国家/地区 中国（27） 韩国（4） 世界知识产权组织（3） 巴西（2） 欧洲专利局（EPO）（2） 印度（2） 美国（2）
IPC部 C（32）
IPC大类 C09（32）
IPC小类 C09D（32）
IPC C09D005/08（15） C09D163/00（12） C09D007/61（11）
C09D007/62（9） F16L058/10（7） C08K003/04（5）
C09D007/63（4） C09D183/04（4） F16L057/06（4）
B05D003/04（3） B29D023/00（3） C08L023/06（3）
C09D001/00（3） C09D123/06（3） C09D175/04（3）
发明人 LIU J（2） LIU Z（2） WANG L（2）
WANG W（2） ZHANG B（2）
公开年 2021（9） 2022（7） 2018（4） 2020（3） 2013（2） 2017（2） 2019（2） 2023（2）
申请年 2020（8）  2021（8）  2022（4）  2017（3）  2019（3）  2013（2）  2016（2） 
专利权人 ANHUI GLANT .（2） SHANGHAI YIL.（2）

Preparing coating for screw thread, comprises e.g. providing workpieces with screw thread, pretreating screw thread part of workpieces with screw thread; sandblasting workpiece with screw thread after pretreatment; and preheating workpiece with screw thread after sandblasting.

SUN J, WANG Y, WANG L, LI R, SONG X, LIU X

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU 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

Non-asbestos organic brake friction material used for brake of industrial machines has graphene and functionalized graphenes as brake friction material, straight or modified phenolic resin as binder, fibers, abrasives, modifier and fillers.

VENKATESH S, MURUGAPOOPATHIRAJA K

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

Preparing pipe material comprises cleaning mineral-inorganic composite materials, grinding, melting, casting and forming in combination with pipe mold by means of centrifugal casting, demolding and cooling, heating and densifying, and coating anti-corrosion coating.

WANG P

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

Composite aluminum pipe with G-shaped pipe comprises a steel pipe and an aluminum pipe combined by cold drawing, and a fin connected with aluminum pipe by a groove outside aluminum pipe and a coating layer provided at outer part of G-shaped pipe.

LU Y

Inner wall wear-resistant pipe material has inner wall pipe material comprising inner wall pipe main body and inner wall pipe ear-resistant coating, where inner wall pipe main body and inner wall wear-resistant pipe coating are arranged from outside to inside.

DAI L

Polymeric material mixture used for forming article e.g. pipe, channel and conduit for device, comprises fluorine-containing polymer, siloxane polymer, and two polymer processing additives having different chemistries.

VALENCIA A, SPRADLING C M, LUKUBIRA S, CHO S K, FAN F, CHUNG H T,