国家/地区 中国（3）
IPC部 B（3）
IPC大类 B29（3） C08（3） F16（3）
IPC小类 C08K（3）
IPC C08K003/04（3）
发明人 LIU J（2）
公开年 2021（3）
申请年 2020（2） 
专利权人 ANHUI GLANT .（2）

Combined pressure-resistant double-wall corrugated pipe has corrugated pipe provided with corrugated grooves, and exhaust pipe passing arc-shaped limiting groove and installed on annular airbag, which is in contact with corrugated groove.

LIU L, JIANG H, ZHANG Z, JIANG J, ZHANG Y

Reinforced wear-resistant polyethylene water supply pipe, includes inner layer prepared from polyethylene resin, graphene functional masterbatch, core layer made of polyethylene graft resin, and outer layer of block copolymer polypropylene.

LIU J, WAN G, WANG J, TENG X, FU Y, LI H

Reinforced wear-resistant PE drainage pipe for trenchless construction, comprises high density polyethylene, linear low density polyethylene, nano graphene, polyaniline modified bentonite and titanate coupling agent.

LIU J, CAO C, JIANG F, ZHANG J, ZHOU M, GU Y, ZHU Q