this meaning are 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2-dimethyl-1,3-propanediamine , 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecemethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine , 2-butyl-2-ethyl-1, 5-pentamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6
• Alkylene as in 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2-dimethyl-1, 3-propanediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, hepta- methylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6-hexamethylenediamine, 1, 5-diamino-2-methylpentane, 1, 4-diamino-4-methylpentane and the like ,
• amines in which A is linear or branched C 4 -C 8 -alkylene, as in 2,2-dimethyl-1, 3-propanediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, Octamethylenediamine, 1, 5-diamino-2-methylpentane, 1, 4-diamino-4-methylpentane and the like.
• amines are used in which A is linear or branched C 4 -C 8 -alkylene, where in the branched alkylene of a carbonyl atom out of at most one branch.
• amines examples include 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine and 1, 5-diamino-2-methylpentane, ie the amines listed above as particularly preferred except for 2,2-dimethyl -1, 3-propanediamine and 1, 4-diamino-4-methylpentane.
• amines are used in which A is linear C 4 -C 8 -alkylene, such as 1,4-butylenediamine, 1,5-pentylenediamine, hexamethylenediamine, heptamethylenediamine and octamethylenediamine.
• the divalent alicyclic radicals A are selected from Cs-Cs-cycloalkylene which may carry 1, 2, 3 or 4 C 1 -C 4 -alkyl radicals.
• Suitable amines in which the radical A has this meaning are cyclopentylenediamine, such as 1,2-diaminocyclopentane or 1,3-diaminocyclopentane, cyclohexyllenediamine, such as 1,2-diaminocyclohexane, 1,3-diaminocyclohexane or 1 , 4-Diaminocyclohexane, 1-methyl-2,4-diaminocyclohexane, 1-methyl-2,6-diaminocyclohexane, cycloheptylenediamine, such as 1,2-diaminocycloheptane, 1,3-diaminocycloheptane or 1,4-diaminocycloheptane, and cyclooctylenediamine, such as 1, 2-diaminocyclooctane, 1, 3-diaminocyclooctane, 1, 4-diamino
• the divalent aliphatic-alicyclic radicals A are selected from C 5 -C 8 -cycloalkylene-C 1 -C 4 -alkylene, C 5 -C 8 -cycloalkylene-C 1 -C 4 -alkylene-C 6 -C 8 -cycloalkylene and C 1 -C 4 -alkylene C 5 -C 8 -cycloalkylene-C 1 -C 4 -alkylene, where the cycloalkylene radicals may carry 1, 2, 3 or 4 C 1 -C 4 -alkyl radicals.
• Suitable amines in which the radical A has the meaning are diamodicyclohexylmethane, isophoronediamine, bis (aminomethyl) cyclohexane, such as 1, 1-bis (aminomethyl) cyclohexane, 1, 2-bis (aminomethyl) cyclohexane, 1, 3-bis (aminomethyl) cyclohexane or 1,4-bis (aminomethyl) cyclohexane, 2-aminopropylcyclohexylamine, 3 (4) -aminomethyl-1-methylcyclohexylamine and the like.
• the groups attached to the alicyclic radical can assume any relative position (cis / trans) to one another.
• the divalent aromatic radicals A are selected from phenylene, biphenylene, naphthylene, phenylene-sulfone-phenylene and phenylene-carbonyl-phenylene, where the phenylene and naphthylene radicals can carry 1, 2, 3 or 4 C 1 -C 4 -alkyl radicals ,
• Suitable amines in which the radical A has this meaning are phenylenediamine, such as o-, m- and p-phenylenediamine, toluenediamine, such as o-, m- and p-toluenediamine, xylylenediamine, naphthylenediamine, such as 1, 2, 1, 3, 1, 4, 1, 5, 1, 8, 2,3, 2,6- and 2,7-naphthylene, diaminodiphenylsulfone, such as 2,2'-, 3,3'- and 4,4'-diaminodiphenylsulfone, and diaminobenzophenone, such as 2,2'-, 3,3'- and 4 , 4'-Diaminobenzophenone.
• phenylenediamine such as o-, m- and p-phenylenediamine
• toluenediamine such as o-, m- and p-toluenediamine
• the divalent araliphatic radicals A are selected from phenylene-C 1 -C 4 -alkylene and phenylene-C 1 -C 4 -alkylene-phenylene, where the phenylene radicals may carry 1, 2, 3 or 4 C 1 -C 4 -alkyl radicals.
• radical A examples include diamodiphenylmethane, such as 2,2'-, 3,3'- and 4,4'-diaminodiphenylmethane, and the like.
• X is O.
• m is preferably a number from 2 to 100, preferably 2 to 80 and in particular 2 to 20, e.g. 2 to 10 or 2 to 6.
• amine-terminated polyoxyalkylene polyols for example Jeff amines, such as 4,9-dioxadodecane-1, 12-diamine and 4,7,10-trioxatridecan-1, 13- diamine, or more regular amine-terminated polyoxyalkylene polyols, such as amine-terminated polyethylene glycols, amine-terminated polypropylene glycols or amine-terminated polybutylene glycols.
• the last three amines (amine-terminated polyalkylene glycols) preferably have a molecular weight of 200 to 3000 g / mol.
• X is NR C.
• R c is preferably H or C 1 -C 4 -alkyl, particularly preferably H or methyl and in particular H.
• B is in particular C 2 -C 3 -alkylene, such as 1, 2-ethylene, 1, 2 Propylene and 1, 3-propylene, and in particular for 1, 2-ethylene.
• m here preferably stands for a number from 1 to 10, more preferably from 1 to 6 and in particular from 1 to 4.
• Suitable amines in which the radical A has the meaning are diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethylene lenheptamine, heptaethyleneoctamine, octaethyleneenenamine, higher polyimines, bis (3-aminopropyl) amine, bis (3-aminopropyl) methylamine and the like.
• R a and R b independently of one another preferably represent H or C 1 -C 4 -alkyl, particularly preferably H, methyl or ethyl and in particular H.
• the at least one amine having at least two primary and / or secondary amino groups of components (i-2), (ii-1), (iii-2), (iv) 2), (v-2) and (vi-2) are preferably selected from amines having at least two primary amino groups. Accordingly, R a and R b in compounds I are preferably both H.
• the amine is used with at least two primary and / or secondary amino groups of the components (i-2), (ii-1), (iii-2), (iv-2), (v-2) and ( vi-2) at least one diamine having exactly two primary amino groups. That is, in addition to the two primary amino functions, this amine contains no further (primary, secondary and / or tertiary) amino groups.
• Preferred diamines having two primary amino groups are those of the formula
• A is a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical, where the abovementioned radicals can also be interrupted by a carbonyl group or by a sulfone group and / or by 1, 2, 3 or 4 radicals may be substituted, which are selected from
• Ci-C4-alkyl and wherein the aforementioned radicals of course do not contain amino groups; or for a bivalent radical of the formula stands; wherein X is O;
• B is C 2 -C 6 alkylene; and m is a number from 1 to 100, preferably 1 to 80 and especially 1 to 20.
• suitable and preferred aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radicals A and divalent radicals of the formula - [B-XJm-B-, wherein X is O, as well as the associated preferred and suitable Amines is hereby incorporated by reference (all of the above examples of amines wherein A represents a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical or a divalent radical of the formula - [B-X-Mm-B- X is O, primary diamines are).
• Particularly preferred diamines having two primary amino groups are those of the formula NH 2 -A-NH 2 , where A is a divalent aliphatic radical and preferably linear or branched C 2 -C 2 O-Al kylene.
• A is a divalent aliphatic radical and preferably linear or branched C 2 -C 2 O-Al kylene.
• particularly preferred diamines having two primary amino groups are those of the formula NH 2 -A-NH 2 wherein A is an aliphatic-alicyclic radical.
• the at least one amine having at least three primary and / or secondary amino groups of the components (i-2), (ii-1), (iii-2), (iv-2) and (v-2) is preferably selected from
• a 1 is a bivalent radical of the formula stands; wherein each X 1 is independently O or NR c1 , wherein at least one X 1 in the compound La is NR c1 ; wherein R c1 represents H, Ci -C 4 -alkyl, C 2 -C 4 -HVd roxya I ky I or -C 4 -alkoxy, is wherein at least one R c1 represents H, and preferably is H, Ci- C 4 alkyl or Ci-C 4 alkoxy, wherein at least one radical R c1 is H; each B 1 is independently C2-C6 alkylene; and m 1 is a number from 1 to 20; and
• R a1 and R b1 are independently H, Ci-C 4 alkyl, C 2 -C 4 - H yd roxya I kyl or d- C4-alkoxy, preferably H, Ci-C 4 alkyl or C 4 alkoxy;
• Y represents CR9, N, C 2 -C 6 -alkyl, C 3 -C 6 -cycloalkyl, phenyl or a 5- or 6-membered, saturated, partially unsaturated or aromatic heterocyclic ring having 1, 2 or 3 heteroatoms as ring members which are selected from N, O and S;
• Ei, E 2 and E 3 are each independently a single bond, Ci-Cio-alkylene, -NR h - C 2 -Ci o-alkylene or -0-Ci-Cio-alkylene, with the proviso that Ei, E 2 and , E3 are not a single bond, and not for -NR h-C2-Cio-alkylene when
• R d , R e and R f independently of one another are H, C 1 -C 4 -alkyl, C 2 -C 4 -hydroxyalkyl or
• C 4 alkoxy and preferably represent H, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; and Ra and R h independently of one another are H, C 1 -C 4 -alkyl, C 2 -C 4 -hydroxyalkyl or C 1 -C 4 -alkyl.
• a a has one of the meanings given for A;
• a b , A c , A d and A e independently of one another are C 1 -C 10 -alkylene;
• Z is N or CR m ;
• R 1 , RJ, R k , R 1 and R m are each independently H, Ci-C 4 alkyl, C 2 -C 4 -HVd roxya I ky I or Ci-C 4 alkoxy and preferably H, Ci are -C 4 alkyl or Ci-C 4 alkoxy; and
• R c1 taking into account the above proviso, is preferably H or C 1 -C 4 -alkyl, particularly preferably H, methyl or ethyl and in particular H.
• B 1 is preferably C 2 -C 3 -alkylene, such as 1, 2-ethylene, 1, 2-propylene and 1, 3-propylene, and in particular 1, 2-ethylene.
• m 1 preferably represents a number from 1 to 10, particularly preferably from 1 to 6 and in particular from 1 to 4.
• Suitable amines of the formula Ia are diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethyleneheptamine, heptaethylenoc-tamine, octaethylenemonon, higher polyimines, bis (3-aminopropyl) amine, bis (3-aminopropyl) methylamine and the like.
• Y is N, not a single bond, and not for -NR h-C2-Cio-alkylene.
• Y is N, preferably Ei, E2 and E3 are not methylene (Ci-alkylene).
• Y stands for CRs, preferably at least two of the groups Ei, E2 and E3 are not a single bond.
• the three arms can be -Ei-NHR d , -E2-NHR e and -E3-NHR f on carbon ring atoms as well be bound to nitrogen ring atoms of the heterocycle Y.
• the arms -Ei-NHR d , -E2-NHR e and -E3-NHR f are attached to ring nitrogen atoms, then Ei, E2 and E3 are not a single bond and not -NR h -C 2 -ioalkylene ,
• the arms are bonded to different ring atoms of the heterocycle Y.
• the heterocyclic ring Y is preferably selected from 5- or 6-membered heteroaromatic rings having 1, 2 or 3 nitrogen atoms as ring members.
• Hetraylringe examples include pyrrolyl, pyrazolyl, imidazolyl, pyridyl, pyrimidyl, pyrazinyl, pyridazonyl and triazinyl. More preferred among these are 6-membered hetaryl rings, such as pyridyl, pyrimidyl, pyrazinyl, pyridazinyl and triazinyl, with triazinyl being particularly preferred.
• the compounds III are amines having at least four primary and / or secondary amino functions.
• a a preferably has one of the meanings for A given as being preferred.
• a a is C 2 -C 6 -alkylene, particularly preferably linear C 2 -C 6 -alkylene, such as 1,2-ethylene, 1,3-propylene, 1,4-butylene, pentamethylene and hexamethylene.
• Z is preferably N.
• a b , A c , A d and A e are preferably C 2 -C 6 -alkylene, particularly preferably linear C 2 -C 6 -alkylene, such as 1, 2-ethylene, 1, 3-propylene, 1, 4-butylene, pentamethylene and hexamethylene, and especially for linear C 2 -C 4 -alkylene, such as 1,2-ethylene, 1,3-propylene and 1,4-butylene.
• R 1 , RJ, R k , R 1 and R m are preferably H.
• Examples of amines having at least three primary and / or secondary amino groups of the formulas Ia, II and III are diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethyleneheptamine, heptaethyleneoctamine, octaethylene nonamine, higher polyimines, eg polyethylenimines and polypropyleneimines, bis (3-aminopropyl) amine, bis (4-aminobutyl) amine, bis (5-aminopentyl) amine, bis (6-aminohexyl) amine, 3- (2-aminoethyl) - aminopropylamine, N, N-bis (3-aminopropyl) ethylenediamine, N ', N-bis (3-aminopropyl) ethylenediamine, N, N-bis (3-aminopropyl) propane-1,3-diamine , N, N-bis (3-a
• Particularly preferred amines having at least three primary and / or secondary amino groups are selected from amines of the formula I.a and amines of the formula II.
• Preferred amines of the formula Ia are diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethyleneheptamine, heptaethyleneoctamine, octaethylenemononamine, higher polyimines, e.g.
• Polyethyleneimines and polypropyleneimines bis (3-aminopropyl) amine, bis (4-aminobutyl) amine, bis (5-aminopentyl) amine, bis (6-aminohexyl) amine, 3- (2-aminoethyl) aminopropylamine, N ', N Bis (3-aminopropyl) ethylenediamine, N, N'-bis (3-aminopropyl) -propane-1,3-diamine and N, N'-bis (3-aminopropyl) -butane-1,4 diamine.
• Preferred amines of the formula II are those in which Y is N or a 1,3,5-triazine-2,4,6-triyl ring.
• Preferred amines II, wherein Y is N are selected from N, N-bis (3-aminopropyl) ethylenediamine, N, N-bis (3-aminopropyl) -propane-1,3-diamine, N, N Bis (3-aminopropyl) butane-1, 4-diamine, tris (2-aminoethyl) amine, tris (2-aminopropyl) amine, tris (3-aminopropyl) amine, tris (2-aminobutyl) amine, Tris (3-aminobutyl) amine, tris (4-aminobutyl) amine, tris (5-aminopentyl) amine, tris (6-aminohexyl) amine,
• Preferred amines II in which Y is a 1,3,5-triazine-2,4,6-triyl ring are melamine and aminoalkyl-substituted melamines, such as N, N ', N "-tris (2-aminoethyl) melamine, N, N ', N "-Tris (3-aminopropyl) melamine, N, N', N” -Tris (4-aminobutyl) melamine, N, N ', N "- tris (5-aminopentyl) melamine and N, N ', N "-tris (6-aminohexyl) melamine.
• this is at least one amine having at least three primary and / or secondary amino groups of components (i-2), (ii-1), (iii-2), (iv-2) and (v-2) preferably selected from amines having at least three primary amino groups.
• the radicals R a1 , R b1 and R c1 are preferably H and also in compounds II, the radicals R d , R e and R f are preferably H.
• the radicals R 1 , R J R k and R 1 are preferably H.
• the components (i-1) and (i-2) are in a molar ratio of preferably 50: 1 to 1:50, more preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, even more preferably from 5: 1 to 1:15, in particular from 2: 1 to 1:15 and especially from 1: 5: 1 to 1:10.
• component (i-2) comprises amines having two primary and / or secondary amino groups
• the molar ratio of the at least one amine having at least three primary and / or secondary amino groups to the amine (s) having two primary and / or secondary amino groups preferably 100: 1 to 1:20, particularly preferably 50: 1 to 1:10 and in particular 25: 1 to 1:10.
• the at least one amine having at least three primary and / or secondary amino groups comprises melamine.
• component (i-2) may also comprise other amines other than melamine having at least three primary and / or secondary amino groups.
• the highly branched polymers (i) are obtainable by condensation of
• the highly branched polymers (i) are obtainable by condensation of (i-1) urea or at least one urea derivative; (i-2a) melamine; (i-2b) at least one amine, wherein the at least one amine
• (i-2bb) 0 to 50 mol%, based on the total amount of the components (i-2ba), (i-2bb) and (i-2bc), of at least one polyamine having at least three primary amino groups other than melamine ; and (i-2bc) 0 to 80 mole%, based on the total amount of components (i-2ba), (i-2bb) and (i-2bc), of at least one amine having a primary amino group; and
• (i-2c) optionally at least one melamine derivative selected from benzoguanamine, substituted melamines and melamine condensates.
• urea Preference is given to using as component (i-1) urea or a substituted urea of the formula R 1 R 2 NC (OO) -NR 3 R 4 , in which R 1 , R 2 , R 3 and R 4 are independently of one another as defined above , R 1 and R 3 are preferably H or C 1 -C 4 -alkyl, especially methyl or ethyl, and R 2 and R 4 are C 1 -C 4 -alkyl, especially methyl or ethyl.
• urea itself is particularly preferably used as component (i-1), if appropriate in combination with one of the abovementioned urea derivatives, and in particular only urea.
• the molar ratio of component (i-1) to component (i-2a) is preferably 50: 1 to 1:50, more preferably 10: 1 to 1:10, more preferably 8: 1 to 1: 8, even more preferably 4 : 1 to 1: 8, especially 2: 1 to 1: 5 and especially 1: 1 to 1: 5.
• the molar ratio of component (i-1) to component (i-2b) is preferably 10: 1 to 1:50, more preferably 2: 1 to 1:50, more preferably 2: 1 to 1:25, even more preferably 1 : 1 to 1: 20, especially 1: 2.5 to 1:15 and especially 1: 5 to 1:15.
• the components (i-1), (i-2a) and (i-2b) are used in such molar ratios that the ratio of
• J ' is preferably in the range of 0.05: 1 to 0.75: 1, more preferably from 0.075: 1 to 0.5: 1 and especially from 0.1: 1 to 0.4: 1.
• the molar ratio of the components (i-1) and (i-2a) is preferably in the above ranges.
• component (i-2c) When component (i-2c) is used in the process according to the invention, it preferably replaces a part of component (i-1). It is preferably used in amounts such that it replaces from 1 to 75 mol%, particularly preferably from 1 to 50 mol% and in particular from 1 to 25 mol% of component (i-1).
• the at least one amine (i-2b) is preferably composed exclusively of the components (i-2ba), (i-2bb) and (i-2bc); that is, the proportions of these three components add up to 100 mole percent component (i-2b).
• the component (i-2ba) is preferably used in an amount of from 30 to 100 mol%, more preferably from 50 to 100 mol%, and especially from 75 to 100 mol%, based on the total amount of the components (i-2ba) , (i-2bb) and (i-2bc).
• Component (i-2bb) is used in an amount of preferably 0 to 40 mol%, more preferably 0 to 30 mol%, and especially 0 to 15 mol%, based on the total amount of components (i-2ba), (i-2bb) and (i-2bc).
• Component (i-2bc) is used in an amount of preferably 0 to 70 mol%, more preferably 0 to 50 mol%, and especially 0 to 25 mol%, based on the total amount of components (i-2ba) , (i-2bb) and (i-2bc).
• component (i-2bb) When component (i-2bb) is used, its use amount is preferably 1 to 50 mol%, e.g. 5 to 50 mol% or 10 to 50 mol%, particularly preferably 1 to 40 mol%, e.g. 5 to 40 mol% or 10 to 40 mol%, more preferably 1 to 30 mol%, e.g. 5 to 30 mol% or 10 to 30 mol%, and especially 1 to 15 mol%, e.g. 2 to 15 mol% or 5 to 15 mol% based on the total amount of the components (i-2ba), (i-2bb) and (i-2bc).
• 1 to 50 mol% e.g. 5 to 50 mol% or 10 to 50 mol%
• component (i-2bc) its amount used is preferably 1 to 80 mol%, for example 5 to 80 mol% or 10 to 80 mol%, particularly preferably 1 to 70 mol%, for example 5 to 70 mol % or 10 to 70 mol%, more preferably 1 to 50 mol%, eg 5 to 50 mol% or 10 to 50 mol%, and especially 1 to 25 mol%, eg 5 to 25 mol% or 10 to 25 mol%, based on the total amount of components (i-2ba), (i-2bb) and (i-2bc).
• Component (i-2ba) contains exactly two primary amino groups (-NH 2 ).
• component (1-2ba) When component (1-2ba) is a polyamine, it contains two primary amino groups (-NH 2 ) and also contains one or more secondary (-NHR; R other than H) and / or tertiary (-NRR '; R and R 'are not H) amino groups, for example 1 to 20 or 1 to 10 or 1 to 4 secondary and / or tertiary amino groups.
• component (i-2ba) is a diamine, this contains no further amino functions apart from the two primary amino groups.
• the di- or polyamine of component (i-2ba) in embodiment (i-Aa) or component (i-2b) in embodiment (i-A) is preferably selected from amines of the formula
• Preferred diamines having two primary amino groups are those of the formula
• A is a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical, where the abovementioned radicals may also be interrupted by a carbonyl group or by a sulfone group and / or by 1, 2, 3 or 4 radicals may be substituted, which are selected from Ci-C 4 -AlkVl, and wherein the aforementioned radicals of course do not contain amino groups; or for a bivalent radical of the formula stands; wherein X is O; B is C 2 -C 6 alkylene; and m is a number from 1 to 100, preferably 1 to 80 and more preferably 1 to 20.
• Particularly preferred diamines having two primary amino groups are those of the formula NH 2 -A-NH 2, where A is a divalent aliphatic radical and preferably linear or branched C 2 -C 20 -alkylene.
• Examples of suitable amines in which the radical A has this meaning are 1, 2-ethylenediamine, 1, 2-and 1, 3-propylenediamine, 2,2-dimethyl-1,3-propanediamine , 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine, 2 Butyl-2-ethyl-1, 5-pentamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6-
• a in the diamines having two primary amino groups is linear or branched C 2 -C 10 -alkylene.
• suitable amines in which the radical A has this meaning are 1, 2-ethylenediamine, 1, 2 and 1, 3-propylenediamine, 2,2-dimethyl-1,3-propanediamine , 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6-hexamethylenediamine, 1, 5-diamino 2-methylpentane, 1, 4-diamino-4-methylpentane and the like.
• a in the diamines with two primary amino groups is linear or branched C 4 -Cs-Al kylene.
• suitable amines in which the radical A has the meaning (C 4 -C 8 -alkylene) are 2,2-dimethyl-1,3-propanediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, Heptamethylenediamine, octamethylenediamine, 1, 5-diamino-2-methylpentane, 1, 4-diamino-4-methylpentane and the like.
• amines are used in which A is linear or branched C 4 -Cs-alkylene, wherein in branched alkylene at most one branch originates from one carbon atom.
• examples of such amines are 1,4-butylenediamine, 1,5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine and 1,5-diamino-2-methylpentane, ie the amines except those listed above as being particularly preferred up to 2,2-dimethyl- 1, 3-propanediamine and 1, 4-diamino-4-methylpentane.
• amines in which A is linear C 4 -C 8 -alkylene such as in 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine and octamethylenediamine.
• the diamine having two primary amino groups is hexamethylenediamine.
• This component (i-2bb) or partial component (i-2b) contains three or more primary amino groups and may also contain one or more secondary and / or tertiary amino groups.
• this polyamine component (i-2bb) or component (i-2b) is especially useful if a higher degree of branching of the polymers should be set as with the di- or polyamine (i-2ba) or (i -2b) is possible in combination with melamine alone, since polyamines having at least three primary amino groups open up further branching possibilities in addition to the melamine (i-2a) which is mandatory in embodiment iA or i-Aa.
• the secondary and / or tertiary amino groups contained in the polyamine (i-2ba) are less reactive than the primary amino groups and are under the usual condensation conditions, if at all, then usually only in a small extent able to undergo condensation and thus a branch point to build. In any case, they are able to form branching points to a much lesser extent than component (i-2bb).
• This component is an amine having a single primary amino function and optionally one or more secondary and / or tertiary amino groups.
• Examples of primary amines without further secondary / tertiary amino functions are compounds of the formula R-Nhb in which R is an aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical which of course contains no amino groups.
• Examples of these are methylamine, ethylamine, propylamine, isopropylamine, n-butylamine, sec-butylamine, isobutylamine, tert-butylamine, pentylamine, hexylamine, ethanolamine, propanolamine, isopropanolamine, pentanolamine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-methoxyethyl) -amine, (2-me
• Ethoxyethyl) amine (3-methoxypropyl) amine, (3-ethoxypropyl) amine, [3- (2-ethylhexyl) - propyl] amine, 2- (2-aminoethoxy) ethanol, cyclohexylamine, aminomethylcyclohexane, aniline, benzylamine and the like.
• Examples of primary amines having one or more secondary and / or tertiary amino functions are N-
• Dimethylhexylene-1,6-diamine N-methyl-diethylenetriamine, N, N-dimethyl-diethylenetriamine, N-methyl-triethylenetetramine, N, N-dimethyl-triethylenetetramine, N-methyl-tetraethylenepentamine, N, N-dimethyl-tetraethylenepentamine, (3- (methylamino) -propyl) - (3-aminopropyl) -amine, (3- (dimethylamino) -propyl) - (3-aminopropyl) -amine, (2-aminoethyl) -ethanolamine, N- (2-hydroxyethyl ) -1, 3-propanediamine, N-methyldiaminocyclohexane, N, N-dimethyldiaminocyclohexane, N-methylphenylenediamine and the like.
• component (i-2bc) are primary monoamines, i. Amines with a single primary amino group and no further secondary or tertiary amino functions.
• At least one melamine derivative is used as further starting material (component i-2c).
• the melamine derivative is selected from benzoguanamine, substituted melamines and melamine condensates.
• the melamine condensates are preferably selected from melam, Meiern, melon and higher condensates.
• Melam molecular formula C ⁇ -HgNu
• Meiern empirical formula C ⁇ H ⁇ Mio
• Melon empirical formula C6H3N9 is also a heptazine.
• the highly branched polymer (i) is obtainable by condensation of
• component (i-2e) optionally at least one amine having two primary and / or secondary amino groups.
• Urea itself is particularly preferably used as component (i-1), if appropriate in combination with one of the abovementioned urea derivatives, and in particular only urea.
• component (i-1) is a carbonic acid ester of the formula R 14 -O-CO-OR 15 , wherein R 14 and R 15 are independently as defined above.
• R 14 and R 15 are preferably C 1 -C 4 -alkyl, especially methyl or ethyl.
• at least one of R 9 , R 10 , R 11 , R 12 and R 13 does not stand for H but for C 1 -C 4 -alkyl, especially for methyl or ethyl, and the other radicals are H or C 1 -C 4 -alkyl.
• At least one amine (i-2d) having at least three primary and / or secondary amino groups which is different from melamine reference is made to the above statements, but with the proviso that the amine is not melamine.
• a 1 is preferably a radical -fB 1 -X 1 ⁇ m iB 1 - in which X 1 is NR c1 and R c1 is H. Particular preference is also R a1 and R b1 for H.
• the amine (i-2e) having two primary and / or secondary amino groups is preferably selected from amines of the formula Ib NHR a2 -A 2 -NHR b2 (Ib) where
• a 2 represents a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical as defined above, where the abovementioned radicals may also be interrupted by a carbonyl group or by a sulfone group and / or by 1, 2, 3 or 4 Radicals can be substituted, which are selected from C 1 -C 4 -alkyl; or for a bivalent radical of the formula
• each B 2 is independently C2-C6 alkylene; and m 2 is a number from 1 to 100, preferably 1 to 80 and in particular 1 to
• R a2 and R b2 independently of one another are H, C 1 -C 4 -alkyl, C 2 -C 4 -hydroxyalkyl or
• Examples of such amines lb having two primary and / or secondary amino groups are 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2-dimethyl-1, 3-propanediamine, 1, 4-butylenediamine, 1 , 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine, 2-butyl-2-ethyl-1, 5-pentamethylenediamine , 2,2,4- or 2,4,4-trimethyl-1,6-hexamethylenedi
• amines having two primary amino groups such as 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2-dimethyl-1, 3-propanediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine , Hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine, 2-butyl-2-ethyl-1, 5 pentamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6-hexamethylenediamine, 1, 5-diamin
• a 2 is preferably a divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic or araliphatic radical as defined above, where the abovementioned radicals can also be interrupted by a carbonyl group or by a sulfone group and / or by 1, 2, 3 or 4 radicals can be substituted, which are selected from Ci-C 4 -AlkVl. Accordingly, diamines having two primary and / or secondary amino groups and no further tertiary amino groups are preferred.
• Examples of these are 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2- Dimethyl-1,3-propanediamine, 1,4-butylenediamine, 1,5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, hepadecamethylenediamine, Octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine, 2-butyl-2-ethyl-1, 5-pentamethylenediamine, 2,2,4- or 2,4,4-trimethyl-1,6-hexamethylenediamine, 1, 5-diamino-2 -methylpentane, 1,4-d
• bis (aminomethyl) cyclohexane such as 1,1-bis (aminomethyl) -cyclohexane, 1,2-bis (amin
• m- and p-toluenediamine xylylenediamine, naphthylenediamine, such as 1, 2, 1, 3, 1, 4, 1, 5, 1, 8, 2,3- , 2,6- and 2,7-naphthylene, diamodiphenylsulfone, such as 2,2'-, 3,3'- and 4,4'-diaminodiphenylsulfone, and diaminobenzophenone, such as 2,2'-, 3, 3'- and 4,4'-diaminobenzophenone, furthermore diaminodiphenylmethane, such as 2,2'-, 3,3'- and 4,4'-diaminodiphenyl, amine-terminated polyoxyalkylene polyols, for example Jeff amines, such as 4 , 9-dioxadodecane-1, 12-diamine and 4,7,10-trioxatridecane-1, 13-diamine, or else more regular
• diamines having two primary amino groups and no further secondary / tertiary amino groups are particularly preferred.
• diamines having two primary amino groups and no further secondary / tertiary amino groups are particularly preferred.
• these are 1,2-ethylenediamine, 1,2- and 1,3-propylenediamine, 2,2-dimethyl-1,3-propanediamine, 1,4-butylenediamine, 1,5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, Nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine min, nonadecamethylenediamine, eicosamethylenediamine, 2-butyl-2
• Naphthylenediamine such as 1, 2, 1, 3, 1, 4, 1, 5, 1, 8, 2,3, 2,6 and 2,7-naphthylene
• diamino diphenylsulfone such as 2 , 2'-, 3,3'- and 4,4'-diaminodiphenylsulfone
• diaminobenzophenone such as 2,2'-, 3,3'- and 4,4'-diaminobenzophenone, as well as diaminodiphenyl- methane, such as 2 , 2'-, 3,3'- and 4,4'-diaminodiphenyl
• amine-terminated polyoxyalkylene polyols for example Jeff amines, such as 4,9-dioxadodecane-1, 12-diamine and 4,7,10-
• Trioxatridecan-1, 13-diamine, or more regular amine-terminated polyoxyalkylene lenpolyole such as amine-terminated polyethylene glycols, amine-terminated polypropylene glycols or amine-terminated polybutylene glycols.
• the last three amines (amine-terminated polyalkylene glycols) preferably have a molecular weight of 200 to 3000 g / mol.
• More preferred diamines are lb with two primary amino groups and no further secondary / tertiary amino groups in which A 2 represents an aliphatic or aliphatic- alicyclic group.
• primary diamines Ib with aliphatic groups A 2 are 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 2,2-dimethyl-1,3-propanediamine, 1, 4-butylenediamine, 1, 5 Pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenedi
• linear aliphatic groups such as 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine , Tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecane methylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecymethylenediamine and eicosamethylenediamine, wherein linear C2-C6-alkylene groups as group A 2 , as in 1, 2-ethylenediamine, 1, 3-propylenediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine and Hexamethylenediamine, wherein linear
• Examples of primary diamines Ib with aliphatic-alicyclic groups A 2 are diaminodicyclohexylmethane, isophoronediamine, bis (aminomethyl) cyclohexane, such as 1,1-bis (aminomethyl) -cyclohexane, 1,2-bis (aminomethyl) cyclohexane, 1 , 3-bis (aminomethyl) cyclohexane or 1,4-bis (aminomethyl) cyclohexane, 2-aminopropylcyclohexylamine, 3 (4) -aminomethyl-1-methylcyclohexylamine and the like. Particularly preferred among these is isophorone diamine.
• the molar ratio of urea component (i-1) to the total amount of amines (i-2d) and (i-2e) is preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, even more preferably 5: 1 to 1: 5 and especially 2: 1 to 1: 2.
• the molar ratio of component (i-2d) to (i-2e) is preferably 20: 1 to 1 to 1:20, more preferably 10: 1 to 1:10, even more preferably 5: 1 to 1: 5 and especially 2: 1 to 1: 2.
• the preparation is generally carried out by reacting components (i-1) and (i-2) and optionally other reactants, such as primary monoamines or melamine derivatives, at elevated temperature.
• the reaction temperature is preferably 40 to 300 0 C, particularly preferably 100 to 250 0 C and in particular 150 to 230 ° C.
• Suitable catalysts are bases, such as alkali metal hydroxides and alkaline earth metal hydroxides, for example sodium hydroxide, potassium hydroxide, calcium hydroxide or magnesium hydroxide, alkali metal and alkaline earth metal hydrogencarbonates, for example sodium bicarbonate, potassium bicarbonate, calcium hydrogencarbonate or magnesium hydrogencarbonate, alkali metal and alkaline earth metal carbonates, for example sodium carbonate, potassium carbonate, calcium carbonate or Magnesium carbonate, basic non-nucleophilic amines such as DBU (diazabicycloundecene), DBN (diazabicyclononene), DABCO (diazabicyclooctane), nitrogen-containing heterocycles such as imidazole, 1- and 2-methylimidazole, 1,2-dimethylimidazole, pyridine, lutidine and the like.
• bases such as alkali metal hydroxides and alkaline earth metal hydroxides, for example sodium hydroxide, potassium hydroxide,
• Suitable catalysts are furthermore aluminum, tin, zinc, titanium, zirconium Con- and bismuth organic compounds such as titanium tetrabutoxide, dibutyltin oxide, dibutyltin dilaurate, tin dioctoate, zirconium acetylacetonate and mixtures thereof.
• Bronsted acids or Lewis acids are both inorganic acids, such as mineral acids, e.g. Hydrofluoric acid, hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid or amidosulfonic acid, but also ammonium salts, such as ammonium fluoride, ammonium chloride, ammonium bromide or ammonium sulfate, as well as organic acids, such as methanesulfonic acid, acetic acid, trifluoroacetic acid and p-sulfonic acid.
• mineral acids e.g. Hydrofluoric acid, hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid or amidosulfonic acid
• ammonium salts such as ammonium fluoride, ammonium chloride, ammonium bromide or ammonium sulfate
• organic acids such as methanesulfonic acid, acetic acid, trifluoroacetic acid and
• Suitable Bronsted acids are also the ammonium salts of organic amines, such as ethylamine, diethylamine, propylamine, dipropylamine, butylamine, dibutylamine, aniline, benzylamine or melamine, and also the ammonium salts of urea.
• Suitable Lewis acids are any metal or semimetallic halides in which the metal or metalloid has an electron pair gap. Examples include BF3, BCB, BBr 3, AlF 3, AlCl 3, AlBr 3, ethylaluminum dichloride, diethylaluminum chloride, TiF 4, TiCl 4, TiBr 4, VCI 5, FeF 3, FeCl 3, FeBr 3 ZnF 2, ZnCl 2, ZnBr 2, Cu (I) F, Cu (I) Cl, Cu (I) Br, Cu (II) F 2 , Cu (II) Cl 2 , Cu (II) Br 2 , Sb (III) F 3 , Sb (V) F 5, Sb (III) Cl 3, Sb (V) CI 5, Nb (V) CI 5, Sn (II) F 2, Sn (II) Cl 2, Sn (II) Br 2, Sn (IV) F 4 , Sn (IV) Cl 4 and Sn (IV) Br 4
• Bronsted acids preference is given to using Bronsted acids.
• the reaction can be carried out both at atmospheric pressure and at elevated pressure, for. B. at a pressure of 1 to 20 bar or 1 to 15 bar or 10 to 15 bar.
• the pressure is frequently exclusively due to the ammonia liberated in the course of the reaction during the condensation of the components (i-1) and (i-2) (if urea, thiourea, guanidine and / or biuret as component (i-1)) built up; that is, the pressure increases with the progress of the reaction and can then be adjusted to the desired value.
• the pressure can also be built up via an inert gas, for example by introducing nitrogen, argon or carbon dioxide, preferably nitrogen.
• reaction pressure is given in particular by the type of amines used (component i-2).
• the reaction can be carried out at atmospheric pressure when the at least one amine used has a boiling point which is above the reaction temperature.
• the boiling point is below the reaction temperature, it is of course advantageous. liable to carry out the reaction at elevated pressure.
• amines having a boiling point above the reaction temperature it may be advantageous under certain circumstances to carry out the reaction under excess pressure, for example in order to achieve a higher reaction rate.
• the reaction can be carried out in a suitable solvent.
• suitable solvents are inert, ie they do not react with the starting materials, intermediates or products under the given reaction conditions and are not degraded even under the given reaction conditions, for example by thermal decomposition.
• suitable solvents are chlorinated aliphatic or aromatic hydrocarbons, such as methylene chloride, chloroform, dichloroethane, trichloroethane, chlorobenzene, chlorotoluene and o-dichlorobenzene, open-chain and cyclic ethers, such as diethyl ether, dipropyl ether, tert-butyl methyl ether, tert-butyl ethyl ether, tetrahydrofuran and 1, 4-dioxane, polar aprotic solvents, such as N, N-dimethylformamide, N, N-dimethylacetamide, dimethylsulfoxide and acetonitrile, and polar protic solvents, eg Polyols or polyether polyols, such as ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol or polyethylene glycol.
• chlorinated aliphatic or aromatic hydrocarbons such
• Preferred solvents are the abovementioned polyols or polyether polyols.
• the reaction is carried out in bulk, that is without additional solvent.
• an amine component i-2
• the reaction may be carried out by mixing all components and reacting by heating to the desired reaction temperature.
• some of the components may also be added first and the remaining ingredients gradually added, the order of addition being of minor importance.
• it has proven to be less soluble components such as urea or melamine, not completely present, but gradually fed continuously or in portions.
• the addition of the individual reactants takes place in such a way that their complete dissolution is ensured so that their conversion in the condensation reaction is as complete as possible.
• reaction is generally carried out in reaction vessels customary for such condensation reactions, for example in heatable stirred reactors, stirred pressure vessels or stirred autoclave.
• the reaction mixture is usually allowed to react until a desired maximum viscosity is reached.
• the viscosity can be determined by sampling and determination by conventional methods, for example with a viscometer; However, it often appears visually in the course of the reaction when the viscosity increases greatly, for example by foaming of the reaction mixture.
• the reaction is preferably stopped when the reaction mixture has a viscosity of not more than 100,000 mPas, eg from 250 to 100,000 mPas or from 500 to 100,000 mPas or preferably from 750 to 100,000 mPas (at 100 ° C.), particularly preferably not more than 50,000 mPas, eg from 250 to 50,000 mPas or from 500 to 50,000 mPas or preferably from 750 to 50,000 mPas (at 100 ° C.), and in particular not more than 10,000 mPas, for example from 250 to 10,000 mPas or from 500 to 10,000 mPas or from preferably from 750 to 10,000 mPas (at 100 ° C).
• the reaction is stopped.
• the reaction is preferably stopped by lowering the temperature, preferably by lowering the temperature to ⁇ 100 °, z. B. 20 to ⁇ 100 °, preferably to ⁇ 50 0 C, z. B. to 20 to ⁇ 50 0 C.
• the workup / purification can be carried out by conventional methods, for example by deactivating or removing the catalyst and / or by removing solvent and unreacted educts. In general, however, the degree of purity of the resulting polycondensates is sufficient so that no further work-up or purification must be carried out and the product can be fed directly to its further intended use as a hardener.
• the products (i) are hyperbranched and essentially non-crosslinked
• the polymer (ii) is obtainable by the condensation of an amine having at least three primary and / or secondary amino groups, this must be capable of self-condensation. Suitable for this purpose are basically the previously described amines La, Il and III with the exception of melamine.
• the highly branched polymer (ii) is preferably obtainable by condensation of at least two (different) amines having at least two primary and / or secondary amino groups, wherein at least one amine must contain at least three primary and / or secondary amino groups.
• component (ii-1) comprises amines having two primary and / or secondary amino groups
• the molar ratio of the at least one amine having at least three primary and / or secondary amino groups to the amine (s) having two primary and two amino groups or secondary amino groups preferably 100: 1 to 1: 100, more preferably 50: 1 to 1:50, more preferably 20: 1 to 1:20, even more preferably 10: 1 to 1:10, especially 2: 1 to 1:10 and especially 1: 1 to 1: 5.
• component (ii-1) If only amines having at least three primary and / or secondary amino groups are used as component (ii-1), it is preferred to use a mixture of at least two different amines having at least three primary and / or secondary amino groups.
• the at least one amine having at least three primary and / or secondary amino groups comprises melamine.
• components (ii-1) may also comprise other amines, other than melamine, having at least three primary and / or secondary amino groups.
• the highly branched polymer (ii) is obtainable by condensation of
• (ii-1 b) at least one amine having at least two primary and / or secondary amino groups.
• the molar ratio of amine (ii-1a) to amine (ii-1b) is preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, even more preferably 1: 1 to 1: 5 and in particular 1: 1, 5 to 1: 5, especially 1: 2 to 1: 4.
• the highly branched polymer (ii) is obtainable by condensation of (ii-1 aa) melamine; (ii-1 b) at least one amine having at least two primary and / or secondary amino groups; and
• (ii-2) optionally at least one amine having a primary amino group.
• the molar ratio of melamine (ii-1 aa) to the total amount of amines (ii-1 b) and (ii-2) is preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, even more preferably 1: 1 to 1: 5 and especially 1: 1, 5 to 1: 5, especially 1: 2 to 1: 4.
• amine of component (ii-1 b) is preferably an amine of the formula I, la or II used, wherein as the amine II, of course, a different amine from melamine is used.
• these amines those with at least two primary amine groups are preferred because of the higher reactivity of primary amino groups. Accordingly, in preferred amines (ii-1 b) of embodiment ii-C in compounds IR a and R b are H, in compound la R a1 and R b1 are H and in compounds II R d , R e and R f is H.
• A is an aliphatic or aliphatic-alicyclic radical.
• primary diamines I with aliphatic groups A are 1,2-ethylenediamine, 1,2- and 1,3-propylenediamine, 2,2-dimethyl-1,3-propanediamine, 1,4-butylenediamine, 1,5-pentylenediamine , Hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine, eicosamethylenediamine, 2-buty
• linear aliphatic groups such as 1, 2-ethylenediamine, 1, 2- and 1, 3-propylenediamine, 1, 4-butylenediamine, 1, 5-pentylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine , Dodecamethylenediamine, tridecamethylenediamine, tetradecamethylenediamine, pentadecamethylenediamine, hexadecamethylenediamine, heptadecamethylenediamine, octadecamethylenediamine, nonadecamethylenediamine and eicosamethylenediamine, wherein linear C2-C6-alkylene groups as group A 2 , as in 1, 2-ethylenediamine, 1, 3-propylenediamine, 1, 4-butylenediamine , 1, 5-pentylenediamine and hexamethylenediamine
• Examples of primary diamines I with aliphatic-alicyclic groups A are diaminodicyclohexylmethane, isophoronediamine, bis (aminomethyl) cyclohexane, such as 1,1-bis (aminomethyl) cyclohexane, 1,2-bis (aminomethyl) cyclohexane, 1,3-bis (aminomethyl) cyclohexane or 1, 4-bis (aminomethyl) cyclohexane, 2-aminopropylcyclohexylamine, 3 (4) -aminomethyl-1-methylcyclohexylamine and the like. Particularly preferred among these is isophoronediamine.
• amines Ia having two primary amino groups such as diethylenetriamine, tetraethylenetriamine, pentaethylenetetramine, hexaethyleneheptamine, and the like.
• amines II in which Y is N are amines II in which Y is N.
• Y is N
• the amine component (ii-1b) used is preferably a diamine, more preferably a primary diamine.
• suitable and preferred (primary) diamines reference is made to the explanations concerning embodiment iB.
• the amine component (ii-1b) used is preferably an amine having at least three primary and / or secondary amino groups, particularly preferably having at least three primary amino groups.
• Preferred amines having at least three primary and / or secondary amino groups are amines of the formulas Ia and II, with amines of the formula II being more preferred. Preferred among these are amines, wherein Y is N.
• R d , R e and R f are preferably H.
• E 1 , E 2 and E 3 are each independently preferably C 2 -C 6 -alkylene.
• Suitable and preferred amines (ii-2) having a primary amino group reference is made to the explanations concerning embodiment (i-A) or (i-Aa). Preferably, however, no component (ii-2) is used.
• component (ii-1) comprises no melamine. In a more preferred embodiment, component (ii-1a) does not comprise melamine.
• the highly branched polymer (ii) is obtainable by condensation of
• Amino groups other than melamine and; (ii-i b) at least one amine having two primary and / or secondary amino groups.
• the molar ratio of amine (ii-1 ab) to amine (ii-1b) is preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, even more preferably 1: 1 to 1: 5 and in particular 1: 1, 5 to 1: 5, especially 1: 2 to 1: 4.
• the preparation is generally carried out by reacting all components (ii-1) and optionally (ii-2) analogously to the manner described for the polymer (i), in which case especially in the case where component (ii-1) comprises melamine , as a catalyst preferably a Brönsted or Lewis acid is used. Suitable and preferred Lewis acids are also described in polymer (i).
• the components (iii-1) and (iii-2) are in a molar ratio of preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, even more preferably 3: 1 to 1: 3 and especially 2.5: 1 to 1: 2.5 used.
• component (iii-1) comprises diisocyanates and polyisocyanates having at least three isocyanate groups
• the molar ratio of the at least one diisocyanate to the at least one polyisocyanate is preferably from 50: 1 to 1:50, more preferably from 20: 1 to 1:20 in particular 10: 1 to 1:10.
• component (iii-2) comprises both amines having two and at least three primary and / or secondary amino groups
• the molar ratio of the at least one amine having at least three primary and / or secondary amino groups to the at least one primary amine is two and / or secondary amino groups preferably 100: 1 to 1:20, particularly preferably 50: 1 to 1:10 and in particular 25: 1 to 1:10.
• At least one diisocyanate is preferably used as component (iii-1). Accordingly, component (iii-2) must comprise at least one amine having at least three primary and / or secondary amino groups.
• the preparation is generally carried out by reacting the components (iii-1) and (iii-2) analogously to the manner described for the polymer (i). If no capped / blocked isocyanate is used as the isocyanate component (iii-1), the condensation reaction for termination must be treated with a terminating reagent.
• Suitable monoamines are methylamine, ethylamine, propylamine, isopropylamine, n-butylamine, sec-butylamine, isobutylamine, tert-butylamine, pentylamine, hexylamine, ethanolamine, propanolamine, isopropanolamine, pentanolamine, (2-methoxyethyl) amine , (2-ethoxyethyl) amine, (3-methoxypropyl) amine, (3-ethoxypropyl) amine, [3- (2-ethylhexyl) propyl] amine, 2- (2-aminoethoxy) ethanol, cyclohexylamine, Aminomethylcyclohexane, aniline, benzylamine and the like.
• a terminating compound containing two or more isocyanate-reactive groups it is also possible to add a terminating compound containing two or more isocyanate-reactive groups.
• two or more polymer arms add to the di- or mer-functional termination compound, resulting in a sharp increase in the average molecular weight of the polymer well above the average molecular weight of the polymer at the time of stopper addition.
• Suitable difunctional or polyfunctional amines are, for example, primary amines having one or more secondary and / or tertiary amino functions, as already described above for the synthesis of the polymers of type (i), or the like.
• the components (iv-1) and (iv-2) are in a molar ratio of preferably 20: 1 to 1:20, more preferably 10: 1 to 1:10, more preferably 5: 1 to 1: 5, even more preferably 3: 1 to 1: 2, in particular 2.5: 1 to 1: 1, 5 and especially 2: 1 to 1: 1 used.
• component (iv-1) comprises dicarboxylic acids or derivatives thereof and polycarboxylic acids having at least three carboxyl groups or derivatives thereof
• the molar ratio of the at least one dicarboxylic acid / of the at least one dicarboxylic acid derivative to at least one polycarboxylic acid / at least one Carboxylic acid derivative preferably 50: 1 to 1:50, particularly preferably 20: 1 to 1:20 and in particular 10: 1 to 1:10.
• component (iv-2) comprises amines having two primary and / or secondary amino groups
• the molar ratio of the at least one amine having at least three primary and / or secondary amino groups to the amine (s) is two primary and / or secondary amino groups preferably 100: 1 to 1:20, particularly preferably 50: 1 to 1:10 and in particular 25: 1 to 1:10.
• component (iv-1) used is preferably a dicarboxylic acid, a dicarboxylic acid derivative or a mixture thereof. Accordingly, in this case as component (iv-2) at least one amine having at least three primary and / or secondary amino groups must be used.
• amines having at least three primary and / or secondary amino groups reference is made to the general explanations of such amines.
• the amine is selected from those of the formulas La and Il.
• the substituted ureas, thiourea, the substituted thioureas, guanidine, the substituted guanidines and the carbonic esters are preferred. More preferred are the substituted ureas, thiourea, guanidine and the carbonic acid esters.
• thiourea N, N'-dimethylurea, N 1 N 1 - diethylurea, N, N'-di-n-butyl urea, N, N'-Diisobutylharnstoff, N, N, N ', N'-tetramethyl urea, guanidine , especially in the form of guanidine carbonate, dimethyl carbonate, diethyl carbonate, ethylene carbonate and 1, 2-propylene carbonate. Even more preferred are the substituted ureas, thiourea and the carbonic acid esters.
• thiourea N, -dimethylurea, N, -diethylurea, N, N ! -Di-n-butylurea, N ⁇ -diisobutylurea, N, N, N 1 , N 1- tetramethylurea, dimethyl carbonate, diethyl carbonate, ethylene carbonate and 1, 2-propylene carbonate.
• urea or a substituted urea of the formula R 1 R 2 NC (OO) -NR 3 R 4 in which R 1 , R 2 , R 3 and R 4 are independently of one another as defined above, is used as component (v-1) , R 1 and R 3 are preferably H or C 1 -C 4 -alkyl, especially methyl or ethyl, and R 2 and R 4 are C 1 -C 4 -alkyl, especially methyl or ethyl.
• Urea itself is particularly preferably used as component (v-1), if appropriate in combination with one of the abovementioned urea derivatives, and in particular only urea.
• amines having at least three primary and / or secondary, preferably primary, amino groups are used.
• compounds II wherein Y is N are used.
• the oligomeric compound (v) is preferably the condensation product of one molecule of urea or urea derivative with one or two molecules of amine having two or preferably three primary and / or secondary, more preferably having three primary amino groups.
• oligomers (v) also arise as by-products in the preparation of the polymers (i) and can be isolated from their reaction mixture, for example by extraction with a solvent in which the polymer (i) is not soluble.
• amines having at least two primary and / or secondary amino groups Preference is given to using amines of the formula I.
• A is an alkylene radical.
• A is C 2 -C 10 -alkylene, more preferably linear C 2 -C 10 -alkylene and in particular linear C 2 -C 6 -alkylene, such as 1, 2-ethylene, 1, 3-propylene, 1, 4-butylene, 1 , 5-pentylene and hexamethylene.
• R a and R b are H.
• the oligomeric compound (vi) is preferably the condensation product of one molecule of melamine with one, two or three molecules of amine.
• the conversion of the condensation reaction is controlled and limited by carrying out the reaction at moderate temperatures and / or after the reaction at higher reaction temperatures, the temperature drops suddenly and thus significantly slows down the reaction rate and
• oligomers (vi) also arise as by-products in the preparation of the polymers (ii) and can be isolated from their reaction mixture, for example by extraction with a solvent in which the polymer (ii) is insoluble.
• the compounds (i) to (vi) are used according to the invention as curing agents for epoxy resins.
• Epoxy resins derived from epichlorohydrin are referred to as glycidyl based resins.
• OR CH 2 - ⁇ wherein n is 0 to about 40.
• epoxy resins are phenolic and cresol-based epoxy novolacs, e.g. Epoxy resins derived from the diglycidyl ether of bisphenol F. Novolacs are produced by the acid-catalyzed condensation of formaldehyde and phenol or cresol. The epoxidation of novolaks leads to epoxy novolacs.
• Epoxy resins derived from the diglycidyl ether of bisphenol F Novolacs are produced by the acid-catalyzed condensation of formaldehyde and phenol or cresol. The epoxidation of novolaks leads to epoxy novolacs.
• glycidyl based epoxy resins are derived from glycidyl ethers of aliphatic diols, such as butane-1, 4-diol, hexane-1, 6-diol, pentaerythritol, or hydrogenated bisphenol A; aromatic glycidylamines, e.g. the triglycidyl adduct of p-aminophenol or the tetraglycidyl amine of methylene dianilide; heterocyclic glycidyl imides and amides, e.g. triglycidyl; and glycidyl esters, e.g. the diglycidyl ester of dimeric linoleic acid.
• aromatic glycidylamines e.g. the triglycidyl adduct of p-aminophenol or the tetraglycidyl amine of methylene dianilide
• the epoxy resins can also be derived from other epoxides (non-glycidyl ether epoxy resins).
• epoxides non-glycidyl ether epoxy resins
• examples are the diepoxides of cycloaliphatic dienes such as 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate and 4-epoxyethyl-1,2-epoxycyclohexane.
• condensation products used in the invention for the curing of epoxy resins based on glycidyl polyethers of bisphenol A, bisphenol F and novolak resins are particularly suitable.
• the hardener used according to the invention is one or more of the condensation products (i) to (vi). These can be used as sole hardeners; However, it is also possible to use them in combination with one or more conventional curing agents for epoxy resins.
• Conventional hardeners include aliphatic and aromatic polyamines, polyamidoamines, urones, amides, guanidines, aminoplasts and phenoplasts, polycarboxylic acid polyesters, di- and polyhydroxy compounds, thiols, imidazoles, imidazolines and certain isocyanates and latent multifunctional hardeners.
• Polyamine hardeners crosslink epoxy resins by reacting the primary or secondary amino functions of the polyamines with terminal epoxide groups of the epoxy resins.
• overall suitable polyamines are, for example, aliphatic polyamines such as ethylenediamine, 1, 2- and 1, 3-propylenediamine, neopentanediamine, hexamethylenediamine, Octamethylendia- min, 1, 10-diaminodecane, 1, 12-diaminododecane, diethylenetriamine, triethylenetetramine, tetraethylenepentamine and the like; Cycloaliphatic diamines, such as 1, 2-diaminocyclohexane, 1, 3-bis (aminomethyl) cyclohexane, 1-methyl-2,4-diaminocyclohexane, 4- (2-aminopropan-2-yl) -1-methylcyclohexan-1 - amine, isophoronediamine, 4,4'-dia
• urones such as 3- (4-chlorophenyl) -1, 1-dimethylurea (monuron), 3- (3,4-dichlorophenyl) -1, 1-dimethylurea (diuron) , 3-phenyl-1, 1-dimethylurea (fenuron), 3- (3-chloro-4-methylphenyl) -1, 1-dimethylurea (chlorotoluron) and the like.
• Suitable hardeners are also carbamides, such as tolyl-2,4-bis (N, N-dimethylcarbamide), and tetraalkylguanidines, such as N, N, N'N'-tetramethylguanidine.
• Polycarboxylic acid polyesters as hardeners are increasingly used in powder coatings.
• the crosslinking takes place due to the reaction of the free carboxyl groups with the epoxide groups of the epoxy resin.
• multifunctional curing agents include aromatic compounds having two or more hydroxy groups.
• examples include resins produced by the implementation of
• Phenol or alkylated phenols such as cresol are obtainable with formaldehyde, for example phenol novolaks, cresol novolaks and dicyclopentadiene novolaks; furthermore resins from nitrogen-containing heteroaromatics, such as benzoguanamine-phenol or cresol-formaldehyde resins, acetoguanamine-phenol or cresol-formaldehyde resins and melamine-phenol or cresol-formaldehyde resins, furthermore hydroxylated arenes, such as hydroquinone, resorcinol, 1, 3,5-trihydroxybenzene, 1, 2,3-trihydroxybenzene (pyrogallol), 1, 2,4-trihydroxybenzene (hydroxyhydroquinone), 3,4,5-trihydroxybenzoic acid (gallic acid) or derivatives thereof, 1, 8,9-trihydroxyanthracene, (Dithranol or 1, 8,9-anthracenetriol), 1, 2, 10-trihydroxyanthracene (
• multifunctional curing agents include thiols, imidazoles such as imidazole, 1-methylimidazole, 2-methylimidazole, 2-ethyl-4-methylimidazole, 1-cyanoethylimidazole and 2-phenylimidazole, and imidazolines such as 2-phenylimidazoline.
• Blocked isocyanates have recently been used as latent hardeners for waterborne coatings.
• reaction products of dicy with amines so-called bisguanidines, such as HAT 2844 from Vantico.
• latent multifunctional hardeners are boron trifluoride amine adducts such as BF3 monoethylamine, and quaternary phosphonium compounds.
• Preferred conventional curing agents are selected from the above-mentioned aliphatic polyamines, cycloaliphatic diamines, polyetheramines and mixtures thereof.
• the weight ratio of the total amount of all hardeners used (i) to (vi) to the total amount of all conventional hardeners used is preferably from 1: 1000 to 100: 1, more preferably from 1: 100 to 50: 1 and in particular from 1: 50 to 30: 1.
• the number of epoxide groups in the epoxy resin is given as a so-called epoxide equivalent.
• the epoxide equivalent is determined according to DIN 16 945.
• the number of reactive groups in the curing agent is calculated in the case of amine hardeners, which include the condensation products used according to the invention, via the amine number in accordance with DIN 16945.
• the curing of the epoxy resins is preferably carried out thermally by heating the
• the curing is preferably carried out by microwave.
• Another object of the invention is a composition
• a composition comprising
• condensation products (i) to (vi) epoxy resins, conventional hardeners and the ratios between epoxy resin and hardener and between inventive and conventional hardeners, reference is made to the above statements.
• the composition may remain stable for a relatively long time only at low temperatures, eg below 25 ° C. or below 20 ° C. or below 10 ° C. or below 5 ° C. or below 0 ° C., so that it is common it is necessary to store them at low temperatures.
• the composition of the invention may also contain other conventional additives. It goes without saying that these additives usually remain in the cured resin unless they are volatile and do not react with the epoxy resin, curing agent (s) or other additives, and volatilize completely or partially during the thermal curing process ,
• Suitable conventional additives include, for example, antioxidants, UV absorbers / light stabilizers, metal deactivators, antistatics, reinforcing agents, fillers, antifogging agents, blowing agents, biocides, plasticizers, lubricants, emulsifiers, colorants, pigments, rheology agents, impact modifiers, catalysts, adhesion regulators, optical brighteners, Flame retardants, anti-dripping agents, nucleating agents, solvents and reactive diluents, and mixtures thereof.
• the optionally used light stabilizers / UV absorbers, antioxidants and metal deactivators preferably have a high migration stability and temperature resistance. They are selected, for example, from groups a) to t).
• the compounds of groups a) to g) and i) represent light stabilizers / UV absorbers, while compounds j) to t) act as stabilizers.
• the group a) of the 4,4-diarylbutadienes include, for example, compounds of the formula A.
• the compounds are known from EP-A-916 335.
• the substituents R 1 and / or R n are preferably C 1 -C 8 -alkyl and C 5 -C 8 -cycloalkyl.
• the group b) of cinnamic acid esters includes, for example, 2-isoamyl 4-methoxycinnamate, 2-ethylhexyl 4-methoxycinnamate, methyl ⁇ -methoxycarbonyl cinnamate, methyl ⁇ -cyano- ⁇ -methyl-p-methoxycinnamate, butyl ⁇ - cyano-.beta.-methyl-p-methoxycinnamate and methyl-.alpha.-methoxycarbonyl-p-methoxycinnamate.
• the group c) of the benzotriazoles includes, for example, 2- (2'-hydroxyphenyl) benzotriazoles, such as 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (3 ', 5'-di-tert-butyl- 2'-hydroxyphenyl) benzotriazole, 2- (5'-tert-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5 '- (1, 1, 3,3-tetramethylbutyl) phenyl) benzotriazole , 2- (3 ', 5'-di-tert-butyl-2'-hydroxyphenyl) -5-chloro-benzotriazole, 2- (3'-tert-butyl-2'-hydroxy-5'-methylphenyl) -5 -chloro-benzotriazole, 2- (3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl) -benzotriazole, 2- (2
• the group d) of the hydroxybenzophenones include, for example, 2-hydroxybenzophenones, such as 2-hydroxy-4-methoxybenzophenone, 2,2'-dihydroxy- 4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2'-dihydroxy-4,4'- dimethoxybenzophenone, 2-hydroxy-4- (2-ethylhexyloxy) benzophenone, 2-hydroxy-4- (n-octyloxy) benzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-3-carboxybenzophenone, 2 -Hydroxy-4-methoxybenzophenone-5-sulfonic acid and its sodium salt, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone-5,5'-bisulf
• the group e) of the diphenylcyanoacrylates includes, for example, ethyl-2-cyano-3,3-diphenylacrylate, which is obtainable, for example, commercially under the name Uvinul® 3035 from BASF AG, Ludwigshafen, 2-ethylhexyl-2-cyano-3, 3-diphenylacrylate, which is commercially available, for example, as Uvinul® 3039 from BASF AG, Ludwigshafen, and 1, 3-bis - [(2'-cyano-3 ', 3'-diphenylacryloyl) oxy] -2,2 bis ⁇ [2'-cyano-3 ', 3'-diphenyl-acryloyl) oxy] methyl ⁇ propane, which is commercially available, for example, under the name Uvinul® 3030 from BASF Aktiengesellschaft, Ludwigshafen.
• the group f) of the oxamides include, for example, 4,4'-dioctyloxyoxanilide, 2,2'-diethoxyoxanilide, 2,2'-dioctyloxy-5,5'-di-tert-butoxanilide, 2,2'-didodecyloxy-5,5 'di-tert-butoxanilide, 2-ethoxy-2'-ethyloxanilide, N, N'-bis (3-dimethylaminopropyl) oxamide, 2-ethoxy-5-tert-butyl-2'-ethoxylanilide and its mixture with 2-ethoxy-2'-ethyloxanilide Ethoxy-2'-ethyl-5,4'-di-tert-butoxanilide and mixtures of ortho, para-methoxy-disubstituted oxanilides and mixtures of ortho and para-ethoxy disubstituted
• Group g) of 2-phenyl-1,3,5-triazines includes, for example, 2- (2-hydroxyphenyl) -1,3,5-triazines such as 2,4,6-tris (2-hydroxy-4-octyloxyphenyl) -1, 3,5-triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1, 3,5-triazine, 2- (2,4-dihydroxyphenyl ) - 4,6-bis (2,4-dimethylphenyl) -1, 3,5-triazine, 2,4-bis (2-hydroxy-4-propyloxyphenyl) - 6- (2,4-dimethylphenyl) -1, 3,5-triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4,6-bis (4-methylphenyl) -1, 3,5-triazine, 2- (2-hydroxy-4-octyloxyphenyl)
• the group h) of the antioxidants include, for example: h.1) alkylated monophenols such as 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2, 6-di-tert-butyl-4-n-butylphenol, 2,6-di-tert-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2- ( ⁇ -methylcyclohexyl) -4, 6-dimethylphenol, 2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, unbranched or branched in the side chain nonylphenols such as 2,6 -Di-nonyl-4-methylphenol, 2,4-dimethyl-6- (1-methylund
• Alkylthiomethylphenole such as 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-didodecylthiomethyl-4-nonylphenol.
• hydroquinones and alkylated hydroquinones such as 2,6-di-tert-butyl-4-methoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone,
• benzyl compounds such as. B. 3,5,3 ', 5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3,5-dimethylbenzylmercaptoacetat, tridecyl-4-hydroxy-3,5-di tert -butylbenzylmercaptoacetate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) amine, 1, 3,5-tri- (3,5-di-tert-butyl-4-hydroxybenzyl) -2 , 4,6-trimethylbenzene, di- (3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, 3,5-di-tert-butyl-4-hydroxybenzylmercapto-acetic acid isooctyl ester, bis (4-tert -butyl-3-hydroxy-2,6-dimethylbenzyl
• hydroxybenzyl aromatics such.
• B. 1, 3,5-tris- (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,4-bis (3,5-di-tert-butyl) 4-hydroxybenzyl) -2,3,5,6-tetramethylbenzene, 2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) phenol.
• triazine compounds such.
• acylaminophenols such as 4-hydroxy-lauric acid anilide, 4-hydroxystearic acid anilide, 2,4-bis-octylmercapto-6- (3,5-di-tert-butyl-4-hydroxyanilino) -s-triazine and octyl-N- (3 , 5-di-tert-butyl-4-hydroxyphenyl) -carbamate.
• esters of ß- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid with monohydric or polyhydric alcohols such.
• the group i) of the nickel compounds include, for. B. nickel complexes of 2,2'-thio-bis [4- (1, 1, 3,3-tetramethylbutyl) phenol], such as the 1: 1 or 1: 2 complex, optionally with additional ligands such n-butylamine, triethanolamine or N-cyclohexyl-diethanolamine, nickel dibutyldithiocarbamate, nickel salts of 4-hydroxy-3,5-di-tert-butylbenzylphosphonic monoalkyl esters such as e.g. As the methyl or ethyl ester, nickel complexes of ketoximes such.
• the group j) of sterically hindered amines include, for.
• the group k) of the metal deactivators include, for. N, N'-diphenyloxalic acid diamide, N-salicylal-N'-salicyloyl-hydrazine, N, N'-bis (salicyloyl) hydrazine, N, N'-bis (3,5-di-tert-butyl-4- hydroxyphenylpropionyl) hydrazine, 3-salicyloylamino-1, 2,4-triazole, bis (benzylidene) oxalyl dihydrazide, oxanilide, isophthaloyl dihydrazide, sebacoyl bisphenyl hydrazide, N, N'-diacetyl adipic dihydrazide, N, N'-bis (salicyloyl) oxalic dihydrazide, N, N '-bis (salicyloyl) thiopropiony
• the group I) of the phosphites and phosphonites include, for.
• the group m) of the hydroxylamines include, for. N, N-dibenzylhydroxylamine, N, N-diethylhydroxylamine, N, N-dioctylhydroxylamine, N, N-dilaurylhydroxylamine, N, N-ditetradecylhydroxylamine, N, N-dihexadecylhydroxylamine, N, N-dioctadecylhydroxylamine, N-hexadecyl N-octadecylhydroxylamine, N-heptadecyl-N-octadecylhydroxylamine, N-methyl-N-octadecylhydroxylamine and N, N-dialkylhydroxylamine from hydrogenated tallow fatty amines.
• the group n) of the nitrenes include, for. N-benzyl- ⁇ -phenylnitrone, N-ethyl- ⁇ -methylnitrone, N-octyl- ⁇ -heptylnitrone, N-lauryl- ⁇ -undecylnitrone, N-tetradecyl- ⁇ -tridecylnitrone, N-hexadecyl- ⁇ -pentadecylnitrone, N-octadecyl- ⁇ -heptadecyl nitrone, N-hexadecyl- ⁇ -heptadecyl nitrone, N-octadecyl- ⁇ -pentadecyl nitrone, N-heptadecyl- ⁇ -heptadecyl nitrone, N-octadecyl- ⁇ -hexadecyl nitrone, N-methyl- ⁇ -hept
• the group o) of the amine oxides include, for.
• amine oxide derivatives as disclosed in U.S. Pat. Nos. 5,844,029 and 5,880,191 didecylmethylamine oxide, tridecylamine oxide, tridodecylamine oxide and trihexadecylamine oxide.
• the group p) of the benzofuranones and indolinones include, for. Those disclosed in U.S. Patents 4,325,863; 4,338,244; 5,175,312; 5,216,052; 5,252,643; in DE-A-4316611; in DE-A-4316622; in DE-A-4316876; or 3- [4- (2-acetoxyethoxy) phenyl] -5,7-di-tert-butylbenzofuran-2-one, 5,7-diol, described in EP-A-0589839 or EP-A-0591102.
• the group q) of the thiosynergists includes, for example, Dilauryl thiodipropionate or distearyl thiodipropionate.
• the group r) the peroxide-destroying compounds include, for. B. esters of ⁇ -Thiodipropionklare, z.
• esters of ⁇ -Thiodipropionklare z.
• the group s) of the polyamine stabilizers include, for example, copper salts in combination with iodides and / or phosphorus compounds and manganese (II) salts.
• the group t) of basic costabilizers include, for. As melamine, polyvinyl pyrrolidone, dicyandiamide, triallyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyurethanes, alkali metal and alkaline earth metal salts of higher fatty acids, eg. Calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium ricinoleate and potassium palmitate, antimony catecholate or zinc catechinate.
• melamine polyvinyl pyrrolidone, dicyandiamide, triallyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyurethanes, alkali metal and alkaline earth metal salts of higher fatty acids, eg. Calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium ricinoleate and
• Suitable antistatics are, for example, amine derivatives, such as N, N-bis (hydroxyalkyl) alkylamines or -alkyleneamines, polyethylene glycol esters and ethers, ethoxylated carboxylic acid esters and amides, glycerol mono- and distearates and mixtures thereof.
• amine derivatives such as N, N-bis (hydroxyalkyl) alkylamines or -alkyleneamines
• polyethylene glycol esters and ethers polyethylene glycol esters and ethers
• ethoxylated carboxylic acid esters and amides glycerol mono- and distearates and mixtures thereof.
• Suitable fillers or reinforcing agents include, for. As calcium carbonate, silicates, talc, mica, kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and flours or fibers of other natural products and synthetic fibers.
• fibrous or powdery fillers are also carbon or glass fibers in the form of glass fabrics, glass mats or glass silk rovings, chopped glass, glass beads and wollstonite into consideration. The incorporation of glass fibers can take place both in the form of short glass fibers and in the form of continuous fibers (rovings).
• Suitable inorganic color pigments are white pigments such as titanium dioxide in its three modifications rutile, anatase or brookite, lead white, zinc white, zinc sulfide or lithopone; Black pigments such as carbon black, iron oxide black, iron manganese black or spinel black; Colored pigments such as chromium oxide, chromium oxide hydrate green, cobalt green or ultramarine green, cobalt blue, iron blue, milori blue, ultramarine blue or manganese blue, ultramarine violet or cobalt and manganese violet, iron oxide red, cadmium sulfoselenide, molybdate red or ultramarine red; Iron oxide brown, mixed brown, spinel and corundum phases or chrome orange; Iron oxide yellow, nickel titanium yellow, chromium titanium yellow, cadmium sulfide, cadmium zinc sulfide, chrome yellow, zinc yellow, alkaline earth chromate, Naples yellow; Bismuth vanadate, effect pigments such as
• suitable organic pigments include aniline black, Anthrapyrimi- dinpigmente, pigments azomethine pigments, anthraquinone pigments, monoazo pigments, disazo, benzimidazolone, quinacridone, quinophthalone, diketopyrrolopyrrole, dioxazine, flavanthrone, Indanthronpig- elements, Indolinonpigmente, isoindoline pigments, isoindolinone pigments, Thioindigopig- elements, metal complex pigments, Perinone pigments, perylene pigments, pyranthrone pigments, phthalocyanine pigments, thioindigo pigments, triaryl carbonium pigments or metal complex pigments.
• pigments mentioned can also function as fillers or reinforcing agents and / or as nucleating agents.
• suitable dyes are: azo dyes, pyrazolone dyes, anthraquinone dyes, perinone dyes, perylene dyes, indigo and thioindigo dyes and azomethine dyes.
• Suitable nucleating agents are, for example, inorganic substances, such as talc, metal oxides, such as titanium dioxide or magnesium oxide, phosphates, carbonates or sulfates of, preferably, alkaline earth metals; organic compounds such as mono- or polycarboxylic acids and the salts thereof, for example 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymeric compounds, such as ionic copolymers (ionomers).
• inorganic substances such as talc, metal oxides, such as titanium dioxide or magnesium oxide, phosphates, carbonates or sulfates of, preferably, alkaline earth metals
• organic compounds such as mono- or polycarboxylic acids and the salts thereof, for example 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate
• polymeric compounds such as ionic copolymers (ion
• compounds of group a) to t), with the exception of the benzofuranones of group p), are usually in amounts of from 0.0001% to 10% by weight, preferably from 0.01% to 1% by weight on the total weight of the composition, contained in the composition according to the invention.
• the composition according to the invention may contain all the lubricants customary for the processing of plastics. Suitable are hydrocarbons, such as oils, paraffins and polyethylene waxes; Fatty alcohols, preferably having 6 to 20 C atoms; ketones; Carboxylic acids, such as fatty acids (eg, montanic acid); oxidized polyethylene waxes; Metal salts of carboxylic acids; Carboxylic acid amides and carboxylic acid esters, wherein the alcohol component is, for example, selected from ethanol, fatty alcohols, glycerol, ethanediol and pentaerythritol and the carboxylic acid component is, for example, selected from long-chain carboxylic acids.
• the composition of the invention may also contain flame retardants (flame retardants).
• flame retardants are organic chlorine and bromine compounds such as chloroparaffins, antimony trioxide, phosphorus compounds such as phosphate esters, aluminum hydroxide, boron compounds, molybdenum trioxide, ferrocene, calcium carbonate or magnesium carbonate.
• Preferred flame retardants are the hydroxides, oxides and hydrated oxides of the (semi-) metals of groups 2, 4, 12, 13,
• Zinc oxide and zinc oxide hydrate Zinc oxide and zinc oxide hydrate.
• nitrogen-based flame retardants are melamine and urea resins, melamine cyanurate and melamine borate.
• phosphorus Phor-based flame retardants are red phosphorus, ammonium polyphosphates, phosphoric acid esters, in particular triaryl phosphates, such as triphenyl phosphate, tribencyl phosphate, tricresyl phosphate, tri (dimethylphenyl) phosphate, benzyldimethyl phosphate, di (dimethylphenyl) phenyl phosphate, resorcinol bis (diphenyl phosphate), Re corcin-bis- [di- (2,6-dimethylphenyl) -phosphate] (PX-200), aluminum diethylphosphinate (Exolit® OP 1230), but also aliphatic phosphates, such as tris (2-chloroisopropyl
• a prepreg containing the composition of the invention.
• a prepreg is an uncured, fiber-reinforced thermoset semi-finished product, i. a fiber mat impregnated with a non or partially cured epoxy resin (including hardener).
• a fiber mat is impregnated with the composition according to the invention.
• Suitable fiber materials include surface treated glass fibers, quartz, boron and graphite fibers (carbon / carbon fibers) as well as fibers of certain aromatic polyamides, also referred to as polyaramides (e.g., Kevlar® from DuPont). Particularly preferred among these are glass fibers.
• Another object of the invention is a cured epoxy resin obtainable by curing uncured or partially cured epoxy resin with a condensation product (i), (ii), (iii), (iv), (v) or (vi) as defined above and optionally at least one conventional hardener for epoxy resins or by curing a composition of the invention or a prepreg according to the invention.
• the cured epoxy resin contains a reinforcing agent.
• a resin is also referred to as a "composite” or composite material.
• Composites are complex materials made of two or more different substances with properties that are not present in the individual substances are.
• one of the substances is an epoxy resin.
• the term includes both heterogeneous mixtures of epoxy resins with other materials, such as minerals, fibers, other plastics or elastomers, as well as homogeneous (single-phase) mixtures of epoxy resins with one or more polymers, which is also referred to as a homologous polymer blend.
• (Heterogeneous) epoxy composites typically contain a fiber as a reinforcing material. Fibrous epoxy composites are typically made by placing strong, continuous fibers in an epoxy / hardener matrix.
• Suitable fiber materials include surface-treated glass fibers, quartz, boron and graphite fibers (carbon / carbon fibers) as well as fibers of certain aromatic polyamides, also referred to as polyaramides (eg Kevlar® from DuPont).
• prepregs preimpregnated fibers
• This is an uncured, fiber-reinforced thermoset semi-finished product, i. a fiber mat impregnated with a non or partially cured epoxy resin (including hardener).
• a fiber e.g. a wire that has been impregnated with an uncured or partially cured epoxy resin (including hardener) is wound into a roll.
• composite panels such as chipboard, fiberboard and hardboard, which usually contain finely divided pieces of wood, such as wood chips or wood fibers, as a filler.
• epoxy laminates are epoxy laminates, particularly printed circuit boards (PCBs) used in computers and electronic devices.
• Electrical laminates are usually made of glass-braided (e-glass) which is impregnated with a non-hardened or partially cured epoxy resin (including hardener) to form a prepreg.
• a multilayer laminate is then composed of multiple layers of prepregs and one or more layers of copper foil. This structure is then cured, preferably under the action of high temperatures (150-180 0 C) and pressures (2-10 MPa).
• the curing time depends on the particular composition of the laminate, the layer thickness and number, the epoxy resin and the curing agent and will be determined in each case by a person skilled in the art.
• the cured epoxy resin contains as reinforcing material glass, boron, carbon or polyaramid fibers and in particular glass fibers.
• the cured epoxy resin is a laminate composed of at least two prepregs according to the invention.
• the laminate also contains a copper foil.
• the epoxy resin is in hardened form.
• the cured epoxy resin according to the invention contains a filler, wherein the filler is preferably selected from minerals and small-particle wood, such as wood chips and wood fibers.
• the invention relates to a process for curing epoxy resins, comprising reacting an uncured or only partially cured epoxy resin with at least one condensation product (i), (ii), (iii), (iv), (v) or (vi) as defined above and optionally mixed with at least one conventional hardener for epoxy resins and the resulting mixture to a temperature of 5 to 150 0 C brings or microwave radiation exposes.
• thermosets are characterized by a high mechanical and chemical stability and are very versatile.
• the products of the preparation examples were either used as such or mixed with a mixture of 70 wt .-% Jeffamin D-230 (polyetheramine of Huntsman Corp .; difunctional, amine-terminated polyetherol; M n about 230 g / mol) and 30 wt .-% isophorone diamine, which is hereinafter referred to as D-230 / IPDA used.
• D-230 / IPDA 30 wt .-% isophorone diamine
• epoxy resin A was Epilox® 19-00 (Leuna Harze GmbH; Leuna, Germany) (epoxy equivalents in accordance with DIN 16 945: 182-192 g / eq .; viscosity (25 0 C) according to DIN 53 015 from 9000 to 13,000 mPa-s Density (20 ° C.) according to DIN 53 217 T.4 1, 17 g / cm 3 ; color number according to Gardner; DIN ISO 4630 ⁇ 2) used.
• the mixture was poured into various forms, degassed in an ultrasonic bath at room temperature and cured in a drying oven at 40 0 C for 16 h.
• Hardener Product from Example 1.1 Amount Hardener: 5 g Amount Epilox®: 17.50 g
• Hardener Mixture: 10 wt .-% product of Example 1.1 and 90 wt .-% D-230 / IPDA. The mixture had an amine value of 513 mg KOH / g amount of hardener: 5 g
• Hardener Mixture: 10% by weight of product from Example 1.2 and 90% by weight D-230 / IPDA. The mixture had an amine value of 495 mg KOH / g
• Amount of hardener 5 g
• Amount of Epilox® 16.05 g
• Hardened product colorless, cloudy
• Hardener Mixture: 10% by weight of product from Example 1.3 and 90% by weight D-230 / IPDA. The mixture had an amine value of 505 mg KOH / g amount of hardener: 5 g Amount Epilox®: 16.40 g
• Hardener Product from Example 1.4 Amount Hardener: 5 g
• Hardener Mixture: 10 wt .-% product of Example 1.4 and 90 wt .-% D-230 / IPDA. The mixture had an amine number of 507 mg KOH / g
• Amount of hardener 5 g
• Amount of Epilox® 16.45 g
• Hardened product colorless, clear
• Hardener Product from Example 1.5 Amount Hardener: 5 g Amount Epilox®: 20.90 g Hardened product: colorless, cloudy
• Amount of hardener 5 g
• Hardened product colorless, clear
• Hardener Mixture: 10% by weight of product from Example 1.7 and 90% by weight D-230 / IPDA. The mixture had an amine value of 508 mg KOH / g
• Amount of hardener 5 g
• Amount of Epilox® 16.50 g
• Hardened product colorless, clear
• Hardener Product from Example 1.1; Comparison: D-230 / IPDA
• the cured product prepared with the curing agent from Example 1.1 had a significantly higher T 9 than the product cured with D-230 / I PDA (139 ° C. vs. 108 ° C.).
• Hardener product from Example 1.5; Comparison: D-230 / IPDA The curing continued with the product from Example 1.5 already at a significantly lower temperature than when using D-230 / IPDA (33 0 C vs. 77 0 C).

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• 2009
  • 2009-04-09 JP JP2011503451A patent/JP2011517716A/ja not_active Ceased
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