国家/地区 中国（3）
IPC部 B（2） C（2）
IPC大类
IPC小类
IPC
发明人
公开年 2023（3）
申请年 2022（2） 
专利权人 UNIV CHENGDU TECHNOLOGY（3）

Titanium-doped multilayer copper-based composite material for use in e.g. aerospace field, has titanium-titanium doped composite layer arranged between reinforced-phase composite layer or between reinforced-stage composite layer and copper base surface layer.

ZHU M, DING Y, JIANG X, TAN H, QI F, SHAO Z

Preparing negatively charged graphene oxide-based drilling fluid loss reducer, comprises dispersing graphene oxide in solvent, adding organic amine, negatively charged monomer, 4,4'-azobis(4-cyanovaleric acid) as initiator and amide condensing agent and carrying out polymerization reaction.

LI H, YI S, DONG H

Synthesizing 1,3-butadiynes by heterogeneous catalysis comprises adding aryl-substituted alkynes, oxygen and nitrogen-doped graphene-supported copper catalyst into N,N-dimethylformamide solution, stirring and reacting.

GE Y, YANG D, MA X