国家/地区 中国（13） 韩国（2） 世界知识产权组织（2）
IPC部 C（16）
IPC大类 C08（16）
IPC小类 C08K（16）
IPC C08K003/04（11） F16L009/12（7） C08L023/06（6）
B32B001/08（4） C08K009/02（4） C08K009/04（4）
B29D023/00（3） B32B027/18（3） B32B027/32（3）
C08K003/22（3） C08K003/26（3） C08K007/14（3）
C08K009/10（3） C08L023/08（3） F16L058/10（3）
发明人 HUO F（2） LIANG Y（2） SONG Q（2）
WANG L（2）
公开年 2022（16）
申请年 2022（9）  2021（5）  2020（2） 
专利权人 LINHAI WEIXI.（2）

Double insulation type self-limiting temperature heating cable used in electric heating element, comprises two parallel metal wire cores whose outside is covered with PTC material layer, where PTC material layer is covered with inner insulating layer and flame-retardant outer insulating layer.

JI C

Rubber tube useful for underground hydraulic transmission, comprises e.g. inner rubber layer set inside composite layer and outer rubber layer set outside composite layer, where metal weaving layer is compounded on middle rubber layer, and outer rubber layer is compounded on metal weaving layer.

WANG Y, HU X, HAN W, JIA X, LIU G, LI X

Fiber reinforced plastic electro-fusion pipe with independent control of mechanical performance and electrical performance comprises electric melting pipe main body embedded with resistance wire, and provided with two binding posts respectively connected to two ends of resistance wire.

HU Z, ZHENG J, SHI J, YAO R

Modified core-shell masterbatch toughened polypropylene random copolymer (PPR) pipe comprises tube body comprising outer layer, middle layer and inner layer, where outer layer comprises PPR resin, modified nano-calcium carbonate and dispersant.

MO Y, LU Z, LI Y, LI H, SHI K, LIANG Y, LAN J

High-strength temperature medium conveying pipeline comprises e.g. rigid reinforcing layer, polyethylene of raised temperature resistance modified foam layer, anisotropic plane high thermal conductivity graphene layer and inner core pipe in turn from outside to inside.

WANG J, SONG Q, HUO F, CHU Z

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

High thermal conductivity radiation cross-linked polyethylene material useful in preparing pipe, comprises polyethylene, thermally conductive fillers, fluorine-containing organic compounds, impact modifiers, and additives.

WANG L, LIU Z, ZHANG H

Processing cold-resistant water pipe useful in e.g. polyvinyl chloride water supply pipe, comprises e.g. ultrasonically dispersing graphene oxide and deionized water, centrifuging, reacting, stirring polypropylene, ethylene-octene copolymer, high-density polyethylene, and performing melt extrusion.

LU X, GU N

Diffuser mechanism of non-welding structure useful in seawater discharge channel comprises pipe component closely supports sleeve on spool of hull, and diffusion component supporting wing pieces inside sleeve.

SEOK N

Fluid transport tube for transporting different grades of fuel and their vapor such as brake fluids, transmission oil and coolants during vehicle operation, ha layer having polymer or copolymer which is formed into circular cross-sectional profile, and graphene material in layer.

DOBLE C, HAHN R, BANERJI A