国家/地区 中国（2）
IPC部 C（2）
IPC大类 C07（2）
IPC小类 C07D（2）
IPC
发明人 FAN X（2）
公开年 2023（2）
申请年 2022（2）
专利权人

Preparing a catalyst useful for producing 3,3',4,4'-biphenyltetracarboxylic dianhydride, comprises dispersing graphene oxide, reducing agent and palladium salt in water, heating, washing and drying.

DU J, WU J, HE H, FAN X, ZHANG G, ZHANG F, LI Y

Preparing modified graphene ultraviolet absorbing agent, comprises dissolving cyanuric chloride in tetrahydrofuran, reacting with anhydrous aluminum chloride and resorcinol, adding chlorobenzene solvent, and reacting with epoxy chloropropane, potassium carbonate and dimethylformamide.

RAN M, FU X, ZHAO L, HUANG Z, XU W, FAN X