公开(公告)号：US06559272B1

公开(公告)日：2003-05-06

申请号：US10057386

申请日：2002-01-24

申请人： Jae-Young Jeon ,  Yoon-Hee Hong ,  Sung-Gi Kim

发明人： Jae-Young Jeon ,  Yoon-Hee Hong ,  Sung-Gi Kim

IPC分类号： C08G6378

CPC分类号： C08G63/85 ,  C08G63/181 ,  C08K5/49

摘要： Disclosed is a method for preparing polyester resins copolymerized with glycol for modification such as 1,4-cyclohexanedimethanol, in which the content of said glycol ingredient for modification ranges from 20 to 80 mol % of the total glycol content. Dicarboxylic acid such as terephthalic acid is esterified with ethylene glycol and said glycol for modification. The esterification product is subjected to polycondensation in the presence of a titanium dioxide/silicon dioxide coprecipitate catalyst, said catalyst being in the form of 4% or less strength by weight suspension in glycol. The copolyester prepared as above shows excellent transparency and color properties in addition to being produced at high efficiency.

摘要翻译： 公开了一种用于制备与乙二醇共聚的聚酯树脂的方法，例如1,4-环己烷二甲醇，其中所述改性二醇成分的含量为总二醇含量的20至80摩尔％。 二羧酸如对苯二甲酸用乙二醇酯化，所述二醇用于改性。 酯化产物在二氧化钛/二氧化硅共沉淀催化剂存在下进行缩聚，所述催化剂为乙二醇悬浮液中4重量％以下的重量。 如上制备的共聚聚酯除了高效生产之外还显示出优异的透明性和着色性。

公开(公告)号：US06479618B1

公开(公告)日：2002-11-12

申请号：US09857633

申请日：2001-06-07

申请人： Anja Vonderhagen

发明人： Anja Vonderhagen

IPC分类号： C08G6378

CPC分类号： C12P7/62

摘要： Processes for preparing linear polyesters by reacting a dicarboxylic acid having from 2 to 10 carbon atoms, a polyol having from 2 to 15 carbon atoms, a low-boiling primary alcohol and a catalytic-effective amount of a lipase, wherein the reaction mixture is free of additional solvents; are described. The use of such linear polyesters in cosmetics is also described.

摘要翻译： 通过使具有2至10个碳原子的二羧酸，具有2至15个碳原子的多元醇，低沸点伯醇和催化有效量的脂肪酶反应制备线性聚酯的方法，其中反应混合物是游离的 的附加溶剂; 被描述。 也描述了这种线性聚酯在化妆品中的用途。

公开(公告)号：US06437088B1

公开(公告)日：2002-08-20

申请号：US09929436

申请日：2001-08-14

申请人： Jiwen F. Duan

发明人： Jiwen F. Duan

IPC分类号： C08G6378

CPC分类号： C08G63/82 ,  C08G63/85

摘要： A process for producing a polyester. The process comprises polymerizing a polymerization mixture comprising (i) a carbonyl compound or an oligomer of a carbonyl compound and (ii) a glycol, in the presence of a titanium catalyst composition, to produce the polyester, wherein a coated titanium dioxide comprising a titanium dioxide and a coat is added before or during the polymerizing.

摘要翻译： 聚酯的制造方法。 该方法包括在钛催化剂组合物存在下聚合包含（i）羰基化合物或羰基化合物的低聚物的聚合混合物和（ii）二醇以制备聚酯，其中包含钛 在聚合之前或过程中加入一层涂层。

公开(公告)号：US06376642B1

公开(公告)日：2002-04-23

申请号：US09415165

申请日：1999-10-08

申请人： Kevin Charles Cannon ,  Sri Ram Seshadri

发明人： Kevin Charles Cannon ,  Sri Ram Seshadri

IPC分类号： C08G6378

CPC分类号： C08G63/85

摘要： This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester. The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate. The improved process produces a polyester of improved color versus other titanyl oxalate catalysts and a novel polyester without the presence of antimony.

摘要翻译： 本发明涉及一种制造聚酯的方法，特别是使用草酸氧钛作为这种反应的催化剂，为所得聚酯提供具有优异颜色特性的快速反应。 本发明提供通过聚酯成型反应物的缩聚制备聚酯的改进方法，其中改进包括利用作为缩聚催化剂的草酸氧钛锂。 改进的方法产生与其它氧化钛草酸酯催化剂相比颜色改进的聚酯和不存在锑的新型聚酯。

公开(公告)号：US06281325B1

公开(公告)日：2001-08-28

申请号：US09644008

申请日：2000-08-23

申请人： Joseph Varapadavil Kurian ,  Yuanfeng Liang

发明人： Joseph Varapadavil Kurian ,  Yuanfeng Liang

IPC分类号： C08G6378

CPC分类号： C08G63/183 ,  C08G63/78 ,  C08G63/85

摘要： In one embodiment, the invention is a process for the preparation of poly(trimethylene terephthalate) comprising (a) contacting terephthalic acid with 1,3-propanediol in the presence of an organic tin catalyst to form a bis(3-hydroxypropyl)terephthalate monomer; and (b) polymerizing said monomer in the presence of organic titanate polycondensation catalyst to obtain the poly(trimethylene terephthalate). In another embodiment, the invention is a process for the preparation of poly(trimethylene terephthalate) containing less than 1.6 mol % of DPG said process comprising contacting terephthalic acid with a 1.6 to 1 to 2:1 molar amount of 1,3-propanediol in the presence of 20 to 120 ppm (as tin), by weight of the poly(trimethylene terephthalate), of a organic tin catalyst, to form a bis(3-hydroxypropyl)terephthalate monomer and polymerizing said monomer to obtain the poly(trimethylene terephthalate). The invention is also directed to poly(trimethylene terephthalate) produced by the processes.

摘要翻译： 在一个实施方案中，本发明是制备聚（对苯二甲酸丙二醇酯）的方法，其包括（a）在有机锡催化剂存在下使对苯二甲酸与1,3-丙二醇接触以形成双（3-羟丙基）对苯二甲酸酯单体 ; 和（b）在有机钛酸酯缩聚催化剂的存在下聚合所述单体以获得聚（对苯二甲酸丙二醇酯）。 在另一个实施方案中，本发明是制备含有小于1.6mol％DPG的聚（对苯二甲酸丙二醇酯）的方法，所述方法包括使对苯二甲酸与1.6至1至2:1摩尔量的1,3-丙二醇接触 以聚对苯二甲酸丙二醇酯为原料的20〜120ppm（以锡计）的有机锡催化剂的存在形成双（3-羟丙基）对苯二酸酯单体，并使所述单体聚合，得到聚（对苯二甲酸丙二醇酯 ）。 本发明还涉及由该方法生产的聚（对苯二甲酸丙二醇酯）。

公开(公告)号：US06262185B1

公开(公告)日：2001-07-17

申请号：US09529187

申请日：2000-04-10

申请人： Thomas Heitz ,  Peter Braune ,  Herbert Fisch ,  Erich Pellkofer ,  Georg Schneider

发明人： Thomas Heitz ,  Peter Braune ,  Herbert Fisch ,  Erich Pellkofer ,  Georg Schneider

IPC分类号： C08G6378

CPC分类号： C08J5/00 ,  C08G63/78 ,  C08J2367/00 ,  C08L67/02 ,  G02B6/443 ,  Y10T428/31786

摘要： The invention relates to the use of thermoplastic polyester molding compounds, containing A) 80 to 100 wt. % of a polyalkylene arylate, especially polybutyleneterephthalate, with a half-width of crystallization heat releases of ≦5° C. and B) 0 to 20 wt. % of other additives, the weight percentages of constituents A) and B) adding up to 100%, for producing molded bodies by blow-molding, profile extrusion and/or pipe extrusion. A preferred use for the inventive molding compounds is the production of light guide sheathing. The invention also relates to a 3-stage method for producing the polyesters as follows: a) esterification or re-esterification of an aromatic dicarboxylic acid or its derivative and a glycol; b) precondensation; and c) polycondensation to a viscosity number of at least 158 ml/g. The reaction is carried out in at least 2 temperature zones in stages a) and b).

摘要翻译： 本发明涉及热塑性聚酯模塑料的应用，其中A：80至100wt。 ％的聚亚烷基芳基化物，特别是聚对苯二甲酸丁二醇酯，其半结晶热释放为≤5℃，B）为0-20重量％。 其他添加剂的百分比，组分A）的重量百分数和B）加入高达100％，用于通过吹塑，型材挤出和/或管挤出生产成型体。 本发明的模塑料的优选用途是制造导光护套。 本发明还涉及以下三种制备聚酯的方法：a）芳族二羧酸或其衍生物和二醇的酯化或再酯化; b）预处理; 和c）至少158ml / g的粘度数的缩聚。 反应在a）和b）阶段的至少2个温度区进行。

公开(公告)号：US06245879B1

公开(公告)日：2001-06-12

申请号：US09239900

申请日：1999-01-29

申请人： Donald Ross Kelsey ,  Betty Marrou Scardino ,  Steven Charles Zronek

发明人： Donald Ross Kelsey ,  Betty Marrou Scardino ,  Steven Charles Zronek

IPC分类号： C08G6378

CPC分类号： C08G63/84 ,  C07C29/88 ,  C08G63/183 ,  C08G63/78 ,  C07C31/205

摘要： A process for preparing polytrimethylene terephthalate in which a carbonyl-containing 1,3-propanediol stream is purified for reuse of the 1,3-propanediol. The process involves reacting, under condensation polymerization conditions, terephthalic acid and a molar excess of 1,3-propanediol, with vacuum distillation and condensation of a major portion of the unreacted 1,3-propanediol. To this condensed stream is added a sufficient amount of base to raise the pH to a value greater than 7, and from this base-containing condensate the 1,3-propanediol is distilled and recycled to the polymerization reaction.

摘要翻译： 制备聚对苯二甲酸丙二醇酯的方法，其中将含羰基的1,3-丙二醇流纯化用于1,3-丙二醇的再利用。 该方法包括在缩聚条件下使对苯二甲酸和摩尔过量的1,3-丙二醇反应，同时减压蒸馏并将大部分未反应的1,3-丙二醇缩合。 向该冷凝流中加入足量的碱以将pH升高至大于7的值，并且从该含碱的缩合物中将1,3-丙二醇蒸馏并再循环至聚合反应。

公开(公告)号：US06762276B2

公开(公告)日：2004-07-13

申请号：US10083944

申请日：2002-02-27

申请人： Charles Edwan Sumner, Jr. ,  Bruce LeRoy Gustafson ,  Robert Lin

发明人： Charles Edwan Sumner, Jr. ,  Bruce LeRoy Gustafson ,  Robert Lin

IPC分类号： C08G6378

CPC分类号： C08G63/199 ,  B01J23/40 ,  B01J23/892 ,  C08G63/916

摘要： Disclosed is a process of hydrogenating a polyester oligomer containing terephthalic acid residues wherein terephthalic acid residues are converted to residues of 1,4-cyclohexanedicarboxylic acid. Also disclosed is a process for the preparation of polyesters containing 1,4-cyclohexanedicarboxylic acid residues by first hydrogenating a polyester oligomer containing terephthalic acid residues and then reacting the resulting oligomer with one or more polyester-forming reactants to produce a higher molecular weight polyester.

摘要翻译： 公开了将含有对苯二甲酸残基的聚酯低聚物氢化的方法，其中将对苯二甲酸残基转化成1,4-环己烷二羧酸的残基。 还公开了通过首先氢化含有对苯二甲酸残基的聚酯低聚物，然后使得到的低聚物与一种或多种形成聚酯的反应物反应以制备较高分子量聚酯来制备含有1,4-环己烷二羧酸残基的聚酯的方法。

公开(公告)号：US06710158B2

公开(公告)日：2004-03-23

申请号：US10177932

申请日：2002-06-21

申请人： Walter Lee Edwards ,  Robert Joseph Schiavone ,  Carl Steven Nichols ,  Tony Clifford Moore

发明人： Walter Lee Edwards ,  Robert Joseph Schiavone ,  Carl Steven Nichols ,  Tony Clifford Moore

IPC分类号： C08G6378

CPC分类号： C08K3/26 ,  B29K2105/0002 ,  C08G63/80 ,  C08G63/91 ,  C08G64/20 ,  C08G64/42 ,  C08G69/04 ,  C08G69/48 ,  C08J3/226 ,  C08K3/34 ,  Y10T428/1352 ,  Y10T428/2991 ,  Y10T428/2995 ,  Y10T428/2998 ,  C08L67/02

摘要： The invention is a polyester resin that includes between about 20 and 200 ppm of an inert particulate additive, preferably selected from the group consisting of surface-modified talc and surface-modified calcium carbonate. The invention is also a method of making the polyester resin, which is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.

摘要翻译： 本发明是一种聚酯树脂，其包含约20至200ppm的惰性颗粒添加剂，优选选自表面改性滑石和表面改性的碳酸钙。 本发明也是制造能够形成具有降低的摩擦系数的低雾度高透明度瓶的聚酯树脂的方法。

公开(公告)号：US06667383B2

公开(公告)日：2003-12-23

申请号：US10263716

申请日：2002-10-04

申请人： Yoshihiro Fujimori ,  Masahiro Nukui ,  Yutaka Yatsugi ,  Kenichi Matsui

发明人： Yoshihiro Fujimori ,  Masahiro Nukui ,  Yutaka Yatsugi ,  Kenichi Matsui

IPC分类号： C08G6378

CPC分类号： C08G63/85 ,  C08G63/183 ,  C08G63/82 ,  C08G63/826 ,  C08G63/83 ,  C08G63/87

摘要： A polyester resin is prepared by polycondensing a dicarboxylic acid component containing terephthalic acid or its ester-forming derivative as the main component, and a diol component containing ethylene glycol as the main component in the presence of (1) a compound of at least one member selected from the group consisting of titanium group elements in Group 4A of the Periodic Table, via an esterification reaction or an ester exchange reaction, wherein the content of copolymerized components other than the terephthalic acid component and the ethylene glycol component, is not more than 4 mole % based on the total dicarboxylic acid component, and in a molded product with a thickness of 3.5 mm injection-molded at 280° C., the difference between the absorbance at a wavelength of 395 nm and the absorbance at a wavelength of 800 nm is at least 0.08, and the difference between the absorbance at a wavelength of 500 nm and the absorbance at a wavelength of 800 nm is at most 0.05.

摘要翻译： 在（1）至少一种成分的化合物的存在下，将含有对苯二甲酸或其成酯衍生物的二羧酸成分作为主要成分，以乙二醇为主要成分的二醇成分进行缩聚， 通过酯化反应或酯交换反应选自周期表4A族中的钛族元素，其中除对苯二甲酸成分和乙二醇成分以外的共聚成分的含量为4以下 摩尔％，在280℃注射成型的厚度为3.5mm的成型品中，波长395nm处的吸光度与波长800nm处的吸光度之差 至少为0.08，波长500nm处的吸光度与波长800nm处的吸光度之差为0.05以下。