WO2015049965A1 - 含リン化合物及びそれを含有する硬化性エポキシ樹脂組成物 - Google Patents
含リン化合物及びそれを含有する硬化性エポキシ樹脂組成物 Download PDFInfo
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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
- C07F9/24—Esteramides
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- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
- C07F9/224—Phosphorus triamides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
- C07F9/24—Esteramides
- C07F9/2404—Esteramides the ester moiety containing a substituent or a structure which is considered as characteristic
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
- C07F9/24—Esteramides
- C07F9/2404—Esteramides the ester moiety containing a substituent or a structure which is considered as characteristic
- C07F9/242—Esteramides the ester moiety containing a substituent or a structure which is considered as characteristic of hydroxyaryl compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
- C07F9/24—Esteramides
- C07F9/2454—Esteramides the amide moiety containing a substituent or a structure which is considered as characteristic
- C07F9/2458—Esteramides the amide moiety containing a substituent or a structure which is considered as characteristic of aliphatic amines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
- C08G59/4071—Curing agents not provided for by the groups C08G59/42 - C08G59/66 phosphorus containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
- C08G59/44—Amides
- C08G59/446—Phosphoramides
Definitions
- the present invention relates to a phosphorus-containing compound, and in particular, includes a reactivity, and can be used to provide a curable epoxy resin composition that can be expected to have flame retardancy, a low dielectric constant, and the like when used in combination with an epoxy compound. It relates to phosphorus compounds.
- Bromine-based flame retardants have good flame retardancy but generate harmful hydrogen halide (hydrogen bromide) gas during combustion. Therefore, their use is being suppressed. Therefore, a composition in which a non-halogen flame retardant, for example, a nitrogen compound, a phosphorus compound, or an inorganic compound is blended with a normal epoxy resin has been developed.
- a non-halogen flame retardant for example, a nitrogen compound, a phosphorus compound, or an inorganic compound
- these flame retardant imparting additives have problems such as insufficient flame retardant effect, adversely affecting the curing of the epoxy resin, and reducing physical properties such as the glass transition temperature of the cured composition. is there.
- Patent Document 1 proposes to use a reactive phosphate ester compound.
- An object of the present invention is to provide a phosphorus-containing compound having reactivity with a glycidyl group, specifically, by having reactivity with a glycidyl group, flame retardancy, low dielectric constant and the like can be expected.
- the object is to provide a phosphorus-containing compound capable of providing a curable epoxy resin composition.
- a phosphorus-containing compound having a specific structure is a compound that can achieve the above object, and have reached the present invention.
- the present invention provides a phosphorus-containing compound represented by the following general formula (I).
- R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group or an aryl group
- R 5 represents an alkyl group
- X represents an oxygen atom or a sulfur atom
- Y represents an oxygen atom, a sulfur atom or ⁇ NR ′
- R ′ represents a hydrogen atom.
- the present invention also provides a reaction method characterized in that the phosphorus-containing compound reacts with an epoxy compound by the following reaction mechanism.
- R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group or an aryl group
- R 5 represents an alkyl group
- X represents an oxygen atom or a sulfur atom
- Y represents an oxygen atom, a sulfur atom or ⁇ NR ′
- R ′ represents a hydrogen atom.
- Ar represents an aromatic group.
- the present invention also provides an epoxy resin curing agent comprising the above phosphorus-containing compound.
- the present invention also provides a curable epoxy resin composition containing the above epoxy resin curing agent.
- the present invention it is possible to provide a phosphorus-containing compound having excellent reactivity with an epoxy resin. By blending this, it is expected that the epoxy resin has flame retardancy, a low dielectric constant, and the like.
- FIG. 1 is a diagram showing a 1 H-NMR chart of the phosphorus-containing compound (I-1) obtained in Example 1.
- FIG. 2 is a 31 P-NMR chart of the phosphorus-containing compound (I-1) obtained in Example 1.
- FIG. 3 is a view showing a GC-MS chart of the phosphorus-containing compound (I-1) obtained in Example 1.
- 4 is a diagram showing a 1 H-NMR chart of the phosphorus-containing compound (I-2) obtained in Example 2.
- FIG. FIG. 5 is a diagram showing a 31 P-NMR chart of the phosphorus-containing compound (I-2) obtained in Example 2.
- 6 is a view showing a GC-MS chart of the phosphorus-containing compound (I-2) obtained in Example 2.
- FIG. 7 is a diagram showing a 1 H-NMR chart of the phosphorus-containing compound (I-3) obtained in Example 3.
- FIG. 8 is a diagram showing a 31 P-NMR chart of the phosphorus-containing compound (I-3) obtained in Example 3.
- FIG. 9 is a view showing a GC-MS chart of the phosphorus-containing compound (I-3) obtained in Example 3.
- 10 is a view showing a 1 H-NMR chart of the phosphorus-containing compound (I-9) obtained in Example 4.
- FIG. FIG. 11 is a 31 P-NMR chart of the phosphorus-containing compound (I-9) obtained in Example 4.
- 12 is a view showing a 1 H-NMR chart of S4 obtained in Example 5.
- FIG. 13 is a view showing a 31 P-NMR chart of S4 obtained in Example 5.
- FIG. 14 is a GC-MS chart of S4 obtained in Example 5.
- FIG. 15 is a view showing a 1 H-NMR chart of S5 obtained in Example 6.
- FIG. 16 is a view showing a 31 P-NMR chart of S5 obtained in Example 6.
- FIG. 17 is a view showing a GC-MS chart of S5 obtained in Example 6.
- the phosphorus-containing compound of the present invention is a novel compound represented by the general formula (I), and has a group having reactivity with a glycidyl group in its structure.
- examples of the alkyl group represented by R ′ include a methyl group, an ethyl group, a propyl group, and isopropyl.
- examples of the alkyl group represented by R ′ include a methyl group, an ethyl group, a propyl group, and isopropyl.
- Examples thereof include an alkyl group having 1 to 10 carbon atoms.
- R 1 , R 2 , R 3 , R 4 and Y are ⁇ NR ′
- examples of the aryl group represented by R ′ include a phenyl group and a naphthyl group.
- an aryl group having 1 to 5 carbon atoms is preferred as R 1 , R 2 , R 3 and R 4 .
- Examples of the alkyl group represented by R 5 include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a tertiary butyl group, an amyl group, an isoamyl group, a tertiary amyl group, a hexyl group, Examples include an isohexyl group, an octyl group, a 2-ethylhexyl group, a tertiary octyl group, a nonyl group, an alkyl group having 1 to 10 carbon atoms of a decyl group, and the alkanediyl group represented by R 5 includes, for example, a methylene group , An alkanediyl group having 1 to 10 carbon atoms such as an ethylene group, a propylene group, a butylene group and an octylene group.
- alkanetriyl group represented by R 3 examples include methylenetriyl, 1,1, Examples include alkanetriyl groups having 1 to 6 carbon atoms such as 3-ethylenetriyl group. Examples of alkanetetrayl groups include 1,1,2,2-ethylenetriyl groups. The include alkanetriyl group having 2 to 6 carbon atoms.
- Examples of the aromatic group represented by R 5 include mononuclear polyhydric phenol compounds such as hydroquinone, resorcin, pyrocatechol, and phloroglucinol; dihydroxynaphthalene, biphenol, methylene bisphenol (bisphenol F), methylene bis (orthocresol) ), Ethylidene bisphenol, isopropylidene bisphenol (bisphenol A), isopropylidene bis (orthocresol), tetrabromobisphenol A, 1,3-bis (4-hydroxycumylbenzene), 1,4-bis (4-hydroxyc) Milbenzene), 1,1,3-tris (4-hydroxyphenyl) butane, 1,1,2,2-tetra (4-hydroxyphenyl) ethane, thiobisphenol, sulfonylbisphenol, oxybisphenol
- Examples thereof include polynuclear polyphenol compounds such as phenol novolak, orthocresol novolak, ethylphenol novol
- Examples of the phosphorus-containing compound of the present invention include compounds represented by the following formulas (I-1) to (I-9).
- R 1 , R 2 , R 3 and R 4 in the general formula (I) are independent of each other from the viewpoint of the phosphorus content in the phosphorus-containing compound and the availability of raw materials.
- Particularly preferred are compounds in which R 1 represents an alkyl group having 1 to 5 carbon atoms, R 5 represents an aromatic group represented by the above formulas (1) to (9), and X and Y represent oxygen atoms.
- the method for producing the phosphorus-containing compound of the present invention can be produced by a method such as the following formula (A) or formula (B).
- a method such as the following formula (A) or formula (B).
- R 1 to R 5 , X and Y have the same meaning as in the general formula (I).
- R 1 to R 5 , X and Y have the same meaning as in the general formula (I).
- Examples of the base used herein include tertiary amines such as triethylamine, tributylamine, diazabicycloundecene, diazabicyclononene, 1,4-diazabicyclo [2.2.2] octane, pyridine, N Pyridines such as N-dimethylaminopyridine, imidazoles such as 1-methylimidazole, phosphines such as triphenylphosphine, tributylphosphine, and tricyclohexylphosphine.
- tertiary amines such as triethylamine, tributylamine, diazabicycloundecene, diazabicyclononene, 1,4-diazabicyclo [2.2.2] octane
- pyridine N Pyridines such as N-dimethylaminopyridine, imidazoles such as 1-methylimidazole, phosphines
- Examples of the solvent (solv) used here include ketones such as methyl ethyl ketone, methyl amyl ketone, diethyl ketone, acetone, methyl isopropyl ketone, propylene glycol monomethyl ether acetate, and cyclohexanone; tetrahydrofuran, 1,2-dimethoxyethane, Ethers such as 1,2-diethoxyethane and propylene glycol monomethyl ether; esters such as ethyl acetate and n-butyl acetate; aromatic hydrocarbons such as benzene, toluene and xylene; carbon tetrachloride, chloroform, trichloroethylene, And halogenated aliphatic hydrocarbons such as methylene chloride; halogenated aromatic hydrocarbons such as chlorobenzene.
- ketones such as methyl ethyl ketone, methyl amyl ketone, diethyl
- the phosphorus-containing compound of the present invention reacts efficiently with an epoxy compound (epoxy resin) by the following reaction mechanism, it can be preferably used as an epoxy resin curing agent.
- R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group or an aryl group
- R 5 represents an alkyl group
- X represents an oxygen atom or a sulfur atom
- Y represents an oxygen atom, a sulfur atom or ⁇ NR ′
- R ′ represents a hydrogen atom.
- Ar represents an aromatic group.
- examples of the aromatic group represented by Ar include the aryl group represented by R 1 and the like, the groups exemplified as the aromatic group represented by R 5 in the description of the general formula (I), and the like. Is mentioned.
- the epoxy resin curing agent of the present invention only needs to contain at least one phosphorus-containing compound of the present invention, and can be used alone or in combination.
- a known epoxy resin curing agent can be used.
- curing agent the general purpose epoxy resin hardening
- the content of the phosphorus-containing compound of the present invention is preferably 5 to 100% by mass, more preferably 20 to 100% by mass.
- the curable epoxy resin composition of the present invention is a combination of an epoxy resin curing agent containing the phosphorus-containing compound of the present invention and an epoxy compound (epoxy resin).
- Examples of the epoxy compound used in the curable epoxy resin composition of the present invention include polyglycidyl ether compounds of mononuclear polyhydric phenol compounds such as hydroquinone, resorcin, pyrocatechol, and phloroglucinol; dihydroxynaphthalene, biphenol, Methylene bisphenol (bisphenol F), methylene bis (orthocresol), ethylidene bisphenol, isopropylidene bisphenol (bisphenol A), isopropylidene bis (orthocresol), tetrabromobisphenol A, 1,3-bis (4-hydroxycumylbenzene) 1,4-bis (4-hydroxycumylbenzene), 1,1,3-tris (4-hydroxyphenyl) butane, 1,1,2,2-tetra (4-hydroxyphenyl) ethane Polyglycidyl ether compounds of polynuclear polyhydric phenol compounds such as thiobisphenol, sulfonylbisphenol, oxy
- heterocyclic compounds such as conjugated diene polymers and triglycidyl isocyanurate.
- These epoxy compounds may be those internally crosslinked by a prepolymer of a terminal isocyanate or those having a high molecular weight with a polyvalent active hydrogen compound (polyhydric phenol, polyamine, carbonyl group-containing compound, polyphosphate ester, etc.). .
- the epoxy compound is preferably one having an epoxy equivalent of 70 to 3000, and more preferably 90 to 2000. If the epoxy equivalent is less than 70, the physical properties of the cured product may be lowered, and if it is greater than 3000, sufficient curability may not be obtained.
- the amount of the epoxy resin curing agent comprising the phosphorus-containing compound of the present invention and the amount of the epoxy compound used is preferably an epoxy compound relative to 1 equivalent of the phosphorus-containing compound of the present invention. 0.1 to 5 equivalents, more preferably 1 to 3 equivalents.
- a curing catalyst As such a curable catalyst, p-dimethylaminopyridine, triphenylphosphine, imidazole, tertiary amine, phosphine, quaternary ammonium salt, and quaternary phosphonium salt are used.
- a general-purpose epoxy resin curing agent can be used for the curable epoxy resin composition of the present invention.
- the epoxy resin curing agent include imidazoles such as 2-ethyl-4-methylimidazole, 1,2-dimethylimidazole, 1- (2-methylimidazol-1-ylmethyl) naphthalen-2-ol; diethylenetriamine, Polyalkylpolyamines such as triethylenetriamine and tetraethylenepentamine; alicyclic polyamines such as 1,2-diaminocyclohexane, 1,4-diamino-3,6-diethylcyclohexane and isophoronediamine; m-xylylenediamine And aromatic polyamines such as diaminodiphenylmethane and diaminodiphenylsulfone.
- polyamines and glycidyl ethers such as phenyl glycidyl ether, butyl glycidyl ether, bisphenol A-diglycidyl ether, bisphenol F-diglycidyl ether, or various epoxy resins such as glycidyl esters of carboxylic acid are used in a conventional manner.
- a polyepoxy addition modification product produced by reacting with a carboxylic acid such as phthalic acid, isophthalic acid, dimer acid, etc.
- polyamines and aldehydes such as formaldehyde and phenols having at least one aldehyde-reactive site in the nucleus such as phenol, cresol, xylenol, tert-butylphenol, and resorcin are prepared by a conventional method. Mannich-modified products, etc. which is produced by response and the like. Furthermore, latent curing agents such as dicyandiamide, acid anhydrides, and imidazoles can also be used.
- the curable epoxy resin composition of the present invention includes a reactive or non-reactive diluent (plasticizer) such as monoglycidyl ethers, dioctyl phthalate, dibutyl phthalate, benzyl alcohol, coal tar and the like, if necessary.
- a reactive or non-reactive diluent such as monoglycidyl ethers, dioctyl phthalate, dibutyl phthalate, benzyl alcohol, coal tar and the like, if necessary.
- Fillers such as glass fiber, carbon fiber, cellulose, silica sand, cement, kaolin, clay, aluminum hydroxide, bentonite, talc, silica, fine powder silica, titanium dioxide, carbon black, graphite, iron oxide, and bitumen Pigment: ⁇ -aminopropyltriethoxysilane, N- ⁇ - (aminoethyl) - ⁇ -aminopropyltriethoxysilane, N- ⁇ - (aminoethyl) -N′- ⁇ - (aminoethyl) - ⁇ -aminopropyl Triethoxysilane, ⁇ -anilinopropyltriethoxysilane, ⁇ -glycidoxy Propyltriethoxysilane, ⁇ - (3,4-epoxycyclohexyl) ethyltriethoxysilane, vinyltriethoxysilane, N- ⁇ - (N-vinylbenzy
- the curable epoxy resin composition of the present invention includes, for example, paints or adhesives for concrete, cement mortar, various metals, leather, glass, rubber, plastic, wood, cloth, paper, etc .; packaging adhesive tape, adhesive label, frozen Food labels, removable labels, POS labels, adhesive wallpaper, adhesives for adhesive flooring; art paper, lightweight coated paper, cast coated paper, coated paperboard, carbonless copiers, impregnated paper and other processed paper; natural fiber, synthetic Fiber treatment agents such as fibers, glass fibers, carbon fibers, metal fibers, etc., fiber treatment agents such as fraying prevention agents and processing agents; building materials such as sealing materials, cement admixtures and waterproofing materials; sealants for electronic and electrical equipment, etc. It can be used for a wide range of applications.
- the aerobic layer was washed with 10 mL of water, dried over anhydrous magnesium sulfate, and the solvent was removed with an evaporator to obtain a pale yellow liquid (crude yield 93.3%, GC purity 70.5%).
- the identification results are shown in FIG. 1 ( 1 H-NMR), FIG. 2 ( 31 P-NMR) and FIG. 3 (GC-MS).
- Example 5 According to the following reaction formula, 57.1 mg (0.25 mmol) of the phosphorus-containing compound [I-2] obtained in Example 2 and 51.6 mg of Adekaglycilol ED-509S (in the presence of 2.3 mg (7.5 mol%) of DMPA catalyst ( 0.25 mmol) was reacted at 140 ° C. for 2 hours under a nitrogen stream. From 1 H-NMR (FIG. 12), 31 P-NMR (FIG. 13) and GC-MS (FIG. 14), it was confirmed that S4 was obtained as the main product.
- Example 6 According to the following reaction formula, 50.0 mg (0.25 mmol) of the phosphorus-containing compound [I-3] obtained in Example 3 and 51.6 mg of Adekaglycilol ED-509S (in the presence of 2.3 mg (7.5 mol%) of DMPA catalyst 0.25 mmol) was reacted at 130 ° C. for 2 hours under a nitrogen stream. From 1 H-NMR (FIG. 15), 31 P-NMR (FIG. 16) and GC-MS (FIG. 17), it was confirmed that S5 was obtained as the main product.
- Example 7 Adeka Resin EP-4100L 1.02 g (100.0 phr.), The phosphorus-containing compound [I-9] of the present invention 0.16 g (15.7 phr.) And 2-ethyl-4-methylimidazole 0.03 g (3.0 phr.) Were mixed, Heating at 150 ° C. for 3 hours in a thermostatic bath, followed by heating at 180 ° C. for 3 hours, a brown cured product having no tack was obtained. It was 140 degreeC when Tg of this hardened
- the phosphorus-containing compound of the present invention has reactivity with a glycidyl group.
- the phosphoric acid ester of the present invention By blending the phosphoric acid ester of the present invention into the epoxy resin composition, it is possible to provide a cured epoxy resin that can be expected to have a flame retardancy and a low dielectric constant by suppressing a decrease in physical properties of the cured product. .
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Abstract
Description
しかし、これらの難燃剤で充分な難燃性を付与するには多量に配合する必要があり、多量に配合して難燃性を満足すると、ガラス転移温度が低下し、逆に、ガラス転移温度を高くするために、難燃剤の配合量を少量にすると、難燃性が不足する。また、特許文献2には、反応性のリン酸エステル化合物を用いることが提案されているが、リン酸エステルが樹脂中に組み込まれると吸湿し易くなったり、一部が3次元構造になってエポキシ樹脂の粘度が増大し、作業性が大きく低下したりするため、実用的ではなかった。
本発明の含リン化合物は、一般式(I)で表される新規化合物であり、その構造中に、グリシジル基との反応性を有する基を有する。
R5で表されるアルキル基としては、例えば、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、第三ブチル基、アミル基、イソアミル基、第三アミル基、ヘキシル基、イソヘキシル基、オクチル基、2-エチルヘキシル基、第三オクチル基、ノニル基、デシル基の炭素数1~10のアルキル基等が挙げられ、R5で表されるアルカンジイル基としては、例えばメチレン基、エチレン基、プロピレン基、ブチレン基、オクチレン基等の炭素数1~10のアルカンジイル基が挙げられ、R3で表されるアルカントリイル基としては、例えば、メチレントリイル、1,1,3-エチレントリイル基等の炭素数1~6のアルカントリイル基が挙げられ、アルカンテトライル基としては、1,1,2,2-エチレントリイル等の炭素数2~6のアルカントリイル基が挙げられる。
R5で表される芳香族基としては、例えば、ハイドロキノン、レゾルシン、ピロカテコール、フロログルクシノール等の単核多価フェノール化合物;ジヒドロキシナフタレン、ビフェノール、メチレンビスフェノール(ビスフェノールF)、メチレンビス(オルトクレゾール)、エチリデンビスフェノール、イソプロピリデンビスフェノール(ビスフェノールA)、イソプロピリデンビス(オルトクレゾール)、テトラブロモビスフェノールA、1,3-ビス(4-ヒドロキシクミルベンゼン)、1,4-ビス(4-ヒドロキシクミルベンゼン)、1,1,3-トリス(4-ヒドロキシフェニル)ブタン、1,1,2,2-テトラ(4-ヒドロキシフェニル)エタン、チオビスフェノール、スルホニルビスフェノール、オキシビスフェノール、フェノールノボラック、オルソクレゾールノボラック、エチルフェノールノボラック、ブチルフェノールノボラック、オクチルフェノールノボラック、レゾルシンノボラック、テルペンフェノール等の多核多価フェノール化合物等が挙げられ、中でも下記式(1)~(9)で表される基が好ましい。
回転子、還流管及びセプタムを備えた100mL三口フラスコに、4-メチルアミノピリジン(DMAP)0.1g(1mmol)を仕込んだ。十分に乾燥、窒素置換し、シリンジでフェノール0.9g(10mmol)、超脱水テトラヒドロフラン10mLを仕込んだ。ビス(ジメチルアミノ)ホスホリルクロリド2.0g(12mmol)を反応温度が30℃を超えないようにシリンジで滴下した。滴下終了後、10分間攪拌し、トリエチルアミン1.2 g(12mmol)を反応温度が40℃を超えないようにシリンジで滴下した。滴下終了後、一晩攪拌した。反応溶液に、飽和アンモニウムクロリド水溶液5mL及び水5mLを加え良く攪拌した。反応溶液を分液漏斗に移し、ジエチルエーテル10mLで3回抽出し、有気層を得た。有気層を水10mLで洗浄、無水硫酸マグネシウムで乾燥、エバポレーターで溶媒を除去し、淡黄色液体を得た(粗収率93.3%、GC純度70.5%)。粗生成物をカラムクロマトグラフィー(固定相:シリカゲル、移動相:酢酸エチル(2vol)/ヘキサン(1vol)、Rf=0.20)で精製することで、目的の含リン化合物〔I-1〕を得た(無色液体、総収率:44.0%、GC純度:>99%、31P-NMR:15.94ppm)。同定結果を図1(1H-NMR)、図2(31P-NMR)及び図3(GC-MS)に示す。
回転子、還流管及びセプタムを備えた100mL三口フラスコを十分に乾燥、窒素置換した。食塩/氷水バスで冷却しながら、エチルアミンテトラヒドロフラン溶液 9.5g(21mmol)、トリエチルアミン2.1g(21mmol)及び超脱水テトラヒドロフラン5mLを仕込んだ。5分間攪拌した後、リン酸フェニルジクロリド2.1g(10mmol)を反応温度が0℃を超えないようにシリンジで滴下した。滴下終了後、さらに1時間攪拌した。食塩/氷水バスを除去し、室温で一晩攪拌した。反応溶液に飽和アンモニウムクロリド水溶液5mL、水 5mLを加え良く攪拌した。溶液を分液漏斗に移し、酢酸エチル10mLで3回抽出し、有気層を得た。有気層を水10mLで洗浄、無水硫酸マグネシウムで乾燥、エバポレーターで溶媒を除去し、淡黄色液体を得た(粗収率92.9%、GC純度98.5%)。粗生成物をカラムクロマトグラフィー(固定相:シリカゲル、移動相:酢酸エチル、Rf=0.23)で精製することで目的の含リン化合物〔I-2〕を得た(無色液体、総収率:73.8%、GC純度:>99%、31P-NMR:12.01ppm)。同定結果を図4(1H-NMR)、図5(31P-NMR)及び図6(GC-MS)に示す。
回転子、還流管及びセプタムを備えた100mL三口フラスコを十分に乾燥、窒素置換した。食塩/氷水バスで冷却しながら、メチルアミンテトラヒドロフラン溶液 9.0g(21mmol)トリエチルアミン2.1g(21mmol)及び超脱水テトラヒドロフラン5mLを仕込んだ。5分間攪拌した後、リン酸フェニルジクロリド2.1g(10mmol)を反応温度が0℃を超えないようにシリンジで滴下した。滴下終了後、さらに1時間攪拌した。食塩/氷水バスを除去し、室 温で一晩攪拌した。反応溶液にアセトン10mLを加え良く攪拌し、濾過で固形分と濾液に分離した。得られた固形分にアセトン10mLを加え良く攪拌し、再度固形分と濾液に分離した。同様の手順で固形分を再度アセトンで洗浄した。全ての濾液を回収し、エバポレーターで溶媒を除去し、淡黄色結晶を得た(粗収率110.3%、GC純度95.5%)。粗生成物をカラムクロマトグラフィー(固定相:シリカゲル、移動相:酢酸エチル(6vol)/メタノール(1vol)、Rf=0.46)することで目的の含リン化合物〔I-3〕を得た(白色結晶、総収率:56.5%、GC純度:97.4%、31P-NMR:15.27ppm)。同定結果を図7(1H-NMR)、図8(31P-NMR)及び図9(GC-MS)に示す。
回転子、還流管及びN2導入口を備えた30 mL二口フラスコに、塩化マグネシウム0.03g(0.3 mmol)、4,4'-メチレンジフェノール2.00 g( 10 mmol)及びオキシ塩化リン30.67 g(200mmol)を仕込んだ。N2を導入しながら反応溶液が還流するまで加熱し、そのままの温度で一晩撹拌した。導入したN2は還流管上部より排気し、排気は全て水酸化ナトリウム水溶液にバブリングさせ、反応で発生する塩化水素をトラップした。反応後、エバポレーターで過剰量のオキシ塩化リンを除去し、黄色の液体を得た(中間体)。得られた中間体は脱水テトラヒドロフラン10mLで溶解し、中間体のTHF溶液を調製した。次に、回転子、還流管及びセプタムを備えた100 mL三口フラスコを十分に乾燥、窒素置換した。食塩/氷水バスで冷却しながら、メチルアミンテトラヒドロフラン溶液18.08 g(42 mmol)、トリエチルアミン4.25 g(42 mmol)を仕込んだ。5分間撹拌した後、中間体のTHF溶液を反応温度が20℃を超えないようにシリンジで滴下した。滴下終了後、さらに1時間撹拌した。食塩/氷水バスを除去し、室温で一晩撹拌した。反応後、エバポレーターで溶媒及び過剰量の原料を除去し、淡黄 色固体を得た。粗生成物をカラムクロマトグラフィー(固定相:シリカゲル、移動相:酢酸エチル(5 vol.)/メタノール(1 vol.)、Rf=0.29)することで目的の含リン化合物[I-9]を得た(白色固体、総収率:35.2%)。同定結果を図10(1H-NMR)及び図11(31P-NMR)に示す。
下記反応式に従い、DMPA 2.3 mg(7.5mol%)触媒存在下、実施例2で得られた含リン化合物〔I-2〕57.1mg(0.25mmol)とアデカグリシロールED-509S 51.6mg(0.25mmol)を窒素気流下、140℃で2時間反応させた。1H-NMR(図12)、31P-NMR(図13)及びGC-MS(図14)から、S4が主生成物で得られることを確認した。
下記反応式に従い、DMPA 2.3 mg(7.5mol%)触媒存在下、実施例3で得られた含リン化合物〔I-3〕50.0mg(0.25mmol)とアデカグリシロールED-509S 51.6mg(0.25mmol)を窒素気流下、130℃で2時間反応させた。1H-NMR(図15)、31P-NMR(図16)及びGC-MS(図17)から、S5が主生成物で得られることを確認した。
アデカレジンEP-4100L 1.02 g(100.0 phr.)、本発明の含リン化合物[I-9] 0.16 g(15.7 phr.)及び2-エチル-4-メチルイミダゾール 0.03 g(3.0 phr.)を混合し、恒温槽で150℃で3 時間、続いて180℃で3 時間加熱しタックのない褐色の硬化物を得た。この硬化物のTgをDSCで調べたところ140℃であった。
Claims (6)
- 上記一般式(I)において、R1、R2、R3及びR4が互いに独立して炭素数1~5のアルキル基を表し、R5が上記式(1)~(9)で表される芳香族基を表し、X及びYが酸素原子を表すことを特徴とする請求項1又は2記載の含リン化合物。
- 請求項1~3の何れか1項に記載の含リン化合物を含有してなるエポキシ樹脂硬化剤。
- 請求項5に記載のエポキシ樹脂硬化剤を含有してなる硬化性エポキシ樹脂組成物。
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| CN201480049257.4A CN105764910A (zh) | 2013-10-01 | 2014-09-10 | 含磷化合物以及含有该化合物的固化性环氧树脂组合物 |
| KR1020167005774A KR102320939B1 (ko) | 2013-10-01 | 2014-09-10 | 인 함유 화합물 및 그것을 함유하는 경화성 에폭시 수지 조성물 |
| JP2015540441A JP6499968B2 (ja) | 2013-10-01 | 2014-09-10 | 含リン化合物及びそれを含有する硬化性エポキシ樹脂組成物 |
| EP14850484.8A EP3053928A4 (en) | 2013-10-01 | 2014-09-10 | Phosphorus-containing compound, and curable epoxy resin composition containing same |
| BR112016005231-5A BR112016005231B1 (pt) | 2013-10-01 | 2014-09-10 | Composto contendo fósforo, processo, agente de cura de resina epóxi, e, composição de resina epóxi curável |
| US14/915,766 US9738667B2 (en) | 2013-10-01 | 2014-11-10 | Phosphorus-containing compound and curing epoxy resin composition containing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016152839A1 (ja) * | 2015-03-23 | 2016-09-29 | 株式会社Adeka | エポキシ樹脂組成物 |
| JP2019038988A (ja) * | 2017-08-23 | 2019-03-14 | 株式会社Adeka | 難燃性エポキシ樹脂組成物 |
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| WO2020197561A1 (en) * | 2019-03-28 | 2020-10-01 | Safran Cabin Inc. | Fire retardant epoxy resin |
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Cited By (4)
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| WO2016152839A1 (ja) * | 2015-03-23 | 2016-09-29 | 株式会社Adeka | エポキシ樹脂組成物 |
| US10655005B2 (en) | 2015-03-23 | 2020-05-19 | Adeka Corporation | Epoxy resin composition |
| JP2019038988A (ja) * | 2017-08-23 | 2019-03-14 | 株式会社Adeka | 難燃性エポキシ樹脂組成物 |
| JP7066268B2 (ja) | 2017-08-23 | 2022-05-13 | 株式会社Adeka | 難燃性エポキシ樹脂組成物 |
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| JPWO2015049965A1 (ja) | 2017-03-09 |
| CN105764910A (zh) | 2016-07-13 |
| KR102320939B1 (ko) | 2021-11-03 |
| EP3053928A1 (en) | 2016-08-10 |
| KR20160065814A (ko) | 2016-06-09 |
| US9738667B2 (en) | 2017-08-22 |
| US20160200747A1 (en) | 2016-07-14 |
| TW201518312A (zh) | 2015-05-16 |
| CN112029073A (zh) | 2020-12-04 |
| BR112016005231B1 (pt) | 2021-04-13 |
| TWI623547B (zh) | 2018-05-11 |
| JP6499968B2 (ja) | 2019-04-10 |
| EP3053928A4 (en) | 2017-03-01 |
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