摘要:
PROBLEM TO BE SOLVED: To provide a molded object obtained from an antifogging polyolefin sheet, wherein the molded object has a coating layer containing an antifogging agent, has a high film strength, and has a high antifogging effect even when the amount of the antifogging agent is small. SOLUTION: The molded object obtained from the antifogging polyolefin sheet is obtained by heat-molding of an antifogging polyolefin sheet obtained by a process for producing the antifogging polyolefin sheet. The process for producing the antifogging polyolefin sheet includes: a sheet-molding step which molds the polyolefin resin sheet in a sheet shape by pressing an welding polyolefin solution with an endless belt and a mirror-surface cooling roll after introducing the polyolefin solution into between the endless belt and the mirror-surface cooling roll rolled by a plurality of cooling rolls and by cooling rapidly; and a coated layer-forming step which forms a coated layer by drying the coating layer after coating a mixed solution which has an antifogging agent and a binder resin in each amount of 10-400 mg/m 2 as a solid amount on at least one side of the polyolefin resin sheet obtained by the sheet molding process. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a device for transporting a molten resin, which is free from the occurrence of wrinkles upon changing from a belt conveyer to a chain conveyer even when the device is constructed with a belt conveyer for receiving a melted resin in a sheet shape pressed out continuously from an upper flow process step and transporting the melted resin to a chain conveyer and a chain conveyer transporting thus received melted resin to the down flow process step. SOLUTION: Tension of a belt 41 of a belt conveyer 40 is constructed in such a way that the belt 41 is not slid to the direction of transporting a melted resin S relative to the outer peripheral parts of rollers 42 and 43 upon operating the belt conveyer 40 without loading, and the belt 41 is constructed in such a way that the belt can be slid to the direction of transporting the melted resin S relative to the outer peripheral parts of the rollers 42 and 43 upon operating the belt conveyer 40 without loading. COPYRIGHT: (C)2009,JPO&INPIT