国家/地区 中国（4）
IPC部 C（4）
IPC大类 C08（4）
IPC小类 C08K（4） C08L（4） B60C（2）
IPC C08L009/00（4）
发明人 ZHANG C（4）
公开年 2021（2）
申请年 2021（3） 
专利权人 QINGDAO DOUB.（2）

Rubber composition useful in tread of truck radial tire comprises natural rubber, butadiene rubber, gel graphene and cracked carbon black.

GAO X, LIU L, ZHANG J, ZHANG C, WANG P

Corrosion-resistant lining of rotor pump has inner lining provided with several through-holes and staggered circular structures in which staggered portions are communicated with inner side of circular structures, outer lining, and mounting bracket.

ZHANG C, YANG Z, WEI C

Resin composition used to form dielectric substrate layer and prepreg used to form printed circuit board, comprises polymeric based material and fillers comprising hollow fillers comprising hollow filler, and material of hollow filler is silicon dioxide.

CHANG C, WU Y, ZHANG C

Modified graphene oxide composite containing tread rubber material contains base rubber, highly dispersed silica, silane coupling agent, carbon black, plasticizer, vulcanization accelerator, common sulfur and scorch retarder.

SHAN P, LI Y, QI S, ZHANG J, LIU J, ZHANG C