NORBORNENE-BASED POLYMER HAVING LOW DIELECTRIC CONSTANT AND LOW-LOSS PROPERTY, AND INSULATING MATERIAL, PRINTED CIRCUIT BOARD AND FUNCTIONAL ELEMENT, USING THE SAME

• Main Authors: LEE HWA-YOUNG, YOON DO-YEUNG, LIM SEONG-TAEK, OH JUN-ROK, GREINER ANDREAS, CHO JAEOON
• Format: Patent
• Language: English
• Published: 25.03.2010
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; COMPOSITIONS BASED THEREON; CONDUCTORS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PRINTED CIRCUITS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a novel norbornene-based polymer having a low dielectric constant, low-loss properties and excellent processability and useful as a low-loss insulating material, and to provide an insulating material, a printed circuit board and a functional element, using the polymer. SOLUTION: The norbornene-based polymer includes at least one of repeating unit expressed by general formula (1). In the formula, at least one of R1 to R4 independently represents a substituted or unsubstituted linear or branched aralkyl group having 4 to 31 carbon atoms, and the rest of R1 to R4 each independently represents a hydrogen atom or a substituted or unsubstituted linear or branched 1-3 C alkyl group; and n is an integer of 250 to 400. COPYRIGHT: (C)2010,JPO&INPIT