国家/地区 中国（2）
IPC部 B（2）
IPC大类 B32（2） C08（2）
IPC小类 B32B（2）
IPC B32B027/36（2）
发明人
公开年
申请年 2022（2）
专利权人

Three-layer composite biodegradable film with sustained release function useful in agricultural mulching film field, comprises three-layer structure consisting of slow-release films and degradable films alternately, where degradable film is middle layer.

SUN J, GU X, ZHANG S, CHEN J, LI H

Preparing degradable graphene box used in field of food packaging comprises dissolving copper sulfate in deionized water, dissolving oxide graphene, mixing oxidized graphene/copper composite anti-bacterial agent and polylactic acid, mixing starch, polylactic acid and auxiliary agent, and extruding.

LIANG D, ZHANG H, PAN D, YU Z