国家/地区 中国（3）
IPC部 B（4）
IPC大类 B32（4）
IPC小类 B32B（4） C08K（4） C08L（4）
F16L（2） F24D（2）
IPC B32B001/08（4）
发明人
公开年 2022（4）
申请年 2022（2） 
专利权人

Anti-scale layer used in preparing heat-resistant polyethylene (PE-RT) floor heating pipe, comprises PE-RT, organic silicone masterbatch, nano-silicon dioxide and modified-graphene oxide prepared by modifying graphene oxide with surface modifier.

OU J, CHEN S, CHENG X, QIN X, LV A

Weather-resistant drainage pipeline with multilayer structure, comprises an inner layer, an intermediate layer and an outer layer, where the intermediate layer pipe comprises PVC resin, calcium carbonate powder, calcium-zinc heat stabilizer, solid plasticizer, processing aid and toughening modifier.

HUO F, CHEN H, SONG Q, FENG J

Long-term oxygen blocking floor heating pipe with far-infrared radiation function comprises ethylene vinyl alcohol resin, graphene, seaweed carbon, ceramic powder, silica, maleic anhydride grafted polyethylene and heat-resistant polyethylene.

JIN T, LEI G, PENG Y

High thermal conductivity and low gas permeability fluororesin tube useful for heat exchanger comprises fluororesin, thermally conductive flat filler and filler in form of nano-sized thermally conductive fibers.

CHOI J H