MX9800877A - Proceso para producir articulos de poliester con bjo contenido de acetaldehido. - Google Patents

Proceso para producir articulos de poliester con bjo contenido de acetaldehido.

Info

Publication number
MX9800877A
MX9800877A MX9800877A MX9800877A MX9800877A MX 9800877 A MX9800877 A MX 9800877A MX 9800877 A MX9800877 A MX 9800877A MX 9800877 A MX9800877 A MX 9800877A MX 9800877 A MX9800877 A MX 9800877A
Authority
MX
Mexico
Prior art keywords
polyester
acetaldehyde content
low acetaldehyde
producing polyester
articles
Prior art date
Application number
MX9800877A
Other languages
English (en)
Other versions
MXPA98000877A (es
Inventor
Gregory Wayne Nelson
Vincent Alvin Nicely
Original Assignee
Eastman Chem Co
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 Eastman Chem Co filed Critical Eastman Chem Co
Publication of MXPA98000877A publication Critical patent/MXPA98000877A/es
Publication of MX9800877A publication Critical patent/MX9800877A/es

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Se describe un proceso para la produccion de artículos de poliéster moldeados y que tienen un bajo contenido de acetaldehído, el cual comprende las etapas de: a) hacer reaccionar un glicol y un ácido dicarboxílico en fase fundida para formar un poliéster que tiene una I.V. de 0.65-0.85; b) solidificar y peletizar el poliéster; c) volver a derretir el poliéster en un extrusor; y d) formar el poliéster en artículo moldeados. En donde al poliéster se le eliminan los volátiles durante o en seguida a dicha polimerizacion en fase fundida, mientras está siendo derretido otra vez, después de haber sido derretido otra vez, o por cualquier combinacion y haciendo pasar un gas purgante sobre dicho poliéster fundido.
MX9800877A 1995-08-01 1996-07-31 Proceso para producir articulos de poliester con bjo contenido de acetaldehido. MX9800877A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08509845 1995-08-01
US08/509,845 US5648032A (en) 1995-08-01 1995-08-01 Process for producing polyester articles having low acetaldehyde content
PCT/US1996/012504 WO1997005186A1 (en) 1995-08-01 1996-07-31 Process for producing polyester articles having low acetaldehyde content

Publications (2)

Publication Number Publication Date
MXPA98000877A MXPA98000877A (es) 1998-04-01
MX9800877A true MX9800877A (es) 1998-04-30

Family

ID=24028319

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9800877A MX9800877A (es) 1995-08-01 1996-07-31 Proceso para producir articulos de poliester con bjo contenido de acetaldehido.

Country Status (18)

Country Link
US (1) US5648032A (es)
EP (1) EP0842210B1 (es)
JP (1) JP3756520B2 (es)
CN (1) CN1196737A (es)
AR (1) AR003077A1 (es)
AT (1) ATE213258T1 (es)
AU (1) AU6642596A (es)
BR (1) BR9609745A (es)
CA (1) CA2226884A1 (es)
CO (1) CO4560427A1 (es)
DE (1) DE69619246T2 (es)
ES (1) ES2168497T3 (es)
MX (1) MX9800877A (es)
MY (1) MY132238A (es)
PL (1) PL324645A1 (es)
TW (1) TW386093B (es)
WO (1) WO1997005186A1 (es)
ZA (1) ZA966211B (es)

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US6129873A (en) * 1998-04-08 2000-10-10 Eastman Chemical Company Process for removing moisture and volatiles from pellets in single screw extruders
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Also Published As

Publication number Publication date
PL324645A1 (en) 1998-06-08
JP3756520B2 (ja) 2006-03-15
ZA966211B (en) 1997-02-10
DE69619246T2 (de) 2002-08-14
CO4560427A1 (es) 1998-02-10
AU6642596A (en) 1997-02-26
JPH11510206A (ja) 1999-09-07
US5648032A (en) 1997-07-15
TW386093B (en) 2000-04-01
WO1997005186A1 (en) 1997-02-13
AR003077A1 (es) 1998-05-27
CA2226884A1 (en) 1997-02-13
MY132238A (en) 2007-09-28
ATE213258T1 (de) 2002-02-15
BR9609745A (pt) 1999-03-02
EP0842210B1 (en) 2002-02-13
CN1196737A (zh) 1998-10-21
ES2168497T3 (es) 2002-06-16
EP0842210A1 (en) 1998-05-20
DE69619246D1 (de) 2002-03-21

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