国家/地区 中国（5）
IPC部 B（5）
IPC大类 B29（5）
IPC小类 B29D（5）
IPC B29D099/00（5）
发明人 CHEN K（2） LI H（2）
公开年 2022（5）
申请年 2022（4） 
专利权人

High temperature resistant packer sealing rubber cylinder is useful in oil field, comprises e.g. 100H type tetrapropylene fluorine rubber, 100S type tetrapropylene fluoride rubber, N990 carbon black, N774 carbon black, calcium stearate, and triallylisocyanurate.

YANG Z, LI Y, LUO B, FU W, LV Z, CHEN K, LONG X, CAO X, LI H, REN J

Preparing C-type sealing ring for passage door of main equipment of sodium-cooled reactor comprises extruding material for the temperature-resistant layer and material for the elastic layer, enclosing strip-shaped embryo body in mold cavity, overlapping, closing the mold, and thermal vulcanization.

FENG H, LI N, SUN C, SU Y, CHEN K, FANG K

Preparing magnetically aligned wave-absorbing thermoplastic wire useful in field of domestic, military, medical, and communication, comprises e.g. washing colloidal mixture, removing organic solvent, applying external magnetic field in front of head of twin-screw extruder, pulling wire, and solidify.

YAO Z, HE X, LUO C, LIU Y, ZHOU J

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

High-hardness gasket press forming technique useful for setting rotating machine for driving an object to rotate, comprises e.g. processing stainless steel sheet to obtain gasket blank, adhering gasket blank with composite gasket made of e.g. graphene and diamond particles, pressing, and forming.

WANG Z