POLYESTER RESIN COMPOSITION

• Main Authors: YAMANAKA YASUSHI, SAKOGAWA KOUICHI, TAKISE OSAMU
• Format: Patent
• Language: English; Japanese
• Published: 19.07.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a polyester resin composition having high tracking resistance (CTI) without impairing fluidity while maintaining flame retardancy.SOLUTION: The polyester resin composition contains, based on 100 pts.mass of a thermoplastic polyester resin (A), 0-120 pts.mass of glass fibers (B) and 0-50 pts.mass of a bromine-based flame retardant (C), and a total content of (B) and (C) is 5-150 pts.mass. The polyester resin composition further contains 1-25 pts.mass in total of a first fluororesin (D1) and a second fluororesin (D2) having a lower mass average molecular weight than the first fluororesin (D1).SELECTED DRAWING: None 【課題】難燃性を維持しながら、流動性を損なうことなく、高い耐トラッキング性（ＣＴＩ）を有するポリエステル樹脂組成物を提供する。【解決手段】熱可塑性ポリエステル樹脂（Ａ）１００質量部に対し、ガラス繊維（Ｂ）０〜１２０質量部及び臭素系難燃剤（Ｃ）０〜５０質量部を含有し、（Ｂ）と（Ｃ）の含有量の合計は５〜１５０質量部であり、さらに、第１のフッ素樹脂（Ｄ１）と、第１のフッ素樹脂（Ｄ１）より質量平均分子量が低い第２のフッ素樹脂（Ｄ２）を併せて１〜２５質量部含有することを特徴とするポリエステル樹脂組成物。【選択図】なし