MX9603527A - Procedimiento para preparar copolimeros de poliacetal. - Google Patents

Procedimiento para preparar copolimeros de poliacetal.

Info

Publication number
MX9603527A
MX9603527A MX9603527A MX9603527A MX9603527A MX 9603527 A MX9603527 A MX 9603527A MX 9603527 A MX9603527 A MX 9603527A MX 9603527 A MX9603527 A MX 9603527A MX 9603527 A MX9603527 A MX 9603527A
Authority
MX
Mexico
Prior art keywords
catalyst
deactivator
main monomer
crude polymer
trioxane
Prior art date
Application number
MX9603527A
Other languages
English (en)
Other versions
MXPA96003527A (es
Inventor
Akira Nakai
Original Assignee
Polyplastics 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
Priority claimed from JP21175595A external-priority patent/JP2958259B2/ja
Application filed by Polyplastics Co filed Critical Polyplastics Co
Publication of MX9603527A publication Critical patent/MX9603527A/es
Publication of MXPA96003527A publication Critical patent/MXPA96003527A/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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06—Catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

Un procedimiento para producir un copolímero de poliacetal que es extremadamente estable desde el punto de vista térmico y es extremadamente reducido en la cantidad de terminales inestables, aun en un rendimiento elevado de polimerizacion, en donde el trioxano como monomero principal comprende la copolimerizacion de trioxano como monomero principal con un éter cíclico o formal cíclico que tiene por lo menos una ligadura de carbono como comonomero, utilizando un heteropoliácido específico o su sal como catalizador de polimerizacion, hasta que disminuya el contenido de los monomeros residuales hasta a lo sumo 10% en peso con base en la totalidad de monomeros alimentados; añadir de 0.01% a 10% en peso, con base en el polímero crudo resultante, de una solucion que contiene un desactivador de catalizador, o poniendo en contacto un gas básico como desactivador para desactivar el catalizador, y someter el polímero crudo tal cual a un tratamiento de fusion por calor, sin lavarlo.
MXPA/A/1996/003527A 1995-08-21 1996-08-20 Procedimiento para preparar copolimeros de poliacetal MXPA96003527A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP21175595A JP2958259B2 (ja) 1995-08-21 1995-08-21 ポリアセタール共重合体の製造方法
JP7-211755 1995-08-21
JP7-249300 1995-09-27
JP24930095 1995-09-27

Publications (2)

Publication Number Publication Date
MX9603527A true MX9603527A (es) 1997-07-31
MXPA96003527A MXPA96003527A (es) 1997-12-01

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014083983A1 (ja) * 2012-11-27 2014-06-05 ポリプラスチックス株式会社 ポリアセタール共重合体の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014083983A1 (ja) * 2012-11-27 2014-06-05 ポリプラスチックス株式会社 ポリアセタール共重合体の製造方法

Also Published As

Publication number Publication date
CN1078218C (zh) 2002-01-23
TH24869A (th) 1997-04-29
US5866670A (en) 1999-02-02
PL315765A1 (en) 1997-03-03
DE19633708A1 (de) 1997-02-27
CN1153789A (zh) 1997-07-09
MY115647A (en) 2003-08-30
TW349963B (es) 1999-01-11
CA2183710A1 (en) 1997-02-22

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees