Abstract: A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organinc material. Compounds of the general formula: (1) (wherein X is N(R4) or an oxygen atom; R1 is an n-valent hydrocarbon group; R2 is an hydrogen atom or an alkyl; R3 is a hydrogen atom, an alkyl, an alkoxy or an acyl; R4 is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and ?-rays.

Abstract: A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organinc material. Compounds of the general formula: (1) (wherein X is N(R4) or an oxygen atom; R1 is an n-valent hydrocarbon group; R2 is an hydrogen atom or an alkyl; R3 is a hydrogen atom, an alkyl, an alkoxy or an acyl; R4 is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and ?-rays.

Abstract: A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organic material. Compounds of the general formula: (1) (wherein X is N(R4) or an oxygen atom; R1 is an n-valent hydrocarbon group; R2 is a hydrogen atom or an alkyl; R3 is a hydrogen atom, an alkyl, an alkoxy or an acyl; R4 is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and ?-rays.

Abstract: A polymer compound suitable for use in organic electroluminescent elements; a process for producing the compound; and an organic electroluminescent element employing the compound. The polymer is a sulfo-containing polymer characterized by having a structure formed by introducing sulfo groups into a polymer comprising repeating units represented by the general formula (1): wherein, in the formula, Ar1 and Ar2 each represents a monovalent aromatic group; Y represents a divalent group comprising an aromatic group; and W represents a divalent aromatic group having 4 to 30 carbon atoms.

Abstract: Provided are a resin composition comprising 100 parts by mass of the polymer having an alicyclic structure at least in a part of a repeating structural unit and 0.05 to 5 parts by mass of a hindered amine compound having a carbon atom at a ratio of from 67% by weight to 80% by weight in the molecular structure and having a molecular weight of from 500 to 3500, a novel piperidine derivative having a piperidylaminotriazine skeleton, a molded product such as an optical component obtained by molding the resin composition, and an optical pickup device which employs the optical component.

Abstract: A polymer compound suitable for use in organic electroluminescent elements; a process for producing the compound; and an organic electroluminescent element employing the compound. The polymer is a sulfo-containing polymer characterized by having a structure formed by introducing sulfo groups into a polymer comprising repeating units represented by the general formula (1): wherein, in the formula, Ar1 and Ar2 each represents a monovalent aromatic group; Y represents a divalent group comprising an aromatic group; and W represents a divalent aromatic group having 4 to 30 carbon atoms.

Abstract: A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organic material. Compounds of the general formula: (1) (wherein X is N(R4) or an oxygen atom; R1 is an n-valent hydrocarbon group; R2 is a hydrogen atom or an alkyl; R3 is a hydrogen atom, an alkyl, an alkoxy or an acyl; R4 is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and ?-rays.

Abstract: The present invention relates to a novel diaminodicarboxylic acid represented by general formula (1): (wherein A is an aliphatic group; one of R1 and R2 is a carboxyl group, and the other is an amino group or a carbamoyl group; and one of R3 and R4 is a carboxyl group, and the other is an amino group or a carbamoyl group), a carbamoyl compound which is a synthetic intermediate for the diaminodicarboxylic acid, and a process for producing the diaminodicarboxylic acid. The diaminodicarboxylic acid can be produced by Hofmann reaction of the carbamoyl compound and is a useful compound as a starting material for resins or an additive for resins.

Abstract: A compound represented by the following formula (12) useful as an intermediate for production of drug or agricultural chemical: 1

Abstract: A compound represented by the following formula (12) useful as an intermediate for production of drug or agricultural chemical: (wherein R21 to R25 are each independently a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, a perfluoroalkyl group of 1 to 4 carbon atoms, a cyano group, a nitro group, an amino group, a carboxyl group, a thiol group, an alkylthio group of 1 to 4 carbon atoms or a carbamoyl group) can be produced by reacting a compound represented by the formula (13): (wherein R21 to R25 have the same definitions as given above) with 1,1-cyclopropanedicarboxylic acid. The compound of the formula (12) is useful as a raw material for production of a pyrrolidinone compound useful as an active ingredient of drug.

Abstract: A compound represented by the following formula (12) useful as an intermediate for production of drug or agricultural chemical: (wherein R21 to R25 are each independently a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, a perfluoroalkyl group of 1 to 4 carbon atoms, a cyano group, a nitro group, an amino group, a carboxyl group, a thiol group, an alkylthio group of 1 to 4 carbon atoms or a carbamoyl group) can be produced by reacting a compound represented by the formula (13): (wherein R21 to R25 have the same definitions as given above) with 1,1-cyclopropanedicarboxylic acid. The compound of the formula (12) is useful as a raw material for production of a pyrrolidinone compound useful as an active ingredient of drug.

Abstract: Since a compound represented by general formula (1), its pharmaceutically acceptable salt and a hydrate of the pharmaceutically acceptable salt have high antipsychotic activity, they may be used as an active ingredient for preparation of an antipsychotic. ##STR1## Also provided are an optical resolution method of the above compound and an intermediate for preparation of the compound.