国家/地区 中国（2）
IPC部 B（2）
IPC大类 B65（2）
IPC小类 B65D（2）
IPC B65D065/46（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Preparing film used as antibacterial packing material or slow-release drug-carrying material by adding carboxymethyl chitosan and graphene oxide solution to triphosphoric acid, adding gelatin solution, adding into plate and drying film.

ZHAO Y, LI Y, LI F, XIE D, LI C

Degradable electronic packaging plastic tray comprises bottom of disc body is provided with two lower convex portions integrally formed with disc body, two of lower convex portions with concave pits connected with inner cavity of disc body, and disc body is provided with needle air holes.

WU F