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    Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester
    1.
    发明授权
    Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester 有权
    用于聚酯生产的催化剂，使用催化剂生产聚酯的方法，通过该方法获得的聚酯和聚酯的用途

    公开(公告)号：US06346070B1

    公开(公告)日：2002-02-12

    申请号：US09470664

    申请日：1999-12-22

    申请人： Takeshi Ohmatsuzawa ,  Fujito Ehara ,  Hideshi Hori ,  Kazuo Toyota ,  Kenzaburou Fukutani ,  Junichi Imuta ,  Akiyoshi Shimizu ,  Takayuki Onogi ,  Seiji Noda ,  Masayuki Sakai ,  Shoji Hiraoka ,  Koji Nakamachi ,  Michio Tsugawa ,  Satoru Miyazoe

    发明人： Takeshi Ohmatsuzawa ,  Fujito Ehara ,  Hideshi Hori ,  Kazuo Toyota ,  Kenzaburou Fukutani ,  Junichi Imuta ,  Akiyoshi Shimizu ,  Takayuki Onogi ,  Seiji Noda ,  Masayuki Sakai ,  Shoji Hiraoka ,  Koji Nakamachi ,  Michio Tsugawa ,  Satoru Miyazoe

    IPC分类号： C08G6378

    CPC分类号： C08G63/85 ,  C08G63/183 ,  C08G63/82 ,  C08G63/88

    摘要： The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst. The catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. The present invention also provides a method to obtain a polyester having a small increase of the acetaldehyde content during the molding. This method comprises bringing a polyester, which is obtained by the use of a titanium compound catalyst and in which the reaction has been completed, into contact with a phosphoric ester aqueous solution or the like having a concentration of not less than 10 ppm in terms of phosphorus atom. The present invention further provides a polyester having excellent transparency and tint and molded products of the polyester such as a blow molded article, a film, a sheet and a fiber. The polyester is obtained by polycondensing an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof in the presence of a catalyst for polyester production which comprises a polycondensation catalyst component comprising a solid titanium compound and a co-catalyst component comprising a magnesium compound. This polyester has a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a weight ratio (Mg/Ti) of magnesium to titanium of not less than 0.01.

    摘要翻译： 本发明提供一种能够生产具有高催化活性的聚酯的聚酯制造催化剂和使用该催化剂生产聚酯的方法。 用于聚酯生产的催化剂包括固体钛化合物，其通过脱水干燥由卤化钛水解得到的水解产物并且具有羟基（OH）与钛（Ti）的摩尔比（OH / Ti）超过钛 0.09以上且低于4.本发明还提供一种在成型时获得乙醛含量增加少的聚酯的方法。 该方法包括使通过使用钛化合物催化剂获得的反应已完成的聚酯与浓度不小于10ppm的磷酸酯水溶液等接触，换算为 磷原子。 本发明还提供一种聚酯，其具有优异的透明度和色调，并且聚酯的成型产品如吹塑制品，薄膜，片材和纤维。 在聚酯制造用催化剂的存在下，通过将芳香族二羧酸或其成酯性衍生物和脂肪族二醇或其成酯衍生物缩聚得到聚酯，该催化剂包括含有固体钛化合物的缩聚催化剂组分和 助催化剂组分包含镁化合物。 该聚酯的钛含量为1〜100ppm，镁含量为1〜200ppm，镁与钛的重量比（Mg / Ti）为0.01以上。

    Catalysts for polyester production, process for producing polyester, and polyester
    4.
    发明授权
    Catalysts for polyester production, process for producing polyester, and polyester 有权

    公开(公告)号：US06649731B2

    公开(公告)日：2003-11-18

    申请号：US10110920

    申请日：2002-04-18

    申请人： Hideshi Hori ,  Fujito Ehara ,  Akiyoshi Shimizu ,  Nobumasa Mukai ,  Shoji Hiraoka

    发明人： Hideshi Hori ,  Fujito Ehara ,  Akiyoshi Shimizu ,  Nobumasa Mukai ,  Shoji Hiraoka

    IPC分类号： C08G6378

    CPC分类号： C08G63/85 ,  C08G63/183 ,  C08G63/82

    摘要： By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti—O bond and which has a maximum solubility in ethylene glycol, as measured when the catalyst is dissolved in ethylene glycol under heating at 150° C., of not less than 3,000 ppm in terms of a titanium atom, a catalyst for polyester preparation, which comprises a titanium-containing solution wherein a contact product of a hydrolyzate of a titanium halide or a hydrolyzate of a titanium alkoxide with a polyhydric alcohol is dissolved in ethylene glycol in an amount of 3,000 to 100,000 ppm in terms of a titanium atom, a process for preparing a polyester using the catalyst, and a polyester prepared by the process. According to the present invention, a polyester can be prepared with a higher catalytic activity as compared with a case of using a conventional catalyst, and a polyester having better transparency, better hue and lower acetaldehyde content can be obtained as compared with a process using an antimony compound as a polycondensation catalyst.

    Process of making polyester pellets
    5.
    发明授权
    Process of making polyester pellets 失效
    制造聚酯粒料的方法

    公开(公告)号：US06613259B2

    公开(公告)日：2003-09-02

    申请号：US09765448

    申请日：2001-01-22

    申请人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    发明人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    IPC分类号： B29B906

    CPC分类号： C08G63/80 ,  C08G63/672

    摘要： A process for preparing polyester pellets which involves blending polyethylene terephthalate and polyethylene isophthalate copolymer before solid state polymerization, the polyethylene isophthalate copolymer being composed of dicarboxylic acid constituent units derived from dicarboxylic acids containing terephthalic acid and isophthalic acid and diol constituent units derived from diols containing ethylene glycol and 1,3-bis(2-hydroxyethoxy)benzene, palletizing the blend and crystallizing the pellets.

    摘要翻译： 一种制备聚酯颗粒的方法，其包括在固态聚合之前共混聚对苯二甲酸乙二醇酯和聚间苯二甲酸乙二醇酯共聚物，聚邻苯二甲酸乙二醇酯共聚物由衍生自含对苯二甲酸和间苯二甲酸的二羧酸的二羧酸构成单元和由含有乙烯的二醇衍生的二醇构成单元 乙二醇和1,3-双（2-羟基乙氧基）苯，将混合物堆垛并使颗粒结晶。

    Polyester pellets
    6.
    发明授权
    Polyester pellets 失效
    聚酯颗粒

    公开(公告)号：US06320014B1

    公开(公告)日：2001-11-20

    申请号：US09256088

    申请日：1999-02-24

    申请人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    发明人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    IPC分类号： C08G6318

    CPC分类号： C08G63/80 ,  C08G63/672

    摘要： Disclosed are polyester pellets made of a polyester which comprises dicarboxylic acid constituent units derived from dicarboxylic acids containing terephthalic acid and isophthalic acid and diol constituent units derived from diols containing ethylene glycol and 1,3-bis(2-hydroxyethoxy)benzene, and which has the properties: constituent units derived from terephthalic acid are 15 to 99.5% by mol and constituent units derived from isophthalic acid are 0.5 to 85% by mol, both based on the total amount of dicarboxylic acid isophthalic acid constituent units (i); constituent units derived from ethylene glycol are 25 to 99.5% by mol and constituent units derived from 1,3-bis(2-hydroxyethoxy)benzene are 0.5 to 75% by mol, both based on the total amount of the diol constituent units (ii); the intrinsic viscosity is in the range of 0.5 to 1.5 dl/g; and the melting point (Tm (°C.)), as measured by a differential scanning calorimeter, satisfies the formula [1/527−0.0017·ln(1−(mI+mB)/200)]−1−273

    摘要翻译： 公开了由聚酯制成的聚酯粒料，其包含衍生自含有对苯二甲酸和间苯二甲酸的二羧酸的二羧酸结构单元和源自含有乙二醇和1,3-双（2-羟基乙氧基）苯的二醇的二醇结构单元， 性质：由对苯二甲酸衍生的结构单元为15〜99.5摩尔％，来自间苯二甲酸的构成单元为二烷基间苯二甲酸成分单元（i）的总量为0.5〜85摩尔％。 衍生自乙二醇的构成单元为25〜99.5摩尔％，来自1,3-双（2-羟基乙氧基）苯的构成单元为0.5〜75摩尔％，均基于二醇构成单元（ii ）; 特性粘度在0.5〜1.5dl / g的范围内; 通过差示扫描量热计测定的熔点（Tm（℃））满足公式[1 / 527-0.0017.ln（1-（mI + mB）/ 200）]〜1-273

    Process for preparing aliphatic polyester
    10.
    发明授权
    Process for preparing aliphatic polyester 有权
    制备脂肪族聚酯的方法

    公开(公告)号：US06417266B1

    公开(公告)日：2002-07-09

    申请号：US09786763

    申请日：2001-03-09

    申请人： Yuji Terado ,  Hiroshi Suizu ,  Masatoshi Takagi ,  Masanobu Ajioka ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hiroyuki Suzuki ,  Hiroshi Kimura ,  Shinji Ogawa ,  Yasushi Kotaki

    发明人： Yuji Terado ,  Hiroshi Suizu ,  Masatoshi Takagi ,  Masanobu Ajioka ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hiroyuki Suzuki ,  Hiroshi Kimura ,  Shinji Ogawa ,  Yasushi Kotaki

    IPC分类号： C08K541

    CPC分类号： C08G63/80 ,  C08G63/16 ,  C08G63/87

    摘要： A process for producing aliphatic polyester wherein a crystallized aliphatic polyester prepolymer formed from an aliphatic dihydric alcohol and an aliphatic dicarboxylic acid and having a weight-average molecular weight of 2,000 to 100,000 is caused to undergo solid-phase polymerization in the presence of a volatile catalyst to make an aliphatic polyester having a weight-average molecular weight of 50,000 to 1,000,000. This process is more efficient than any prior process calling for a complicated step for catalyst removal, since it enables the removal of the catalyst from the reaction system during and/or after solid-phase polymerization. The polyester is comparable in stability to any aliphatic polyester having any catalyst removed therefrom.

    摘要翻译： 一种脂肪族聚酯的制造方法，其特征在于，在挥发性催化剂的存在下，使由脂肪族二元醇和脂肪族二羧酸形成的重均分子量为2,000〜100,000的结晶脂肪族聚酯预聚物进行固相聚合 得到重均分子量为50,000〜1,000,000的脂肪族聚酯。 该方法比任何先前的方法要求复杂的催化剂去除步骤更有效，因为其能够在固相聚合期间和/或之后从反应体系中除去催化剂。 聚酯与其中除去任何催化剂的任何脂族聚酯的稳定性相当。