国家/地区 中国（2）
IPC部 B（3）
IPC大类 B28（3）
IPC小类 C04B（3）
IPC C04B028/14（3）
发明人
公开年 2022（3）
申请年 2022（2） 
专利权人

Gypsum-based hydrophobic composite material with self-cleaning function used in building material, comprises hemihydrate gypsum, graphene solution, mineral admixture, hydrophobic modifier, silane coupling agent, and water.

WANG L, LIU Q, LIN H, DONG B, GUO Y, ZHI Z

Manufacturing molded product using coffee grounds by drying coffee grounds, sieving coffee grounds that were dried, mixing sieved coffee grounds with gypsum mixture, inserting prepared mixture into mold, and molding it.

KIM S, SEAN K

Concrete drainage pipe comprises regenerated aggregate, fly ash, aluminum powder and fine sand with preset fineness, fine coal gangue, lime, gypsum, diatomaceous earth, cement, nano-silica, graphene oxide, redispersible latex powder, crushed stone, plasticizer, water-reducing agent and water.

HE Y