国家/地区 中国（22） 韩国（2） 世界知识产权组织（2）
IPC部 C（25） B（3） H（2）
IPC大类 C08（25） C01（6） B32（2）
H01（2）
IPC小类 C08G（25）
IPC C08J005/18（25）
发明人 JIN H（2） LI G（2） LIU J（2）
SU C（2）
公开年 2022（18） 2023（7）
申请年 2022（25）
专利权人 GUANGDONG HO.（2） PI ADVANCED .（2）

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

Preparing liquid crystal elastomer flexible device useful in field of wear-resistant device, micro-electro-mechanical system, and soft robot, comprises e.g. partially overlapping at least two self-healing liquid crystal elastomer, performing ultrasonic welding on overlapped portion under pressure.

LI M, ZHENG X, JI H

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 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

Preparation of oriented heat conducting sheet used in semiconductor heat dissipating device, involves placing fluid composition in orientation molding device having sleeve barrel, applying circumferential shear force, heat-curing formed multilayer aggregate, and slicing oriented composition block.

REN Z, WANG H, GU Z

Preparation of multi-layer film material used for battery applications, involves dispersing two-dimensional material in solvent, filtering, adding film material dispersion of two-dimensional material layer adjacent film layer on formed material layer, drying and stripping.

CHEN Y, HUANG X, WANG Y, QUAN B

Polycaprolactone doped with caprolactam, used for preparation of plastic bags and lunch boxes, is obtained by copolymerization of specific amounts of caprolactam and caprolactone, where Polycaprolactone has preset polymerization temperature, number average molecular weight and crystallinity.

WANG J, LIU J, HE W

Preparing boron-doped fluorinated polyimide film used in supercapacitor, involves obtaining polyimide by weighing certain amount of diamine, and four organic solvent and adding into mouth flask, stirring at normal temperature to diamine to dissolve, and weighing certain mass of dianhydride.

LI X

Preparing degradable polybutylene adipate terephthalate useful in preparing film products, comprises esterifying terephthalic acid, butanediol, catalyst and stabilizer with zinc oxide-graphene and esterifying adipic acid, butanediol, catalyst, and stabilizer and esterifying obtained prepolymers.

LIU W, RAO J

High barrier graphene composite polyimide film useful in mobile phone electronic product, chemical medical device, other fields, photoelectron and aviation field, comprises three-layer structure sequentially from top to bottom comprising polyimide film layer, graphene layer and polyimide film layer.

HUANG R, PAN D