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公开(公告)号：EP2178634A1
公开(公告)日：2010-04-28
申请号：EP08794418.7
申请日：2008-07-07
发明人： DEBRUIN, Bruce, Roger , EKART, Michael, Paul , YOUT, Thomas, Lloyd , WINDES, Larry, cates , SLIGER, David, Allen
CPC分类号： B01J19/006 , B01J4/001 , B01J19/242 , B01J19/2425 , B01J2219/00768 , B01J2219/0077 , B01J2219/00777 , B01J2219/182 , B01J2219/1943 , C08G63/785
摘要： A multi-level tubular reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The tubular reactor can include a horizontally elongated reactor segment containing a tray that divides the internal volume of the reactor segment into upper and lower chambers. The reaction medium can flow through the upper and lower in generally opposite directions.
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2.发明公开
公开(公告)号：EP1720929A1
公开(公告)日：2006-11-15
申请号：EP05724301.6
申请日：2005-03-01
发明人： WHITE, Alan, Wayne , EKART, Michael, Paul , WINDES, Larry, Cates , BONNER, Richard, Gill , WONDERS, Alan, George
摘要： A process to produce polyester product from alkylene oxide and carboxylic acid. More specifically this process relates to a process to produce polyethylene terephthalate where terephthalic acid and ethylene oxide are reacted to form a partially esterified terephthalic acid product and then the partially esterified product is further reacted with ethylene glycol to produce polyethylene terephthalate.
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3.发明授权APPARATUS AND METHOD FOR MOLDING POLYESTER ARTICLES HAVING LOW ACETALDEHYDE CONTENT DIRECTLY FROM THE MELT FORMATION USING FLASH TANK DEVOLATILIZATION 失效装置及方法放松DEVICE挥发MEANS直接低ACETALDEHYDEGEHALT从熔融聚酯制品的形式
公开(公告)号：EP0968243B1
公开(公告)日：2002-07-03
申请号：EP98911871.6
申请日：1998-03-19
发明人： TREECE, Lanney, Calvin , OLSEN, Eric, Gray , SHELBY, Marcus, David , CARROLL, Max, Lamar, Jr. , EKART, Michael, Paul , WEINHOLD, Stephen
IPC分类号： C08G63/88
CPC分类号： B29C47/367 , B29B17/0005 , B29C45/1816 , B29C45/63 , B29C47/0004 , B29C47/0014 , B29C47/0019 , B29C47/364 , B29C47/368 , B29C47/38 , B29C67/246 , B29C2045/1883 , B29C2045/545 , B29K2067/00 , B29K2105/0002 , C08G63/78 , C08G63/785 , Y02W30/62
摘要： An apparatus and a method for molding of polyester articles having low acetaldehyde content directly from a melt without intermediate solidification of the molten polyester. A melt to mold process is used wherein an acetaldehyde stripping agent is mixed into a polyester melt before devolatilization in a flash tank. The devolatilized polyester is pumped out of the flash tank and injected into a mold, thus forming a shaped article. The apparatus may include one or more flash tanks in one devolatilization line, or multiple devolatilization lines may be used stemming from one main polymerization reactor. The final shaped article should contain less than 10 ppm of acetaldehyde.
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4.发明授权PROCESS INCLUDING GLYCOLYSIS AND SUBSEQUENT PURIFICATION FOR RECYCLING POLYESTER MATERIALS 失效方法进行回收聚酯材料糖酵解和清洁NACHTÄGLICHE
公开(公告)号：EP0865464B1
公开(公告)日：2001-05-30
申请号：EP96942058.7
申请日：1996-11-26
CPC分类号： C08J11/24 , C08G63/78 , C08J2367/02 , Y02W30/706
摘要： A new process is described for recycling polyesters. In accordance with the described process, postconsumer or scrap polyester is reacted with glycol to produce a monomer or low molecular weight oligomer by depolymerization of the polyester. The monomer or oligomer, as the case may be, is then purified using one or more of a number of steps including filtration, crystallization, and optionally adsorbent treatment or evaporation. The monomer or oligomer thus produced is particularly suitable as a raw material for acid or ester based polyester production of packaging grade polyester material. Because the process includes purification steps, specifications for the previously used polyester material need not be strict.
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5.发明公开APPARATUS AND METHOD FOR MOLDING OF POLYESTER ARTICLES DIRECTLY FROM A MELT 失效DEVICE AND METHOD FOR铸造聚酯制品的直接从熔体
公开(公告)号：EP1009613A1
公开(公告)日：2000-06-21
申请号：EP98912972.1
申请日：1998-03-19
发明人： TREECE, Lanney, Calvin , OLSEN, Eric, Gray , SHELBY, Marcus, David , CARROLL, Max, Lamar, Jr. , EKART, Michael, Paul
IPC分类号： B29C47/50
CPC分类号： B29C47/367 , B29B17/0005 , B29C45/1816 , B29C45/54 , B29C45/63 , B29C47/0004 , B29C47/0009 , B29C47/364 , B29C47/368 , B29C47/38 , B29C67/246 , B29C2045/1883 , B29C2045/545 , B29K2067/00 , B29K2105/0002 , C08G63/78 , C08G63/785 , Y02W30/62
摘要： The present invention relates to an apparatus and method for producing molded polyester articles. More particularly, the invention concerns an apparatus and method for continuously producing molded polyester articles having low acetaldehyde content from a melt prepared by continuously reacting polyester precursors. The polyester is prepared and formed into useful shaped articles in a single integrated, continuous melt-to-mold process without an intermediate solidification of the melt.
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公开(公告)号：EP4136191A1
公开(公告)日：2023-02-22
申请号：EP21723528.2
申请日：2021-04-13
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公开(公告)号：EP4136161A1
公开(公告)日：2023-02-22
申请号：EP21723823.7
申请日：2021-04-13
发明人： DEBRUIN, Bruce, Roger , EKART, Michael, Paul , JACKSON, Anne-martine, Sherbeck , WEST, Nathan, Mitchell , LIU, Zhufang
IPC分类号： C08J11/24
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公开(公告)号：EP4103666A1
公开(公告)日：2022-12-21
申请号：EP21753383.5
申请日：2021-02-10
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公开(公告)号：EP1784439A2
公开(公告)日：2007-05-16
申请号：EP05791752.8
申请日：2005-08-29
发明人： WEINHOLD, Stephen , COLHOUN, Frederick, Leslie , EKART, Michael, Paul , GAMBLE, Benjamin, Bradford
CPC分类号： C08G63/88 , Y10T428/1334 , Y10T428/1355
摘要： Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an lt.V. of at least 0.72 dL/g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140 °C to 220 °C and having a melting endotherm area of at least the absolute value of 1 J/g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax = 50% - CA - OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but: preferably D) 10 ppm or less of residual acetaldehyde.
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公开(公告)号：EP1664141A2
公开(公告)日：2006-06-07
申请号：EP04782013.9
申请日：2004-08-24
发明人： JERNIGAN, Mary, Therese , EKART, Michael, Paul , SAMITIER, Luciano, Dalmacio , WELLS, Cory, Lee , WINDES, Larry, Cates
IPC分类号： C08G2/00
CPC分类号： B01J4/002 , B01J8/007 , B01J8/085 , B01J19/24 , B01J19/26 , B01J19/30 , B01J2219/00763 , B01J2219/185 , B01J2219/1943 , B01J2219/30215 , C08G63/88
摘要： A process for thermally crystallizing a polyester polymer by introducing pellets into a liquid medium having a temperature of at least 140°C within a liquid medium zone and crystallizing the submerged pellets at or above the vapor pressure of the liquid medium without increasing the molecular weight of the pellets, and while the pressure on at least a portion of the pellets is equal to or greater than the vapor pressure of the liquid medium, separating at least a portion of said pellets and at least a portion of the liquid medium from each other. The crystallization is desirably conducted in the liquid medium zone without mechanically induced agitation. Optionally, the pellets are formed by an underfluid pelletizer. There is also provided a process for thermally crystallizing solid pellets in a pipe by directing a flow of solid pellets in a liquid medium through a pipe having an aspect ratio L/D of at least 50:1, wherein the solid pellets are crystallized in the pipe at a liquid medium temperature greater than the Tg of the polyester polymer.
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