METHOD FOR SELECTING A SOLVENT FOR A POLYMER AND COMPOSITE CONTAINING THE SELECTED SOLVENT

As a polymer solution (referred to as dope) manufactured by dissolving a polymer in a solvent to cast a film, the present invention relates to a method for selecting a solvent for dope, the polymer solution manufactured by using the same, and a film manufactured by using the same capable of providin...

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Bibliographische Detailangaben
Hauptverfasser:	JEON SEUNGMIN, LEE CHANGQ
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	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
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Beschreibung
Zusammenfassung:	As a polymer solution (referred to as dope) manufactured by dissolving a polymer in a solvent to cast a film, the present invention relates to a method for selecting a solvent for dope, the polymer solution manufactured by using the same, and a film manufactured by using the same capable of providing excellent optical and mechanical properties of the film. In addition, an embodiment of the present invention provides a method for selecting a solvent of a polyamideimide-based or polyimide-based polymer capable of providing the polymer solution for having excellent optical physical properties of the film and providing excellent physical properties as a film for an optical device or a display by improving long-term storage stability of the polymer dope for manufacturing the film. 본 발명은 필름을 캐스팅하기 위하여 중합체를 용매에 용해하여 제조하는 중합체 용액(Dope라 할 수도 있다)으로서, 상기 필름의 광학적 및 기계적 물성을 우수하게 부여할 수 있는 상기 도프용 용매의 선정방법 및 이를 이용하여 제조되는 중합체 용액 및 이를 이용하여 제조되는 필름에 관한 것이다. 또한 본 발명의 일 구현예는 필름의 광학적 물성이 우수하고, 또한 필름을 제조하는 상기 중합체 도프(Dope)의 장기저장 안정성을 개선하여 광학장치 또는 디스플레이용 필름으로서 우수한 물성을 부여하는 상기 중합체 용액을 제공하기 위한 폴리아미드이미드계 또는 폴리이미드계 중합체의 용매선정 방법을 제공하는 것이다.