Abstract:
PROBLEM TO BE SOLVED: To provide an insulating material with a new structure, which has advantage in insulation, rigidity, and heat resistance, and an insulating layer composition comprising the same, and a substrate using the insulating layer composition.SOLUTION: The insulating material includes a structure in which polysilsesquioxane (POSS) is combined with a main chain of a soluble liquid crystal thermosetting oligomer. The soluble liquid crystal thermosetting oligomer is a soluble liquid crystal thermosetting polymer with a low coefficient of thermal expansion used in an insulating layer of a printed circuit board.
Abstract:
PROBLEM TO BE SOLVED: To provide a laminate having a new function that is never obtained by a substrate alone.SOLUTION: The laminate 1A is provided with a substrate 2, and a layer 8 provided on the substrate 2 and comprising fiber filler (fiber pieces) and resin. The layer 8 is a paper-making sheet obtained by paper-making the fiber filler and the resin.
Abstract:
A molded motor including a stator including a housing formed by integrally molding an armature winding and a printed circuit board with resin containing a fibrous reinforcing material and filler; a magnet rotor rotatably disposed to face the stator; and a plurality of lead wires led out to outside. The printed circuit board is provided with a plurality of lands connecting the lead wires by soldering, and a round hole between the plurality of lands filled with the resin, and the reinforcing material is oriented in a board thickness direction of the printed circuit board.
Abstract:
PROBLEM TO BE SOLVED: To provide a sheet for flexible printed wiring board reinforcement which has a thermal expansion coefficient close to the coefficient of a thermosetting polyimide film used as a substrate film for a flexible printed wiring board and metal foil such as copper foil laminated on the thermosetting polyimide film, is sufficiently reduced in thickness variation, superior in reflow heat resistance, superior in blister resistance, and can be manufactured at a low cost, and to provide a flexible printed wiring board using the same. SOLUTION: A sheet 2 for reinforcement for reinforcing a flexible printed wiring board 1 is used for flexible printed wiring board reinforcement which is obtained by extrusion-molding and biaxial stretching a composition containing a crystalline thermoplastic resin in a softening start temperature Tg of 120°C or higher and a fibrous inorganic filler, and has a thermal expansion rate of 5 to 30 ppm/K in either of MD and TD directions. The sheet for reinforcement is stuck on a predetermined place of the flexible printed wiring board to form a reinforcing layer of the flexible printed wiring board. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
A norbornene-based resin molded article obtained by bulk polymerizing a norbornene-based monomer in a mold; wherein said norbornene-based resin molded article is characterized by comprising a hybrid filler obtained by high-speed mixing the two or more kinds of fillers in dry method. Preferably, said hybrid filler is obtained by high-speed mixing, at least a fibrous filler having 5 to 100 aspect ratio and a particulate filler having 1 to 2 aspect ratio, in dry method. The present invention provides the norbornene-based resin molded article superior in rigidity and dimensional stability; and the method of production thereof.