JP2005325214A5 - - Google Patents
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- JP2005325214A5 JP2005325214A5 JP2004144084A JP2004144084A JP2005325214A5 JP 2005325214 A5 JP2005325214 A5 JP 2005325214A5 JP 2004144084 A JP2004144084 A JP 2004144084A JP 2004144084 A JP2004144084 A JP 2004144084A JP 2005325214 A5 JP2005325214 A5 JP 2005325214A5
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- temperature
- polyethylene terephthalate
- size
- crystallization temperature
- crystallization
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また、(B)金属酸化物で表面処理されたトリアジン系化合物とシアヌール酸またはイソシアヌール酸を配合することにより、ポリエチレンテレフタレートの示差熱量計で測定される約180℃の結晶化温度を高くすることができ、かつ約20μmの球晶サイズを小さくすることができる。ポリエチレンテレフタレートの結晶化温度が高い程、球晶は小さい程、結晶化速度が速いため射出成形性に優れる。射出成形性に優れるポリエチレンテレフタレートの示差熱量計で測定される結晶化温度はとくに200℃以上、さらには210℃以上であることが好ましい。また、球晶の大きさ(サイズ)は、とくに5μm以下、さらには3μm以下が好ましい。200℃未満の結晶化温度や5μmを越す球晶サイズのポリエチレンテレフタレート樹脂は、肉厚の射出成形品の場合、成形品に変形が生じたり、表面が透明で内部が白濁するなどの成形外観の不具合が生じ易い。つぎに前記の結晶化温度と球晶サイズの測定方法について述べる。示差熱量計で測定される結晶化温度の測定方法は、昇温スピード20℃/分で290℃まで昇温させて5分間その温度を保ち組成物を溶融させた後、降温スピード20℃/分で室温まで降温させ測定することにより求める。降温途中に組成物の結晶化に伴うピークが生じ、このピーク温度が本発明の結晶化温度である。また、球晶サイズの測定方法は、ポリエチレンテレフタレート樹脂組成物の射出成形品内部を切削加工し、さらにミクロトームで薄い試料として200倍の偏光顕微鏡を用いて球晶を観察・写真に撮影した。この時、観察されるのは、ポリエチレンテレフタレートの球晶であり、同じ倍率で観察・写真撮影したスケールから球晶のサイズが求められる。 (B) By adding a triazine compound surface-treated with a metal oxide and cyanuric acid or isocyanuric acid, the crystallization temperature of about 180 ° C. measured with a differential calorimeter of polyethylene terephthalate is increased. And a spherulite size of about 20 μm can be reduced. The higher the crystallization temperature of polyethylene terephthalate, the smaller the spherulite, the faster the crystallization speed, and the better the injection moldability. The crystallization temperature measured with a differential calorimeter of polyethylene terephthalate having excellent injection moldability is particularly preferably 200 ° C. or higher, and more preferably 210 ° C. or higher. The size (size) of the spherulites is particularly preferably 5 μm or less, and more preferably 3 μm or less. Spherical sized polyethylene terephthalate resin with a crystallization temperature of less than 200 ° C. and a spherulite size exceeding 5 μm has a molded appearance such as deformation of the molded product or a transparent surface and white turbidity inside the molded product. Problems are likely to occur. Next, a method for measuring the crystallization temperature and the spherulite size will be described. Measurement method of crystallization temperature measured by a differential calorimeter was melted for 5 minutes composition keeping the temperature was raised to 290 ° C. at a heating speed 20 ° C. / min, cooling speed 20 ° C. / min Calculate by lowering the temperature to room temperature. A peak accompanying crystallization of the composition occurs during the temperature reduction, and this peak temperature is the crystallization temperature of the present invention. The spherulite size was measured by cutting the inside of an injection molded product of the polyethylene terephthalate resin composition, and observing and photographing the spherulites with a microtome and using a 200 × polarizing microscope as a thin sample. At this time, the spherulites of polyethylene terephthalate are observed, and the size of the spherulites is determined from the scales observed and photographed at the same magnification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004144084A JP4665433B2 (en) | 2004-05-13 | 2004-05-13 | Flame retardant polyethylene terephthalate resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004144084A JP4665433B2 (en) | 2004-05-13 | 2004-05-13 | Flame retardant polyethylene terephthalate resin composition |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005325214A JP2005325214A (en) | 2005-11-24 |
JP2005325214A5 true JP2005325214A5 (en) | 2007-06-28 |
JP4665433B2 JP4665433B2 (en) | 2011-04-06 |
Family
ID=35471812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004144084A Expired - Fee Related JP4665433B2 (en) | 2004-05-13 | 2004-05-13 | Flame retardant polyethylene terephthalate resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4665433B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5194357B2 (en) * | 2005-12-06 | 2013-05-08 | 東レ株式会社 | Flame retardant polyethylene terephthalate resin composition |
KR20080112363A (en) * | 2006-04-04 | 2008-12-24 | 디에스엠 아이피 어셋츠 비.브이. | Halogen free flame retardant polyester composition |
GB0915687D0 (en) | 2009-09-08 | 2009-10-07 | Dupont Teijin Films Us Ltd | Polyester films |
GB2488787A (en) | 2011-03-07 | 2012-09-12 | Dupont Teijin Films Us Ltd | Stabilised polyester films |
GB201310837D0 (en) | 2013-06-18 | 2013-07-31 | Dupont Teijin Films Us Ltd | Polyester film -IV |
GB201317551D0 (en) | 2013-10-03 | 2013-11-20 | Dupont Teijin Films Us Ltd | Co-extruded polyester films |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2751815B2 (en) * | 1994-02-08 | 1998-05-18 | 日産化学工業株式会社 | Surface-treated melamine cyanurate powder and method for producing the same |
JPH1046152A (en) * | 1996-08-05 | 1998-02-17 | Ajinomoto Co Inc | Surface-treated flame-retardant organic powder and resin composition containing the same |
JPH10316843A (en) * | 1997-05-16 | 1998-12-02 | Kanegafuchi Chem Ind Co Ltd | Flame retardant polyester resin composition |
JP2000273294A (en) * | 1999-03-24 | 2000-10-03 | Kanegafuchi Chem Ind Co Ltd | Flame-retardant polyester resin composition |
JP4590120B2 (en) * | 2000-12-26 | 2010-12-01 | ダイセル化学工業株式会社 | Flame retardant resin composition |
JP2005325216A (en) * | 2004-05-13 | 2005-11-24 | Toray Ind Inc | Molding having screw or terminal insertion part |
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2004
- 2004-05-13 JP JP2004144084A patent/JP4665433B2/en not_active Expired - Fee Related
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