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CA2138729A1 - A method of manufacturing polyesters - Google Patents

A method of manufacturing polyesters

Info

Publication number
CA2138729A1
CA2138729A1 CA 2138729 CA2138729A CA2138729A1 CA 2138729 A1 CA2138729 A1 CA 2138729A1 CA 2138729 CA2138729 CA 2138729 CA 2138729 A CA2138729 A CA 2138729A CA 2138729 A1 CA2138729 A1 CA 2138729A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
step
polycondensation
method
distillate
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2138729
Other languages
French (fr)
Other versions
CA2138729C (en )
Inventor
Hirofumi Harazoe
Masamitsu Matsuno
Seiji Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Petrochemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes

Abstract

The invention provides a method of manufacturing polyesters which comprises an esterifying step wherein a dicarboxylic acid and a dihydroxyl compound are esterified and the next liquid phase polycondensation step wherein the resulting ester is subjected to liquid phase polycondensation in the presence of a polycondensation catalyst while a distillate which contains an reacted dihydroxyl compound and the polycondensation catalyst is distilled, wherein the distillate is subjected to a purification treatment comprising:
(a) a distilling step;
(b) a filtering step; and (c) a decoloring step and then the thus purified distillate is recovered and supplied to the esterifying step. A further method comprises a purification treatment comprising:
(a) a distilling step;
(b) a depolymerizing step; and (c) a decoloring step.
CA 2138729 1993-12-22 1994-12-21 A method of manufacturing polyesters Expired - Fee Related CA2138729C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP32519093 1993-12-22
JP5-325190 1993-12-22
JP6-251069 1994-10-17
JP25106994A JP3357477B2 (en) 1994-10-17 1994-10-17 The method of manufacturing polyester

Publications (2)

Publication Number Publication Date
CA2138729A1 true true CA2138729A1 (en) 1995-06-23
CA2138729C CA2138729C (en) 2006-03-14

Family

ID=26540043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2138729 Expired - Fee Related CA2138729C (en) 1993-12-22 1994-12-21 A method of manufacturing polyesters

Country Status (6)

Country Link
US (1) US5519112A (en)
EP (1) EP0659797B1 (en)
CN (1) CN1058023C (en)
CA (1) CA2138729C (en)
DE (2) DE69432553T2 (en)
ES (1) ES2191672T3 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5932105A (en) * 1997-10-01 1999-08-03 Mobile Process Technology, Co. Method of polyester manufacturing using crossflow membrane filtration
WO2002044275A1 (en) * 2000-12-01 2002-06-06 Toray Industries, Inc. Polyester composition, films made thereof and process for producing the composition
US6906164B2 (en) * 2000-12-07 2005-06-14 Eastman Chemical Company Polyester process using a pipe reactor
CA2430570C (en) * 2000-12-07 2011-03-22 Eastman Chemical Company Polyester process using a pipe reactor
JP3998242B2 (en) * 2002-10-29 2007-10-24 花王株式会社 Polyester resin for a toner composition
US7074879B2 (en) * 2003-06-06 2006-07-11 Eastman Chemical Company Polyester process using a pipe reactor
US7332548B2 (en) * 2004-03-04 2008-02-19 Eastman Chemical Company Process for production of a polyester product from alkylene oxide and carboxylic acid
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US7838596B2 (en) * 2005-09-16 2010-11-23 Eastman Chemical Company Late addition to effect compositional modifications in condensation polymers
US7932345B2 (en) 2005-09-16 2011-04-26 Grupo Petrotemex, S.A. De C.V. Aluminum containing polyester polymers having low acetaldehyde generation rates
US7655746B2 (en) * 2005-09-16 2010-02-02 Eastman Chemical Company Phosphorus containing compounds for reducing acetaldehyde in polyesters polymers
US8431202B2 (en) 2005-09-16 2013-04-30 Grupo Petrotemex, S.A. De C.V. Aluminum/alkaline or alkali/titanium containing polyesters having improved reheat, color and clarity
US9267007B2 (en) * 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt
US7709593B2 (en) * 2006-07-28 2010-05-04 Eastman Chemical Company Multiple feeds of catalyst metals to a polyester production process
US20080027207A1 (en) * 2006-07-28 2008-01-31 Jason Christopher Jenkins Non-precipitating alkali/alkaline earth metal and aluminum compositions made with mono-ol ether solvents
US7745368B2 (en) * 2006-07-28 2010-06-29 Eastman Chemical Company Non-precipitating alkali/alkaline earth metal and aluminum compositions made with organic hydroxyacids
US7709595B2 (en) * 2006-07-28 2010-05-04 Eastman Chemical Company Non-precipitating alkali/alkaline earth metal and aluminum solutions made with polyhydroxyl ether solvents
US20080139780A1 (en) * 2006-12-07 2008-06-12 Debruin Bruce Roger Polyester production system employing short residence time esterification
US7649109B2 (en) * 2006-12-07 2010-01-19 Eastman Chemical Company Polyester production system employing recirculation of hot alcohol to esterification zone
US7943094B2 (en) 2006-12-07 2011-05-17 Grupo Petrotemex, S.A. De C.V. Polyester production system employing horizontally elongated esterification vessel
US8901272B2 (en) * 2007-02-02 2014-12-02 Grupo Petrotemex, S.A. De C.V. Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration
US7863477B2 (en) 2007-03-08 2011-01-04 Eastman Chemical Company Polyester production system employing hot paste to esterification zone
US7872089B2 (en) 2007-07-12 2011-01-18 Eastman Chemical Company Multi-level tubular reactor with internal tray
US7847053B2 (en) * 2007-07-12 2010-12-07 Eastman Chemical Company Multi-level tubular reactor with oppositely extending segments
US7868130B2 (en) * 2007-07-12 2011-01-11 Eastman Chemical Company Multi-level tubular reactor with vertically spaced segments
US7872090B2 (en) * 2007-07-12 2011-01-18 Eastman Chemical Company Reactor system with optimized heating and phase separation
US7829653B2 (en) * 2007-07-12 2010-11-09 Eastman Chemical Company Horizontal trayed reactor
US7842777B2 (en) * 2007-07-12 2010-11-30 Eastman Chemical Company Sloped tubular reactor with divided flow
US7858730B2 (en) * 2007-07-12 2010-12-28 Eastman Chemical Company Multi-level tubular reactor with dual headers
US7868129B2 (en) * 2007-07-12 2011-01-11 Eastman Chemical Company Sloped tubular reactor with spaced sequential trays

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL301426A (en) * 1962-12-06
US3703488A (en) * 1968-03-22 1972-11-21 Goodyear Tire & Rubber Process for reuse of polyester resin
US3884850A (en) * 1970-02-13 1975-05-20 Fiber Industries Inc Continuous atmospheric depolymerization of polyester
DE7139639U (en) * 1971-10-20 1972-03-09 Schlieckmann H Repair finished part for a strut holder of motor vehicles, in particular motor cars
DE2514116C3 (en) * 1975-03-29 1983-03-17 Basf Ag, 6700 Ludwigshafen, De
US4263425A (en) * 1977-08-10 1981-04-21 Zimmer Aktiengesellschaft Process for production of polyester polymer for food packing
US4226973A (en) * 1979-06-22 1980-10-07 Standard Oil Company (Indiana) Process for upgrading prepolymer particles
JPS5726632A (en) * 1980-07-25 1982-02-12 Toray Ind Inc Purifying method of glycol
US4620032A (en) * 1984-12-11 1986-10-28 Celanese Corporation Depolymerization of condensation polymers involving a pre-molecular weight reduction step
DE3943129A1 (en) * 1989-12-28 1991-07-04 Huels Chemische Werke Ag A process for the preparation of thermoplastic, high molecular weight copolyesters

Also Published As

Publication number Publication date Type
ES2191672T3 (en) 2003-09-16 grant
EP0659797B1 (en) 2003-04-23 grant
CA2138729C (en) 2006-03-14 grant
CN1106421A (en) 1995-08-09 application
EP0659797A3 (en) 1996-08-21 application
CN1058023C (en) 2000-11-01 grant
EP0659797A2 (en) 1995-06-28 application
DE69432553D1 (en) 2003-05-28 grant
US5519112A (en) 1996-05-21 grant
DE69432553T2 (en) 2004-01-29 grant

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20141222