| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a member for a direct ignition coil, excellent in insulation properties and rigidity under high temperature. <P>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<SP POS="POST">1</SP>-CO-, (2) -CO-Ar<SP POS="POST">2</SP>-CO-, and (3) -X-Ar<SP POS="POST">3</SP>-Y- (where, Ar<SP POS="POST">1</SP>represents a phenylene group, a naphthylene group, or a biphenylene group, Ar<SP POS="POST">2</SP>and Ar<SP POS="POST">3</SP>each 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<SP POS="POST">4</SP>-Z-Ar<SP POS="POST">5</SP>- (where, Ar<SP POS="POST">4</SP>and Ar<SP POS="POST">5</SP>each 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). <P>COPYRIGHT: (C)2013,JPO&INPIT |
