POLYIMIDE FILM HAVING MOISTURE RESISTANCE AND LOW WATER-ABSORPTION PROPERTIES

• Main Authors: KIM, Dongyoun, AHN, Kyungil, SHIM, Jaehyun, LEE, Hoyong, KIM, Wonkyum
• Format: Patent
• Language: English; French; Korean
• Published: 23.09.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The present invention relates to a polyimide film obtained by copolymerizing at least one type of diamine and at least one type of acid dianhydride, and, more specifically to a polyimide film having superb moisture resistance and low water-absorption properties, as well as excellent transparency, to thus be usable as a cover window of a display. La présente invention concerne un film de polyimide obtenu par copolymérisation d'au moins un type de diamine et d'au moins un type de dianhydride d'acide, et, plus spécifiquement, un film de polyimide ayant une excellente résistance à l'humidité et de faibles propriétés d'absorption d'eau, ainsi qu'une excellente transparence, pour ainsi être utilisable en tant que protège-vitre d'un dispositif d'affichage. 본 발명은 적어도 1종의 디아민; 및 적어도 1종의 산이무수물을 포함하여 공중합된 폴리이미드 필름으로서, 보다 상세하게는 우수한 내흡습 및 흡수 특성을 확보하면서, 투명성이 우수하여 디스플레이의 커버윈도우로 사용될 수 있는 폴리이미드 필름에 관한 것이다.