| abstract |
PROBLEM TO BE SOLVED: To provide excellent flame retardancy without containing any halogen-based flame retardant, excellent thin-wall fluidity, excellent tracking resistance, cold-heat cycle resistance, etc., and polyester resin. Flame-retardant polyester resin composition that also has excellent mechanical properties and is effective for resin sealing of electromagnetic windings for motors by injection molding and resin sealing of other electrical parts. I will provide a. A glycidyl group-containing copolymer composed of a glycidyl ester of an α, β-unsaturated acid and an α-olefin in an amount of 0.1 to 100 parts by weight based on 100 parts by weight of a thermoplastic polyester resin. A flame-retardant polyester resin composition comprising 5 parts by weight, 5 to 20 parts by weight of an olefin copolymer comprising an α-olefin containing no glycidyl group and an alkyl acrylate, and 0 to 100 parts by weight of an inorganic reinforcing agent. |