Abstract: In a vacuum thermal insulating material having a core material enclosed in a gas barrier container whose inside is made to be a decompressed state, the core material has a lamination structure in which a plurality of sheet-shaped long fiber organic fibrous assemblies are continuously wound up from an inner periphery to an outer periphery. Then, a plurality of sheet-shaped organic fibrous assemblies are arranged in parallel and sheet-shaped multiple organic fibrous assemblies having joint sections are formed. The joint sections are made not to overlap with the upper and lower of joint sections.

Abstract: In a vacuum thermal insulating material having a core material enclosed in a gas barrier container whose inside is made to be a decompressed state, the core material has a lamination structure in which a plurality of sheet-shaped long fiber organic fibrous assemblies are continuously wound up from an inner periphery to an outer periphery. Then, a plurality of sheet-shaped organic fibrous assemblies are arranged in parallel and sheet-shaped multiple organic fibrous assemblies having joint sections are formed. The joint sections are made not to overlap with the upper and lower of joint sections.

Abstract: A plastic magnet precursor which can be supplied in molding a plastic magnet with a constant composition without requiring kneading in which a resin is melted and sheared. Through injection molding using the precursor, a plastic magnet having little deterioration of magnetic properties and a small variation in quality is obtained. The plastic magnet precursor according to the present invention includes an Nd—Fe—B isotropic magnet powder and a ferrite anisotropic magnet powder subjected to coating with a titanate coupling agent, and a thermoplastic resin powder adhered around the magnet powder.

Abstract: The present invention provides a plastic magnet precursor which can be supplied to a step of molding a plastic magnet at a constant composition without requiring a kneading step in which a resin is melted and sheared. Through injection molding using the precursor, a plastic magnet having little deterioration of magnetic properties and a small variation in quality is obtained. The plastic magnet precursor according to the present invention includes an Nd—Fe—B isotropic magnet powder (1) and a ferrite anisotropic magnet powder subjected to a coating treatment with a titanate coupling agent (4), and a thermoplastic resin powder (2) is adhered around the magnet powder (1) to form a powder shape.