发明公开
- 专利标题： POLYTRIMETHYLENE TEREPHTHALATE RESINS WITH IMPROVED PROPERTIES
- 专利标题（中）： 具有改进性能的聚对苯二甲酸乙二醇酯树脂
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申请号： EP03744780.2申请日： 2003-02-20
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公开(公告)号： EP1487899A1公开(公告)日： 2004-12-22
- 发明人: SEIDEL, Eckhard , GEMMEL, Bernd , HELDMANN, Karl-Heinz
- 申请人： Zimmer AG
- 申请人地址： Borsigallee 1 60388 Frankfurt DE
- 专利权人： Zimmer AG
- 当前专利权人： Zimmer AG
- 当前专利权人地址： Borsigallee 1 60388 Frankfurt DE
- 代理机构： Luderschmidt, Schüler & Partner GbR
- 优先权： EP02006746 20020323
- 国际公布： WO2003080702 20031002
- 主分类号： C08G63/183
- IPC分类号： C08G63/183
摘要：
A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt unstable, organic nitrogen-containing stabilizing compound. Such PTT resin has an acrolein formation rate at 280° C of less than 15 ppm/minute. Preferably the residual acrolein content of the PTT resin is less than 5 ppm. Preferred additive compounds include amines, amino acids, amidines, urea and other N-compounds. The additive compounds are added to the polymer in molten state and/or to the resin, which is then processed to fibers, filaments, non-wovens, films and/or mouldings.
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