Abstract: A seat folding system includes a folding seat having a seat plate and a backrest, a folding seat adjustment unit having a seat plate adjustment unit for adjusting a height of the seat plate, a slide adjustment unit for adjusting a position of the seat plate in a forwards and backwards direction, and a backrest folding seat adjustment unit for adjusting an angle of the backrest, and a control unit for controlling the folding seat adjustment unit such that folding is able to start in a reference state in which the folding seat is preset.

Abstract: The present disclosure relates to an air cleaner. The air cleaner includes a main body, a panel configured to be movable with respect to the main body, a power transmission device connected to the panel, a vibration-preventing member connected to the power transmission device and including a vibration-preventing portion in contact with the power transmission device and a slip-preventing portion having a thickness thinner than the vibration-preventing portion, and a driving source connected to the vibration-preventing member.

Abstract: Disclosed are a method for manufacturing a positive temperature coefficient (PTC) device and a system for preventing overheating of a planar heater using the same. The manufacturing of the positive temperature coefficient (PTC) device is performed by mixing one or more polymer resins selected from ethylene butyl acrylate copolymers, ethylene vinyl acetate copolymers and polyethylene oxide, carbon black and an additive to prepare a compounding composition, adhering an electrode to both surfaces of the compounding composition, compressing the resulting electrode structure into a sheet, and irradiating electron beams to the sheet to perform cross-linking. Also, disclosed is a planar heater overheating prevention sensor cable obtained by connecting a plurality of PTC devices in series and adhering the devices to the surface of a planar heater by a predetermined distance.

Abstract: Disclosed are a method for manufacturing a positive temperature coefficient (PTC) device and a system for preventing overheating of a planar heater using the same. The manufacturing of the positive temperature coefficient (PTC) device is performed by mixing one or more polymer resins selected from ethylene butyl acrylate copolymers, ethylene vinyl acetate copolymers and polyethylene oxide, carbon black and an additive to prepare a compounding composition, adhering an electrode to both surfaces of the compounding composition, compressing the resulting electrode structure into a sheet, and irradiating electron beams to the sheet to perform cross-linking. Also, disclosed is a planar heater overheating prevention sensor cable obtained by connecting a plurality of PTC devices in series and adhering the devices to the surface of a planar heater by a predetermined distance.

Abstract: A polymer/liquid crystal dispersion includes a liquid crystal, a surfactant and a water soluble copolymer obtained by polymerizing a hydrophilic monomer with one or more hydrophobic monomers. The concentration of the hydrophobic monomer may be 14 to 25% by weight based on the combined weight of the hydrophobic monomer and the hydrophilic monomer. The hydrophobic monomer may be styrene, 3-(trifluoromethyl)styrene, nonylphenol, methacryloyl chloride, methacrylate, and acrylate. The hydrophilic monomer may be acrylamide, acrylonitrile or acryloyl chloride. Preferably, the hydrophilic monomer is acrylamide or a derivative thereof and the hydrophobic monomer is styrene, methyl methacrylate or vinyl acetate. The liquid crystal may be a nematic liquid crystal formed of an azomethine compound or an azo compound. The water soluble copolymer, the liquid crystal, the surfactant and water may form a liquid crystal/aqueous polymer solution.

Abstract: A polymer liquid crystal emulsion includes a liquid crystal and a water soluble copolymer obtained by polymerizing a hydrophilic monomer with one or more hydrophobic monomers. The concentration of the hydrophobic monomer may be 14 to 25% by weight based on the combined weight of the hydrophobic monomer and the hydrophilic monomer. The hydrophobic monomer may be styrene, methyl methacrylate, vinyl acetate, acrylate or methacrylate. The hydrophilic monomer may be acrylamide, acrylonitrile or acryloylchloride. Preferably, the hydrophilic monomer is acrylamide or a derivative thereof and the hydrophobic monomer is styrene, methyl methacrylate or vinyl acetate. The liquid crystal may be a nematic liquid crystal formed of an azomethine compound or an azo compound. The water soluble copolymer, the liquid crystal and water may form a liquid crystal/aqueous polymer solution. In this case, the concentration of the liquid crystal in the liquid crystal/aqueous polymer solution is in the range of 50 to 70% by weight.

Abstract: A polymer liquid crystal emulsion includes a liquid crystal and a water soluble copolymer obtained by polymerizing a hydrophilic monomer with one or more hydrophobic monomers. The concentration of the hydrophobic monomer may be 14 to 25% by weight based on the combined weight of the hydrophobic monomer and the hydrophilic monomer. The hydrophobic monomer may be styrene, methyl methacrylate, vinyl acetate, acrylate or methacrylate. The hydrophilic monomer may be acrylamide, acrylonitrile or acryloylchloride. Preferably, the hydrophilic monomer is acrylamide or a derivative thereof and the hydrophobic monomer is styrene, methyl methacrylate or vinyl acetate. The liquid crystal may be a nematic liquid crystal formed of an azomethine compound or an azo compound. The water soluble copolymer, the liquid crystal and water may form a liquid crystal/aqueous polymer solution. In this case, the concentration of the liquid crystal in the liquid crystal/aqueous polymer solution is in the range of 50 to 70% by weight.