国家/地区 中国（3）
IPC部 C（3）
IPC大类 C08（3）
IPC小类 C08J（3） C08K（3） C08L（3）
B29D（2） C09D（2） F16L（2）
IPC C08J007/046（3）
发明人
公开年
申请年 2022（2） 
专利权人

Sealing ring with strong weather resistance and high temperature resistance comprises banburying the raw materials natural rubber, nitrile rubber, modifier, kneading, pouring the heated raw materials, injection molding, vulcanizing, demolding and fine grinding of rough billet.

ZHU J, YANG J, XIAO F

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

Reinforced wear-resistant polyethylene water supply pipe useful for trenchless construction, comprises pipe body including a pressure-resistant layer and compatible layer and compatibility layer arranged inside the pressure-resistant layer.

LIU J, TIAN X, LIU P, JIN R, ZHOU W, ZHANG W