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    Polyesters compositions which crystallize rapidly
    53.
    发明授权
    Polyesters compositions which crystallize rapidly 失效
    聚酯快速结晶的组合物

    公开(公告)号：US4435546A

    公开(公告)日：1984-03-06

    申请号：US40385

    申请日：1979-05-18

    申请人： Peter Bier ,  Rudolf Binsack

    发明人： Peter Bier ,  Rudolf Binsack

    IPC分类号： C08K5/12 ,  C08L67/02 ,  C08F283/00 ,  C08G63/76 ,  C08L67/00

    CPC分类号： C08K5/12 ,  C08L67/02 ,  C08L67/025

    摘要： Polyalkylene terephthalates containing 0.5-30% by weight of monomeric aliphatic carboxylic acid esters have a higher crystallization speed and thus allow lower mold temperatures and shorter injection cycles. The polyalkylene terephthalates generally have intrinsic viscosities in excess of about 0.4 dl/g in 1:1 phenol tetrachloroethane at 25.degree. C. and are at least about 90 mol % terephthalic acid based. The ester additive is based on aliphatic cycloaliphatic or araliphatic carboxylic acids, with sebacic and adipic being preferred, and aliphatic, cycloaliphatic or araliphatic alcohols.Faster crystallization rates can be imparted to polyalkylene terephthalates by mixing them with the ester additive and melt homogenizing the mixture.

    摘要翻译： 含有0.5-30重量％单体脂肪族羧酸酯的聚对苯二甲酸亚烷基酯具有较高的结晶速度，从而允许较低的模具温度和较短的注射循环。 聚对苯二甲酸亚烷基酯通常在25℃在1：1苯酚四氯乙烷中具有超过约0.4dl / g的特性粘度，并且是至少约90mol％对苯二甲酸。 酯添加剂基于脂族环脂族或芳脂族羧酸，优选癸二酸和己二酸，脂肪族，脂环族或芳脂族醇。 聚对苯二甲酸亚烷基酯通过与​​酯添加剂混合并使混合物熔融均匀化，可以提高结晶速度。

    Polyethylene terephthalates which crystallize rapidly and a process for their preparation
    54.
    发明授权
    Polyethylene terephthalates which crystallize rapidly and a process for their preparation 失效
    聚对苯二甲酸乙二醇酯快速结晶，其制备方法

    公开(公告)号：US4314928A

    公开(公告)日：1982-02-09

    申请号：US164458

    申请日：1980-06-30

    申请人： Peter Bier ,  Rudolf Binsack

    发明人： Peter Bier ,  Rudolf Binsack

    IPC分类号： C08G63/78 ,  C08G63/00 ,  C08G63/181 ,  C08G63/183 ,  C08G63/80 ,  C08L67/00

    CPC分类号： C08G63/80 ,  C08G63/183

    摘要： The present invention relates to a polyethylene terephthalate copolyester which crystallizes rapidly and a process to synthesize such a polymer. The polymer is produced by melt homogenizing pure polyethylene terephthalate segments (with minimum intrinsic viscosities above about 0.2 dl/g) with certain specified C.sub.4-10 diols, allowing the mixture to solidify and subjecting the solid product to a solid phase post-condensation reaction. The copolyester has a minimum intrinsic viscosity of 0.4 dl/g and crystallizes more rapidly than either pure polyethylene terephthalate of equivalent molecular weight or copolyester from the same acid and diol units wherein the pure polyethylene terephthalate segments are not significantly prepolymerized before reaction with the co-diols. In a preferred embodiment about 0.23 to 9.1 parts of co-diol per 100 parts of polyethylene terephthalate segment are melt homogenized in an extruder and the extrudate is subject to solid state condensation by the application of elevated temperatures and reduced pressure.

    摘要翻译： 本发明涉及一种快速结晶的聚对苯二甲酸乙二醇酯共聚酯和一种合成这种聚合物的方法。 通过将纯聚对苯二甲酸乙二醇酯片段（具有最高特性粘度高于约0.2dl / g）与某些特定的C 4-10二醇熔融均匀来制备聚合物，使混合物固化并使固体产物进行固相缩合反应。 共聚多酯具有0.4dl / g的最小特性粘度并且比来自相同的酸和二醇单元的当量分子量的纯聚对苯二甲酸乙二醇酯或共聚多酯结晶得更快，其中纯聚对苯二甲酸乙二醇酯链段在与共聚酯反应之前没有显着预聚， 二醇。 在优选的实施方案中，每100份聚对苯二甲酸乙二醇酯链段约0.23至9.1份共二醇在挤出机中熔融均化，并通过施加升高的温度和减压使挤出物进行固态冷凝。

    Block copolyesters which crystallize rapidly
    55.
    发明授权
    Block copolyesters which crystallize rapidly 失效
    封闭共聚酯快速结晶

    公开(公告)号：US4207230A

    公开(公告)日：1980-06-10

    申请号：US875047

    申请日：1978-02-03

    申请人： Peter Bier ,  Rudolf Binsack

    发明人： Peter Bier ,  Rudolf Binsack

    IPC分类号： C08G63/00 ,  C08G63/18 ,  C08G63/181 ,  C08G63/183 ,  C08G63/66 ,  C08G63/672 ,  C08G63/78 ,  C08G63/91 ,  C08L67/02 ,  C08L71/02

    CPC分类号： C08G63/672 ,  C08G63/183 ,  Y10S260/35

    摘要： The current invention is concerned with block copolyesters of low glass transition temperature segments and ethylene glycol based polyester segments linked together by carboxylic acid ester groups and special diols, and a process for preparing these copolyesters. These copolyesters display molded resin properties similar to polyethylene terephthalate but crystallization behavior similar to polybutylene terephthalate, i.e. they have high strength and superior solvent resistance, but they also crystallize rapidly. They are made by subjecting low glass transition temperature (less than 0.degree. C.) polymers with carboxyl, hydroxyl or reactive ester end groups to esterification or transesterification conditions with ethylene glycol based polyester segments having a minimum intrinsic viscosity of 0.2 dl/g and special diols having four to ten carbon atoms with 3 or 4 carbon atoms between the hydroxyl groups in the presence of appropriate catalysts. In a preferred embodiment, the three components are subject to melt homogenization in an extruder and the solidified extrudate is subject to a solid state polycondensation reaction.

    摘要翻译： 本发明涉及低羧酸酯基和特殊二醇连接在一起的低玻璃化转变温度段和基于乙二醇的聚酯链段的嵌段共聚酯，以及这些共聚酯的制备方法。 这些共聚酯显示与聚对苯二甲酸乙二醇酯类似的模塑树脂性能，但结晶行为类似于聚对苯二甲酸丁二醇酯，即它们具有高强度和优异的耐溶剂性，但它们也快速结晶。 它们是通过将具有羧基，羟基或活性酯端基的低玻璃化转变温度（低于0℃）的聚合物与具有0.2dl / g的最小特性粘度的乙二醇基聚酯链段进行酯化或酯交换反应而制成的，并且特殊 在合适的催化剂存在下，羟基之间具有4至10个碳原子数为3或4个碳原子的二元醇。 在优选的实施方案中，三种组分在挤出机中进行熔融均匀化，固化的挤出物进行固态缩聚反应。