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1.发明公开
公开(公告)号：EP0932636A1
公开(公告)日：1999-08-04
申请号：EP97910982.0
申请日：1997-10-16
发明人： BOWERS, David, Taylor , CLIFFTON, Michael, Duane , KNIGHT, Joseph, Franklin , QUILLEN, Donna, Rice
IPC分类号： C08G63
CPC分类号： C08G63/183 , C08G63/189 , C08G63/78
摘要： The application relates to a process for producing a high molecular weight polyester having less than about 0,5 weight % diethylene glycol comprising adding at least one carbonate compound to the ester exchange reaction product produced from reaction of a glycol component comprising ethylene glycol and an ester component comprising dimethylterephthalate, dimethylnaphthalenedicarboxylate and mixtures thereof wherein said reaction product is formed without a Ti catalyst.
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公开(公告)号：EP1569887A1
公开(公告)日：2005-09-07
申请号：EP03790245.9
申请日：2003-12-03
发明人： SUMNER, Charles, Edwan, Jr. , BOWERS, David, Taylor , GIBSON, Philip, Edward , LIN, Robert , ARNOLD, Ernest, William, III , FUGATE, Eric, Jackson , STEVENSON, George, M. , MCCLANAHAN, Wayne , CARRELL, Harry, Lee
IPC分类号： C07C51/47 , C07C63/26 , C07C51/265
摘要： Disclosed is a process to produce a purified carboxylic acid product. The process comprises removing impurities from a crude carboxylic acid slurry in a solid-liquid displacement zone to form a slurry product. The slurry product if further treated in a staged oxidation zone and a crystallization zone to from a crystallized product. The crystallized product is further cooled in a cooling zone and subsequently filtered and dried in a filtration and drying zone. The process produces purified carboxylic acid product having good color and low impurity levels without the use of purification steps like hydrogenation.
摘要翻译： 公开了一种生产纯化羧酸产品的方法。 该方法包括从固液置换区中的粗制羧酸淤浆中除去杂质以形成淤浆产物。 如果在分级氧化区和结晶区中进一步处理浆料产物以从结晶产物中除去。 结晶产物在冷却区进一步冷却，随后过滤并在过滤和干燥区中干燥。 该方法生产具有良好颜色和低杂质水平的纯化羧酸产物，而不使用氢化等纯化步骤。
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公开(公告)号：EP1313797A2
公开(公告)日：2003-05-28
申请号：EP01966102.4
申请日：2001-08-24
发明人： GEORGE, Scott, Ellery , FLEENOR, Coralie, McKenna , BOWERS, David, Taylor , MILLER, Richard, Anthony , THOMPSON, Ricky
CPC分类号： C08G64/40 , C08G63/88 , C08G69/44 , C08J3/124 , Y10T428/2998
摘要： The present invention provides an article of manufacture having a coating or is otherwise surrounded in large measure by a second polymer which has non-blocking characteristics. In a preferred embodiment, the article possesses a core polymer which has a Tg of less than 25 °C which is coated with or otherwise surrounded by a second polymer which has a Tg of greater than 25 °C, but less than 230 °C. Further, preferred core polymers have a number average molecular weight of about 3000 to about 100,000. A further feature of the articles of the present invention is that when heated to temperatures of about 100 to 300 °C, they undergo an ester exchange reaction to provide a substantially homogeneous polymer product useful in hot melt adhesive applications.
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公开(公告)号：EP1313797B1
公开(公告)日：2005-12-28
申请号：EP01966102.4
申请日：2001-08-24
发明人： GEORGE, Scott, Ellery , FLEENOR, Coralie, McKenna , BOWERS, David, Taylor , MILLER, Richard, Anthony , THOMPSON, Ricky
CPC分类号： C08G64/40 , C08G63/88 , C08G69/44 , C08J3/124 , Y10T428/2998
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5.发明公开A PROCESS FOR THE PRODUCTION OF CLEAR COPOLYESTERS OF TEREPHTHALIC ACID, NAPHTHALENEDICARBOXYLIC ACID AND ETHYLENE GLYCOL 失效用于生产的对苯二甲酸，萘二甲酸和乙二醇的共聚酯CLEAR
公开(公告)号：EP0975685A1
公开(公告)日：2000-02-02
申请号：EP98908797.8
申请日：1998-02-27
IPC分类号： C08G63/183 , C08G63/189 , C08G63/199 , C08G63/82 , C08K3/26 , C08K5/49
CPC分类号： C08G63/183 , C08G63/189 , C08G63/82 , C08G63/83 , C08G63/87
摘要： The present invention relates to a process comprising polymerizing repeat units derived from an acid component comprising terephthalic acid and naphthalenedicarboxylic acid and at least one glycol in the presence of less than about 10 ppm sodium carbonate and between about 10 and about 60 ppm phosphorus. Polyesters formed via the process of the present invention display surprisingly good clarity and color.
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