POLYARYLETHERSULFONE RESIN MATERIAL FOR ELECTRONIC APPARATUS OR DEVICE, ELECTRONIC APPARATUS OR DEVICE USING SAME, AND METHOD FOR USING POLYARYLETHERSULFONE FOR ELECTRONIC APPARATUS OR DEVICE
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
POLYARYLETHERSULFONE RESIN MATERIAL FOR ELECTRONIC EQUIPMENT/DEVICE, ELECTRONIC EQUIPMENT/DEVICE USING SAME, AND METHOD FOR USING POLYARYLETHERSULFONE IN ELECTRONIC EQUIPMENT/DEVICE
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
POLYARYLETHERSULFONE RESIN MATERIAL FOR ELECTRONIC EQUIPMENT/DEVICE, ELECTRONIC EQUIPMENT/DEVICE USING SAME, AND METHOD FOR USING POLYARYLETHERSULFONE IN ELECTRONIC EQUIPMENT/DEVICE
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 65/48 - Polymers modified by chemical after-treatment
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01L 23/29 - Encapsulation, e.g. encapsulating layers, coatings characterised by the material
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
An object is to provide an isolate of 4,4′-bis(1,1-bis(4-hydroxy-3-methylphenyl)ethyl)biphenyl in a form suitable for industrial production. As a solution, a crystal of 4,4′-bis(1,1-bis(4-hydroxy-3-methylphenyl)ethyl)biphenyl is provided.
C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
6.
METHOD FOR PRODUCING AROMATIC BIS(TRIMELLITIC ANHYDRIDE ESTER)
The present invention addresses the problem of providing a method for producing, in an industrially efficient manner, an aromatic bis(trimellitic anhydride ester) of exceptional purity and at exceptional yield. The present invention provides, as a solution, a method for producing an aromatic bis(trimellitic anhydride ester) as represented by general formula (4), the method comprising: an acylation reaction step in which an aromatic diol represented by general formula (1) and a carboxylic anhydride represented by general formula (2) are reacted to obtain a reaction mixture containing an aromatic diacyl represented by general formula (3); and a transesterification step in which the reaction mixture obtained in the acylation reaction step and trimellitic anhydride are mixed to react the aromatic diacyl represented by general formula (3) and trimellitic anhydride in the presence of a basic compound catalyst
The present invention addresses the problem of providing a method for producing an aromatic bis(trimellitic anhydride ester) suitable for industrial production, the method allowing the aromatic bis(trimellitic anhydride ester) to be acquired with excellent hue and purity. As a solution, provided is a method for producing an aromatic bis(trimellitic anhydride ester) represented by general formula (4), the method comprising an ester exchange reaction step for causing an aromatic diacyl represented by general formula (3) and a trimellitic anhydride to react within the range of 120-200°C in the presence of an amine catalyst.
11 each independently represent a C1-6 linear or C3-6 branched alkyl group, X represents a C5-20 cycloalkylidene group, n each independently represent 0 or an integer of 1-3, and m each independently represent an integer of 1-6.)
C07C 43/215 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring having unsaturation outside the six-membered aromatic rings
The present invention addresses the problem of providing an additive which reduces a melt viscosity without impairing the heat resistance of a heat-resistant resin represented by a super engineering plastic and having a high melt viscosity, and which does not generate a volatile component such as gas during molding and improves moldability. To solve the problem, provided is an aromatic ether nitrile composition which contains a dihydroxy compound represented by general formula (1) and satisfies formations (i) and (ii) in liquid chromatography (LC) analysis using, as a detector, ultraviolet rays having a wavelength of 280 nm. Formation (i): The area percentage of the dihydroxy compound represented by general formula (1) with respect to all the components detected by the LC analysis is in the range of 10-95%. Formation (ii): The sum of the area percentages of a compound represented by general formula (2), a dihalobenzonitrile compound represented by general formula (3), and a dihydroxy compound represented by general formula (4) with respect to all the components detected by the LC analysis is at most 5%.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
The present invention addresses the problem of providing a highly crystalline polyether nitrile with which a molded article having high heat resistance and high strength can be obtained with high productivity at a typical mold temperature during injection molding of 200°C or lower. As a solution, provided is a polyether nitrile using 4,4'- biphenol and 2,6-dihalobenzonitrile, having a weight average molecular weight (Mw) of 45,000 or more and a glass transition temperature (Tg) of 190°C or less.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
The present invention addresses the problem of providing an aromatic polyether nitrile resin composition in which the melt viscosity is high, the melt viscosity is reduced without impairing the thermal resistance of an aromatic polyether nitrile having a slow crystallization rate, the crystallization rate is improved, volatile components such as gases are not generated during molding, and moldability is improved. Provided as a solution is an aromatic polyether nitrile resin composition in which: the weight ratio of an aromatic ether nitrile composition (A) to an aromatic polyether nitrile (B) is in the range of (A)/(B) = 1/99 to 50/50; and the weight average molecular weight (Mw) in terms of polystyrene is at least 45,000 as measured by a gel permeation chromatography analysis. This aromatic ether nitrile composition contains the dihydroxy compound represented by general formula (1) and has a composition satisfying compositions (i) and (ii) in a liquid chromatography (LC) analysis in which ultraviolet rays having a wavelength of 280 nm serve as detectors. Composition (i): Relative to all components detected by the LC analysis, the area percentage of the dihydroxy compound represented by general formula (1) is in the range of 10% to 95%. Composition (ii): Relative to all components detected by the LC analysis, the total of the values of the area percentages of the compound represented by general formula (2), the dihalobenzonitrile compound represented by general formula (3), and the dihydroxy compound represented by general formula (4) is no more than 5%. This aromatic polyether nitrile has a weight average molecular weight (Mw) in terms of polystyrene of at least 50,000 as measured by a gel permeation chromatography analysis and has the repeating unit represented by general formula (5).
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
12.
METHOD FOR PRODUCING POLYETHER NITRILE MOLDING MATERIAL AND METHOD FOR PRODUCING POLYETHER NITRILE RESIN COMPOSITION MOLDING MATERIAL
An object is to provide a polyether nitrile molding material that exhibits high flowability during molding. As a solution, a method for producing a polyether nitrile molding material, the method including molding a polyether nitrile having a bulk density of 0.3 to 1.0 g/mL, is provided.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B29B 9/04 - Making granules by dividing preformed material in the form of plates or sheets
B29K 71/00 - Use of polyethers as moulding material
An object is to provide a polyether nitrile molding material that exhibits high flowability during melt molding. As a solution, provided is a polyether nitrile molding material obtained by molding a polyether nitrile that has a melt flow rate (MFR) of 1 g/10 min or more as measured at 390° C. under a load of 5000 g in accordance with ISO 1133 after being heated in air at 400° C. for 10 minutes.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The present invention addresses the problem of providing a polycarboxylic acid ester compound production method for producing a target polycarboxylic acid ester compound more rapidly and with further improved purity by reducing the content of a specific impurity. The above problem is solved by providing a method for producing a polycarboxylic acid ester compound (1) represented by general formula (1), wherein the method comprises an etherification reaction step for using a polyhydroxy aromatic compound (2) represented by general formula (2), a halocarboxylic acid ester compound (3) represented by general formula (3), and potassium carbonate to initiate an etherification reaction, and the specific surface area of the potassium carbonate is in the range of 0.1-2.0 m2/g.
C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
C07C 69/736 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
15.
METHOD FOR PRODUCING POLYCARBOXYLIC ACID ESTER COMPOUND
The present invention addresses the problem of providing a method for producing a polycarboxylic acid ester compound which has a reduced content of a specific impurity and has an improved purity. Provided is a method for producing a polycarboxylic acid ester compound (1) represented by general formula (1), the method comprising an etherification reaction step in which a polyhydroxy aromatic compound (2) represented by general formula (2), a halocarboxylic acid ester compound (3) represented by general formula (3), and potassium carbonate are used to conduct an etherification reaction, the potassium carbonate having a water content in the range of 0.01-1.5 wt%.
C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
C07C 69/736 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
16.
CRYSTALS OF 2,2-BIS-(4,4-BIS-(3,5-DIMETHYL-4-HYDROXYPHENYL)CYCLOHEXYL) PROPANE AND PRODUCTION METHOD FOR SAME
The present invention addresses the problem of providing an isolate of 2,2-bis-(4,4-bis-(3,5-dimethyl-4-hydroxyphenyl)cyclohexyl) propane in a form that is suited to industrial production. Provided are crystals of 2,2-bis-(4,4-bis-(3,5-dimethyl-4-hydroxyphenyl)cyclohexyl) propane.
C07C 39/17 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings containing other rings in addition to the six-membered aromatic rings
C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
17.
POLYETHER NITRILE MOLDING MATERIAL, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING POLYETHER NITRILE RESIN COMPOSITION MOLDING MATERIAL
An object is to provide a polyether nitrile molding material having high flowability during melt molding. As a solution, a polyether nitrile molding material having a melt flow rate (MFR) in the range of 2 to 50 g/10 min as measured at 390° C. under a load of 5000 g in accordance with ISO 1133 is provided.
B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
B29C 43/56 - Compression moulding under special conditions, e.g. vacuum
B29K 71/00 - Use of polyethers as moulding material
B29K 105/00 - Condition, form or state of moulded material
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The problem addressed is to provide a cured product containing polyphenylene ether having excellent dielectric characteristics. As a solution, provided is a cured product of a resin composition containing a component (A) and a component (B), in which the dielectric loss tangent measured at a frequency of 10 GHz is 0.0055 or less and the value of (relative dielectric constant)0.5×(dielectric loss tangent) calculated from the dielectric constant and dielectric loss tangent measured at a frequency of 10 GHz is 0.008 or less. (A): A polyphenylene ether resin (B): An allyl group-containing compound represented by general formula (1).
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F 283/08 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08K 3/013 - Fillers, pigments or reinforcing additives
C07D 265/14 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring
C08G 59/20 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the epoxy compounds used
1122 independently represents a methyl group, a trifluoromethyl group or a halogen atom, each n independently represents 1 or 2, and each m independently represents 0, 1, 2, or 3).
A novel benzoxazine compound is represented by general formula (1):
A novel benzoxazine compound is represented by general formula (1):
A novel benzoxazine compound is represented by general formula (1):
wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents an alkylene group having 1 to 6 carbon atoms, and X represents a cycloalkylidene group having 5 to 20 carbon atoms. The benzoxazine compound also constitutes a resin raw material composition, a curable resin composition, and a cured product thereof.
A curable resin composition contains 100 parts by weight of a component (A) and 5 to 2000 parts by weight of at least one of a component (B) and a component (C): (A) a benzoxazine compound having a thiol group; (B) a compound having a three- or four-membered ring cyclic ether group; (C) a compound having a reactive group including a carbon-carbon double bond or a carbon-carbon triple bond. The curable composition is intended to suppress an odorous volatile component (sulfur-containing volatile component) generated during the production of a cured product using the curable resin composition.
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
A polyimide has a repeating unit represented by general formula (1) and having a glass transition temperature (Tg) of 210° C. or higher:
A polyimide has a repeating unit represented by general formula (1) and having a glass transition temperature (Tg) of 210° C. or higher:
A polyimide has a repeating unit represented by general formula (1) and having a glass transition temperature (Tg) of 210° C. or higher:
wherein A represents a divalent group represented by general formula (5) or a divalent organic group including a cyclic aliphatic group having 4 to 30 carbon atoms:
A polyimide has a repeating unit represented by general formula (1) and having a glass transition temperature (Tg) of 210° C. or higher:
wherein A represents a divalent group represented by general formula (5) or a divalent organic group including a cyclic aliphatic group having 4 to 30 carbon atoms:
A polyimide has a repeating unit represented by general formula (1) and having a glass transition temperature (Tg) of 210° C. or higher:
wherein A represents a divalent group represented by general formula (5) or a divalent organic group including a cyclic aliphatic group having 4 to 30 carbon atoms:
wherein X represents a direct bond, an oxygen atom, a sulfur atom, a sulfonyl group (—SO2—), a carbonyl group (—CO—), an amide group (—NHCO—), an ester group (—OCO—), an alkylidene group having 1 to 15 carbon atoms, a fluorine-containing alkylidene group having 2 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, a phenylene group, or a fluorenylidene group, and each * represents a bonding position. The polyimide is intended to have high heat resistance, excellent optical properties, and dielectric properties while being made from a bio-derived resource.
An object is to provide a crystal of isosorbide-bis(trimellitate anhydride) having high purity and suitable as a resin raw material. As a solution, provided is a crystal of isosorbide-bis(trimellitate anhydride), particularly, a crystal of isosorbide-bis(trimellitate anhydride) having a melting endothermic peak in a specific range as obtained by differential scanning calorimetry or having a specific peak in a powder X-ray diffraction peak pattern obtained using Cu-Kα radiation.
A method for producing a polyether nitrile obtained by allowing an aromatic dihydroxy compound (I) and a dihalobenzonitrile compound (II) to undergo a polycondensation reaction in the presence of a basic compound (III) includes a first step of feeding a reaction raw material composed of the aromatic dihydroxy compound (I), the dihalobenzonitrile compound (II), and the basic compound (III) and a reaction solvent to a polycondensation reactor to perform a polycondensation reaction, a second step of taking out a polymer obtained by the polycondensation reaction from the polycondensation reactor, and a step (Step 3) of removing the polymer remaining in the polycondensation reactor and feeding the reaction solvent and the reaction raw material anew to the polycondensation reactor to perform a new polycondensation reaction. In the method, the melt flowability during molding is intended to be less likely to vary and decrease when the polyether nitrile is repeatedly produced.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
A method for producing a polyether nitrile includes allowing an aromatic dihydroxy compound composition (I) and a dihalobenzonitrile compound composition (II) to undergo a polycondensation reaction in the presence of a basic compound. In the method, the aromatic dihydroxy compound composition (I) includes an aromatic dihydroxy compound (I-a) and an aromatic monohydroxy compound (I-b), and contains (I-a) in an amount ranging from 99.0 to 99.995 mol % and (I-b) in an amount ranging from 1 to 0.005 mol % relative to a total amount of (I-a) and (I-b), and the dihalobenzonitrile compound composition (II) includes a dihalobenzonitrile compound (II-a) and a monohalobenzonitrile compound (II-b), and contains (II-a) in an amount ranging from 99.0 to 99.995 mol % and (II-b) in an amount ranging from 1 to 0.005 mol % relative to a total amount of (II-a) and (II-b).
An object is to provide a method for producing a polyether nitrile having high heat resistance and excellent in mechanical properties such that the polyether nitrile has a high molecular weight and high flowability. As a solution, provided is a method for producing a polyether nitrile, in which in producing a polyether nitrile by allowing an aromatic dihydroxy compound (I) and a dihalobenzonitrile compound (II) to undergo a polycondensation reaction, the reaction is continued to a region where a polymer reduced viscosity of a parachlorophenol solution at 40° C. decreases after exceeding 1 as the polycondensation proceeds and reaching a maximum.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
28.
CRYSTAL OF ISOMANNIDE-BIS(TRIMELLITATE ANHYDRIDE) AND METHOD FOR PRODUCING THE SAME
An object is to provide a crystal of isomannide-bis(trimellitate anhydride) having high purity and suitable as a resin raw material. As a solution, provided is a crystal of isomannide-bis(trimellitate anhydride), particularly, a crystal of isomannide-bis(trimellitate anhydride) having a melting endothermic peak in a specific range as obtained by differential scanning calorimetry or having a specific peak in a powder X-ray diffraction peak pattern obtained using Cu-Kα radiation.
A crystalline composition containing a benzoxazine compound represented by general formula (1) is provided:
A crystalline composition containing a benzoxazine compound represented by general formula (1) is provided:
A crystalline composition containing a benzoxazine compound represented by general formula (1) is provided:
wherein each R is independently a hydrogen atom or a methyl group.
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C07C 217/90 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. amino-diphenylethers
C07C 251/24 - Compounds containing nitrogen atoms doubly- bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to carbon atoms of six-membered aromatic rings
30.
BIS[1-METHYL-1-(4-HYDROXYALKOXY-3-ALKYLPHENYL) ETHYL ]BENZENE COMPOUND AND METHOD FOR PRODUCING SAME, AND CRYSTAL AND METHOD FOR PRODUCING SAME
A polyimide resin material for a colorless transparent processed product, contains a polyimide having a repeating unit represented by general formula (1) below,
A polyimide resin material for a colorless transparent processed product, contains a polyimide having a repeating unit represented by general formula (1) below,
A polyimide resin material for a colorless transparent processed product, contains a polyimide having a repeating unit represented by general formula (1) below,
wherein X represents a direct bond or a sulfonyl group (—SO2—), R1 and R2 each independently represent a linear or branched alkyl group having 1 to 6 carbon atoms, a linear or branched alkyl halide group having 1 to 6 carbon atoms, or a halogen atom, and m and n each independently represent 0, 1, or 2. The polyimide resin material can be featured by high colorless transparency and also high heat resistance.
The present invention addresses the problem of providing a method for producing a polycarboxylic acid ester compound having improved purity as a result of reducing the content of specific impurities. The problem is solved by providing a method for producing a polycarboxylic acid ester compound (1) represented by general formula (1), said method including a reaction step involving an aliphatic alcohol (4) in which at least one type of compound selected from the group consisting of a polycarboxylic acid ester compound (2) represented by general formula (2) and a polycarboxylic acid ester compound (3) represented by general formula (3) is reacted with an aliphatic alcohol (4) represented by general formula (4) to obtain a carboxylic acid ester compound (1) represented by general formula (1).
C07C 67/03 - Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
C07C 67/52 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
C07C 69/712 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
The present invention addresses the problem of providing a method for producing a polycarboxylic acid ester compound in which purity is improved by reducing the content of specific impurities. The above problem is solved by providing a method for producing a polycarboxylic acid ester compound (1) represented by general formula (1), said method including an etherification reaction step in which a polyhydroxy aromatic compound represented by general formula (2) and a halocarboxylic acid ester compound represented by general formula (3) are used to perform an etherification reaction in the presence of a ketone solvent. The content of a monovalent aliphatic alcohol in the ketone solvent is 0.04 mass% or less, and the content of water is 2 mass% or less.
C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
C07C 67/52 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
C07C 69/712 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
The present invention addresses the problem of providing a method for producing a polycarboxylic acid ester compound having improved purity as a result of reducing the content of impurities. As a means of solving the problem, a method for producing a polycarboxylic acid ester compound (1) represented by general formula (1) is provided, said method involving carrying out an etherification reaction using a polyhydroxy aromatic compound (2) represented by general formula (2) and a halocarboxylic acid ester compound composition (i.e., a composition in which the sum of component ratios of halocarboxylic acid ester compound (3), halocarboxylic acid ester compound (4), and other components, is 100 area% according to gas chromatography analysis), which is in the range of the component ratios below. [Component ratio according to gas chromatography analysis] Halocarboxylic acid ester compound (3) represented by general formula (3): 99.50-99.99 area%. (4) Halocarboxylic acid ester compound (4) represented by general formula (4): 0.01-0.09 area %.
C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
C07C 69/712 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
A curable resin composition for obtaining a cured product having improved heat resistance contains a component (A), which is a polyphenylene ether resin, in an amount of 100 parts by weight, and a component (B), which is a diallyl ether compound represented by general formula (1), in an amount of 0.1 to 4.9 parts by weight:
A curable resin composition for obtaining a cured product having improved heat resistance contains a component (A), which is a polyphenylene ether resin, in an amount of 100 parts by weight, and a component (B), which is a diallyl ether compound represented by general formula (1), in an amount of 0.1 to 4.9 parts by weight:
A curable resin composition for obtaining a cured product having improved heat resistance contains a component (A), which is a polyphenylene ether resin, in an amount of 100 parts by weight, and a component (B), which is a diallyl ether compound represented by general formula (1), in an amount of 0.1 to 4.9 parts by weight:
wherein R1 to R8 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms.
C08G 65/48 - Polymers modified by chemical after-treatment
C08G 65/44 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
36.
MATERIAL FOR MELT PROCESSING AND MELT-PROCESSED PRODUCT
A material for melt processing contains a polyimide having a repeating unit represented by general formula (1) below.
A material for melt processing contains a polyimide having a repeating unit represented by general formula (1) below.
A material for melt processing contains a polyimide having a repeating unit represented by general formula (1) below.
wherein each R1 independently represents a linear or branched alkyl group having 1 to 6 carbon atoms, a linear or branched alkyl halide group having 1 to 6 carbon atoms, or a halogen atom, each m independently represents 0, 1, or 2, and X represents a divalent chemical group represented by general formula (2) below,
A material for melt processing contains a polyimide having a repeating unit represented by general formula (1) below.
wherein each R1 independently represents a linear or branched alkyl group having 1 to 6 carbon atoms, a linear or branched alkyl halide group having 1 to 6 carbon atoms, or a halogen atom, each m independently represents 0, 1, or 2, and X represents a divalent chemical group represented by general formula (2) below,
A material for melt processing contains a polyimide having a repeating unit represented by general formula (1) below.
wherein each R1 independently represents a linear or branched alkyl group having 1 to 6 carbon atoms, a linear or branched alkyl halide group having 1 to 6 carbon atoms, or a halogen atom, each m independently represents 0, 1, or 2, and X represents a divalent chemical group represented by general formula (2) below,
wherein the polyimide is made to have high heat resistance and high melt flowability.
A method for producing a benzoxazine compound represented by general formula (3), includes performing a reaction of a bisphenol compound represented by general formula (1), a formaldehyde, and an amine compound represented by general formula (2) in a specific temperature range:
A method for producing a benzoxazine compound represented by general formula (3), includes performing a reaction of a bisphenol compound represented by general formula (1), a formaldehyde, and an amine compound represented by general formula (2) in a specific temperature range:
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
38.
CHAIN-LINKING AGENT, CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF, CHAIN LINKING METHOD, AND EPOXY RESIN
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
39.
ESTER COMPOUND, AND ESTER COMPOUND COMPOSITION FOR RESIN RAW MATERIAL
2311 independently indicates a C1-6 alkyl group or a C6-12 aryl group, and each * indicates a bond position. In general formula (3a), each m independently indicates an integer of 1-4. In general formula (3b), each n independently indicates 0 or an integer of 1-4, and Z indicates a C7-20 cycloalkylidene group.)
C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
40.
POLYARYL ETHER KETONE, POLYARYL ETHER KETONE RESIN COMPOSITION, MOLDED ARTICLE OF SAID POLYARYL ETHER KETONE OR POLYARYL ETHER KETONE RESIN COMPOSITION, AND ELECTRONIC INSTRUMENT/DEVICE USING SAID POLYARYL ETHER KETONE OR POLYARYL ETHER KETONE RESIN COMPOSITION
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
41.
POLYARYL ETHER KETONE RESIN COMPOSITION, MOLDED ARTICLE OF SAME AND METHOD FOR PRODUCING POLYARYL ETHER KETONE RESIN COMPOSITION
The present invention addresses the problem of providing a resin material for a polyaryl ether ketone that has improved load-carrying capacity at high temperatures without adding a strengthening agent or a filler to the resin material. The present invention provides, as a means for solving the problem, a polyaryl ether ketone resin composition that contains a first resin component and a second resin component. (First resin component) A polyaryl ether ketone which has a glass transition temperature of 200°C or more and a weight average molecular weight within the range of 2,000 to 1,000,000 (inclusive). (Second resin component) A polyaryl ether ketone which has a glass transition temperature of 100°C or more but less than 220°C and a weight average molecular weight within the range of 2,000 to 1,000,000 (inclusive).
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08J 3/20 - Compounding polymers with additives, e.g. colouring
42.
POLYARYL ETHER KETONE RESIN MATERIAL FOR ELECTRONIC EQUIPMENT/DEVICES AND ELECTRONIC EQUIPMENT/DEVICES USING SAME
122 each independently represent a C1-4 alkyl group, a represents 1 or 2, b each independently represents 0, 1, or 2, and c represents 0 or an integer of 1-4.)
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The present invention addresses the problem of providing a method for producing binaphthyl carboxylic acid which is suitable as a resin raw material having excellent optical properties and which has good hue. Provided as a solution is a method for producing 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl represented by formula (2), said method being characterized in that 1,1'-binaphthyl-2,2'-diol represented by formula (1) is used as a starting material, and steps (i)-(iii) are performed in order. In step (i), 1,1'-binaphthyl-2,2'-diol represented by formula (1) and a haloacetic acid ester represented by formula (3) are subjected to an etherification reaction in an atmosphere or under an airflow in which oxygen concentration is not more than 6% by volume, so as to produce 2,2'-bis(alkoxycarbonylmethoxy)-1,1'-binaphthyl represented by formula (4). In step (ii), the 2,2'-bis(alkoxycarbonylmethoxy)-1,1'-binaphthyl represented by formula (4) is hydrolyzed and subsequently subjected to an acid treatment. In step (iii), crystallization is performed to obtain 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl represented by formula (2).
C07C 51/09 - Preparation of carboxylic acids or their salts, halides, or anhydrides from carboxylic acid esters or lactones
C07C 59/66 - Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings
The present invention addresses the problem of providing a method for producing a high-purity benzoxazine compound by suppressing a decrease in the purity due to molecular weight increase during the production of an allyl group-containing benzoxazine compound. As a means for solving the problem, the present invention provides a method for producing a benzoxazine compound represented by general formula (1), the method comprising a step for solvent removal by distillation, in which a benzoxazine solution that contains a benzoxazine compound represented by general formula (1) and an ester-based solvent having a boiling point at 1 atmosphere within the range of 30°C to 90°C is subjected to removal of the solvent by distillation within the range of 20°C to 85°C.
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
45.
BENZOXAZINE COMPOUND, RESIN MATERIAL COMPOSITION CONTAINING SAME, CURABLE RESIN COMPOSITION, AND CURED PRODUCT OF SAME
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
11 each independently represent a C1-6 linear or branched alkyl group, a C1-6 linear or branched halogenated alkyl group, or a halogen atom, and n represents 1 or 2.)
122 each independently represent a methyl group or a trifluoromethyl group; Ar represents a divalent aromatic hydrocarbon group having 6 to 12 carbon atoms; m represents an integer of 1 to 6 or 0; and n each independently represents 0, 1, or 2.)
The present invention addresses the problem of providing: a curable composition which can be cured under low temperature conditions and a cured product of which has improved heat resistance; a cured product obtained by curing same; a curing agent for resole-type phenolic resin; and a curable composition-containing adhesive. To solve the problem, provided is a curable composition containing the following component (A) and the following component (B). Component (A) is a resole-type phenolic resin. Component (B) is a composition comprising a component (B1) composed of compound (1), compound (2), and compound (3), wherein the total amount of component (B1) falls within the range of 40 area% to 70 area% of the total amount of all components detected by gel permeation chromatography using a differential refractometer.
The present invention addresses the problem of providing a siloxane resin that has improved mechanical strength. As a solution, the present invention provides a siloxane resin obtained by polymerizing component (A), component (B), and component (C). Component (A): a silane compound represented by general formula (1). Component (B): a silane compound represented by general formula (2). Component (C): silica. (1): R133 (in which R1is a C1–4 alkyl group or a C6–8 aryl group, and X is a halogen atom, a C1–4 alkoxy group, or a C6–8 aryloxy group). (2): R1222 (in which R1 and X are the same as defined for general formula (1).
An object is to provide a compound that can be a novel curing agent. The compound suppresses volatilization of the curing agent that can lead to a decrease in function of a prepreg, contamination of equipment for producing the prepreg, and in addition a decrease in production yield of the prepreg, and further contributes to improving dielectric properties. As a solution, a tris(allyl ether) compound represented by general formula (1) below is provided.
An object is to provide a compound that can be a novel curing agent. The compound suppresses volatilization of the curing agent that can lead to a decrease in function of a prepreg, contamination of equipment for producing the prepreg, and in addition a decrease in production yield of the prepreg, and further contributes to improving dielectric properties. As a solution, a tris(allyl ether) compound represented by general formula (1) below is provided.
C07C 43/215 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring having unsaturation outside the six-membered aromatic rings
A method for producing a benzoxazine compound represented by general formula (3), includes performing a reaction by mixing a mixture containing a bisphenol compound represented by general formula (1) and a formaldehyde with an amine compound represented by general formula (2):
A method for producing a benzoxazine compound represented by general formula (3), includes performing a reaction by mixing a mixture containing a bisphenol compound represented by general formula (1) and a formaldehyde with an amine compound represented by general formula (2):
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
52.
NOVEL BENZOXAZINE COMPOUND, RESIN RAW MATERIAL COMPOSITION CONTAINING THE SAME, CURABLE RESIN COMPOSITION, AND CURED PRODUCT THEREOF
A benzoxazine compound is represented by general formula (1):
A benzoxazine compound is represented by general formula (1):
A benzoxazine compound is represented by general formula (1):
wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents a divalent group having 1 to 10 carbon atoms, and X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a) or general formula (1b), and
A benzoxazine compound is represented by general formula (1):
wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents a divalent group having 1 to 10 carbon atoms, and X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a) or general formula (1b), and
A benzoxazine compound is represented by general formula (1):
wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents a divalent group having 1 to 10 carbon atoms, and X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a) or general formula (1b), and
wherein R3 and R4 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R3 and R4 are optionally bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, An and Are each independently represent an aryl group having 6 to 12 carbon atoms, and * represents a bonding position.
C07D 413/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
An object is to provide a novel benzoxazine compound that has high heat resistance and can cure under low temperature conditions, a resin raw material composition containing the benzoxazine compound, a curable resin composition, and a cured product thereof. As a solution, a benzoxazine compound represented by general formula (1) is provided:
An object is to provide a novel benzoxazine compound that has high heat resistance and can cure under low temperature conditions, a resin raw material composition containing the benzoxazine compound, a curable resin composition, and a cured product thereof. As a solution, a benzoxazine compound represented by general formula (1) is provided:
An object is to provide a novel benzoxazine compound that has high heat resistance and can cure under low temperature conditions, a resin raw material composition containing the benzoxazine compound, a curable resin composition, and a cured product thereof. As a solution, a benzoxazine compound represented by general formula (1) is provided:
wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and R2 represents an alkylene group having 1 to 6 carbon atoms.
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C07D 413/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
The present invention addresses the problem of providing a means for solving problems concerning conventionally known solids of the trisphenol compound represented by chemical formula (A) and crystallization methods for the compound. Provided are a crystal of the trisphenol compound represented by chemical formula (A) and a method for producing the crystal.
C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
C07C 37/74 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
55.
Method for producing liquid-crystal polyester processed product
A method for producing a liquid-crystal polyester processed product having improved adhesion, includes a preliminary step of providing a formed body of a liquid-crystal polyester resin including a repeating unit represented by general formula (1); a step (I) of performing an oxidation treatment on a surface of the liquid-crystal polyester resin formed body; and a step (II) of stacking a resin layer on the surface on which the oxidation treatment has been performed to produce a laminate.
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
D01D 5/42 - Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films
D06M 10/02 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements ultrasonic or sonicCorona discharge
The fact that pure polyether nitrile exhibiting a half-crystallization time of less than 120 seconds (i.e., the time considered to be a practical molding cycle) has not previously been reported represents a problem. The present invention attempts to solve this problem and addresses the problem of providing a polyether nitrile that makes it possible to improve the productivity of a molded product. As a solution, the present invention provides polyether nitrile having a half-crystallization time of 100 seconds or less at 275ºC as measured by input compensation-type differential scanning calorimetry when the temperature is lowered from a molten state at 370ºC to 275ºC at a cooling rate of 500ºC per minute.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
57.
BENZOXAZINE COMPOUND-CONTAINING COMPOSITION, CURABLE RESIN COMPOSITION, AND CURED PRODUCT THEREOF
A benzoxazine compound-containing composition with a low melt viscosity, a curable resin composition, and a cured product thereof are provided. The benzoxazine compound-containing composition contains a benzoxazine compound represented by general formula (1)
A benzoxazine compound-containing composition with a low melt viscosity, a curable resin composition, and a cured product thereof are provided. The benzoxazine compound-containing composition contains a benzoxazine compound represented by general formula (1)
A benzoxazine compound-containing composition with a low melt viscosity, a curable resin composition, and a cured product thereof are provided. The benzoxazine compound-containing composition contains a benzoxazine compound represented by general formula (1)
and a compound group (A) having a molecular weight in the range of 1,000 to 10,000. In a gel permeation chromatography measurement using a differential refractometer as a detector, a peak area of the compound group (A) is in the range of 0.1 area % to 15 area % relative to a peak area of all components detected, and the benzoxazine compound-containing composition has a melt viscosity at 100° C. in the range of 0.1 Pa·S to 4.5 Pa·S.
C08G 59/06 - Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
58.
CRYSTAL OF 4,4'-BIS(1,1-BIS(4-HYDROXY-3-METHYLPHENYL)ETHYL)BIPHENYL AND METHOD FOR PRODUCING SAME
The present invention addresses the problem of providing an isolate of 4,4'-bis(1,1-bis(4-hydroxy-3-methylphenyl)ethyl)biphenyl in a form suitable for industrial production. The solution is to provide a crystal of 4,4'-bis(1,1-bis(4-hydroxy-3-methylphenyl)ethyl)biphenyl.
C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
59.
POLYETHER NITRILE MOLDING MATERIAL, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING POLYETHER NITRILE RESIN COMPOSITION MOLDING MATERIAL
The present invention addresses the problem of providing a polyether nitrile molding material which exhibits excellent fluidity during melt molding. The present invention provides, as a means for solving the problem, a polyether nitrile molding material which is obtained by molding a polyether nitrile that has a melt flow rate (MFR) of 1 g/10 minutes or more as measured at 390°C under a load of 5,000 g in accordance with ISO 1133 after being heated at 400°C for 10 minutes in the air.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08K 3/013 - Fillers, pigments or reinforcing additives
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
C08L 101/00 - Compositions of unspecified macromolecular compounds
60.
METHOD FOR MANUFACTURING POLYETHER NITRILE MOLDING MATERIAL AND METHOD FOR MANUFACTURING POLYETHER NITRILE RESIN COMPOSITION MOLDING MATERIAL
The present invention addresses the problem of providing a polyether nitrile molding material that has excellent fluidity when molding. As a solution, provided is a method for manufacturing a polyether nitrile molding material wherein polyether nitrile having a bulk density of 0.3-1.0 g/mL is molded.
B29B 9/08 - Making granules by agglomerating smaller particles
B29B 9/10 - Making granules by moulding the material, i.e. treating it in the molten state
B29B 9/12 - Making granules characterised by structure or composition
B30B 11/00 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The present invention addresses the problem of providing a composition for a resin starting material, in order to obtain a cured product that exhibits excellent dielectric characteristics and also a satisfactory mechanical strength and an excellent heat resistance. Provided, as a solution to the problem, is a composition for a resin starting material, comprising 2,2-bis(4-acetoxy-3-allylphenyl)propane (compound (1)) and having a solvent content of not more than 5 weight% and a refractive index at 25°C in the range from 1.546 to 1.551.
C08F 12/34 - Monomers containing two or more unsaturated aliphatic radicals
C07C 69/157 - Acetic acid esters of monohydroxylic compounds of unsaturated alcohols containing six-membered aromatic rings
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F 283/08 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08K 5/107 - EstersEther-esters of monocarboxylic acids with phenols with polyphenols
The present invention addresses the problem of providing a novel dicarboxylic acid compound that has a further improved refractive index. The solution is to provide a biphenanthrene compound, represented by general formula (1), or an alkali metal salt thereof.
C07C 59/66 - Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings
C07C 67/30 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
C07C 69/712 - Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
63.
ALLYL ETHER COMPOUND AND METHOD FOR PRODUCING SAME, CURABLE RESIN COMPOSITION, VARNISH, PREPREG, CURED PRODUCT, POLYPHENYLENE ETHER RESIN CURING AGENT, AND CRYSTALS AND METHOD FOR PRODUCING SAME
11 each independently represent a C1-6 linear or branched alkyl group, a C5 or C6 cyclic alkyl group, a C1-6 linear or branched alkoxy group, a C5 or C6 cyclic alkoxy group, or a halogen atom, and n each independently represent 1, 2, or 3.)
C07D 251/24 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
The present invention addresses the problem of providing a novel bisphenol compound that has a further improved refractive index. Provided is a 1,3-bis(1-methyl-1-phenylethyl)benzene compound represented by general formula (1).
C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
C07C 41/30 - Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
C07C 43/20 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
C07C 37/11 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
The present invention addresses the problem of providing a (meth)acrylate-terminated polyphenylene ether oligomer capable of providing a cured product having excellent heat resistance. To solve the problem, provided is a (meth)acrylate-terminated polyphenylene ether oligomer characterized by being represented by general formula (1) and/or general formula (2) and having a weight average molecular weight (Mw) of 700-30,000.
C08G 65/38 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
In order to provide a novel compound that has good solvent solubility, has high storage stability (dissolution stability) during refrigerated or frozen storage, and can be used as a crosslinking agent, a substituted trisphenol compound represented by formula (2) below is provided:
In order to provide a novel compound that has good solvent solubility, has high storage stability (dissolution stability) during refrigerated or frozen storage, and can be used as a crosslinking agent, a substituted trisphenol compound represented by formula (2) below is provided:
C07C 43/178 - Unsaturated ethers containing hydroxy or O-metal groups
C07C 69/21 - Acetic acid esters of hydroxy compounds with more than three hydroxy groups
C07C 215/56 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton with amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains further substituted by hydroxy groups
67.
ISOSORBIDE-BIS(TRIMELLITATE ANHYDRIDE) CRYSTAL AND METHOD FOR PRODUCING SAME
The present invention addresses the problem of providing a highly pure isosorbide-bis(trimellitate anhydride) crystal that is suitable as a resin starting material. As a solution to this problem, the present invention provides an isosorbide-bis(trimellitate anhydride) crystal, specifically, an isosorbide-bis(trimellitate anhydride) crystal that has an endothermic peak in a specific range in differential scanning calorimetry, or a specific peak in a powder X-ray diffraction peak pattern by Cu-Kα rays.
The present invention addresses the problem of providing a crystal of isomannide-bis(trimellitate anhydride) which has high purity and is suitable as a resin raw material. As a solution, a crystal of isomannide-bis(trimellitate anhydride), particularly a crystal of isomannide-bis(trimellitate anhydride) which has a melting endothermic peak in a specific range by differential scanning calorimetry and also has a specific peak in a powder X-ray diffraction peak pattern by Cu-Kα line, is provided.
The present invention addresses the problem of overcoming issues caused by volatilization of a curing agent during heat curing and issues regarding deterioration in performance of a cured product associated with reduction in the usage amount of a curing agent; and providing a curable resin composition and a prepreg for obtaining a cured product having a significantly improved heat resistance. As a solution to the problem, provided is a curable resin composition containing: a component (A) in an amount of 100 parts by weight; and a component (B) in a range of 1.5-6.0 parts by weight. (A): A polyphenylene ether resin (B): An allyl group-containing compound represented by general formula (1).
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F 12/34 - Monomers containing two or more unsaturated aliphatic radicals
C08F 283/08 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
The present invention addresses the problem of providing a polyether nitrile molding material having excellent fluidity when melt molding. Provided, as the solution, is a polyether nitrile molding material having a melt flow rate (MFR) in a range of 2-50 g/10 minutes as measured at 390ºC with a load of 5000 g according to ISO 1133 standards.
C08L 71/10 - Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08K 3/013 - Fillers, pigments or reinforcing additives
The present invention addresses the problem of providing a method for producing polyethernitrile that exhibits a stable melt fluidity, wherein, when polyethernitrile is repetitively produced, fluctuations and reductions in the melt fluidity during molding are suppressed. Provided as a solution is a method for producing polyethernitrile in which polyethernitrile is obtained by a polycondensation reaction between an aromatic dihydroxy compound (I) and a dihalobenzonitrile compound (II) in the presence of a basic compound (III), the method for producing polyethernitrile characteristically comprising: a step (step 1) for feeding a reaction solvent and reaction starting materials comprising the aromatic dihydroxy compound (I), dihalobenzonitrile compound (II), and basic compound (III) into a polycondensation reaction device and carrying out a polycondensation reaction; a step (step 2) for removing the polymer yielded by the polycondensation reaction from the polycondensation reaction device; and a step (step 3) for removing polymer that remains in the polycondensation reaction device, feeding fresh reaction solvent and reaction starting materials into the polycondensation reaction device, and carrying out a new polycondensation reaction.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
Provided is a method for producing polyether nitrile of a high molecular weight at a practical polymerization rate. A method for producing polyether nitrile that polycondenses an aromatic dihydroxy compound composition (I) and a dihalobenzonitrile compound composition (II) in the presence of a basic compound is characterized in that the aromatic dihydroxy compound composition (I) includes an aromatic dihydroxy compound (I-a) and an aromatic monohydroxy compound (I-b) and contains (I-a) within the range of 99.0-99.995 mol% and (I-b) within the range of 1-0.005 mol% relative to the total of (I-a) and (I-b), and the dihalobenzonitrile compound composition (II) includes a dihalobenzonitrile compound (II-a) and a monohalobenzonitrile compound (II-b) and contains (II-a) within the range of 99.0-99.995 mol% and (II-b) within the range of 1-0.005 mol% relative to the total of (II-a) and (II-b).
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The present invention addresses the problem of providing a method for producing a polyether nitrile that has high heat resistance and excellent mechanical properties and also has a high molecular weight and high flowability. As a means for solving the problem, provided is a method for producing a polyether nitrile, wherein, in producing the polyether nitrile by a polycondensation reaction of an aromatic dihydroxy compound (I) with a dihalobenzonitrile compound (II), the reaction is continued until the region where the polymer reduced viscosity of the para-chlorophenol solution at 40°C decreases, after the polycondensation proceeds and the polymer reduced viscosity is maximized and exceeds 1.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
74.
CRYSTALLINE COMPOSITION, CRYSTAL OF BENZOXAZINE COMPOUND, METHOD FOR PRODUCING BENZOXAZINE COMPOUND, AND NOVEL COMPOUND
The present invention addresses the problem of providing: a crystalline composition comprising a benzoxazine compound represented by general formula (1); and a method for producing same. As a solution, provided is a crystalline composition comprising a benzoxazine compound represented by general formula (1). (In the formula, each R is independently a hydrogen atom or a methyl group.)
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C07C 217/90 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. amino-diphenylethers
C07C 251/24 - Compounds containing nitrogen atoms doubly- bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to carbon atoms of six-membered aromatic rings
75.
CURABLE RESIN COMPOSITION, VARNISH, CURED PRODUCT, AND PRODUCTION METHOD FOR CURED PRODUCT
The present invention addresses the problem of providing a means with which it is possible to inhibit a volatile component (sulfur-containing volatile component) which has an odor generated during production of a cured product by means of a curable resin composition containing a benzoxazine compound having a thiol group. The problem is solved by providing a curable resin composition containing 100 parts by weight of a component (A) and a range of 5-2,000 parts by weight of at least one component among a component (B) and a component (C). (A): A benzoxazine compound represented by general formula (1). (B): A compound having a cyclic ether group that has a three- or four-membered ring. (C): A compound having a reactive group that includes a carbon-carbon double bond or a carbon-carbon triple bond.
C08L 61/20 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
76.
POLYIMIDE, POLYIMIDE VARNISH, AND POLYIMIDE THIN FILM
1222–), a carbonyl group (–CO–), an amido group (–NHCO–), an ester group (–OCO–), a C1-15 alkylidene group, a C2-15 fluorine-including alkylidene group, a C5-15 cycloalkylidene group, a phenylene group, or a fluorenylidene group; and each * represents a bond location.)
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F 283/08 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
NOVEL BENZOXAZINE COMPOUND, RESIN STARTING MATERIAL COMPOSITION CONTAINING SAME, CURABLE RESIN COMPOSITION, AND CURED PRODUCT OF SAID CURABLE RESIN COMPOSITION
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
A method for producing 2,2′-bis(carboxymethoxy)-1,1′-binaphthyl includes performing steps (i) to (iv) below in sequence using a 2,2′-bis(alkoxycarbonylmethoxy)-1,1′-binaphthyl as a starting material:
(i) a hydrolysis reaction step,
(ii) a step of distilling off a resulting alcohol represented by formula (3) above from a reaction system,
(iii) a step of acidifying a reaction solution, and
(iv) a step of precipitating 2,2′-bis(carboxymethoxy)-1,1′-binaphthyl in the presence of an organic solvent.
In order to improve resin physical properties such as heat resistance (glass transition temperature) of a resin such as polyester obtained from 2,2′-bis(carboxymethoxy)-1,1′-binaphthyl, provided is a composition for a resin raw material containing a compound represented by formula (1) as a component A and a compound represented by formula (2) as a component B, wherein their composition ratios are in ranges wherein the component A is present in an amount of 98.0 area % or more and 99.99 area % or less, and the component B is present in an amount of 1.50 area % or less, relative to the total amount of all components detected at a wavelength of 280 nm by high-performance liquid chromatography analysis using a UV detector.
A method for producing 2,2′-bis(carboxymethoxy)-1,1′-binaphthyl includes a separation step of separating a metal salt of 2,2′-bis(carboxymethoxy)-1,1′-binaphthyl from a reaction mixture by solid-liquid separation. In the method, a 2,2′-bis(alkoxycarbonylmethoxy)-1,1′-binaphthyl is used as a starting material.
C07C 51/02 - Preparation of carboxylic acids or their salts, halides, or anhydrides from salts of carboxylic acids
C07C 51/47 - SeparationPurificationStabilisationUse of additives by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by chemisorption
82.
MELT-PROCESSING MATERIAL AND MELT-PROCESSED ARTICLE
11 each independently represent a C1-6 straight-chain or branched-chain alkyl group, a C1-6 straight-chain or branched-chain halogenated alkyl group, or a halogen atom, m each independently represent 0, 1 or 2, and X represents a divalent chemical group which is represented by general formula (2).)
2122 each independently represent a linear-chain or branched-chain alkyl group having 1-6 carbon atoms, a linear-chain or branched-chain halogenated alkyl group having 1-6 carbon atoms, or a halogen atom, and m and n each independently represent 0, 1, or 2).
An object is to provide a new method for producing an aromatic bis ether compound in an industrially stable manner and in high yield. As a solution, a method for producing an aromatic bis ether compound represented by formula (3), in which in a reaction between an aromatic dihydroxy compound (1) represented by formula (1) above and a halide (2) represented by formula (2) above, the amount of water in a reaction solution is 0.01 wt % or more and 1.5 wt % or less relative to the amount of the aromatic dihydroxy compound (1) in the reaction solution, is provided.
C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
85.
NOVEL TRIS(ALLYL ETHER) COMPOUND HAVING TRIPHENYLALKANE FRAMEWORK
The present invention addresses the problem of providing a compound capable of being used as a novel curing agent which is prevented from volatilization that may cause the deterioration in the function of a prepreg, the contamination of a production facility for the prepreg, and the decrease in yield of the production of the prepreg and which contributes to the improvement of dielectric properties. As a solution for the problem, a tris(allyl ether) compound represented by general formula (1) is provided.
C07C 43/215 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring having unsaturation outside the six-membered aromatic rings
86.
POWDER OF 2,2',3,3',5,5'-HEXAMETHYLBIPHENYL-4,4'-DIOL BIS(TRIMELLITATE ANHYDRIDE)
The present invention addresses the problem of providing a powder of 2,2',3,3',5,5'-hexamethylbiphenyl-4,4'-diol bis(trimellitate anhydride) having satisfactory handleability and a method for producing the powder. The powder of 2,2',3,3',5,5'-hexamethylbiphenyl-4,4'-diol bis(trimellitate anhydride) has an average particle diameter of 10-40 μm.
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C08L 101/00 - Compositions of unspecified macromolecular compounds
89.
NOVEL BENZOXAZINE COMPOUND, RESIN RAW MATERIAL COMPOSITION CONTAINING SAME, CURABLE RESIN COMPOSITION, AND CURED PRODUCT OF SAID CURABLE RESIN COMPOSITION
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
An object is to provide a method for producing a liquid-crystal polyester processed product, the method improving the adhesion of a liquid-crystal polyester resin, which is a poorly adhesive resin. As a solution, a method for producing a liquid-crystal polyester processed product, including a step (I) of performing an oxidation treatment on a surface of a liquid-crystal polyester resin formed body including a repeating unit represented by general formula (1), is provided.
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
D01D 5/42 - Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films
D06M 10/02 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements ultrasonic or sonicCorona discharge
The present invention addresses the problem of providing a crystal of 1,1,1-tris(4-hydroxy-3,5-dimethylphenyl)ethane which has satisfactory handleability and a method for producing the crystal. The crystal of 1,1,1-tris(4-hydroxy-3,5-dimethylphenyl)ethane, in analysis by differential scanning calorimetry, has a maximum-endotherm temperature in the range of 195-225°C.
The present invention addresses the problem of providing a benzoxazine compound-containing composition having a low melt viscosity, a curable resin composition, and a cured product thereof. As a solution, provided is a benzoxazine compound-containing composition characterized by containing a benzoxazine compound represented by general formula (1) and a compound group (A) having a molecular weight in the range of 1,000-10,000, the peak area of the compound group (A) in gel permeation chromatography measurement using a differential refractometer as a detector being in the range of 0.1-15 area% relative to the peak area of all components detected, and the melt viscosity at 100°C being in the range of 0.1-4.5 Pa∙S.
An object is to provide a novel production method for 4-hydroxy-2-methylbenzoic acid that is suitable for industrial use. As a solution, a production method for 4-hydroxy-2-methylbenzoic acid that includes performing a step (I) of reacting a compound represented by general formula (1) with carbon dioxide to obtain a compound represented by general formula (2), and then a step (II) of dealkylating the compound represented by general formula (2), is provided.
C07C 51/15 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
95.
METHOD OF PRODUCING TETRAKISPHENOL COMPOUND HAVING BIPHENYL SKELETON
The present invention addresses the problem of providing a novel production method that has a high reaction selectivity for a tetrakisphenol compound in a reaction between a phenol and a 4,4'-diacylbiphenyl. As a means for solving this problem, the present invention provides a method of producing a tetrakisphenol compound represented by formula (3), said method being characterized by comprising reacting a phenol represented by formula (1) with a 4,4'-diacylbiphenyl represented by formula (2) in the presence of a specific alkanesulfonic acid.
C07C 39/15 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings
C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
The present invention addresses the problem of providing a novel compound which has satisfactory solubility in solvents, has high storage stability (solution stability) during refrigeration or freeze storage, and is usable as a crosslinking agent. Provided, as a solution, is a substituted trisphenol compound represented by formula (2).
C07C 43/178 - Unsaturated ethers containing hydroxy or O-metal groups
C07C 215/56 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton with amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains further substituted by hydroxy groups
C07C 69/21 - Acetic acid esters of hydroxy compounds with more than three hydroxy groups
An object of the present invention is to provide a novel compound that provides a curing agent that is less likely to volatilize during curing reaction and is excellent in various properties such as heat resistance. As a solution, an aromatic tetracarboxylic acid compound represented by formula (I) below is provided.
(In the formula, each R independently represents an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and each n independently represents 0 or an integer of 1 to 4.)
The present invention addresses the problem of providing a novel compound which readily dissolves in liquid epoxy resins and which can be a hardener for epoxy resins to give cured objects excellent in terms of heat resistance and chemical resistance. Provided as a means for solving the problem is a polyacyloxymethyl-4,4′-acyloxybiphenyl compound represented by formula (1).
The present invention addresses the problem of providing a preparation method with which highly pure 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl can be obtained with good production efficiency. As a solution, the present invention provides a preparation method for 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl represented by formula (3), said preparation method characterized by comprising a separation step in which a 2,2'-bis(alkoxycarbonylmethoxy)-1,1'-binaphthyl represented by formula (1) is used as a starting material to perform solid-liquid separation of a metal salt of a 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl represented by formula (2) from a reaction mixture.
C07C 51/02 - Preparation of carboxylic acids or their salts, halides, or anhydrides from salts of carboxylic acids
C07C 59/68 - Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings the oxygen atom of the ether group being bound to a non-condensed six-membered aromatic ring
The present invention addresses the problem of providing a production method by which high purity 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl can be obtained. A solution to this problem is a method for producing 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl represented by formula (2), the method being characterized by using a 2,2'-bis(alkoxycarbonylmethoxy)-1,1'-binaphthyl compound represented by formula (1) as a starting material and carrying out steps (i) to (iv) in the stated order. (i) A hydrolysis step; (ii) a step for distilling off a generated alcohol represented by formula (3) from the reaction system; (iii) a step for rendering the reaction liquid acidic; and (iv) a step for precipitating 2,2'-bis(carboxymethoxy)-1,1'-binaphthyl in the presence of an organic solvent.
C07C 51/43 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation
C07C 59/68 - Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings the oxygen atom of the ether group being bound to a non-condensed six-membered aromatic ring
patents
