国家/地区 中国（3）
IPC部 B（3）
IPC大类 B29（3）
IPC小类 B29D（3）
IPC C08K003/04（2） F16L009/147（2）
发明人
公开年 2021（3）
申请年 2021（3）
专利权人

Strong corrosion resistance steel belt reinforced spiral corrugated pipe comprises steel belt and outer pipe and inner pipe composing bisphenol A epoxy vinyl resin, phenolic resin, polypropylene, glass fiber, and modified graphene.

PEI S, ZHOU S, XU J, XU H, CHEN X

Oxidation-resistant polyethylene composite pipe comprises core pipe that is provided with aluminum sheet layer provided with outer layer pipe, where core pipe and outer layer pipe are made of polyethylene, chlorinated polyethylene, dibutyltin dilaurate, zinc stearate, graphene, and barium laurate.

LIU J, WANG J, WANG H, WU D

Anti-puncture sheet has high-performance fibers and spring steel wires, comprising highly elastic tensile cracking layer, and hard resin layer provided on top and bottom of high-elasticity tensile cracking layer.

SHI Z