POLYIMIDE FILM HAVING EXCELLENT WEATHER RESISTANCE

The present invention relates to a polyimide film copolymerized by including at least one diamine, and at least one acid dianhydride. More specifically, the present invention relates to a polyimide film which has excellent transparency and minimizes color change due to external UV exposure, so that...

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Bibliographische Detailangaben
Hauptverfasser:	AHN KYUNGIL, LEE HOYONG, KIM WONKYUM, SHIM JAEHYUN, KIM DONGYOUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a polyimide film copolymerized by including at least one diamine, and at least one acid dianhydride. More specifically, the present invention relates to a polyimide film which has excellent transparency and minimizes color change due to external UV exposure, so that it can be applied as a cover window through excellent weather resistance and excellent visibility. 본 발명은 적어도 1종의 디아민; 및 적어도 1종의 산이무수물을 포함하여 공중합된 폴리이미드 필름으로서, 보다 상세하게는 투명성이 우수하면서, 외부 자외선 노출에 의한 색변화가 최소화되어 뛰어난 내후성과 우수한 시인성을 통해 커버 윈도우로 적용될 수 있는 폴리이미드 필름에 관한 것이다.