MANUFACTURING METHOD OF POROUS POLYIMIDE FILM FOR FLEXIBLE METAL-CLAD LAMINATE AND POROUS POLYIMIDE FILM USING THE SAME

The present invention relates to a method for manufacturing a porous polyimide film for a flexible metal-clad laminate to improve dielectric properties, and a porous polyimide film manufactured thereby. According to one aspect of the present invention, the method comprises the steps of: adding an ac...

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Bibliographische Detailangaben
Hauptverfasser:	LEE RA MI, KIM DAE NYOUN, JO YUN JEONG
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:	The present invention relates to a method for manufacturing a porous polyimide film for a flexible metal-clad laminate to improve dielectric properties, and a porous polyimide film manufactured thereby. According to one aspect of the present invention, the method comprises the steps of: adding an acid anhydride and diamine to a solvent and performing reaction to prepare a polyamic acid solution; mixing the polyamic acid solution and a non-solvent to prepare a mixed solution; coating the mixed solution on a metal foil and drying the solution to form a polyimide coating layer; and imidizing the polyimide coating layer. 본 발명은 연성금속판적층체용 다공성 폴리이미드 필름의 제조방법 및 이를 사용하여 제조된 다공성 폴리이미드 필름에 관한 것으로, 본 발명의 일 측면은, 산무수물 및 디아민을 용매에 첨가하고 반응시켜 폴리아믹산(Polyamic acid) 용액을 제조하는 단계; 상기 폴리아믹산 용액 및 비용매를 혼합하여 혼합용액을 제조하는 단계; 상기 혼합용액을 금속박 상에 코팅한 후 건조하여 폴리이미드 코팅층을 형성시키는 단계; 및 상기 폴리이미드 코팅층을 이미드화하는 단계;를 포함하는, 연성금속판적층제용 다공성 폴리이미드 필름의 제조방법을 제공한다.