ES8406519A1 - Procedimiento para la preparacion continua de poliester de alto peso molecular. - Google Patents

Procedimiento para la preparacion continua de poliester de alto peso molecular.

Info

Publication number
ES8406519A1
ES8406519A1 ES521661A ES521661A ES8406519A1 ES 8406519 A1 ES8406519 A1 ES 8406519A1 ES 521661 A ES521661 A ES 521661A ES 521661 A ES521661 A ES 521661A ES 8406519 A1 ES8406519 A1 ES 8406519A1
Authority
ES
Spain
Prior art keywords
stage
polyethylene terephthalate
highly condensed
polyester production
granulate
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.)
Expired
Application number
ES521661A
Other languages
English (en)
Other versions
ES521661A0 (es
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.)
Inventa AG fuer Forschung und Patentverwertung
Uhde Inventa Fischer AG
Original Assignee
EMS Inventa AG
Inventa AG fuer Forschung und Patentverwertung
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
Application filed by EMS Inventa AG, Inventa AG fuer Forschung und Patentverwertung filed Critical EMS Inventa AG
Publication of ES521661A0 publication Critical patent/ES521661A0/es
Publication of ES8406519A1 publication Critical patent/ES8406519A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION EN CONTINUO, DE POLIESTER MACROMOLECULAR, TAL COMO POLI(TEREFTALATO DE ETILGLENICOL) CON UN CONTENIDO TOTAL DE ACETALDEHIDO INFERIOR A 3 PPM, EN FASE SOLIDA.CONSISTE EN UN TRATAMIENTO DE POLIESTER CON VAPOR DE AGUA, CON GASES INERTES O CON AIRE, QUE CONTIENE VAPOR DE AGUA, A TEMPERATURAS ENTRE 100JC Y 245JC, SEGUIDO DE UNA CONDENSACION A 200-245JC CON GAS INERTE Y/O AIRE, A PRESION NORMAL O EN VACIO.ESTE POLIESTER TIENE APLICACIONES EN LA INDUSTRIA DE LA ALIMENTACION, EN ESPECIAL PARA BOTELLAS.
ES521661A 1982-04-21 1983-04-20 Procedimiento para la preparacion continua de poliester de alto peso molecular. Expired ES8406519A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2400/82A CH656391A5 (de) 1982-04-21 1982-04-21 Verfahren zur herstellung von hochmolekularen polyestern.

Publications (2)

Publication Number Publication Date
ES521661A0 ES521661A0 (es) 1984-07-01
ES8406519A1 true ES8406519A1 (es) 1984-07-01

Family

ID=4232895

Family Applications (1)

Application Number Title Priority Date Filing Date
ES521661A Expired ES8406519A1 (es) 1982-04-21 1983-04-20 Procedimiento para la preparacion continua de poliester de alto peso molecular.

Country Status (8)

Country Link
BE (1) BE896505A (es)
CH (1) CH656391A5 (es)
DE (1) DE3314149C2 (es)
ES (1) ES8406519A1 (es)
FR (1) FR2525614B1 (es)
GB (1) GB2118565B (es)
IT (1) IT1167628B (es)
NL (1) NL190584C (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503330A1 (de) * 1985-02-01 1986-08-07 Herberts Gmbh, 5600 Wuppertal Verfahren zur verminderung des geruchs von polyesterharzen und deren verwendung
IT1188204B (it) * 1985-11-19 1988-01-07 Cobarr Spa Procedimento per la riduzione del tenore di acetaldeide in contenitori biorientati ottenuti da preforme di polietilene tereftalato
IT1211471B (it) * 1987-07-24 1989-11-03 Cobarr Spa Procedimento per la riduzione di impurezze di resine poliesteri
DE3811449A1 (de) * 1988-04-06 1989-10-19 Bayer Ag Verfahren zur verminderung der fogentwicklung durch weichmacher in kunststoffen
US5538343A (en) * 1995-03-06 1996-07-23 E. I. Du Pond De Nemours And Company Apparatus and method for liquid mixing employing nip zones

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE930231C (de) * 1952-07-23 1955-07-11 Basf Ag Herstellung von hochschmelzenden linearen Polyestern aus aromatischen Dicarbonsaeuren
NL96018C (es) * 1957-02-20
US3544525A (en) * 1968-03-26 1970-12-01 Allied Chem Process for crystallization,drying and solid-state polymerization of polyesters
DE1770410A1 (de) * 1968-05-14 1972-03-09 Glanzstoff Ag Verfahren zur Erhoehung des Molekulargewichts von Polyester
DE1804119A1 (de) * 1968-10-19 1970-06-11 Hoechst Ag Verfahren zur Herstellung hochmolekularer Polyester
US4223128A (en) * 1978-05-16 1980-09-16 Celanese Corporation Process for preparing polyethylene terephthalate useful for beverage containers
JPS5643324A (en) * 1979-09-18 1981-04-22 Nippon Ester Co Ltd Production of polyester chip
US4254253A (en) * 1980-02-21 1981-03-03 The Goodyear Tire & Rubber Company Preparation of high molecular weight polyester
DD149939A1 (de) * 1980-03-31 1981-08-05 Eberhard Mueller Verfahren zum abtrennen fluechtiger bestandteile aus polymerschmelzen
JPS5744624A (en) * 1980-09-01 1982-03-13 Hitachi Ltd Apparatus for solid phase polymerization of polyester

Also Published As

Publication number Publication date
DE3314149A1 (de) 1983-11-03
BE896505A (fr) 1983-08-16
DE3314149C2 (de) 1991-06-27
ES521661A0 (es) 1984-07-01
GB2118565B (en) 1985-12-11
IT1167628B (it) 1987-05-13
FR2525614A1 (fr) 1983-10-28
NL8301405A (nl) 1983-11-16
GB8310663D0 (en) 1983-05-25
IT8348053A0 (it) 1983-04-06
CH656391A5 (de) 1986-06-30
NL190584B (nl) 1993-12-01
NL190584C (nl) 1994-05-02
GB2118565A (en) 1983-11-02
FR2525614B1 (fr) 1986-12-26

Similar Documents

Publication Publication Date Title
FI941632A0 (fi) Parannettu menetelmä (5R)-1,1-dimetyylietyyli-6-syano-5-hydroksi-3-oksoheksanoaatin valmistamiseksi
IT8522898A0 (it) Procedimento per la riduzione del tenore di acetaldeide incontenicori biorientati ottenuti da preforme di polietilene tereftalato.
ES477942A1 (es) Procedimiento para el tratamiento de soluciones acuosas impuras de oxido de etileno.
EP0389948A3 (en) Process for treatment of polyethylene terephthalate, polyethylene terephthalate for molding purposes and process for preparation thereof
BR8105687A (pt) Processo para reducao das tendecias a aglutinacao e ao empoeiramento de granulos de ureia, processo para a preparacao de granulos de ureia, e granulos de ureia assim obtidos
JPS56103236A (en) Polyester composition
ES8406519A1 (es) Procedimiento para la preparacion continua de poliester de alto peso molecular.
ATE166045T1 (de) Verfahren zur herstellung von tertiärem butylamin
GB1276792A (en) Acetone purification process
AU2253392A (en) Therapeutic fragments of von willebrand factor
EP0380363A3 (en) Process for producing tetrabromobisphenol a
EP0223263A3 (en) A process for purifying uridine diphosphate-n-acetylgalactosamine
TW335387B (en) Process of producing nitrogen using a double column plus an auxiliary low pressure separation zone
CA2083243A1 (en) Process for the production of a virus-free concentrate of thrombin
ES2051871T3 (es) Procedimiento para la obtencion de un concentrado de alfa 1-antitripsina a partir de una fraccion de plasma.
SE7703843L (sv) Forfarande for framstellning av immunoglobulin
CA2236479A1 (en) Process for purifying condensate while evaporating waste liquors
AU7573281A (en) Distillation system
EP0167647A3 (en) Method and device for the degasification of liquids and method and device for the degasification of liquids and their use their use
MX9401260A (es) COMPUESTO DE BIBENZOATO DE BIS-ß-HIDROXIETILO.
ES520400A1 (es) Procedimiento para la obtencion de polialquilentereftalatos reforzados.
JPS54107584A (en) Preparation of pure heparinase
JPS5740423A (en) Production of cumene and/or polyisopropylbenzene
KR840000885A (ko) 엘더베리(황금포도)음료(음료원액)의 제조방법
FR2564483B1 (fr) Procede de fabrication du 2,3 butane diol par fermentation aerobie d'un substrat par des souches de bacillus polymyxa