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    Process for the preparation of polyesters
    1.
    发明授权
    Process for the preparation of polyesters 失效
    制备聚酯的方法

    公开(公告)号：US4133801A

    公开(公告)日：1979-01-09

    申请号：US870703

    申请日：1978-01-19

    申请人： Yasuo Morimatsu ,  Toshio Tanaka ,  Nobuya Okumura ,  Takeshi Horiuchi

    发明人： Yasuo Morimatsu ,  Toshio Tanaka ,  Nobuya Okumura ,  Takeshi Horiuchi

    IPC分类号： C08G63/00 ,  C08G63/20 ,  C08G63/78 ,  C08G63/30

    CPC分类号： C08G63/20

    摘要： A process for the preparation of polyesters by reacting a di-lower alkyl ester of a dicarboxylic acid consisting mainly of terephthalic acid with an alkylene glycol consisting mainly of ethylene glycol or tetramethylene glycol and thereafter polycondensing an obtained di-glycol ester of the dicarboxylic acid and/or a low molecular weight condensate thereof, in the presence of (A) a lower alkyl p-formylbenzoate in an amount of about 50 - 1000 ppm, (B) a di-lower alkyl isophthalate in an amount of about 50 - 1000 ppm and (C) p-toluic acid and/or a mono-lower alkyl terephthalate in an amount of more than about 30 ppm, wherein the total amount of the compounds (A), (B) and (C) is not more than about 2000 ppm, to thereby form polyesters which have good qualities and excellent melt-forming properties.

    摘要翻译： 通过使主要由对苯二甲酸组成的二羧酸的二低级烷基酯与主要由乙二醇或1,4-丁二醇组成的亚烷基二醇反应，然后将所得的二羧酸的二醇酯缩聚得到二羧酸的二醇酯和 （A）约50-1000ppm的对位甲酰基苯甲酸低级烷基酯的存在下，（B）约50-1000ppm的二低级烷基间苯二甲酸酯，或其低分子量缩合物 和（C）对甲苯甲酸和/或大于约30ppm的对苯二甲酸单低级烷基酯，其中化合物（A），（B）和（C）的总量不大于约 2000ppm，从而形成具有良好的质量和优异的熔融形成性能的聚酯。

    Process for preparation of polyesters
    2.
    发明授权
    Process for preparation of polyesters 失效
    聚酯的制备方法

    公开(公告)号：US3984379A

    公开(公告)日：1976-10-05

    申请号：US487620

    申请日：1974-07-11

    申请人： Isao Oka ,  Takeo Shima ,  Takanori Urasaki ,  Takayuki Kobayashi ,  Kazuyoshi Suzuki

    发明人： Isao Oka ,  Takeo Shima ,  Takanori Urasaki ,  Takayuki Kobayashi ,  Kazuyoshi Suzuki

    IPC分类号： C07C67/26 ,  C08G63/06 ,  C08G63/78 ,  C08G63/87 ,  C08G63/26 ,  C08G63/30

    CPC分类号： C08G63/87 ,  C07C67/26 ,  C08G63/06 ,  C08G63/78

    摘要： According to this invention, during the formation of a fiber-forming polyester by the reaction of a dicarboxylic acid or its functional derivative with a glycol, an aromatic ortho-ester such as hexaphenyl ortho terephthalate is added to the molten polyester whereby a fiber-forming polyester of a low content of free carboxyl groups and diethylene glycol units is prepared. Moreover, the reaction rate of the polycondensation is greatly increased by selecting and using a suitable aromatic ortho-ester and thus there can be obtained a fiber-forming polyester of a very high molecular weight.

    摘要翻译： 根据本发明，在通过二羧酸或其官能衍生物与二醇反应形成纤维形成聚酯时，向熔融聚酯中加入邻苯二甲酸六苯酯等芳族原酸酯，由此形成纤维 制备低含量游离羧基和二甘醇单元的聚酯。 此外，通过选择和使用合适的芳族原酸酯，可以大大提高缩聚反应速度，因此可以得到非常高分子量的成纤聚酯。

    Process for production of polyester
    7.
    发明授权
    Process for production of polyester 失效
    涤纶生产工艺

    公开(公告)号：US4440924A

    公开(公告)日：1984-04-03

    申请号：US532624

    申请日：1983-09-15

    申请人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Hiroshi Hashimoto ,  Takeshi Ohta ,  Osamu Makimura

    发明人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Hiroshi Hashimoto ,  Takeshi Ohta ,  Osamu Makimura

    IPC分类号： C08G63/82 ,  C08G63/87 ,  C08G63/30

    CPC分类号： C08G63/87 ,  C08G63/826

    摘要： A process for production of a polyester comprising units of ethylene terephthalate as the major repeating units by supplying terephthalic acid and ethylene glycol continuously or intermittently to bis(beta-hydroxyethyl) terephthalate or its oligomer so as to carry out esterification under a pressure of not more than about 1.0 kg/cm.sup.2, followed by polycondensation, which is characterized in that at least one magnesium compound is incorporated into the reaction system in an amount of about 30 to 400 ppm in terms of Mg to the polyester when the esterification rate in the step of esterification reaches about 20-80% and at least one phosphorus compound is incorporated into the reaction system in an amount as satisfying the following equation (I) at the stage after the esterification rate reaches not less than about 91% and before the termination of the initial condensation in the step of esterification:1.2.ltoreq.Mg/P.ltoreq.20 (I)wherein Mg/P is the atomic ratio of the magnesium atom to the phosphorus atom. The produced polyester shows a high electrostatic adherence.

    摘要翻译： 一种通过连续或间歇地向双（β-羟乙基）对苯二甲酸酯或其低聚物供应对苯二甲酸和乙二醇作为主要重复单元的聚对苯二甲酸乙二醇酯单元的生产方法，以在不超过一个压力下进行酯化 约1.0kg / cm 2，然后进行缩聚，其特征在于当步骤中的酯化速率在聚酯中时，至少一种镁化合物以约30-400ppm的量掺入反应体系中 的酯化达到约20-80％，并且在酯化速率达到不低于约91％之后且在终止之前的阶段，至少一种磷化合物以满足以下等式（I）的量引入反应体系中 在酯化步骤中的初始缩合：1.2 Mg / P 20（I）其中Mg / P是镁原子与磷酸根的原子比 原子 所生产的聚酯显示出高的静电附着力。

    Preparation of polyesters
    8.
    发明授权
    Preparation of polyesters 失效
    聚酯的制备

    公开(公告)号：US4154921A

    公开(公告)日：1979-05-15

    申请号：US916919

    申请日：1978-06-19

    申请人： Gurdial Singh

    发明人： Gurdial Singh

    IPC分类号： C08G63/82 ,  C08G63/30

    CPC分类号： C08G63/82

    摘要： The formation of manganese-derivative scale in equipment involved in polyester manufacture is reduced by introduction of a sterically hindered benzoic acid in approximately stoichiometric amount. The acids include 2,6-dichloro-, 2,6-dimethyl- and 2,4,6-trimethylbenzoic acids. The scale is believed to be insoluble manganese terephthalate, presumably formed by reaction of manganese acetate catalyst generated as a result of a side reaction during the ester exchange reaction of dimethyl terephthalate with excess ethylene glycol. Preferably an alkali metal salt of an organic acid, such as sodium acetate or lithium acetate is also used to give a synergistic effect in combination with the hindered acid.

    摘要翻译： 通过以约化学计量的量引入空间位阻苯甲酸，降低了涉及聚酯制造的设备中锰衍生物垢的形成。 酸包括2,6-二氯，2,6-二甲基和2,4,6-三甲基苯甲酸。 据认为是不溶性的对苯二甲酸锰，可能是由于在对苯二甲酸二甲酯与过量的乙二醇的酯交换反应期间由于副反应而产生的乙酸锰催化剂的反应形成的。 优选地，还使用有机酸的碱金属盐，例如乙酸钠或乙酸锂，以与受阻酸组合产生协同效应。

    Unsaturated polyesters prepared from a dicarboxylic acid and dibromoneopentyl glycol
    9.
    发明授权
    Unsaturated polyesters prepared from a dicarboxylic acid and dibromoneopentyl glycol 失效
    由二羧酸和二溴新戊二醇制备的不饱和聚酯

    公开(公告)号：US4384109A

    公开(公告)日：1983-05-17

    申请号：US189236

    申请日：1980-09-22

    申请人： Eric R. Larsen ,  Ernest L. Ecker

    发明人： Eric R. Larsen ,  Ernest L. Ecker

    IPC分类号： C08G63/682 ,  C08L67/06 ,  C08G63/30 ,  C08G63/38

    CPC分类号： C08G63/6828 ,  C08L67/06

    摘要： Unsaturated esters can be prepared from dicarboxylic acids and dibromoneopentyl glycol with improved resin color in a shorter reaction time with minimal corrosion of metallic reaction vessels and with a net energy saving by the process using an aryl sulfonic acid as the esterification catalyst and following completion of the reaction neutralizing the acid catalyst.

    摘要翻译： 不饱和酯可以由二羧酸和二溴新戊二醇制备，在更短的反应时间内具有改进的树脂颜色，同时金属反应容器的腐蚀最小，并且通过使用芳基磺酸作为酯化催化剂的方法得到净节能，并且完成 反应中和酸催化剂。

    Process for the production of polyester amide silicate resinous products
    10.
    发明授权
    Process for the production of polyester amide silicate resinous products 失效
    生产聚酯酰胺硅酸盐树脂产品的工艺

    公开(公告)号：US4346214A

    公开(公告)日：1982-08-24

    申请号：US297715

    申请日：1981-08-31

    申请人： David H. Blount

    发明人： David H. Blount

    IPC分类号： C08G69/42 ,  C08G69/44 ,  C08G63/04 ,  C08G63/30

    CPC分类号： C08G69/44 ,  C08G69/42

    摘要： Polyester amide silicate resinous products are produced by heating a mixture of an oxidated silicon compound, polyhydroxy compound, a polycarboxylic acid and/or polycarboxylic acid anhydride and a polyamine in the presence of an alkali catalyst.

    摘要翻译： 通过在碱催化剂的存在下加热氧化硅化合物，多羟基化合物，多元羧酸和/或多元羧酸酐和多胺的混合物来制备聚酯酰胺硅酸盐树脂产物。