Abstract: A compound represented by the Formula below is provided. (in Formula (1), X denotes a divalent linking group, R1 and R2 independently denote an alkyl group having 3 or more carbons and having at least one hydroxy group or an aralkyl group having 8 or more carbons and having at least one hydroxy group, the alkyl group and aralkyl group may have a substituent, and M denotes a hydrogen atom or a cation). There is also provided a polyurethane resin obtained by polymerization of a polyisocyanate and a polyol that includes the compound. There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder that includes the polyurethane resin.

Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support, wherein the magnetic layer comprises a compound denoted by general formula (1): wherein, in general formula (1), X denotes a divalent linking group, each of R1 and R2 independently denotes an alkyl group having 2 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, or an aryloxyalkyl group having 7 to 20 carbon atoms, and M denotes a hydrogen atom or a cation.

Abstract: A method of producing a metal phthalocyanine compound, which contains: conducting a reaction between at least two compounds selected from among Compounds A to F of formula (I), and a metal compound, in a buffer solution of an organic base or an inorganic base and an acid, in the presence of a dehydrating agent: wherein R is a hydrogen atom or a substituent; l is an integer of 0 to 4; a plurality of Rs may be the same or different from each other when l is 2 to 4; and G is a group of atoms necessary for forming at least one of a 5- or 6-membered aromatic ring and a 5- or 6-membered hetero ring.

Abstract: The present invention relates to a method of manufacturing a magnetic recording medium wherein the magnetic layer coating liquid comprising a ferromagnetic powder having an average particle size of 10 to 40 nm and a moisture content of 0.3 to 3.0 weight percent; a binder (a) comprising 0.2 to 0.7 meq/g of at least one polar group selected from the group consisting of —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2, and COOM (M denotes a hydrogen atom or the like) and having a weight average molecular weight of 20,000 to 200,000, and/or (b) comprising 0.5 to 5 meq/g of at least one polar group selected from the group consisting of —CONR1R2, —NR1R2, and —NR+R1R2R3 (wherein R1, R2, and R3 each independently denote a hydrogen atom or the like) and having a weight average molecular weight of 20,000 to 200,000; and a compound comprising at least one carboxyl group and/or hydroxyl group per molecule.

Abstract: An aspect of the present invention relates to a method of modifying a surface of a powder, comprising mixing a powder with a heterocyclic compound comprising at least one hydroxylic group and/or carboxylic group. The present invention further relates to a magnetic recording medium and a coating material.

Abstract: An aspect of the present invention relates to a method of modifying a surface of a magnetic powder, comprising mixing a magnetic powder with a cyclic compound comprising at least one carboxylic group. A further aspect of the present invention relates to a magnetic coating material comprising a magnetic powder and a binder, further comprising a cyclic compound comprising at least one carboxylic group.

Abstract: A compound represented by the Formula below is provided. (in Formula (1), X denotes a divalent linking group, R1 and R2 independently denote an alkyl group having 3 or more carbons and having at least one hydroxy group or an aralkyl group having 8 or more carbons and having at least one hydroxy group, the alkyl group and aralkyl group may have a substituent, and M denotes a hydrogen atom or a cation). There is also provided a polyurethane resin obtained by polymerization of a polyisocyanate and a polyol that includes the compound. There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder that includes the polyurethane resin.

Abstract: Provided is a method of manufacturing a bipyridinium compound denoted by general formula (A). In general formula (A), Ar1 and Ar2 each independently denote an optionally substituted (hetero)aryl group, R3 and R4 each independently denote a substituent that may form a ring with a pyridine ring to which the substituent substitutes, m3 and m4 each independently denote an integer ranging from 0 to 4, X denotes a halogen atom or RSO3, and R denotes an optionally substituted aryl group or alkyl group. The method can manufacture a 4,4?-bipyridinium compound under mild reaction conditions in an integrated manner without separation of intermediates.

Abstract: This invention provides a method for producing an optically active aziridine compound or amine compound, which uses as a catalyst a Ru(salen)(CO) complex represented by the following formula (I) or its enantiomer having a high stability, in a high turnover number (TON) and a high enantioselectivity. In the formula (I), Ar is represented by the following formula (VI) or (VII), wherein in the formula (VI), Xs are independently a halogen or a halogenated alkyl group and R1 and R2s are independently hydrogen or an alkyl group or a trialkylsilyl group having a carbon number of 1-4, and in the formula (VII), R3 is a bulky group.

Abstract: An azo dye represented by formula (1): wherein R1 represents an alkyl group having 1 to 6 carbon atoms; and R2 to R6 each independently represents a hydrogen atom or a substituents, and an ink sheet for heat-sensitive transfer recording, a heat-sensitive transfer recording method, a color toner, an inkjet ink, and a color filter, each utilizes the azo dye.

Abstract: An ink sheet for heat-sensitive transfer recording material comprising an azo dye represented by the following formula (1): wherein R1, R2, R3 and R4 represent a hydrogen atom or substituent; and Het represents a heterocyclic group which may have substituents or a condensed ring.

Abstract: An optically active aziridine compound or amine compound is produced by using a specified Ru(salen)(CO) complex as a catalyst, and subjecting a specified olefin to an asymmetric aziridination or amination with a specified arylsulfonyl azide compound.