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 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques
C07C 37/01 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par remplacement des groupes fonctionnels liés à un cycle aromatique à six chaînons par des groupes hydroxyle, p. ex. par hydrolyse
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 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation
C07C 69/753 - Esters d'acides carboxyliques dont un groupe carboxyle est lié à un atome de carbone d'un cycle autre qu'un cycle aromatique à six chaînons d'acides polycycliques
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 - Éthers le groupe hydroxyle de l'ester étant éthérifié par un composé hydroxylé dont le groupe hydroxyle est lié à un atome de carbone d'un cycle aromatique à six chaînons
B01J 31/12 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des composés organométalliques ou des hydrures métalliques
C07C 67/52 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation
National University Corporation Tokai National Higher Education and Research System (Japon)
TAOKA CHEMICAL CO., LTD. (Japon)
Inventeur(s)
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Nakatsuji, Hidefumi
Ueno, Ryoma
Ishida, Shunsuke
Okuda, Sachie
Abrégé
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 - Composés contenant des groupes amino et carboxyle liés au même squelette carboné ayant des groupes amino et carboxyle liés à des atomes de carbone de cycles aromatiques à six chaînons du même squelette carboné avec des groupes amino et carboxyle liés à des atomes de carbone du même cycle aromatique à six chaînons non condensé avec des groupes amino et carboxyle liés en positions méta ou para
C07C 205/57 - Composés contenant des groupes nitro liés à un squelette carboné le squelette carboné étant substitué de plus par des groupes carboxyle ayant des groupes nitro et des groupes carboxyle liés à des atomes de carbone de cycles aromatiques à six chaînons du squelette carboné
C07C 227/04 - Formation de groupes amino dans des composés contenant des groupes carboxyle
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
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 (Japon)
Taoka Chemical Co., Ltd. (Japon)
Inventeur(s)
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Murakami, Kazuo
Nakatsuji, Hidefumi
Ishida, Shunsuke
Abrégé
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).
C07F 7/08 - Composés comportant une ou plusieurs liaisons C—Si
C07C 25/22 - Hydrocarbures halogénés aromatiques polycycliques à cycles condensés
C07C 17/26 - Préparation d'hydrocarbures halogénés par des réactions comportant un accroissement du nombre des atomes de carbone dans le squelette
C07D 333/12 - Radicaux substitués par des atomes d'halogènes ou par des radicaux nitro ou nitroso
C07C 309/65 - Esters d'acides sulfoniques ayant des atomes de soufre de groupes sulfo estérifiés liés à des atomes de carbone acycliques d'un squelette carboné saturé
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 - Monomères vinyliques aromatiques et diènes conjugués
C08G 18/34 - Acides carboxyliquesLeurs esters avec des composés monohydroxylés
C09J 7/30 - Adhésifs sous forme de films ou de pellicules caractérisés par la composition de l’adhésif
C09J 113/00 - Adhésifs à base de caoutchoucs contenant des groupes carboxyle
C09J 123/00 - Adhésifs à base d'homopolymères ou de copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneAdhésifs à base de dérivés de tels polymères
C09J 123/30 - Adhésifs à base d'homopolymères ou de copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneAdhésifs à base de dérivés de tels polymères modifiés par post-traitement chimique par oxydation
C09J 127/12 - Adhésifs à base d'homopolymères ou de copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un halogèneAdhésifs à base de dérivés de tels polymères non modifiés par un post-traitement chimique contenant des atomes de fluor
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.
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
13.
NOVEL GRAPHENE NANORIBBON AND METHOD FOR PRODUCING SAME
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
TAOKA CHEMICAL CO., LTD. (Japon)
Inventeur(s)
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Nakatsuji, Hidefumi
Ueno, Ryoma
Ishida, Shunsuke
Okuda, Sachie
Abrégé
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 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et 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 - CarbazolesCarbazoles hydrogénés avec uniquement des atomes d'hydrogène, des radicaux hydrocarbonés ou des radicaux hydrocarbonés substitués, liés directement aux atomes de carbone du système cyclique
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 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés
H01L 23/29 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par le matériau
H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
TAOKA CHEMICAL CO., LTD. (Japon)
Inventeur(s)
Itami, Kenichiro
Ito, Hideto
Matsushima, Kaho
Murakami, Kazuo
Nakatsuji, Hidefumi
Ishida, Shunsuke
Abrégé
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 - Préparation d'hydrocarbures halogénés par des réactions comportant un accroissement du nombre des atomes de carbone dans le squelette par des réactions de condensation
C07C 25/22 - Hydrocarbures halogénés aromatiques polycycliques à cycles condensés
C07C 309/65 - Esters d'acides sulfoniques ayant des atomes de soufre de groupes sulfo estérifiés liés à des atomes de carbone acycliques d'un squelette carboné saturé
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 - PurificationSéparation spécialement adaptée aux fins d'isolement des composés organiquesStabilisationEmploi d'additifs
C07C 39/17 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques contenant d'autres cycles en plus des cycles aromatiques à six chaînons
C07C 37/84 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par cristallisation
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
TAOKA CHEMICAL CO., LTD. (Japon)
Inventeur(s)
Itami, Kenichiro
Ito, Hideto
Yano, Yuuta
Matsushima, Kaho
Nakatsuji, Hidefumi
Abrégé
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 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aromatiques, p. ex. polyphénylènes
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 - Copolymères de l'isobutylèneCaoutchouc butylHomopolymères ou copolymères d’autres iso-oléfines
C08G 8/10 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec du phénol
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
C08F 20/30 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des cycles aromatiques dans la partie alcool
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 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 43/21 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des cycles autres que des cycles aromatiques à six chaînons
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 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques tous les groupes hydroxyle étant liés à des cycles non condensés
C07C 39/17 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques contenant d'autres cycles en plus des cycles aromatiques à six chaînons
C07C 39/21 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques ne contenant que des cycles aromatiques à six chaînons dans la partie cyclique, avec une insaturation autre que celle des cycles au moins un groupe hydroxyle étant lié à un cycle non condensé
C07C 39/23 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques contenant des cycles aromatiques à six chaînons et d'autres cycles avec une insaturation autre que celle des cycles aromatiques
C08F 22/14 - Esters ne contenant pas de groupes acide carboxylique libres
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C08G 63/193 - Composés hydroxylés contenant des cycles aromatiques contenant plusieurs cycles aromatiques
C07C 37/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par échange de groupes hydrocarbonés, éventuellement substitués, avec d'autres composés, p. ex. par transalkylation
C07C 67/40 - Préparation d'esters d'acides carboxyliques par oxydation des groupes précurseurs de la partie acide de l'ester d'alcools primaires
C08G 63/197 - Composés hydroxylés contenant des cycles aromatiques contenant plusieurs cycles aromatiques contenant des cycles aromatiques condensés
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
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.)
C07C 41/16 - Préparation d'éthers par réactions d'esters d'acides minéraux ou organiques avec des groupes hydroxyle ou O-métal
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
27.
NOVOLAK-TYPE COCONDESATE, METHOD FOR PRODUCING SAME, RESIN COMPOSITION, AND RUBBER COMPOSITION
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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols
C08G 8/24 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des mélanges de plusieurs phénols qui ne sont pas couverts par un seul des groupes
C08K 5/09 - Acides carboxyliquesLeurs sels métalliquesLeurs anhydrides
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
C08L 61/06 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes avec des phénols
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-acides ou précurseurs similaires de polyimides
C07D 311/96 - Composés hétérocycliques contenant des cycles à six chaînons comportant un atome d'oxygène comme unique hétéro-atome du cycle, condensés avec d'autres cycles condensés en spiro avec des carbocycles ou avec des systèmes carbocycliques
C08G 73/06 - Polycondensats possédant des hétérocycles contenant de l'azote dans la chaîne principale de la macromoléculePolyhydrazidesPolyamide-acides ou précurseurs similaires de polyimides
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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols
C08G 8/24 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des mélanges de plusieurs phénols qui ne sont pas couverts par un seul des groupes
C08K 5/09 - Acides carboxyliquesLeurs sels métalliquesLeurs anhydrides
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.
C07C 41/16 - Préparation d'éthers par réactions d'esters d'acides minéraux ou organiques avec des groupes hydroxyle ou O-métal
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
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.
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
32.
TETRACARBOXYLIC DIANHYDRIDE, POLYAMIC ACID, AND POLYIMIDE
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] furannesBenzo [c] furannes hydrogénés avec deux atomes d'oxygène liés directement en positions 1 et 3
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
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 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques contenant d'autres cycles en plus des cycles aromatiques à six chaînons
C07C 37/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par échange de groupes hydrocarbonés, éventuellement substitués, avec d'autres composés, p. ex. par 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.
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 41/16 - Préparation d'éthers par réactions d'esters d'acides minéraux ou organiques avec des groupes hydroxyle ou O-métal
35.
CRYSTALS OF ALCOHOL HAVING FLUORENE SKELETON, AND METHOD FOR PRODUCING 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.
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
36.
TETRACARBOXYLIC ACID DIANHYDRIDE HAVING CYCLIC HYDROCARBON SKELETON AND ESTER GROUP, POLYAMIC ACID AND POLYIMIDE
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 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes d'oxygène comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant au moins trois hétérocycles
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des mélanges de plusieurs phénols qui ne sont pas couverts par un seul des groupes
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
C08L 7/00 - Compositions contenant du caoutchouc naturel
C08L 61/12 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes avec des phénols avec des phénols polyhydriques
39.
CRYSTAL POLYMORPH OF 2,2'-BIS(2-HYDROXYETHOXY)-1,1'-BINAPHTHALENE AND METHOD FOR PRODUCING SAME
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.
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
40.
METHOD FOR COLLECTING BISPHENOL FLUORENE COMPOUND FROM RESIN CONTAINING FLUORENE STRUCTURE
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.
C07C 41/38 - SéparationPurificationStabilisationEmploi d'additifs par traitement liquide-liquide
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
41.
METHOD FOR DEPOLYMERIZATION OF POLYCARBONATE RESIN HAVING FLUORENE STRUCTURE
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.
C07C 41/26 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par introduction de groupes hydroxyle ou O-métal
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
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.
C07D 301/28 - Condensation d'épihalohydrines ou d'halohydrines avec des composés contenant des atomes d'hydrogène actif par réaction avec des radicaux hydroxyle
C07D 303/28 - Éthers avec des composés hydroxylés contenant des cycles oxirane
43.
Resol-type para-octylphenol-formaldehyde co-condensation resin and method for producing the same
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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des phénols monohydriques n'ayant qu'un seul substituant hydrocarboné en ortho ou en para par rapport au groupe OH, p. ex. p-tert.-butylphénol
C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
C08L 23/26 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures aliphatiques non saturés ne possédant qu'une seule liaison double carbone-carboneCompositions contenant des dérivés de tels polymères modifiées par post-traitement chimique
C08L 61/06 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes avec des phénols
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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des mélanges de plusieurs phénols qui ne sont pas couverts par un seul des groupes
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
C08L 61/06 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes avec des phénols
45.
FLUORENE-BASED POLYMER, FLUORENE-BASED DIOL COMPOUND AND METHOD FOR PRODUCING SAME
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.)
C08G 64/06 - Polycarbonates aromatiques ne contenant pas d'insaturations aliphatiques
C07C 41/16 - Préparation d'éthers par réactions d'esters d'acides minéraux ou organiques avec des groupes hydroxyle ou O-métal
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C08G 63/197 - Composés hydroxylés contenant des cycles aromatiques contenant plusieurs cycles aromatiques contenant des cycles aromatiques condensés
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 - Polycarbonates aliphatique-aromatiques ou araliphatiques
C07C 37/20 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par des réactions augmentant le nombre d'atomes de carbone au moyen d'aldéhydes ou de cétones
C07C 39/17 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques contenant d'autres cycles en plus des cycles aromatiques à six chaînons
C08G 63/199 - Acides ou composés hydroxylés contenant des cycles cycloaliphatiques
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et 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 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et 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 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des phénols monohydriques n'ayant qu'un seul substituant hydrocarboné en ortho ou en para par rapport au groupe OH, p. ex. p-tert.-butylphénol
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
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 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
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 - Nitriles d'acides carboxyliques ayant des groupes cyano liés à des atomes de carbone acycliques contenant des groupes cyano et des groupes carboxyle, autres que des groupes cyano, liés au même squelette carboné acyclique non saturé
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.
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
C07C 41/30 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par augmentation du nombre d'atomes de carbone, p. ex. par oligomérisation
B01J 27/188 - PhosphoreSes composés avec de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium avec du chrome, du molybdène, du tungstène ou du polonium
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 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons polycycliques sans autre insaturation que celle des cycles aromatiques contenant d'autres cycles en plus des cycles aromatiques à six chaînons
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.
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
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.
C07C 41/30 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par augmentation du nombre d'atomes de carbone, p. ex. par oligomérisation
B01J 27/188 - PhosphoreSes composés avec de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium avec du chrome, du molybdène, du tungstène ou du polonium
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
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.
C07C 41/40 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
C07C 41/30 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par augmentation du nombre d'atomes de carbone, p. ex. par oligomérisation
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal