国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B29（2）
IPC小类 B29C（2）
IPC B32B027/32（2）
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

Root puncture-resistant mildew-resistant waterproof coiled material for planting roof system, includes copper foil layer whose upper and lower surfaces are provided with asphalt coating made of modified asphalt, where upper and lower surfaces of asphalt coating are attached with isolation film.

LU Z, LIANG Z, LIANG B

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