METHOD FOR PRODUCING POLYIMIDE LAMINATE, AND POLYIMIDE LAMINATE

• Main Authors: NAKAYAMA TAKESHIGE, NAKAYAMA TOMONORI
• Format: Patent
• Language: English; Korean
• Published: 27.03.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The present invention relates to a polyimide laminate obtained by casting a polyamic acid solution composition comprising a phosphorus compound and a polyamic acid, which is obtained from a tetracarboxylic acid component comprising 3,3',4,4'-biphenyltetracarboxylic dianhydride as the main component and a diamine component comprising p-phenylenediamine as the main component, on a substrate; and then heating the polyamic acid solution composition, to form a polyimide layer having a thickness of less than 50 µm on the substrate.