国家/地区 中国（3）
IPC部 C（3）
IPC大类 C07（3）
IPC小类 C07D（3）
IPC C07D235/04（2） C08G073/06（2） C08K003/04（2）
C08K007/06（2） C08K007/14（2）
发明人 WANG Y（3）
公开年 2022（2）
申请年 2021（3） 
专利权人 AORUILONG NE.（2） HT MATERIALS.（2） WANG Y（2）

Pod-type degradable temporary plugging ball useful in temporary plugging treatment of oil and gas wells in fracturing system, comprises degradable outer shell (comprising e.g. polymerized product of glycolide, lactide, polybutylene succinate prepolymer) and inner core.

LI H, ZHANG Y, SHANG L, HUANG B, LIU J, WANG Y, YANG X, JIANG Q

Semicrystalline poly(aryl ether ketone) copolymer compositions are used in high pressure and high temperature environment, comprises copolymer having two separate recurring units, first recurring unit and second recurring unit.

WANG Y

Polymeric composition used in article of manufacture, comprises copolymer with recurring unit containing 1-methyl-3-(4-(4-methyl-benzoyl)-phenyl)-1,3-dihydro-benzoimidazol-2-one having compound and recurring unit containing (4-(4-hydroxy-phenoxy)-phenyl)-phenyl-methanone having compound.

WANG Y