Catalysts for polyester production, process for producing polyester, and polyester

    公开(公告)号:US06649731B2

    公开(公告)日:2003-11-18

    申请号:US10110920

    申请日:2002-04-18

    IPC分类号: C08G6378

    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.

    Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester
    3.
    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

    IPC分类号: C08G6378

    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。

    Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins
    4.
    发明授权
    Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins 有权
    用于聚酯生产的聚酯树脂和催化剂,用催化剂生产聚酯树脂的方法,用催化剂获得的聚酯树脂和包含聚酯树脂的中空成型容器

    公开(公告)号:US07300998B2

    公开(公告)日:2007-11-27

    申请号:US10504529

    申请日:2003-02-13

    IPC分类号: C08G63/02

    摘要: The object of the present invention is to provide a high quality polyester resin having high productivity, stability and safety, a catalyst for polyester production with high catalytic activity, a method for producing the polyester resin with the catalyst, a polyester resin obtained with the catalyst, and a hollow molded container having the polyester resin. The polyester resin of the present invention satisfies specific parameters regarding polymerizability, stability, and metal content. The catalyst for polyester production satisfies specific parameters. The catalyst particularly preferably has: (a) a solid titanium-containing compound which has a maximum solubility in ethylene glycol of 1,000 ppm or more in terms of converted titanium amount when dissolved in ethylene glycol with heating at 150° C., and which has titanium, oxygen, carbon, and hydrogen, and optionally an alkali metal, and has a Ti—O—C bond; and (b) an alkali metal compound, the molar ratio of the alkali metal atoms to the titanium atom in the catalyst being in the range of 20/1 to 0.1/1.

    摘要翻译: 本发明的目的是提供一种具有高生产率,稳定性和安全性的高品质聚酯树脂,具有高催化活性的聚酯生产催化剂,用催化剂生产聚酯树脂的方法,用催化剂得到的聚酯树脂 和具有聚酯树脂的中空成型容器。 本发明的聚酯树脂满足关于聚合性,稳定性和金属含量的具体参数。 聚酯生产催化剂满足具体参数。 催化剂特别优选具有:(a)当在150℃下加热溶解在乙二醇中时,以乙二醇的最大溶解度为1000ppm以上的钛的固体含量的化合物, 钛,氧,碳和氢,以及任选的碱金属,并具有Ti-OC键; 和(b)碱金属化合物,催化剂中碱金属原子与钛原子的摩尔比在20/1至0.1 / 1的范围内。

    Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins
    6.
    发明申请
    Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins 有权
    用于聚酯生产的聚酯树脂和催化剂,用催化剂生产聚酯树脂的方法,用催化剂获得的聚酯树脂和包含聚酯树脂的中空成型容器

    公开(公告)号:US20050107576A1

    公开(公告)日:2005-05-19

    申请号:US10504529

    申请日:2003-02-13

    摘要: The object of the present invention is to provide a high quality polyester resin having high productivity, stability and safety, a catalyst for polyester production with high catalytic activity, a method for producing the polyester resin with the catalyst, a polyester resin obtained with the catalyst, and a hollow molded container comprising the polyester resin. The polyester resin of the present invention satisfies specific parameters regarding polymerizability, stability, and metal content. The catalyst for polyester production satisfies specific parameters. The catalyst particularly preferably comprises: (a) a solid titanium-containing compound which has a maximum solubility in ethylene glycol of 1,000 ppm or more in terms of converted titanium amount when dissolved in ethylene glycol with heating at 150° C., and which comprises titanium, oxygen, carbon, and hydrogen, and optionally alkali metal, and has a Ti—O—C bond; and (b) an alkali metal compound, the molar ratio of the alkali metal atoms to the titanium atom in the catalyst being in the range of 20/1 to 0.1/1.

    摘要翻译: 本发明的目的是提供一种具有高生产率,稳定性和安全性的高品质聚酯树脂,具有高催化活性的聚酯生产催化剂,用催化剂生产聚酯树脂的方法,用催化剂得到的聚酯树脂 和包含聚酯树脂的中空成型容器。 本发明的聚酯树脂满足关于聚合性,稳定性和金属含量的具体参数。 聚酯生产催化剂满足具体参数。 催化剂特别优选包括:(a)当在150℃下加热溶解在乙二醇中时,以乙二醇的最大溶解度为1000ppm以上的固体含钛化合物以转化的钛量计,其包含 钛,氧,碳和氢,以及任选的碱金属,并具有Ti-OC键; 和(b)碱金属化合物,催化剂中碱金属原子与钛原子的摩尔比在20/1至0.1 / 1的范围内。