国家/地区 中国（7）
IPC部 B（7）
IPC大类 B32（7）
IPC小类 B32B（7） C08K（6） C08L（6）
F16L（3） F24D（3）
IPC B32B027/30（7）
发明人
公开年 2022（3） 2021（2）
申请年 2020（2）  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

Preparing trenchless construction reinforced wear-resistant polyethylene gas pipe, comprises e.g. extruding block copolymer polypropylene, graphene black masterbatch, polyethylene resin and polyethylene graft resin, cooling, and shaping.

LIU J, FU Y, MEI L, TENG X, LIU W, WAN G, TIAN X

Multi-layer composite pipe with high thermal conductivity and high heat resistance, comprises inner layer, middle layer close to the outside of inner layer, and outer layer close to outside of middle layer.

ZHANG B, JIANG X, KONG X, LIANG J

Oxygen-barrier floor heating pipe comprises an inner layer (of modified graphene oxide, fluoropolymer and polymer matrix), an outer layer (of e.g. polymer matrix), an adhesive layer (of e.g. hot melt adhesive) and an oxygen-barrier layer.

WANG J, GAO Y, XIE W

Thermal radiation film for e.g. electronic devices comprises heat-transfer layer formed by uniformly dispersed graphene microparticles and carbon nanotube.

KAGAWA S, SEIJI K