国家/地区 韩国（15）
IPC部 C（15） B（5）
IPC大类 C08（15）
IPC小类 C08G（15） C08J（12） C08K（12）
C08L（11） C01B（4） B32B（2）
IPC C08G073/10（15）
发明人 LEE K N（3） CHOI J Y（2） CHUN J（2）
JEON J（2） JIN J（2） WON D Y（2）
YOU N H（2）
公开年 2023（4） 2021（3） 2017（2）
申请年 2020（3）  2022（3）  2013（2）  2019（2） 
专利权人 PI ADVANCED .（4） KOREA INST S.（2） SKCKOLON PI .（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

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

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

Producing liquid crystalline graphene oxide polyamate composite film, comprises coating the liquid crystal solution containing graphene oxide and polyamic acid in liquid crystal phase, on a substrate, arranging and drying.

YOU N H, RYU J S, YUN L S, JIN J

Producing polyimide aerogel used for three-dimensional model conveniently in various fields i.e. food, comprises e.g. preparing polyamic acid salt by dissolving diamine, dianhydride and tertiary amine-based photocuring agent in solvent.

CHUNG C M, CHOI Y J, CHOI J Y, JIN S W, PARK H J, SEUNGHYOUN L, LEE J S, LEE J, AHN H S, KIM D

Composition for forming composite material, comprises polyaryletherketone copolymer comprising polyetheretherketone containing structural unit and poly(ether diphenyl ether ketone) containing structural unit, and poly(etherimide).

RICH J, ELHIBRI M J, LEACH J, ELHIBRI M

Maleimide resin film used in maleimide resin composition and as adhesive resin film having low dielectric property, comprises maleimide, (meth)acrylate, inorganic particles with respect to whole resin film and curing catalyst.

IGUCHI H, TSUTSUMI Y, KASHIWAGI T, DI J

Producing polyimide powder useful for polyimide molded product, comprises dispersing dianhydride compound, diamine compound, and graphene powder in mixed solvent to prepare dispersion, introducing into reactor, and filtering and drying.

LEE K N, CHUN J, JEON J

Polyimide composite film used for electronic component, comprises core layer comprising polyimide resin and graphene, and skin layer comprising another polyimide resin, and has preset electromagnetic wave shielding rate and tensile strength.

LEE K N, KIM K H, KIM K

Polyimide film for forming graphite sheet for electronic device, is derived from precursor composition comprising polyamic acid, and comprises inorganic filler having sublimation property, and graphene-containing spherical polyimide filler.

KIM K S, CHOI J Y, WON D Y, JIN J, CUI Z, YUAN D