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公开(公告)号：US20230398727A1
公开(公告)日：2023-12-14
申请号：US17837813
申请日：2022-06-10
IPC分类号： B29C48/10 , B29C48/00 , B29C48/275
CPC分类号： B29C48/10 , B29C48/277 , B29C48/0018
摘要： A method of manufacturing a film includes forming a blend containing a renewable content starch, a renewable content mineral, and polyethylene, operating a mass flow hopper to maintain a consistent mass flow rate of the blend to a feed throat of an extruder, and operating the extruder with a screw speed and melt temperature based on the amount by weight of the starch and mineral within the blend. The melt is passed through a screen pack with a mesh rating based on the amount by weight of the starch and mineral within the blend, is passed through a die, and is cooled into a film. The film is nipped to a gauge such that the film can be formed into a bag.
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公开(公告)号：US12070885B2
公开(公告)日：2024-08-27
申请号：US17837813
申请日：2022-06-10
IPC分类号： B29C48/10 , B29C48/00 , B29C48/275
CPC分类号： B29C48/10 , B29C48/0018 , B29C48/277
摘要： A method of manufacturing a film includes forming a blend containing a renewable content starch, a renewable content mineral, and polyethylene, operating a mass flow hopper to maintain a consistent mass flow rate of the blend to a feed throat of an extruder, and operating the extruder with a screw speed and melt temperature based on the amount by weight of the starch and mineral within the blend. The melt is passed through a screen pack with a mesh rating based on the amount by weight of the starch and mineral within the blend, is passed through a die, and is cooled into a film. The film is nipped to a gauge such that the film can be formed into a bag.
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