国家/地区
IPC部 C（2）
IPC大类 C08（2）
IPC小类 C08J（2）
IPC C08K003/22（2）
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

Preparing polymer-sand nanocomposite lost circulation material for forming barrier to overcome lost circulation in hydrocarbon wellbore, involves combining cross-linker solution and sand particles; combining hydrogel polymer, organic cross-linker and salt; and combining polymer hydrogel.

KRISHNAN M R, ALSHARAEH E, ALMOHSIN A

Inner filled heat-insulating aluminum alloy profile useful in aviation, aerospace, automobile, machinery manufacturing, ship, construction, and decoration, comprises first aluminum profile and second aluminum profile that cooperate with each other.

SHAO L, NI H, QIU M, TIAN Y, XU Y, LU J, CHEN M, ZHOU X, QIAO G, QIAO T