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    • 1. 发明申请
    • Polybutylene terephthalate
    • 聚对苯二甲酸丁二醇酯
    • US20090264611A1
    • 2009-10-22
    • US10594668
    • 2005-03-29
    • Toshiyuki HamanoMasanori YamamotoShinichiro MatsuzonoKenji Noda
    • Toshiyuki HamanoMasanori YamamotoShinichiro MatsuzonoKenji Noda
    • C08G63/183C08G79/00
    • C08G63/85C08G63/183
    • Polybutylene terephthalate has an intrinsic viscosity of 0.7 to 1.0 dL/g and an end carboxyl group concentration of 0.1 to 18 μeq/g, which is produced in a presence of a catalyst comprising a titanium compound and a metal compound containing a metal of Group 2A of the Periodic Table. In the preferable embodiment of the present invention, the polybutylene terephthalate has a crystallization temperature of 170 to 195° C. as measured at a temperature drop rate of 20° C./min using a differential scanning calorimeter, an end vinyl group concentration of not more than 10 μeq/g, and not more than 10% of a solution haze of a solution prepared by dissolving 2.7 g of said polybutylene terephthalate in 20 mL of a mixed solvent containing phenol and tetrachloroethane at a weight ratio of 3:2.The polybutylene terephthalate of the present invention exhibits excellent color tone, hydrolysis resistance, heat stability, transparency and moldability as well as a less content of impurities, which is suitably applicable to films, monofilaments, fibers, electric and electronic parts, automobile parts, etc.
    • 聚对苯二甲酸丁二醇酯的特性粘度为0.7〜1.0dL / g,末端羧基浓度为0.1〜18mueq / g,其是在含有钛化合物和含有2A族金属的金属化合物的催化剂存在下制备的 的周期表。 在本发明的优选实施方案中,聚对苯二甲酸丁二醇酯的结晶温度为170〜195℃,使用差示扫描量热计,以20℃/分钟的降温速度测定,末端乙烯基浓度不为 通过将2.7g所述聚对苯二甲酸丁二醇酯溶解在20mL含有苯酚和四氯乙烷的混合溶剂中,以3:2的重量比制备的溶液的溶液雾度大于10emueq / g,不超过10%。 本发明的聚对苯二甲酸丁二醇酯显示出优异的色调,耐水解性,热稳定性,透明性和成型性以及较少的杂质含量,其适用于膜,单丝,纤维,电气和电子部件,汽车部件等 。
    • 2. 发明授权
    • Process for producing polybutylene terephthalate
    • 生产聚对苯二甲酸丁二醇酯的方法
    • US07550552B2
    • 2009-06-23
    • US10594676
    • 2005-04-28
    • Masanori YamamotoToshiyuki HamanoShinichiro Matsuzono
    • Masanori YamamotoToshiyuki HamanoShinichiro Matsuzono
    • C08G63/00
    • C08G63/85
    • Polybutylene terephthalate is produced by continuously subjecting terephthalic acid and 1,4-butanediol to an esterification reaction in the presence of a titanium compound catalyst using one-stage or plural-stage esterification reaction vessel(s) and then subjecting the resultant reaction product to a polycondensation reaction, wherein the esterification reaction between terephthalic acid and 1,4-butanediol is conducted in the presence of a titanium compound having a specific concentration under a specific pressure at a specific molar ratio between the raw materials. The process avoids undesirable side reactions by continuously conducting esterification reaction using terephthalic acid as a raw material, and can minimize loss of raw materials.
    • 聚对苯二甲酸丁二醇酯通过在钛化合物催化剂的存在下,使用一级或多级酯化反应容器连续使对苯二甲酸和1,4-丁二醇进行酯化反应,然后将所得反应产物进行 缩聚反应,其中对苯二甲酸和1,4-丁二醇之间的酯化反应在特定浓度的特定浓度的钛化合物的存在下在原料之间以特定的摩尔比进行。 该方法通过使用对苯二甲酸作为原料连续进行酯化反应来避免不期望的副反应,并且可以使原料的损失最小化。
    • 3. 发明申请
    • Polybutylene terephthalate and process for producing thereof
    • 聚对苯二甲酸丁二醇酯及其制造方法
    • US20090054618A1
    • 2009-02-26
    • US11990916
    • 2006-08-28
    • Kenji NodaMasanori YamamotoShinichiro MatsuzonoToshiyuki HamanoYoshio AkahaneHidekazu Shouji
    • Kenji NodaMasanori YamamotoShinichiro MatsuzonoToshiyuki HamanoYoshio AkahaneHidekazu Shouji
    • C08G63/183C08G63/85
    • C08G63/85C08G63/80
    • An object of the present invention is to provide polybutylene terephthalate which has excellent color tone, hydrolysis resistance, heat stability, transparency and moldability as well as a less content of impurities, can be produced with maintaining its productivity while preventing from generation of tetrahydrofuran as a by-product, and can be suitably applied to films, monofilaments, fibers, electric and electronic parts, automobile parts, etc.In an aspect of the present invention, there is provided a process for continuously producing polybutylene terephthalate from terephthalic acid and 1,4-butanediol in a presence of a catalyst comprising a titanium compound and a compound of at least one metal selected from Group 1 and Group 2 of the Periodic Table, which process satisfies such the following requirements (a) to (c) that: (a) an oligomer is obtained by conducting a continuously esterification reaction of terephthalic acid and 1,4-butanediol in the presence of titanium catalyst in an amount of not more than 460 μmol as a titanium atom based on 1 mol of terephthalic acid unit; (b) polycondensation reaction of the said oligomer is continuously conducted in the presence of compound of at least one metal selected from Group 1 and Group 2 of the Periodic Table as the catalyst in an amount of not more than 450 μmol as the metal atom based on 1 mol of terephthalic acid unit; and (c) the said compound of at least one metal may be added to a stage before obtaining an oligomer having esterification conversion of not less than 90% in an amount of not more than 300 μmol as the metal atom based on 1 mol of terephthalic acid unit, and the said compound of at least one metal may be added to a stage on or after obtaining an oligomer having esterification conversion of not less than 90% in an amount of not less than 10 μmol as the metal atom based on 1 mol of terephthalic acid unit.
    • 本发明的目的是提供具有优异色调,耐水解性,热稳定性,透明性和成型性以及较少杂质含量的聚对苯二甲酸丁二醇酯,同时保持其生产率,同时防止产生四氢呋喃作为 副产物,可适用于薄膜,单丝,纤维,电气电子部件,汽车部件等。在本发明的一个方面,提供了一种从对苯二甲酸和1, 在包含钛化合物和选自元素周期表第1族和第2族中的至少一种金属的化合物的催化剂存在下,该方法满足以下要求(a)至(c):( a)通过在钛催化剂的存在下进行对苯二甲酸和1,4-丁二醇的连续酯化反应获得低聚物 相对于1摩尔对苯二甲酸单元,钛原子为460摩尔以下的量; (b)所述低聚物的缩聚反应在作为催化剂的至少一种选自元素周期表第1族和第2族的金属的化合物存在下连续进行,其金属原子数不超过450μmol 在1mol对苯二甲酸单元上; 和(c)所述至少一种金属的化合物可以在获得具有不低于90%的酯化转化率的低聚物之后的阶段中加入到作为金属原子的不超过300μmol的量,基于1mol对苯二甲酸 酸单元,并且所述至少一种金属的化合物可以在获得基于1摩尔的金属原子的不少于10摩尔的酯化转化率为90%以上的低聚物或其后添加 的对苯二甲酸单元。
    • 4. 发明申请
    • Process for Producing Polybutylene Terephthalate
    • 生产聚对苯二甲酸丁二醇酯的方法
    • US20080081886A1
    • 2008-04-03
    • US10594676
    • 2005-04-28
    • Masanori YamamotoToshiyuki HamanoShinichiro Matsuzono
    • Masanori YamamotoToshiyuki HamanoShinichiro Matsuzono
    • C08F4/76
    • C08G63/85
    • A process for producing polybutylene terephthalate comprising the steps of continuously subjecting terephthalic acid and 1,4-butanediol to esterification reaction in the presence of a titanium compound catalyst using one-stage or plural-stage esterification reaction vessel(s) and then subjecting the resultant reaction product to polycondensation reaction, wherein the esterification reaction between terephthalic acid and 1,4-butanediol is conducted in the presence of a titanium compound having a specific concentration under a specific pressure at a specific molar ratio between the raw materials.The process of the present invention can be prevented from undergoing undesirable side reactions upon continuously conducting esterification reaction using terephthalic acid as a raw material, and can minimize loss of raw materials.
    • 一种聚对苯二甲酸丁二醇酯的制造方法,其特征在于,在使用一级或多级酯化反应容器的钛化合物催化剂的存在下,使对苯二甲酸和1,4-丁二醇进行酯化反应,进行酯化反应, 反应产物与缩聚反应,其中对苯二甲酸和1,4-丁二醇之间的酯化反应在特定浓度的特定浓度的钛化合物的存在下在原料之间的特定摩尔比下进行。 可以防止本发明的方法在使用对苯二甲酸作为原料连续进行酯化反应时发生不希望的副反应,并且可以使原料的损失最小化。