MEMBER FOR DIRECT IGNITION COIL, COIL, AND DIRECT IGNITION COIL

• Main Author: NEZU HIDEAKI
• Format: Patent
• Language: English
• Published: 20.05.2013
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CHEMISTRY; COMBUSTION ENGINES; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRICITY; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSFORMERS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

PROBLEM TO BE SOLVED: To provide a member for a direct ignition coil, excellent in insulation properties and rigidity under high temperature.SOLUTION: A member for a direct ignition coil includes a liquid crystalline polyester as a forming material, the liquid crystalline polyester having a repeating unit represented by the following formulae (1), (2) and (3). A content of a repeating unit having an m-phenylene group in the liquid crystalline polyester is 0 mol% or more and 6.5 mol% or less with respect to the total amount of the whole repeating units. (1) -O-Ar-CO-, (2) -CO-Ar-CO-, and (3) -X-Ar-Y- (where, Arrepresents a phenylene group, a naphthylene group, or a biphenylene group, Arand Areach represents a phenylene group, a naphthylene group, a biphenylene group, or a group represented by the following formula (4), and X and Y each represents an oxygen atom or an imino group). (4) -Ar-Z-Ar- (where, Arand Areach represents a phenylene group or a naphthylene group, and Z represents an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or an alkylidene group).