Patent ID: 6044629
Filing Date: 2000-04-04
Classification: B29C,B29K,B29L,B60R,Y10T

Abstract:
A method of manufacturing a resin bag comprising:disposing a first resin sheet in a cavity of a mold,overlaying a heat-resisting sheet smaller than said first resin sheet on said first resin sheet to expose a periphery of said first resin sheet along an outer periphery of said heat-resisting sheet,injecting a molten resin into the cavity in a state where the mold is opened, andclosing the mold while pressing and expanding the injected resin in a molten state such that the injected resin covers said heat-resisting sheet and the exposed periphery of said first resin sheet, thereby molding said second resin sheet and bonding a periphery of said second resin sheet with the periphery of said first resin sheet at a same time.