国家/地区 中国（4）
IPC部 B（4） C（4）
IPC大类 B29（4） C08（4） B32（2）
IPC小类 B29D（4）
IPC C08L067/04（4）
发明人
公开年 2022（4）
申请年 2022（4）
专利权人

Preparing medical packaging film with high barrier property comprises e.g. adding acetic anhydride and modified titanium dioxide-graphene oxide composite, preparing modified titanium dioxide-carboxymethyl cellulose composite, and preparing polyhydroxyl butyric acid valeric acid copolyester film.

ZHOU S, YUAN X, ZHANG C

Multi-layer high-barrier high-strength biodegradable film comprises e.g. polybutylene adipate terephthalate pellets, polymer L-lactic acid pellets, polymer D-lactic acid pellets, modified gas barrier agent polybutylene adipate terephthalate pellets, polymer L-lactic acid pellets and chain extender.

CAO Z, YANG Z, GE Z, HUANG Q, HE Y, LI Y, LIU Y, YANG J, SHEN B

Straw material of high mechanical strength and toughness, used in hot beverage industry, comprises preset amounts of polylactic acid, auxiliary material containing nucleating agent, composite toughening agent and slipping agent, composite heat stabilizer, antibacterial agent and anti-aging agent.

HE X

Preparing completely biodegradable wrapping film used for packaging goods e.g. electronics, comprises uniformly mixing materials required for supporting layer and adhesive layer, extruding and granulating, and passing supporting and adhesive modified material layers by three-layer co-extrusion.

ZHEN W, ZHENG H