Method for Preparing High Shrinkage Rate PolytrimethyleneTerephthalate

    公开(公告)号:US20120316292A1

    公开(公告)日:2012-12-13

    申请号:US13579938

    申请日:2011-02-23

    申请人: Shuchang Bian

    发明人: Shuchang Bian

    IPC分类号: C08G63/85 C08L67/03 C08G63/86

    摘要: A method for preparing high shrinkage PTT copolyester, comprising: adding starting raw materials into a reaction kettle and adding an esterification catalyst to carry out esterification reaction at 220° C.˜260° C. under 0.05˜0.30 MPa and completing the reaction when there being no water produced: adding polymerization catalyst into the reaction system and carrying out the polymerization reaction at 240° C.˜280°C. to get polytrimethylene terephthalate. The starting raw materials consists of 1,3-propylene glycol, terephtalic acid, a third monomer, a fourth monomer and a fifth monomer. The third monomer is selected from the group consisting of non-para aromatic dicarboxylic acid, 1,4-cyclohexane diformic acid and glutaric acid; The fourth monomer is selected from the group consisting of C3-C10 branched aliphatic dihydric alcohol, 1,4-cyclohexanedimethanol, diethylene glycol and triethyleneglycol; The fifth monomer is aliphatic polyalcohols which has carbon number between 3 and 10 and hydroxyl number per molecule is more than or equal to 3, or trimellitic anhydride, amount of the 1,3-propylene glycol, terephthalic acid, third monomer, fourth monomer and fifth monomer are such used in a molar ratio of carboxyl to hydroxyl is 1:1.16˜-1.85, wherein the amount of the third monomer used is 5%-10.5% of the total weight of the starting raw materials, the amount of the fourth monomer used is 0.05%-1.0% of the total weight of the starting raw materials, and the amount of the fifth monomer used is 50 ppm-600 ppm, based on the total weight of the starting raw materials. Polytrimethylene terephthalate prepared by the invention shows good spinning behaviour, of which the crystallization speed is noticeably lower than that of conventional polytrimethylene terephthalate, thus, fibers made of them has high boiling water shrinkage rate and ideal shrink property.

    MANUFACTURING METHOD OF LACTIDE FROM LACTIC ACID
    63.
    发明申请
    MANUFACTURING METHOD OF LACTIDE FROM LACTIC ACID 审中-公开
    乳酸乳酸的制备方法

    公开(公告)号:US20120302724A1

    公开(公告)日:2012-11-29

    申请号:US13181808

    申请日:2011-07-13

    IPC分类号: C08G63/85 C07D319/12

    CPC分类号: C07D319/12

    摘要: The present invention provides a method of producing D-type lactide from liquid D-type lactic acid, and a method for producing D-type polylactic acid having a weight average molecular weight of about 50,000˜20,000 g/mol from the produced D-type lactide. The method of the present invention is advantageous in that D-type lactide can be obtained at a high yield by a simple method, compared to the conventional production methods. Consequently, production cost of D-type polylactic acid that is finally obtained from D-type lactide can be reduced.

    摘要翻译: 本发明提供了从液体D型乳酸生产D-型丙交酯的方法,以及从制造的D型乳酸生产重均分子量为约50,000〜200,000g / mol的D型聚乳酸的方法 丙交酯 本发明的方法的优点在于,与常规的制造方法相比,通过简单的方法可以高收率地获得D型丙交酯。 因此,可以减少最终从D型丙交酯获得的D型聚乳酸的生产成本。

    HIGH MOLECULAR WEIGHT POLYESTER POLYMERS WITH REDUCED ACETALDEHYDE
    65.
    发明申请
    HIGH MOLECULAR WEIGHT POLYESTER POLYMERS WITH REDUCED ACETALDEHYDE 有权
    具有降低乙醛的高分子量聚酯聚合物

    公开(公告)号:US20120220735A1

    公开(公告)日:2012-08-30

    申请号:US13468687

    申请日:2012-05-10

    IPC分类号: C08G63/85

    摘要: Polyester compositions, especially polyethylene terephthalate homopolymer and copolymers, are disclosed containing titanium catalysts and catalyst deactivator added late in the manufacturing processing having reduced acetaldehyde generation rates. The polyester compositions are low in free acetaldehyde, making them suitable for fabrication into beverage containers for relatively tasteless beverages such as bottle water. Furthermore, the polyesters are polymerized to a high inherent viscosity in reduced processing time, without the necessity of further polymerization in the solid state, and in the absence of acetaldehyde scavengers leading to polyester polymers having reduced color.

    摘要翻译: 公开了聚酯组合物,特别是聚对苯二甲酸乙二醇酯均聚物和共聚物,其中含有钛催化剂和催化剂失活剂,在制造加工后期加入乙醛生成速率降低。 聚酯组合物的游离乙醛含量低,使其适合制造成饮料容器,用于相对无味的饮料如瓶装水。 此外,聚合物在缩短处理时间内聚合成高特性粘度,而不需要在固态下进一步聚合,而在没有乙醛清除剂导致聚酯聚合物具有降低的颜色的情况下。

    Polyester resin composition, process for producing the same and molding thereof
    66.
    发明授权
    Polyester resin composition, process for producing the same and molding thereof 有权
    聚酯树脂组合物,其制造方法和成型方法

    公开(公告)号:US08143356B2

    公开(公告)日:2012-03-27

    申请号:US11577596

    申请日:2005-12-12

    IPC分类号: C08G63/85

    摘要: A method for producing a polyester resin composition C), which comprises melt-kneading a polyester resin (A) which satisfies the following formulae (1), (2) and (3) and a polyester resin (B) which satisfies the following formula (4): P1≧10  (1) 0.1≦Ge1≦1.5  (2) 0.001≦Ge1/P1≦0.15  (3) 0≦P2/Ti1≦80  (4) provided that in the formulae (1), (2) and (3), P1 is the content (mol) of phosphorus atoms and Ge1 is the content (mol) of germanium atoms, per ton of the polyester resin (A), and in the formula (4), P2 is the content (mol) of phosphorus atoms and Ti1 is the content (mol) of titanium atoms, per ton of the polyester resin (B). A polyester resin composition (C) obtained by the method, and a molded product such as a film made from such a composition are also provided.

    摘要翻译: 一种聚酯树脂组合物C)的制造方法,其包括熔融捏合满足下式(1),(2)和(3)的聚酯树脂(A)和满足下式的聚酯树脂(B) (4)式中:P1≥10(1)0.1≦̸ Ge1≦̸ 1.5(2)0.001≦̸ Ge1 / P1≦̸ 0.15(3)0≦̸ P2 / Ti1& 2)和(3)中,P1是磷原子的含量(mol),Ge1是每吨聚酯树脂(A)中锗原子的含量(mol),在式(4)中,P2是 磷原子的含量(mol),Ti1是每吨聚酯树脂(B)的钛原子的含量(mol)。 还提供了通过该方法获得的聚酯树脂组合物(C)和由这种组合物制成的膜的成型产品。

    CATALYST COMPOUND FOR PREPARING POLYESTER RESIN, POLYESTER RESIN PREPARED USING THE COMPOUND AND CONTAINER MOLDED USING THE RESIN
    67.
    发明申请
    CATALYST COMPOUND FOR PREPARING POLYESTER RESIN, POLYESTER RESIN PREPARED USING THE COMPOUND AND CONTAINER MOLDED USING THE RESIN 审中-公开
    用于制备聚酯树脂的催化剂化合物,使用化合物和使用树脂成型的容器制备的聚酯树脂

    公开(公告)号:US20120058287A1

    公开(公告)日:2012-03-08

    申请号:US13216930

    申请日:2011-08-24

    摘要: Disclosed is a catalyst compound for preparing a polyester resin. Provided are a novel catalyst compound for preparing a polyester resin, a polyester resin prepared using the compound and a container molded using the resin. The polyester resin is nontoxic, is environmentally friendly and exhibits high intrinsic viscosity and superior colors L and b, thus solving reaction speed during solid state polymerization and a yellowing phenomenon, problems associated with use of conventional titanium catalysts.

    摘要翻译: 公开了一种用于制备聚酯树脂的催化剂化合物。 提供了一种用于制备聚酯树脂的新型催化剂化合物,使用该化合物制备的聚酯树脂和使用该树脂模塑的容器。 聚酯树脂无毒,环保,表现出高的特性粘度和优异的颜色L和b,从而解决了固态聚合反应中的反应速度和黄化现象,与常规钛催化剂相关的问题。

    Solid State Polymerization Process for Polyester with Phosphinic Acid Compounds
    68.
    发明申请
    Solid State Polymerization Process for Polyester with Phosphinic Acid Compounds 失效
    聚酯与膦酸化合物的固态聚合方法

    公开(公告)号:US20110306710A1

    公开(公告)日:2011-12-15

    申请号:US13214751

    申请日:2011-08-22

    CPC分类号: C08G63/80 C08G63/85 C08G63/87

    摘要: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

    摘要翻译: 公开了一种提高金属催化聚酯的固态聚合(SSP)速率的方法。 该方法包括在第一步骤中,在合适的温度和压力下使二羧酸或C 1 -C 4二羧酸二酯与二醇反应以进行酯化或酯交换以制备预缩合物,并且在第二步中,使预缩合物与 合适的温度和压力以制备高分子量聚酯,并且在第三步骤中,在合适的温度和压力的SSP条件下进一步提高聚酯的分子量和粘度,其中在第一步中加入金属催化剂或在 作为反应催化剂的第二步骤,其中在第一步骤,第二步骤或第三步骤之前加入某些次膦酸化合物。 聚酯产品在熔融加工步骤中表现出低醛形成以及优异的颜色。

    POLYESTER POLYMERIZATION CATALYST AND METHOD FOR PRODUCING POLYESTER USING THE SAME
    69.
    发明申请
    POLYESTER POLYMERIZATION CATALYST AND METHOD FOR PRODUCING POLYESTER USING THE SAME 有权
    聚酯聚合催化剂及使用该聚合物的聚酯的制造方法

    公开(公告)号:US20110178265A1

    公开(公告)日:2011-07-21

    申请号:US13121350

    申请日:2009-08-18

    IPC分类号: C08G63/85 C07F7/28

    CPC分类号: D01F6/62 C08G63/183 C08G63/85

    摘要: Provided are a polyester polymerization catalyst with which the generation of foreign materials caused by the catalyst or mold pollution at the time of molding are reduced and polyesters having remarkably superior thermal stability and color tone can be obtained.Provided is a polyester polymerization catalyst produced by the reaction of a titanium compound and a mannitol in a molar ratio of titanium atom to mannitol of from 1:1 to 1:3. A method for producing a polyester employs the polyester polymerization catalyst.

    摘要翻译: 提供一种聚酯聚合催化剂,其在模塑时由催化剂或模具污染引起的异物的产生减少,并且可以获得具有非常优异的热稳定性和色调的聚酯。 提供了通过钛化合物和甘露醇与钛原子与甘露醇的摩尔比为1:1至1:3的反应制备的聚酯聚合催化剂。 聚酯的制造方法采用聚酯聚合催化剂。

    Novel Catalysts for the Polymerisation of Carbonyl-Containing or Cyclic Monomers
    70.
    发明申请
    Novel Catalysts for the Polymerisation of Carbonyl-Containing or Cyclic Monomers 审中-公开
    用于聚合含羰基或环状单体的新型催化剂

    公开(公告)号:US20090198038A1

    公开(公告)日:2009-08-06

    申请号:US12305789

    申请日:2007-06-21

    申请人: Polly Arnold

    发明人: Polly Arnold

    摘要: The present invention relates to metal/organic complexes of Formula (I), (II), (III), (IV), (V) and (VI) that are useful as catalysts for the polymerisation of carbonyl-containing or cyclic monomers. Typical polymerisation reactions are, for example, those of lactides. R is independently selected at each occurrence from the group comprising: hydrogen, hydrocarbyl and substituted hydrocarbyl, M is a Lewis-acidic metal, and, if present, X is any suitable counter ion.

    摘要翻译: 本发明涉及可用作聚合含羰基或环状单体的催化剂的式(I),(II),(III),(IV),(V)和(VI)的金属/有机络合物。 典型的聚合反应是例如丙交酯的反应。 R在每次出现时独立地选自氢,烃基和取代的烃基,M是路易斯酸性金属,如果存在,X是任何合适的抗衡离子。