国家/地区 中国（2）
IPC部 C（2）
IPC大类 C04（2）
IPC小类 C04B（2）
IPC C04B111/28（2）
发明人
公开年 2022（2）
申请年
专利权人

Long-term high temperature resistant, toughened cementing and sanding cement composite material useful in oil well cementing, comprises cement, alumina, ultrafine high-purity silica sand, additives, toughening materials, water, nano iron oxide and oil well cement admixture.

CHENG G, LI H, PANG X, QIN J

Production of double-machine mixed aerogel-graphite integrated thermal insulation board involves preparing foam substrate, coating thermal insulation coating, drying, and binding decorative materials on surface.

TAN C, WANG S, SONG D