国家/地区 中国（36） 世界知识产权组织（4） 韩国（3） 美国（2）
IPC部 C（41）
IPC大类 C08（41）
IPC小类 C08G（41）
IPC C08G073/10（41）
发明人 WANG J（3） WANG Y（3） ZHANG Y（3）
ZHOU Z（3） CAO H（2） CHEN W（2）
JIA N（2） LI G（2） LIU B（2）
LIU G（2） SU C（2） WANG Q（2）
WANG T（2） WANG X（2） XU Z（2）
公开年 2022（29） 2023（12）
申请年 2022（41）
专利权人 PI ADVANCED .（3） BEIJING YUCH.（2） DONGGUAN HON.（2） GUANGDONG HO.（2）
LANZHOU CHEM.（2） ZHEJIANG ZHO.（2）

Producing polyimide powder used in display, automobile, medical, battery, and aerospace, involves preparing polyamic acid solution, preparing polyimide mixed solution by heating polyamic acid solution, and filtering and drying precipitate present in mixed solution to obtain polyimide powder.

LEE H S, YANG M S, LEE I S, LEE H, YANG M

Preparing polyimide-based shape-memory composite aerogel by carrying out polycondensation reaction of diamine monomer and dianhydride monomer in N-methylpyrrolidone, placing obtained polyamic acid gel in water, freeze-drying, and dispersing polyamic acid filaments and graphene oxide in water.

LI L, GUO M, LIU T

Polyimide film is obtained by imidization reaction of polyamic acid containing quinoline and beta-picoline as imidation catalyst and acetic anhydride as dehydrating agent.

JUNG H, WON D, WON D Y

High wear-resistant type polyimide enamel wire coating used in e.g. electronic electric, comprises fluorine-containing polyimide, nano silicon dioxide, polydimethylsiloxane, modified graphene, and nano-calcium carbonate.

YE H, WANG S, ZHANG F, ZHANG B

Polyimide film used in multilayer film and flexible metal clad laminate, is obtained by imidizing polyamic acid solution containing dianhydride component including e.g. biphenyltetracarboxylic dianhydride, and diamine component including e.g. m-tolidine, and comprises graphene nanoplatelets.

JEON J, YEO M, BACK S, LEE K, CHUN J, BAEK S, LEE K N

Preparing high temperature resistant thermosetting supramolecular shape memory polyimide used in aerospace, has e.g. mixing graphene oxide, organic solvent, diamine and dianhydride and polycondensing, subjecting borate-terminated polyamic acid solution to solvent removal and thermal imidization.

WANG T, ZHANG Y, WANG X, WANG Y, ZHANG X, ZHANG N, WANG Q, YANG Z

Preparing polyimide film comprises e.g. mixing film polyimides, thermally conductive fillers and solvents, uniformly dispersing to obtain mixed dispersion, and coating the dispersion on substrate, and synthesizing by polymerization.

NIU S, SUN X

Preparing graphene-doped polyimide powder used e.g. in lost foam casting, comprises e.g. mixing and reacting graphene with organic solvent, diamine and dianhydride by in-situ polymerization, adding e.g. catalyst, performing chemical imidization of polyamic acid, and grinding polyimide product.

MIN Y, QIU W, LUO X, LIU Y

Bonding agent useful in electrode pole piece for a secondary battery, comprises e.g. polyamide-imide, carboxylated graphite carbon fibers, metal fibers, and conductive carbon particles.

QIAN C, ZHOU Z, YUE M

Polyimide paint useful for high heat-resistant enameled wire for electronic appliances, household appliances and instrument equipment, comprises polyamic acid solution obtained by polycondensation of aromatic dianhydride, aromatic diamine and fluorinated amino graphene.

XU Z, LIU G, ZHU C, CAO H, ZHANG Q