It was found that a compound represented by formula (1) can be produced via a production method in which a boron-containing polycyclic aromatic compound represented by general formula (2) and hydrogen peroxide are reacted in the presence of a base. (In the formula, each of R1ato R1dindependently represents a 1-8C alkyl group which may have a substituent, a 3-8C cycloalkyl group which may have a substituent, a phenyl group, or a 7-15C aralkyl group which may have a substituent. Additionally, R1aand R1bmay be integrated forming a ring, and R1cand R1d may be integrated forming a ring.)
C07C 39/12 - 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
C07C 37/01 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
A polyester obtained by reacting the following components (A)-(C). (A) A dicarboxylic acid represented by general formula (1) or an acid anhydride thereof. (B) A polyalkylene glycol having a number average molecular weight of at least 180 and having an optionally branched C1-8 alkylene group. (C) An alcohol represented by general formula (2).
A polyester obtained by reacting the following components (A)-(C). (A) A dicarboxylic acid represented by general formula (1) or an acid anhydride thereof. (B) A trialkylene glycol having an optionally branched C1-8 alkylene group. (C) An alcohol represented by general formula (2).
Provided is a method for producing a compound represented by formula (1), the method comprising a step for crystallizing the compound represented by formula (1) from a crystallization solution, wherein the crystallization solution contains the compound represented by formula (1), at least one compound selected from the group consisting of an aliphatic hydrocarbon having 5-10 carbon atoms and an aromatic hydrocarbon having 6-9 carbon atoms in an amount of 0.5-7 parts by weight per part by weight of the compound represented by formula (1), and a compound represented by formula (2) in a content of 0.3-6% relative to the compound represented by formula (1).
C07C 67/52 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
C07C 69/753 - Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring of polycyclic acids
5.
CRYSTAL OF DIESTER COMPOUND HAVING BINAPHTHYL SKELETON AND PRODUCTION METHOD THEREOF
Provided are a crystal of a compound represented by formula (1) and a production method thereof. The crystal satisfies at least one of the following conditions: the maximum melting endothermic temperature determined by differential scanning calorimetry is 177-181°C; and the powder X-ray diffraction pattern using a Cu-Kα ray shows peaks at diffraction angles 2θ of 7.6±0.2°, 8.7±0.2°, 18.0±0.2°, 19.2±0.2°, 19.7±0.2° and 21.9±0.2°.
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
B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
C07C 67/52 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
National University Corporation Tokai National Higher Education and Research System (Japan)
TAOKA CHEMICAL CO., LTD. (Japan)
Inventor
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Nakatsuji, Hidefumi
Ueno, Ryoma
Ishida, Shunsuke
Okuda, Sachie
Abstract
A graphene nanoribbon represented by formula (1):
A graphene nanoribbon represented by formula (1):
wherein R1 represents a linear alkyl group having 1 to 12 carbon atoms, R3 and R4 are both hydrogen atoms, or R3 and R4 taken together form a group represented by —SiR2aR2b—, wherein R2a and R2b are the same or different, and each represents a hydrogen atom, an optionally branched alkyl group having 1 to 4 carbon atoms, or a phenyl group, and n represents an integer of 1 or more, is a novel GNR obtained by a simpler and industrially advantageous method for GNRs.
The present invention addresses the problem of providing a 2-cyanoacrylate adhesive composition that has improved moist heat resistance and includes alkoxyalkyl 2-cyanoacrylate as a main component. By using an adhesive composition comprising a compound, which includes a plurality of specific acid anhydride groups, at a specific ratio with respect to alkoxyalkyl 2-cyanoacrylate, it is possible to provide an adhesive compound that has improved moist heat resistance and includes alkoxyalkyl 2-cyanoacrylate as a main component, thereby solving the abovementioned problem.
The present invention provides a diamine represented by formula (1); a method for producing the same; and a polyamic acid and polyimide produced from this diamine.
C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions
C07C 205/57 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
C07C 227/04 - Formation of amino groups in compounds containing carboxyl groups
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
9.
METHOD FOR PRODUCING NAPHTHYLSILOLE, NAPHTHYLSILOLE CONTAINING HETEROCYCLIC GROUP, AND GRAPHENE NANORIBBON CONTAINING HETEROCYCLIC GROUP
National University Corporation Tokai National Higher Education and Research System (Japan)
Taoka Chemical Co., Ltd. (Japan)
Inventor
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Murakami, Kazuo
Nakatsuji, Hidefumi
Ishida, Shunsuke
Abstract
Provided is a method that allows for a safer production of a naphthylsilole for use as a starting material for GNR, which involves reacting a compound of formula (1):
Provided is a method that allows for a safer production of a naphthylsilole for use as a starting material for GNR, which involves reacting a compound of formula (1):
Provided is a method that allows for a safer production of a naphthylsilole for use as a starting material for GNR, which involves reacting a compound of formula (1):
(wherein R1a and R1b are the same or different and represent a hydrogen atom, an alkyl group, a cycloalkyl group, a (poly)ether group, an ester group, a halogen atom, an aromatic hydrocarbon group, or a heterocyclic group; R1a and R1b are optionally bound to each other to form a ring; R2 represents an aromatic hydrocarbon ring or a heterocyclic ring; and X represents a bromine or iodine atom) with a lanthanide- and lithium-containing ate complex to produce a lanthanide complex of the compound of formula (1); and then reacting it with a silyl compound of formula (2):
Provided is a method that allows for a safer production of a naphthylsilole for use as a starting material for GNR, which involves reacting a compound of formula (1):
(wherein R1a and R1b are the same or different and represent a hydrogen atom, an alkyl group, a cycloalkyl group, a (poly)ether group, an ester group, a halogen atom, an aromatic hydrocarbon group, or a heterocyclic group; R1a and R1b are optionally bound to each other to form a ring; R2 represents an aromatic hydrocarbon ring or a heterocyclic ring; and X represents a bromine or iodine atom) with a lanthanide- and lithium-containing ate complex to produce a lanthanide complex of the compound of formula (1); and then reacting it with a silyl compound of formula (2):
R3aR3bSiCl2 (2)
Provided is a method that allows for a safer production of a naphthylsilole for use as a starting material for GNR, which involves reacting a compound of formula (1):
(wherein R1a and R1b are the same or different and represent a hydrogen atom, an alkyl group, a cycloalkyl group, a (poly)ether group, an ester group, a halogen atom, an aromatic hydrocarbon group, or a heterocyclic group; R1a and R1b are optionally bound to each other to form a ring; R2 represents an aromatic hydrocarbon ring or a heterocyclic ring; and X represents a bromine or iodine atom) with a lanthanide- and lithium-containing ate complex to produce a lanthanide complex of the compound of formula (1); and then reacting it with a silyl compound of formula (2):
R3aR3bSiCl2 (2)
(wherein R3a and R3b are the same or different and represent an optionally branched C1-C4 alkyl group or a phenyl group).
Provided is an adhesive composition that: includes (A) an acid-modified styrene elastomer and (B) an alicyclic epoxy resin that includes a structure formed by epoxidation of the unsaturated bond of a cyclic olefin structure; but does not include (C) a tertiary amine, a tertiary amine salt, an imidazole, or a cationic polymerization initiator.
Provided is an adhesive composition comprising (A) an acid-modified styrene-based elastomer, (B) an isocyanate compound having at least two isocyanate groups per molecule, (C) fluorine-based polymer microparticles and (D) olefin-based polymer microparticles, in which the molar ratio of isocyanate groups in the isocyanate compound having at least two isocyanate groups per molecule (B) to all acidic groups in the acid-modified styrene-based elastomer (A), i.e., an (isocyanate group)/(all acidic groups) ratio, is 0.3 to 3.0, the content of the fluorine-based polymer microparticles (C) is 15 to 100 parts by weight relative to 100 parts by weight of the acid-modified styrene-based elastomer (A), and the content of the olefin-based polymer microparticles (D) is 7 to 55 parts by weight relative to 100 parts by weight of the acid-modified styrene-based elastomer (A).
C09J 153/02 - Vinyl aromatic monomers and conjugated dienes
C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
C09J 7/30 - Adhesives in the form of films or foils characterised by the adhesive composition
C09J 113/00 - Adhesives based on rubbers containing carboxyl groups
C09J 123/00 - Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondAdhesives based on derivatives of such polymers
C09J 123/30 - Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondAdhesives based on derivatives of such polymers modified by chemical after-treatment by oxidation
C09J 127/12 - Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenAdhesives based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
Provided are: a 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene solution which comprises 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene, an aromatic hydrocarbon, and methanol, wherein the proportion between the aromatic hydrocarbon and the methanol is (aromatic hydrocarbon):methanol=99:1 to 10:90 by weight; and a method for producing 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene which includes the step of crystallizing the 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene out of the solution.
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japan)
TAOKA CHEMICAL CO., LTD. (Japan)
Inventor
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Nakatsuji, Hidefumi
Ueno, Ryoma
Ishida, Shunsuke
Okuda, Sachie
Abstract
For a graphene nanoribbon represented by general formula (1) (in the formula, R1represents a C1-12 linear alkyl group. R3and R4are both hydrogen atoms or R3and R4together form a group represented by SiR2aR2b-; where, R2aand R2b are the same or different and represent a hydrogen atom, an optionally branched C1-4 alkyl group, or a phenyl group. n represents an integer of 1 or higher.), an easier and industrially superior GNR production method and a novel GNR obtained by the production method.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemicals used in industry; chemical reagents other than that for medical or veterinary purposes; chemicals for use in manufacturing rubber products; chemicals for rubber processing applications; chemicals, namely, synthetic resin adhesives for industrial purposes; chemicals, namely, crosslinking agents for rubber processing applications; chemicals, namely, tackifiers used in industry; glues and adhesives for industrial purposes
The present invention provides a method for producing a compound that is represented by general formula (1), said method comprising a step wherein a compound represented by general formula (2) and 2.4 moles or more of a compound represented by general formula (3) relative to 1 mole of the compound represented by general formula (2) are caused to react with each other in the presence of an acid and at least one organic compound that is selected from the group consisting of aliphatic hydrocarbons, aromatic hydrocarbons, halogenated aliphatic hydrocarbons, halogenated aromatic hydrocarbons and esters.
C07D 209/86 - CarbazolesHydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
Provided is an epoxy resin composition comprising (A) a blocked polyurethane, (B) an epoxy resin that has more than two glycidyl groups in each molecule, (C) an epoxy resin that has not more than two glycidyl groups in each molecule, and (D) a latent curing agent, wherein the content of (A) is 20-60 weight parts per 100 weight parts of the total amount of (A), (B), and (C), and the content of (B) is 5-30 weight parts per 100 weight parts of the total amount of (B) and (C).
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
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
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japan)
TAOKA CHEMICAL CO., LTD. (Japan)
Inventor
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Murakami, Kazuo
Nakatsuji, Hidefumi
Ishida, Shunsuke
Abstract
Provided is a method which makes it possible to more safely produce a naphthyl silole to be used as a GNR raw material, by: producing a lanthanoid complex of a compound represented by formula (1) by reacting the compound represented by formula (1) with a lanthanoid and a lithium-containing ate complex; and thereafter, reacting the lanthanoid complex with a silyl compound represented by formula (2). (1) (In the formula, R1aand R1bare identical or different, and each represent a hydrogen atom, an alkyl group, a cycloalkyl group, a (poly)ether group, an ester group, a halogen atom, an aromatic hydrocarbon group, a heterocyclic group; R1aand R1bare bonded to each other and may form a ring; R2represents an aromatic hydrocarbon group or a heterocyclic group; and X represents a bromine atom or an iodine atom.) (2): R3aR3b22 (In the formula, R3aand R3b are identical or different and each represent a phenyl group or an alkyl group that has 1-4 carbon atoms and may have a branch.)
C07C 17/263 - Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
C07C 25/22 - Polycyclic aromatic halogenated hydrocarbons with condensed rings
C07C 309/65 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms of a saturated carbon skeleton
20.
CRYSTALS OF BISNAPHTHOL HAVING FLUORENE SKELETON AND PRODUCTION METHOD THEREFOR
Provided are crystals (A) of the compound represented by formula (1) which, in analysis by X-ray powder diffractometry with a Cu-Kα line, gives a diffraction pattern having diffraction peaks at 2θ's of 9.6°±0.2°, 14.2°±0.2°, 17.6°±0.2°, and 20.7°±0.2° and crystals (B) of the compound represented by formula (1) which, in the analysis, show peaks at 2θ's of 17.8°±0.2°, 20.6°±0.2°, 22.0°±0.2°, and 26.9°±0.2°.
C07B 63/00 - PurificationSeparation specially adapted for the purpose of recovering organic compoundsStabilisationUse of additives
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 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japan)
TAOKA CHEMICAL CO., LTD. (Japan)
Inventor
Itami, Kenichiro
Ito, Hideto
Yano, Yuuta
Matsushima, Kaho
Nakatsuji, Hidefumi
Abstract
The present invention can provide a graphene nanoribbon having at least one structural unit represented by the general formula [in the formula, the dotted lines are the same or different and represent no bond or a single bond. *1 represents a bonding point. *2 represents a bonding point if the dotted line bonded to *2 is a single bond. R3a, R3b, R3c, and R3dare the same or different and represent a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, a (poly)ether group, an ester group, a monovalent aromatic hydrocarbon group, or a monovalent heterocyclic group. R3aand R3band/or R3cand R3d bond together and may form a ring.] by a method having a small number of steps and suppressed secondary reactions.
C08G 61/10 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aromatic carbon atoms, e.g. polyphenylenes
Provided are: a rubber composition containing a butyl rubber, a resol type phenol-formaldehyde co-condensed resin, and a phenol, wherein the rubber composition contains, as the phenol, at least one phenol chosen from the group consisting of phenols represented by general formulas (1), (2), (3) and (4); a production method therefor; and a resin mixture containing a resol type phenol-formaldehyde co-condensed resin, and at least one phenol chosen from the group consisting of phenols represented by general formulas (1), (2), (3) and (4).
C08L 23/22 - Copolymers of isobuteneButyl rubberHomopolymers or copolymers of other iso-olefins
C08G 8/10 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol
C07C 43/23 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups
C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
C08F 20/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
24.
BISARYL ALCOHOL HAVING NAPHTHALENE SKELETON AND METHOD FOR PRODUCING SAME
1231233 is a naphthalene ring. R1denotes a hydrogen atom, an optionally branched alkyl group having 1-6 carbon atoms, a cycloalkyl group having 5-12 carbon atoms or an aryl group having 6-12 carbon atoms. R2a, R2band R2cmay be the same as, or different from, each other, and each denote an optionally branched alkyl group having 1-6 carbon atoms, an aryl group having 6-12 carbon atoms or a halogen atom. R3aand R3beach denote an optionally branched alkylene group having 2-4 carbon atoms. m1, m2 and m3 each denote an integer between 0 and 3, and n1 and n2 each denote an integer of 1 or higher. In cases where at least one of m1, m2 and m3 is 2 or higher, the corresponding R2a, R2bor R2c may be the same as, or different from, each other.
C07C 43/21 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing rings other than six-membered aromatic rings
25.
Bisphenol having fluorene skeleton, method for producing same, polyarylate resin, (meth)acrylate compound and epoxy resin which are derived from the bisphenol
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 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 39/21 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a non-condensed ring
C07C 39/23 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing six-membered aromatic rings and other rings, with unsaturation outside the aromatic rings
C07C 37/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by exchange of hydrocarbon groups which may be substituted, from other compounds, e.g. transalkylation
C07C 67/40 - Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester by oxidation of primary alcohols
C08G 63/197 - Hydroxy compounds containing aromatic rings containing two or more aromatic rings containing condensed aromatic rings
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
26.
METHOD FOR PRODUCING ALCOHOLS HAVING FLUORENE SKELETON
Provided is a method for producing alcohols represented by formula (1), which sequentially comprises in the following order: a step (i) for obtaining a bisnaphthol compound represented by formula (2) by reacting 9-fluorenone and naphthol with each other in the presence of a solid acid; and a step (ii) for reacting the bisnaphthol compound represented by formula (2) with ethylene carbonate without taking out the bisnaphthol compound from the reaction system. (In the formulae, n1 and n2 may be the same or different, and each represents an integer of 1 or more.)
Provided is a method for producing a novolak-type cocondensate including a constitutional unit derived from p-tert-octylphenol, cresol, formaldehyde, and resorcin, the method comprising the following steps in sequence: (1) a step for reacting p-tert-octylphenol and cresol with formaldehyde at 80-120°C in the presence of 0.05-0.45 moles of a base with respect to 1 mole total of the p-tert-octylphenol and cresol to obtain a resol-type condensate having a number average molecular weight (Mn) of at least 600 as measured by a gel permeation chromatography (GPC) method; (2) a step for neutralizing the base used in step (1) with at least an equivalent amount of an acid; and (3) a step for reacting 0.2-0.8 moles of resorcin with the resol-type condensate with respect to 1 mole total of the p-tert-octylphenol and cresol.
C08G 8/00 - Condensation polymers of aldehydes or ketones with phenols only
C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
The present invention addresses the problem of providing a novel polyimide which has a fluorene skeleton and which has low birefringence, and it was found that this problem can be solved by a polyimide which has a constituent unit derived from an amine represented by general formula (1) and a constituent unit derived from an acid dianhydride in the main chain. Provided is a polyimide which has a constituent unit derived from an amine represented by general formula (1) and a constituent unit derived from an acid dianhydride in the main chain. (In general formula (1): R1 and R2 each independently denote an alkyl group having 1-12 carbon atoms, a halogen atom, a hydroxyl group, a cycloalkyl group optionally having a substituent group having 4-12 carbon atoms, or an aromatic group optionally having a substituent group having 6-12 carbon atoms; and m and n are each an integer between 0 and 4. Moreover, in cases where a plurality of R1 and/or R2 groups are present, these may be the same as, or different from, each other.)
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
C07D 311/96 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings spiro-condensed with carbocyclic rings or ring systems
C08G 73/06 - Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromoleculePolyhydrazidesPolyamide acids or similar polyimide precursors
Provided is a method for producing a novolac-type cocondensation product, wherein the novolac-type cocondensation product contains a structural unit derived from at least one phenol compound represented by general formula (i), a structural unit derived from formaldehyde and a structural unit derived from resorcin, and a structural unit derived from p-tert-butylphenol makes up 65 mol% or more of the structural unit derived from the phenol compound. The production method involves, in this order, the steps of (1) reacting the phenol compound with formaldehyde at 75ºC or higher in the presence of a base in an amount of 0.05 mole or more relative to 1 mole of the phenol compound to produce a resol-type condensation product having a number average molecular weight of 600 or more as measured by a GPC method, (2) mixing a reaction solution containing the resol-type condensation product produced in step (1) with an acid in an equivalent amount to the amount of the base used in step (1) or more, and (3) reacting the resol-type condensation product with resorcin in an amount of 0.5 to 1.2 moles relative to 1 mole of the phenol compound.
C08G 8/00 - Condensation polymers of aldehydes or ketones with phenols only
C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
Provided is a method for producing an alcohol represented by general formula (2), comprising reacting a phenol represented by general formula (1) with an alkylene carbonate in the presence of at least one compound selected from the group consisting of a glycol diether and a ketone having 4 to 12 carbon atoms. In general formulae (1) and (2), R1 and R2 may be the same as or different from each other and independently represent a halogen atom, an alkyl group or an alkoxyl group; and n1 and n2 may be the same as or different from each other and independently represent an integer of 0 or 1 to 3. In general formula (2), R3 and R4 may be the same as or different from each other and independently represent an optionally branched alkylene group having 2 to 4 carbon atoms.
Provided are a method for producing an alcohol compound represented by formula (1) wherein the method includes, in this order, a step (i) for preparing a solution including an alcohol compound represented by formula (1), aromatic hydrocarbons, and methanol, a step (ii) for precipitating crystals of the alcohol compound from the solution at 25°C or higher and separating and acquiring the precipitated crystals, and a step (iii) for removing the methanol from the crystals at 60°C or higher, and crystals of an alcohol compound represented by formula (1) wherein the crystals substantially do not have a 1153±2 (cm-1) peak in the infrared absorption spectrum.
Provided are: a tetracarboxylic dianhydride represented by formula (1) and a method for producing the tetracarboxylic dianhydride; and a polyamic acid and a polyimide each produced from the tetracarboxylic dianhydride.
C07D 307/89 - Benzo [c] furansHydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
33.
BISPHENOL HAVING FLUORENE SKELETON AND PRODUCTION METHOD THEREOF, POLYARYLATE RESIN DERIVED FROM SAID BISPHENOL, (METH)ACRYLATE COMPOUND AND EPOXY RESIN
A bisphenol represented by general expression (1) and a production method thereof, a polyarylate resin derived from said bisphenol, a (meth)acrylate compound, and an epoxy resin are provided. In expression (1), R1 to R4 are the same or different and represent an alkyl group, an aryl group or a halogen atom; n1 and n2 are the same or different and represent an integer between 1 and 4; k1 to k4 are the same or different and represent an integer between 0 and 4; and, if at least one of k1 to k4 is greater than or equal to 2, then the corresponding R1 to R4 are the same or different.
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 37/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by exchange of hydrocarbon groups which may be substituted, from other compounds, e.g. transalkylation
34.
CRYSTAL OF ALCOHOL HAVING FLUORENE SKELETON AND METHOD FOR PRODUCING SAME
Provided are: a crystal of an alcohol having a fluorene skeleton represented by formula (1) which shows a melting endothermic peak temperature of 173-176°C in differential scanning calorimetry; a crystal of an alcohol having a fluorene skeleton represented by formula (1) which shows a melting endothermic peak temperature of 190-196°C; a crystal of an alcohol having a fluorene skeleton represented by formula (1) which shows a melting endothermic peak temperature of 167-170°C; and a method for producing the same.
Provided are: crystals of an alcohol having a fluorene skeleton represented by formula (1) in which the melt endotherm maximum temperature by differential scanning calorimetry is 148-151°C; and a method for producing the crystals, the method including, in order, a step for obtaining a reaction solution that includes an alcohol having a fluorene skeleton represented by formula (1), a step for preparing a crystallization solution that includes aromatic hydrocarbons and methanol and that has a water content of 1 wt% or less, a step for precipitating crystals from the crystallization solution at 25°C or higher and separating the precipitated crystals, and a step for bringing the crystals to 60°C or higher and removing the methanol.
A polyimide, which is produced from a tetracarboxylic acid dianhydride represented by formula (1) and having both a cyclic hydrocarbon skeleton and an ester group, has excellent solubility in solvents, excellently low dielectric properties and excellent transparency. (In the formula, x represents an integer of 1-11; each of R1 and R2 independently represents an alkyl group having 1-12 carbon atoms, a halogen atom, a hydroxyl group, a cycloalkyl group having 4-16 carbon atoms or an aromatic group having 6-12 carbon atoms, and in cases where a plurality of R1 moieties and/or R2 moieties are present, the R1 moieties and/or the R2 moieties may be the same as or different from each other, respectively; and each of m and n independently represents 0 or an integer of 1-4.)
A tetracarboxylic dianhydride represented by formula (1), and a polyimide or polyimide copolymer produced from this tetracarboxylic dianhydride, are used. This makes it possible to provide a polyimide and a polyimide copolymer having exceptional solvent solubility (solvent processability) and heat resistance, as well as a polyimide film containing the same.
C07D 407/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
The present invention provides a co-condensate containing a structural unit derived from p-tert-butylphenol, a structural unit derived from o-phenylphenol, and a structural unit derived from resorcin, and having a softening point of 150° C. or lower; a method for producing the co-condensate including reacting a mixture of p-tert-butylphenol and o-phenylphenol with formaldehyde in the presence of an alkali, and then reacting resorcin in a 0.8-fold molar amount or more relative to a total amount of p-tert-butylphenol and o-phenylphenol; and a rubber composition containing the co-condensate.
C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
Provided are a 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene crystal having a prescribed crystal form, and a method for producing 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene crystals, the method including: a step for precipitating first crystals of 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene from a first solution obtained by dissolving 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene in at least one type of solvent selected from aromatic hydrocarbons, and then obtaining a mother solution by solid-liquid separation; a step for preparing a second solution in which 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene is dissolved using at least part of the mother solution; and a step for precipitating second crystals of 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene from the second solution at a temperature of 60ºC or lower.
A method for collecting a bisphenol fluorene compound that has high purity and a good color hue and can be re-used as a raw material for optical resins, said method being characterized by comprising hydrolyzing a polycarbonate resin having a fluorene structure in the presence of an aqueous metal hydroxide solution to thereby produce a bisphenol fluorene compound, and then partitioning the bisphenol fluorene compound selectively in an organic solvent without carrying out a special procedure such as a treatment with an acid to thereby separate the bisphenol fluorene compound from other bisphenol components and inorganic components.
The present invention is a method for collecting a bisphenoxy alcohol fluorene compound, which is a starting material for the production of a polycarbonate resin having a fluorene structure, from a waste polycarbonate resin having a fluorene structure with high purity and with high efficiency, said method being characterized by comprising reacting a polycarbonate resin having a fluorene structure, which is produced using a bisphenoxy alcohol fluorene compound as a starting material, using an aqueous metal hydroxide solution in the presence or absence of a specific organic solvent under mild conditions.
The present invention includes a binaphthalene skeleton-containing epoxy resin having a structure represented by formula (1) (1) (In the formula, n is an integer of 0 or 1 or more). The present invention also includes a method for producing a novel binaphthalene skeleton-containing epoxy resin represented by formula (1) which comprises reacting a 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene with an epihalohydrin in the presence of an alkali metal hydroxide.
A resol-type para-octylphenol-formaldehyde co-condensation resin and a method for producing the same are provided, the resol-type para-octylphenol-formaldehyde co-condensation resin having a content of a para-octylphenol monomer of 1 wt. % or less, having a total content of an aliphatic hydrocarbon, a halogenated aliphatic hydrocarbon, an aromatic hydrocarbon, a halogenated aromatic hydrocarbon, and an alcohol having 1 to 8 carbon atoms of 1 wt. % or less, the aliphatic hydrocarbon, the halogenated aliphatic hydrocarbon, the aromatic hydrocarbon, the halogenated aromatic hydrocarbon, and the alcohol having a boiling point of 60° C. or more, having a softening point of 70 to 105° C., and having an acid value of 20 to 28 KOHmg/g. The resol-type para-octylphenol-formaldehyde co-condensation resin can be used as a resin cross-linking agent for a rubber.
C08G 8/12 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with monohydric phenols having only one hydrocarbon substituent ortho or para to the OH group, e.g. p-tert.-butyl phenol
C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
C08L 61/06 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
44.
COCONDENSATE AND METHOD FOR PRODUCING SAME, AND RUBBER COMPOSITION CONTAINING COCONDENSATE
Provided are: a cocondensate having a softening point of 150°C or lower and containing a structural unit derived from p-tert-butylphenol, a structural unit derived from o-phenylphenol, and a structural unit derived from resorcin; a method for producing the cocondensate by reacting a mixture of p-tert-butylphenol and o-phenylphenol with formaldehyde in the presence of an alkali, and then performing reaction with a 0.8-fold molar quantity or more of resorcin with respect to the total amount of p-tert-butylphenol and o-phenylphenol; and a rubber composition containing the cocondensate.
C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
Provided are: a fluorene-based polymer which contains a constituent unit derived from a fluorene-based diol compound represented by general formula (I) in the main chain; the fluorene-based diol compound; and a method for producing the fluorene-based diol compound. (In the formula, R1 represents an alkyl group, a cycloalkyl group or an aryl group; R2 represents an alkylene group having 2-6 carbon atoms; and n represents an integer of 1-5.)
The present invention provides a fluorene polymer containing in the main chain constituent units derived from a fluorene diol compound represented by general formula (I) (in the formula, R1 represents an alkyl group, cycloalkyl group, or aryl group), the fluorene diol compound (in the formula, R1 represents a C2 or higher alkyl group, cycloalkyl group, or aryl group), and a method for producing the fluorene diol compound (in the formula, R1 represents an alkyl group, cycloalkyl group, or aryl group).
C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
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 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
C08G 63/199 - Acids or hydroxy compounds containing cycloaliphatic rings
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemicals for use in industry; chemicals for use in science
other than for medical and veterinary use; plastic
adhesives, not for stationery or household purposes;
adhesives for industrial purposes.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemicals for use in industry; chemicals for use in science other than for medical and veterinary use; plastic adhesives, not for stationery or household purposes; adhesives for industrial purposes
49.
RESOL TYPE PARA OCTYL PHENOL-FORMALDEHYDE COCONDENSATION RESIN AND METHOD FOR PRODUCING SAME
Provided are: a resol type para octyl phenol-formaldehyde cocondensation resin which contains 1 weight% or less of a para octyl phenol monomer, contains 1 weight% or less of a total of an aliphatic hydrocarbon, a halogenated aliphatic hydrocarbon, an aromatic hydrocarbon, a halogenated aromatic hydrocarbon and alcohols having 1 to 8 carbon atoms which have a boiling point of 60°C or more, has a softening point of 70 to 105°C, and has an acid value of 20 to 28 KOHmg/g; and a method for producing the same. This resol type para octyl phenol-formaldehyde cocondensation resin can be used as a resin crosslinking agent for rubber.
C08G 8/12 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with monohydric phenols having only one hydrocarbon substituent ortho or para to the OH group, e.g. p-tert.-butyl phenol
The present invention provides an ethyl-2-cyanoacrylate adhesive composition obtained as a result of significant improvement on conventional problems, that is, irritating odor and whitening of conventional ethyl-2-cyanoacrylate adhesive compositions. According to a method of the present invention for purifying an ethyl-2-cyanoacrylate adhesive composition, a sum total of an acrylonitrile content and an ethanol content is arranged to be in a range of 1 ppm to 150 ppm, by carrying out deaeration at the same time as injection of an inactive gas at a reduced pressure in a range of 100 Pa to 10000 Pa at a temperature in a range of 5° C. to 50° C. Thereby, the method of the present invention allows improving irritating odor and whitening.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
Provided is a 2-cyanoacrylate-purifying method which can decolorize a 2-cyanoacrylate that has undergone discoloration and which can minimize the after discoloration of the resulting decolorized 2-cyanoacrylate. The 2-cyanoacrylate-purifying method includes: adding a specific aromatic polyhydroxyl compound to a 2-cyanoacrylate that has undergone discoloration; and after a lapse of 0.5 day or longer at 0 to 40°C, subjecting the resulting mixture to reduced-pressure distillation.
C07C 255/23 - Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same unsaturated acyclic carbon skeleton
A method for producing a fluorene derivative by reacting fluorenone with a phenol or a phenoxyalcohol in the presence of an acid catalyst includes: adding an alkali to an obtained reaction liquid containing a fluorene derivative; and concentrating a resultant mixture liquid without removing the alkali thus added and a reaction product of the alkali, thereby separating an unreacted phenol or unreacted phenoxyalcohol.
Provided is an ethyl-2-cyanoacryalte adhesive composition which is remarkably improved in terms of irritating odor generation and whitening in comparison to conventional ethyl-2- cyanoacrylate adhesives (which suffer from problematic irritating odor generation and whitening). Also provided is a method for the purification of an ethyl-2-cyanoacrylate adhesive composition which comprises deaerating an ethyl-2 -cyanoacrylate adhesive composition while blowing an inert gas thereinto under a reduced pressure of 100 to 10000Pa at a temperature of 5 to 50°C to lower the total content of acrylonitrile and ethanol to a level of 1 to 150ppm. Thus, the method can achieve an improvement in terms of irritating odor generation and whitening.
Provided is a novel non-crystalline form of 9,9-bis(4-hydroxy-3- methylphenyl)fluorene which can keep specific quality and which is excellent as a raw material for polymers. Also provided is a process for the preparation of the non-crystalline form. The novel non-crystalline form of 9,9-bis(4-hydroxy-3-methyl- phenyl)fluorene can be prepared by cooling and solidifying a melt of 9,9-bis(4-hydroxy-3-methylphenyl)fluorene. The novel non-crystalline form has the properties that the non-crystalline form has little risk of causing dust explosion or ill heath and that the particle size can be freely changed by pulverization or the like in accordance with facilities and uses, thus being advantageous to industrial handling.
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 37/68 - SeparationPurificationStabilisationUse of additives
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
55.
NONCRYSTALLINE FORM OF FLUORENE DERIVATIVE AND PROCESS FOR PREPARATION THEREOF
Provided are a novel noncrystalline form of 9,9-bis(4-(2- hydroxyethoxy)phenyl)fluorene which can maintain constant quality and which serves as an excellent starting material for polymers, and a process for the preparation of the noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene. The novel noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)- phenyl)fluorene can be prepared by cooling and solidifying a melt of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene. The novel noncrystalline form of 9,9-bis(4-(2-hydroxyethoxy)- phenyl)fluorene is less liable to cause dust explosion or health hazard, and has a property that the particle size can be freely changed by pulverization or the like in accordance with equipment or use, said property being advantageous to industrial handling.
Disclosed is a method for producing a fluorene derivative by reacting a fluorenone with a phenol compound or a phenoxy alcohol compound in the presence of an acid catalyst, wherein an alkali is added into the resultant reaction liquid that contains a fluorene derivative, and then the resultant reaction mixture is concentrated and the unreacted phenol compound or phenoxy alcohol compound is separated therefrom by the concentration process, without removing the added alkali and the reaction product of the alkali.
Disclosed is a process for producing a crystal polymorph of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, which comprises the steps of: reacting fluorenone with 2-phenoxyethanol in the presence of a heteropoly acid; causing the crystallization of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene from the reaction mixture at a temperature lower than 50°C to produce a crude product of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene; dissolving the crude product in at least one solvent selected from the group consisting of an aromatic hydrocarbon solvent, a ketone solvent and an ester solvent; and causing the crystallization of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene from the reaction mixture at a temperature of 50°C or higher.
