Abstract: 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.

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): (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).

Abstract: Provided are a bisphenol represented by the general formula (1), a method for producing the bisphenol, and a polyarylate resin, a (meth)acrylate compound and an epoxy resin which are derived from the bisphenol. In the formula (1), R1 to R4 are the same or different, and each represent an alkyl group, an aryl group or a halogen atom, n1 and n2 are the same or different, and each represent an integer of 1 to 4, and k1 to k4 are the same or different, and each represent 0 or an integer of 1 to 4. When at least one of k1 to k4 is 2 or more, corresponding R1 to R4 may be the same or different.

Abstract: Provided are a bisphenol represented by the general formula (1), a method for producing the bisphenol, and a polyarylate resin, a (meth)acrylate compound and an epoxy resin which are derived from the bisphenol. In the formula (1), R1 to R4 are the same or different, and each represent an alkyl group, an aryl group or a halogen atom, n1 and n2 are the same or different, and each represent an integer of 1 to 4, and k1 to k4 are the same or different, and each represent 0 or an integer of 1 to 4. When at least one of k1 to k4 is 2 or more, corresponding R1 to R4 may be the same or different.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Provided is a 2-cyanoacrylate-purifying method for decoloring a 2-cyanoacrylate which has been colored, and preventing further coloring of the 2-cyanoacrylate thus decolored. The 2-cyanoacrylate-purifying method includes the steps of: (a) adding a specific polyhydric aromatic compound to the 2-cyanoacrylate which has been colored; and (b) storing, at a temperature in a range of 0° C. to 40° C. for 0.5 day or more, the resulting mixture obtained in the step (a), and then subjecting the mixture to reduced pressure distillation.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Provided is a 2-cyanoacrylate-purifying method for decoloring a 2-cyanoacrylate which has been colored, and preventing further coloring of the 2-cyanoacrylate thus decolored. The 2-cyanoacrylate-purifying method includes the steps of: (a) adding a specific polyhydric aromatic compound to the 2-cyanoacrylate which has been colored; and (b) storing, at a temperature in a range of 0° C. to 40° C. for 0.5 day or more, the resulting mixture obtained in the step (a), and then subjecting the mixture to reduced pressure distillation.

Abstract: 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.

Abstract: An object of the present invention is to provide (i) a novel non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, which non-crystalline form maintains quality at a certain level, and is excellent as a polymer material, and (ii) a method of preparing the non-crystalline form. According to the present invention, molten 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene in a liquid form is cooled and therefore is solidified. With the method, it is possible to provide a novel non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene which has a small risk that powder dust of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene might cause explosion or a health problem. Further, the non-crystalline form of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene can be adjusted arbitrarily in particle diameter by, for example, pulverizing the non-crystalline form in accordance with equipment or usage.

Abstract: 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.

Abstract: According to the present invention, a composite container for an adhesive includes: an aluminum container which contains an adhesive; and a resin outer container for holding the aluminum container, the resin outer container being provided with (a) window holes on both side wall surfaces of the resin outer container and (b) two press sections for indirectly pressing the aluminum container through the window holes, each of the press sections being provided with a deformable plate-like spring whose one end is fixed to an upper end of the press section which upper end is in contact with the aluminum container.