国家/地区 中国（2）
IPC部 B（2）
IPC大类 C08（2）
IPC小类 C09D（2）
IPC
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

Wet and corrosion resistant coating is used for positive temperature coefficient (PTC) ceramic heater comprises PTC ceramic heater subjected for spraying treatment, deposition treatment, secondary spray coating and baking sequentially.

CHENG W, CHENG C

High ductility and high temperature resistant composite food packaging film useful for food packaging or food preserving, comprises modified composite film layer which is base modified film layer, maleic anhydride graft polyethylene resin film middle layer and polyethylene outer film layer.

CHEN C