国家/地区 中国（14） 美国（4） 世界知识产权组织（4） 加拿大（3）
IPC部 F（16） C（7） B（6）
IPC大类 F16（16） C08（5） B32（4）
B29（3） C09（3）
IPC小类 F16L（16）
IPC B32B027/32（4） F16L057/02（4） F16L058/10（4）
B32B001/08（3） C08K003/04（3） F16L009/12（3）
F16L009/147（3） F16L057/06（3） F16L059/02（3）
B29C048/09（2） B32B015/20（2） B32B027/18（2）
B32B027/34（2） C09D005/08（2） C09D007/62（2）
发明人 WANG L（3） BANERJI A（2） DOBLE C（2）
JIN J（2） LIANG Y（2）
公开年 2022（16）
申请年 2021（16）
专利权人 MARTINREA IN.（2） RIFENG ENTER.（2） RIFENG TECHN.（2）

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

Petroleum pipeline with high-efficiency anti-pressure corrosion resistant function, has reinforcing layer whose inner cavity is fixedly connected with lining sleeve, and comprises graphene coating layer, polyurethane resin layer and glass fiber layer.

LIU Y

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

Oil pipe protecting device of steel grabbing machine, has compression spring whose one end is fixedly connected with protective inner shell whose outer surface is rotatably connected with sealing cover.

LIN S, XU J, XU R

Centrifugal air compressor sealing structure, has limiting plate provided with vent hole, where limiting plate is fixedly installed with strong magnet, and strong magnet is movably installed with air filter plate.

UNANNOUNCED I

Tubular composite structure for renewed pipe structure pair, comprises a sealing layer, one or more axial reinforcement layers, a hoop reinforcement layer, and a protective layer, and each tubular assembly optionally further comprising a sensor array layer.

WEISENBERG K

Polybutylene composite pipe used in hot spring transportation, comprises anti-corrosion outer layer, thermal insulation layer and working inner layer from outside to inside, where working inner layer is made of polybutene material and insulation layer is made of polyethylene foamed plastic.

QIN X, YI Z, WANG L, JIN J, LIANG Y

Preparing high-pressure-resistant pipeline plastic involves preparing modified carbon fiber, preparing modified nano particle, adding graphene oxide into absolute ethyl alcohol, soaking completely graphene oxide, and performing ultrasonic treatment to obtain dispersion liquid of graphene oxide.

ZHOU J

Preparing graphene oxide-epoxy ceramic composite material that is used for preventing corrosion of inner wall of pipeline, involves modifying graphene oxide by nano-zinc oxide, so that carboxyl group on surface of graphene oxide is bonded to hydroxyl group.

SUN T, YAN W, YAN Y

Multifunctional oxygen barrier pipe useful in cold water and/or hot water conveying and preparing floor heating pipe material, comprises first PB layer, outer hot melt adhesive layer, aluminium layer, inner hot melt adhesive layer and second PB layers from outside to inside in turn.

JIN J, WANG L, LIANG Y