公开(公告)号：US20060020103A1

公开(公告)日：2006-01-26

申请号：US11183854

申请日：2005-07-19

申请人： Ryoji Tsukamoto ,  Noriko Hashimoto ,  Toyohiko Hoshi

发明人： Ryoji Tsukamoto ,  Noriko Hashimoto ,  Toyohiko Hoshi

IPC分类号： C08G63/02

CPC分类号： C08G63/78 ,  C08K5/5317 ,  D01F1/10 ,  D01F6/62 ,  C08L67/02

摘要： Polytrimethylene terephthalate which has a low content of a cyclic dimer and hardly produces the cyclic dimer when it is melt molded and a fiber made from the polytrimethylene terephthalate. Polytrimethylene terephthalate (A) is essentially composed of a trimethylene terephthalate unit, has an intrinsic viscosity of 0.5 to 1.6 dl/g and contains 0.01 to 0.5 wt % of a compound represented by the following formula (I) or (II): (R1, R2 and R3 are the same or different hydrocarbon groups having 1 to 10 carbon atoms, n is an integer of 1 to 5, M is an alkali metal atom or alkali earth metal atom, and m is 1 when M is an alkali metal atom and 2 when M is an alkali earth metal atom), (R4 and R5 are the same or different and each a hydrogen atom or hydrocarbon group having 1 to 10 carbon atoms).

摘要翻译： 聚对苯二甲酸丙二醇酯，其具有低含量的环状二聚物，并且在熔融模塑时几乎不产生环状二聚体，并且由聚对苯二甲酸丙二醇酯制成的纤维。 聚对苯二甲酸丙二醇酯（A）主要由对苯二甲酸丙二醇酯单元构成，其特性粘度为0.5〜1.6dl / g，含有0.01〜0.5重量％的下式（I）或（II）表示的化合物：（R R 1，R 2和R 3是与碳原子数1〜10的相同或不同的烃基，n为1〜5的整数 ，M是碱金属原子或碱土金属原子，当M是碱金属原子时m是1，当M是碱土金属原子时m是1），（R 4）和R _{5个相同或不同，各自为氢原子或碳原子数为1〜10的烃基）。}