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EP0689558A1 - Resines epoxy modifiees par du phosphore, procede pour leur production et leur utilisation - Google Patents

Resines epoxy modifiees par du phosphore, procede pour leur production et leur utilisation

Info

Publication number
EP0689558A1
EP0689558A1 EP94911148A EP94911148A EP0689558A1 EP 0689558 A1 EP0689558 A1 EP 0689558A1 EP 94911148 A EP94911148 A EP 94911148A EP 94911148 A EP94911148 A EP 94911148A EP 0689558 A1 EP0689558 A1 EP 0689558A1
Authority
EP
European Patent Office
Prior art keywords
phosphorus
modified epoxy
epoxy resin
derived
resin according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94911148A
Other languages
German (de)
English (en)
Inventor
Wolfgang Von Gentzkow
Jürgen Huber
Heinrich Kapitza
Wolfgang Rogler
Hans-Jerg Kleiner
Uwe Schönamsgruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Siemens AG
Siemens Corp
Original Assignee
Hoechst AG
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19934308185 external-priority patent/DE4308185A1/de
Priority claimed from DE19944404906 external-priority patent/DE4404906A1/de
Application filed by Hoechst AG, Siemens AG, Siemens Corp filed Critical Hoechst AG
Publication of EP0689558A1 publication Critical patent/EP0689558A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • 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
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • 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
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1405—Polycondensates modified by chemical after-treatment with inorganic compounds
    • C08G59/1422—Polycondensates modified by chemical after-treatment with inorganic compounds containing phosphorus
    • 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
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1488—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing phosphorus
    • 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
    • C08G59/20—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 epoxy compounds used
    • C08G59/22—Di-epoxy compounds
    • C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
    • C08G59/304—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing phosphorus
    • 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
    • C08G59/20—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 epoxy compounds used
    • C08G59/32—Epoxy compounds containing three or more epoxy groups
    • C08G59/3254—Epoxy compounds containing three or more epoxy groups containing atoms other than carbon, hydrogen, oxygen or nitrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/14—Macromolecular materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H05K1/032—Organic insulating material consisting of one material
    • H05K1/0326—Organic insulating material consisting of one material containing O
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
    • H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether

Definitions

  • the present invention deals with novel phosphorus-containing epoxy resins, a process for their preparation and their use.
  • the new phosphorus-containing epoxy resins are particularly notable for their processing-friendly behavior, since they have, among other things, good storage stability.
  • Today epoxy resins are widely used for the production of reactive resin molding materials and coatings with a high level of thermal, mechanical and electrical properties as well as for the production of laminates.
  • the low molecular weight or oligomeric starting components can be used in a wide variety of ways
  • Convert hardeners such as carboxylic acid anhydrides, amines, phenols or isocyanates, or by ionic polymerization, to high-quality thermosetting materials.
  • Another advantage of epoxy resins is their processing behavior. In the initial state, they are low molecular weight or oligomeric and show low viscosity at processing temperatures. They are therefore very suitable for potting complex electrical or electronic components as well as for impregnation and impregnation processes. In the presence of suitable reaction accelerators, they have sufficient pot lives. They are also highly fillable with the usual inorganic inert fillers.
  • epoxy resin molded materials are used today in electrical engineering (hardened epoxy resins) often made the demand for flame retardancy. This means that epoxy resin molding materials must be self-extinguishing and must not spread the fire.
  • the detailed requirements are specified in the standards relating to the respective product.
  • the flammability test according to UL 94V mainly applies to epoxy resin molding materials used in electronics or electrical engineering.
  • Epoxy resin molding materials are generally made flame-retardant today using halogen-containing, especially bromine-containing aromatic components. These are mostly storage components, e.g. Filler or glass fabric containing molding materials that often contain antimony trioxide as a synergist.
  • Storage components e.g. Filler or glass fabric containing molding materials that often contain antimony trioxide as a synergist.
  • the problem here is that in the event of a malfunction, smoldering or burning causes corrosive decomposition products which are ecologically or toxicologically questionable under unfavorable conditions. For a safe one
  • Epoxy resins with chemically bound phosphorus could be obtained by reacting commercially available epoxy resins with P-OH groups of various phosphoric acids, the P-OH group being added to the oxirane ring and at the same time partially causing epoxy polymerization. This results in phosphorus-modified epoxy resins that are still reactive and that are integrated into the network when hardened.
  • reaction products of phosphoric acid monoesters and epoxy resins are also known which still contain free epoxy groups and are curable with conventional crosslinking agents.
  • the object of the invention was therefore to provide phosphorus-modified epoxy resins which, in addition to being flame-retardant, have high storage stability, permit variations in the phosphorus content, are simple and inexpensive to produce and are also particularly suitable for use in electronics and electrical engineering, where high filler contents are common .
  • the present invention now relates to phosphorus-modified epoxy resins with an epoxy value of 0 to about 1 mol / 100 g, containing structural units which are derived
  • the invention relates to methods for producing such phosphorus-modified epoxy resins and to their use for producing moldings, coatings and laminates (composite materials) and these objects themselves.
  • the phosphorus-modified epoxy resins according to the invention generally have a phosphorus content of about 0.5 to 13% by weight, based on the resin. This phosphorus content can be adjusted as required by the molar ratio of polyepoxide compound to phosphinic anhydride / phosphonic anhydride. Due to the functionality of the epoxy resin used, the requirement can further be met that at least one epoxy group per molecule of the phosphorus-modified epoxy resin should preferably be contained on average.
  • the phosphorus-modified epoxy resins according to the invention preferably have a phosphorus content of about 1 to 8% by weight, in particular about 2 to 5% by weight, based on the resin. They are preferably curable. in the
  • Agents preferably contain at least one epoxy group, in particular 1 to 3 epoxy groups per molecule; the average functionality is accordingly preferably at least 1, in particular 1 to 3.
  • the epoxy value is preferably approximately 0.02 to 1 mol / 100 g, particularly preferably approximately 0.02 to 0.6 mol / 100 g.
  • the phosphorus-modified epoxy resins according to the invention generally have an average molecular weight M n (number average; determined by means of gel chromatography; Polystyrene standard) of up to about 10,000, preferably from about 20 to 5000 and in particular from about 400 to 2000.
  • the average molecular weight M n (number average; likewise determined by means of gel chromatography; polystyrene standard) of the building blocks (A) is generally up to about 9000 and is preferably between about 150 and 4000, in particular between about 300 and 1800; they are preferably derived from polyepoxide compounds with an average of 2 to 6 epoxy groups per molecule (a functionality of 2 to 6). These polyepoxide compounds are preferably polyglycidyl ethers based on aromatic amines, polyhydric phenols, hydrogenation products of these phenols and / or novolaks (see below for this).
  • the structural units (B) are preferably derived from phosphinic anhydrides of the formulas (I) and / or (II)
  • R and R independently of one another have a hydrocarbon radical of 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms, of aliphatic and / or aromatic character and which can be interrupted by heteroatoms or heteroatom groups, preferably a saturated or unsaturated, straight-chain or branched aliphatic Rest, such as alkyl, alkenyl, Cycloalkyl, preferably having 1 to 8 carbon atoms, in particular 1 to 6 carbon atoms, such as methyl, ethyl, n- and i-propyl, n-, i- and tert-butyl, the various pentyls and hexyls, or one Aryl or an aralkyl radical, such as unsubstituted or phenyl or naphthyl which is preferably substituted by 1 to 3 alkyl radicals having 1 to 6 C atoms or phenylalkyl having 1 to 6 C atoms in the alkyl radical, for example benzy
  • A has a divalent hydrocarbon radical with 1 to 10 C atoms, preferably 1 to 6 C atoms and in particular 1 to 4 C atoms, which has an aliphatic and / or aromatic character and can be interrupted by heteroatoms or heteroatom groups, preferably a divalent saturated or unsaturated, straight-chain or branched aliphatic radical and in particular an alkylene radical, such as methylene, propylene and the like.
  • the structural units (B) are preferably also derived from phosphonic anhydrides of the formula (III)
  • the phosphorus-modified epoxy resin of the invention essentially has the structure expressed by the formulas (IV), (V) and / or (VI) below
  • R, R 1 and R 3 have the same meaning as under the above formulas (I) to (III);
  • R 2 is the residue of a polyepoxide compound reduced by the glycidyl groups;
  • n integers from 1 to 5, preferably 1 to 3;
  • m integers from 1 to 5, preferably 1 to 3, the sum n + m being an integer from 2 to 6, preferably 2 to 4.
  • R 2 stands for the (n + m) -valent radical reduced by the glycidyl groups
  • a hydrocarbon radical the saturated or unsaturated aliphatic character and / or aromatic character and by heteroatoms, such as oxygen and nitrogen, and by
  • Heteroatom groups such as -NR 1 CO- (R 1 has the same meaning as above), and / or can contain them, this hydrocarbon radical, which generally contains at least 6, preferably at least 12 to 30, carbon atoms, preferably aryl groups, in particular Contains phenyl groups which may be substituted but are preferably unsubstituted;
  • R 2 can also represent various of these residues.
  • R 2 preferably denotes the corresponding radical of a bisphenol A diglycidyl ether, a bisphenol F diglycidyl ether or of their oligomers, a polyglycidyl ether of phenol / formaldehyde or cresol / formaldehyde novolak, a diglycidyl ester of tetrahydrophthalic, phthalic, isophthalic - or terephthalic acid and mixtures of these residues.
  • R 4 is hydrogen and / or the Z-- to C 10 -alkyl radical
  • the indices n and m have the meaning according to the formulas (IV) to (VI)
  • the Index q stands for integers from 0 to 40, preferably 0 to 10
  • the index r stands for integers from 4 to 8.
  • the phosphorus-modified epoxy resins according to the invention can, if appropriate, still contain certain amounts, usually not more than 20% by weight, preferably not more than 15% by weight and in particular not more than 5 to 10% by weight. %, based on the total mixture, contained in other structural units.
  • the phosphorus-modified epoxy resins according to the invention are distinguished in particular by good storage stability.
  • the storage stability expressed by the change in the epoxy value after 96 hours at room temperature and a relative atmospheric humidity of at most 50%, generally does not fall below the value of 90% and is preferably in the range from about 95% to 100%, based on the Initial value with 100%.
  • the phosphorus-modified epoxy resins according to the invention can be prepared, for example, by reacting the polyepoxide compounds according to (A) with the phosphinic and / or phosphonic anhydrides according to (B), preferably in an inert solvent (diluent) or, if the reaction is adapted, also in bulk.
  • polyepoxide compounds used for this purpose according to the invention which are preferably not halogen-modified, can be saturated or unsaturated and also aliphatic, cycloaliphatic, aromatic and / or heterocyclic. They can furthermore contain substituents which do not cause any undesirable side reactions under the mixing or reaction conditions, for example alkyl or aryl substituents, ether groups or the like. Mixtures of different polyepoxide compounds can also be used.
  • polyepoxide compounds preferably have the formula (VIII)
  • these polyepoxide compounds are polyglycidyl ethers based on polyhydric, preferably dihydric alcohols, phenols, hydrogenation products of these phenols and / or novolaks (reaction products of mono- or polyhydric phenols, such as phenol and / or cresols, with aldehydes, especially formaldehyde in Presence of acidic catalysts), which are obtained in a known manner, for example by reacting the respective polyols with epichlorohydrin.
  • polyhydric preferably dihydric alcohols, phenols, hydrogenation products of these phenols and / or novolaks
  • aldehydes especially formaldehyde in Presence of acidic catalysts
  • polyhydric phenols which may be mentioned here are: resorcinol, hydroquinone, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), isomer mixtures of dihydroxydiphenylmethane (bisphenol F), 4,4'-dihydroxydiphenylcyclohexane, 4,4 ' -Dihydroxy-3,3'-dimethyldiphenylpropane, 4,4'-dihydroxydiphenyl, 4,4'-dihydroxybenzophenone, bis- (4-hydroxyphenyl) -
  • 1,1-ethane bis- (4-hydroxyphenyl) -1,1'-isobutane, bis- (4-hydroxy-tert-butylphenyl) -2,2-propane, bis- (2-hydroxynaphthyl) methane, 1,5-dihydroxynaphthalene, tris- (4-hydroxyphenyl) methane, bis- (4-hydroxyphenyl) -1,1 'ether.
  • Bisphenol A and bisphenol F are preferred.
  • polyglycidyl ethers of polyhydric aliphatic alcohols are also suitable as the polyepoxide compound.
  • polyhydric alcohols are 1,4-butanediol, 1,6-hexanediol, polyalkylene glycols, glycerol, trimethylolpropane, bis- (4-hydroxycylohexyl) -2,2-propane and pentaerythritol.
  • polyepoxide compounds are (poly) glycidyl esters, which are obtained by reacting epichlorohydrin or similar epoxy compounds with an aliphatic, cycloaliphatic or aromatic polycarboxylic acid, such as oxalic acid, adipic acid, glutaric acid,
  • Phthalic, isophthalic, terephthalic, tetrahydrophthalic or hexahydrophthalic acid, 2,6-naphthalenedicarboxylic acid and dimerized fatty acids examples for this are Diglycidyl terephthalate and diglycidyl hexahydrophthalate.
  • polyepoxide compounds which contain the epoxy groups in a statistical distribution over the molecular chain and which by emulsion copolymerization using olefinically unsaturated containing these epoxy groups
  • polyepoxide compounds are, for example, those based on heterocyclic ring systems, such as Hydantoine epoxy resins,
  • Triglycidyl isocyanurate and / or its oligomers triglycidyl-p-aminophenol, triglycidyl-p-aminodiphenyl ether, tetraglycidyl diaminodiphenyl methane, tetraglycidyl diaminodiphenyl ether, tetrakis (4-glycidoxyphenylolepinoloxidine) epoxidized, urethane.
  • polyepoxides based on aromatic amines, such as aniline for example
  • N, N-diglycidylaniline, diaminodiphenylmethane and N, N'-dimethylaminodiphenylmethane or sulfone are suitable polyepoxide compounds in the "Handbook of Epoxy Resins" by Henry Lee and Kris Neville, McGraw-Hill Book Company, 1967, in the monograph by Henry Lee "Epoxy Resins", American Chemical Society, 1970, in Wagner / Sarx,
  • Preferred polyepoxide compounds are bisglycidyl ethers based on bisphenol A, bisphenol F and bisphenol S (reaction products of these bisphenols and epichlor (halogen) hydrine) or their oligomers, polyglycidyl ethers of phenol / formaldehyde and / or cresol / formaldehyde novolaks and diglycidyl esters of phthalene , Isophthalic, terephthalic, tetrahydrophthalic and / or
  • Hexahydrophthalic acid preferably have the formulas (I) and / or (II). Representatives here are: dimethylphosphinic anhydride, ethylmethylphosphinic anhydride, diethylphosphinic anhydride, dipropylphosphinic anhydride, ethylphenylphosphinic anhydride and
  • Bisphosphinic anhydrides are: ethane-1, 2-bismethylphosphinic anhydride, ethane-1, 2-bisphenylphosphinic anhydride, propane-1, 3-bismethylphosphinic anhydride, butane-1, 4-bismethylphosphinic anhydride, hexane-1, 6-bismethyl bisphosphinic anhydride, hexane .
  • Suitable phosphonic anhydrides which have the formula (III) are: methanephosphonic anhydride, ethanephosphonic anhydride, n- and / or i-propanephosphonic anhydride,
  • Hexanephosphonic anhydride, octanephosphonic anhydride, decanephosphonic anhydride and benzenephosphonic anhydride is Hexanephosphonic anhydride, octanephosphonic anhydride, decanephosphonic anhydride and benzenephosphonic anhydride.
  • Alkane-bis-alkylphosphinic anhydrides (II) and the phosphonic anhydrides (III) can be seen, for example, from European patent application 0 004 323. With regard to the latter, Houben-Weyl, Meth. D. Organ. Chem. (1963), Vol. XII / 1, page 61 2 as well as to the German laid-open publications 2 758 580 and 4 126 235. In the case of formulas (II) and (III) have the corresponding
  • Anhydride ring structure and / or chain structure Anhydride ring structure and / or chain structure.
  • the anhydrides used according to the invention can contain certain amounts of free acids, depending on their type of preparation, but generally not more than 20% by weight, preferably not more than 15% by weight and in particular not more than 10% by weight.
  • the phosphorus content of the phosphorus-modified epoxy resin according to the invention can be adjusted by varying the equivalent ratio of polyepoxide compound to phosphinic anhydride / phosphonic anhydride.
  • the equivalent ratio between polyepoxide compound and phosphinic and / or phosphonic anhydride is usually 1: 0.1 to 1: 1, preferably 1: 0.1 to 0.8 and in particular 1: 0.1 to 1: 0.4.
  • solution (dilution) is in the middle! are used in the process according to the invention, they are aprotic and preferably polar in character.
  • examples include: N-methylpyrrolidone; Dimethylformamide; Ethers, such as diethyl ether, tetrahydrofuran, dioxane, ethylene glycol mono- or diether, propylene glycol mono- or diether, butylene glycol mono- or diether of monoalcohols with an optionally branched alkyl radical of 1 to 6 carbon atoms; Ketones such as acetone, methyl ethyl ketone, methyl isopropyl ketone, methyl isobutyl ketone, cyclohexanone and the like; Esters such as ethyl acetate, butyl acetate, ethyl glycol acetate, methoxypropyl acetate; halogenated hydrocarbons; (Cyclo) aliphatic and / or
  • the reaction of the polyepoxide compound with the phosphinic and / or phosphonic anhydride generally takes place at temperatures from -20 to 130 ° C., preferably 20 to 90 ° C.
  • the phosphorus-modified epoxy resins where the structural units (B) are derived only from phosphonic anhydrides, can be prepared by using phosphorus-modified epoxides (IX) containing structural units which are derived (A) from polyepoxide compounds at least two epoxy groups per Molecule and (C) of phosphonic acid half-esters, alcohol at temperatures of at least 80 ° C.
  • IX phosphorus-modified epoxides
  • Alcohol is preferably split off at temperatures from 80 to 250 ° C., in particular at 100 to 150 ° C., and under reduced pressure, preferably 100 to 0.1 torr, in particular 5 to 0.5 torr.
  • the alcohol can be split off discontinuously or continuously, the latter, for example, using a thin-film evaporator.
  • Titanium and tin acid esters, metal salts of carboxylic acids, metal cyanides, alcoholates, organic acids and mineral acids and metal oxides are usually used. For example, are suitable
  • the catalysts are in a concentration of 0.01 to
  • the phosphorus-modified epoxy resins (IX) used as starting materials for this variant of the process according to the invention generally have a phosphorus content of 0.5 to 13% by weight, preferably 1 to 8% by weight and in particular 2 to 5% by weight on the resin.
  • Their epoxy content is usually between 0 to 1 mol / 100 g, preferably 0.02 to 1 mol / 100 g, in particular 0.02 to 0.6 mol / 100 g, and their average molecular weight M n (number average, determined by means of gel chromatography; polystyrene standard ) of up to about 10,000, preferably from about 900 to 5000 and in particular from about 400 to 2000.
  • Epoxy groups, per molecule Epoxy groups, per molecule.
  • the average molecular weight M n (number average; likewise determined by means of gel chromatography; polystyrene standard) of the structural units (A) is generally up to about 9000 and is preferably between about 150 and 4000, in particular between about 300 and 1800; they are preferably derived from polyepoxide compounds with an average of 2 to 6 epoxy groups per molecule (a functionality of 2 to 6). These polyepoxide compounds are preferably polyglycidyl ethers based on aromatic
  • the structural units (C) of the starting compounds for this process variant are derived from phosphonic acid semiesters of the formula (X)
  • R 6 is a hydrocarbon radical of 1 to 20 carbon atoms, preferably 1 to
  • R 7 is a hydrocarbon radical of 1 to 10 carbon atoms, preferably 1 to 4 carbon atoms.
  • the hydrocarbon radical in R 6 / R 7 can have an aliphatic and / or aromatic character and can be interrupted by heteroatoms or heteroatom groups. It is preferably a saturated or unsaturated, straight-chain or branched aliphatic radical, such as
  • the starting compounds (IX) used for this process variant are prepared by reacting polyepoxide compounds corresponding to (A) with phosphonic acid semiesters (X) corresponding to (C) at temperatures from -20 ° C. to 150 ° C., preferably 10 ° C. to 100 ° C. and an equivalent ratio of polyepoxide compound to
  • Phosphonic acid semiesters from 1: 0.1 to 1: 1, preferably 1: 0.1 to 1: 0.8. This reaction is preferably carried out in the presence of a solvent which does not hinder the reaction.
  • the solvents mentioned above for the other process variant come into consideration as such.
  • the polyepoxide compounds used for the preparation of the starting compounds (IX) are also the same as those described above.
  • Suitable phosphonic acid semiesters (X) are: methyl methanephosphonate, monoethyl ethanephosphonate,
  • the phosphorus-modified epoxy resins according to the invention can advantageously be used as reactive resins in many fields of application for the production of moldings, prepregs, coatings or laminates (composite materials), in particular for insulation purposes in electrical engineering. They are suitable, for example, for covering, coating and enveloping electronic components, for insulating electrical windings, for

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  • Reinforced Plastic Materials (AREA)

Abstract

La présente invention concerne des résines époxy modifiées par du phosphore, avec un indice époxy de 0 à 1 mol/100 g, contenant des unités structurales qui dérivent: (A) de composés polyépoxy avec au moins deux groupes époxy par molécule et (B) d'anhydrides d'acide phosphinique et/ou d'anhydrides d'acide phosphonique. L'invention concerne également un procédé pour produire ces résines époxy modifiées par du phosphore, et leur utilisation pour la fabrication de corps moulés, de revêtements ou de stratifiés.
EP94911148A 1993-03-15 1994-03-10 Resines epoxy modifiees par du phosphore, procede pour leur production et leur utilisation Withdrawn EP0689558A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4308185 1993-03-15
DE19934308185 DE4308185A1 (de) 1993-03-15 1993-03-15 Phosphormodifizierte Epoxidharze, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE19944404906 DE4404906A1 (de) 1994-02-16 1994-02-16 Verfahren zur Herstellung phosphormodifizierter Epoxidharze
DE4404906 1994-02-16
PCT/EP1994/000748 WO1994021704A1 (fr) 1993-03-15 1994-03-10 Resines epoxy modifiees par du phosphore, procede pour leur production et leur utilisation

Publications (1)

Publication Number Publication Date
EP0689558A1 true EP0689558A1 (fr) 1996-01-03

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EP94911148A Withdrawn EP0689558A1 (fr) 1993-03-15 1994-03-10 Resines epoxy modifiees par du phosphore, procede pour leur production et leur utilisation

Country Status (13)

Country Link
US (1) US5756638A (fr)
EP (1) EP0689558A1 (fr)
JP (1) JPH08507812A (fr)
KR (1) KR960701117A (fr)
CN (1) CN1051325C (fr)
CA (1) CA2158361A1 (fr)
CZ (1) CZ240195A3 (fr)
FI (1) FI954291A0 (fr)
HU (1) HU214503B (fr)
PL (1) PL310628A1 (fr)
RU (1) RU2129570C1 (fr)
SG (1) SG72674A1 (fr)
WO (1) WO1994021704A1 (fr)

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TW294694B (fr) * 1994-09-09 1997-01-01 Siemens Ag
DE4447277A1 (de) * 1994-12-30 1996-07-04 Hoechst Ag Stabilisierte, phosphormodifizierte Epoxidharze und ihre Verwendung
DE19543890A1 (de) * 1995-11-24 1997-05-28 Siemens Ag Flammwidrige Polyamide
DE19608613C2 (de) * 1996-03-06 2002-01-17 Celanese Ventures Gmbh Lagerstabile, phosphormodifizierte Epoxidharze
DE19613063C2 (de) * 1996-04-01 1998-09-17 Clariant Gmbh Phosphormodifizierte Epoxidharze und ein Verfahren zu ihrer Herstellung
DE19613061C2 (de) * 1996-04-01 1998-07-02 Clariant Gmbh Phosphormodifizierte Epoxidharze aus Epoxidharzen und phosphorhaltigen Verbindungen
EP0799846B1 (fr) * 1996-04-01 2000-06-14 Clariant GmbH Mélange de résines époxy, modifiées par du phosphore contenant des résines époxy, des composés contenant du phosphore et un durcisseur
DE19613064C2 (de) * 1996-04-01 1998-12-17 Clariant Gmbh Phosphormodifizierte Epoxidharzmischungen aus Epoxidharzen, phosphorhaltigen Verbindungen und einem Härter, Verfahren zu ihrer Herstellung und ihre Verwendung
DE19613067C2 (de) * 1996-04-01 1998-12-03 Clariant Gmbh Phosphormodifizierte Epoxidharzmischungen aus Epoxidharzen, phosphorhaltigen Verbindungen und einem Härter, ein Verfahren zu deren Herstellung und ihre Verwendung
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Also Published As

Publication number Publication date
WO1994021704A1 (fr) 1994-09-29
HU214503B (hu) 1998-03-30
HU9502640D0 (en) 1995-11-28
HUT73148A (en) 1996-06-28
FI954291L (fi) 1995-09-13
US5756638A (en) 1998-05-26
CN1119446A (zh) 1996-03-27
PL310628A1 (en) 1995-12-27
CA2158361A1 (fr) 1994-09-29
RU2129570C1 (ru) 1999-04-27
SG72674A1 (en) 2000-05-23
KR960701117A (ko) 1996-02-24
CN1051325C (zh) 2000-04-12
FI954291A7 (fi) 1995-09-13
FI954291A0 (fi) 1995-09-13
JPH08507812A (ja) 1996-08-20
CZ240195A3 (en) 1996-01-17

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