国家/地区 韩国（5）
IPC部 C（5）
IPC大类 C08（5） C09（2）
IPC小类 C08G（5）
IPC C08K003/04（5）
发明人
公开年 2023（4）
申请年 2022（5）
专利权人 PI ADVANCED .（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 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 hydrogel for energy storage device, involves forming pre-gel comprising polymer and metal salt particles, shrinking and dehydrating pre-gel and impregnating shrunk and dehydrated pre-gel with ion solution to cross-link and rehydrate shrunk and dehydrated pre-gel to produce hydrogel.

JI D, KIM J Y, HWAN J D

Two-component urea-bond-containing coating composition used for forming coating film for marking pavement surface, comprises main agent containing diethyl aspartate, acrylate modified amine, and polyaspartic acid ester amine, and curing agent containing aliphatic polyisocyanate.

KIMJAEHAK, KIM H G, LEE D

Composition used for three-dimensional printing e.g. additive manufacturing, comprises particles comprising thermoplastic polymer grafted to carbon nanomaterial, and particles have preset aerated density.

FARRUGIA V M, SRISKANDHA S E, CLARIDGE R, SRISKANDAR S E, EMPARUZIA V, SIBANTIISWARISLISKANDA