国家/地区 中国（4）
IPC部 B（4）
IPC大类 B29（4） C08（4） B32（2）
F16（2）
IPC小类 B29D（4）
IPC B29D023/00（4）
发明人 LIU J（4）
公开年 2021（4）
申请年 2020（3） 
专利权人 ANHUI GLANT .（3）

Transparent unplasticized polyvinyl chloride pipe material comprises polyvinyl chloride, crosslinking agent, filler, stabilizer, heat-resistant filler, strengthening agent, and compatibilizer.

LIU J, JIANG F, DAI Y

Enhanced wear-resistant polyethylene drainage pipe, has inner layer having polyethylene resin and graphene reinforced masterbatch, polyethylene graft resin core layer, and polyethylene graft resin outer layer set sequentially.

LIU J, WAN G, TIAN X, LIU W, MEI L, ZHOU W, FU Y

Preparing trenchless construction reinforced wear-resistant polyethylene gas pipe, comprises e.g. extruding block copolymer polypropylene, graphene black masterbatch, polyethylene resin and polyethylene graft resin, cooling, and shaping.

LIU J, FU Y, MEI L, TENG X, LIU W, WAN G, TIAN X

Preparing organic rigid reinforced and toughened alloy pipe for underground use, involves weighing high-density polyethylene, linear low-density polyethylene, and chlorinated polyethylene.

LIU J, HOU X, LIU W, FU Y, PAN X, MEI L, TENG X