[go: up one dir, main page]

ES2138351T3 - Procedimiento de purificacion de alcohol polivinilico. - Google Patents

Procedimiento de purificacion de alcohol polivinilico.

Info

Publication number
ES2138351T3
ES2138351T3 ES96919873T ES96919873T ES2138351T3 ES 2138351 T3 ES2138351 T3 ES 2138351T3 ES 96919873 T ES96919873 T ES 96919873T ES 96919873 T ES96919873 T ES 96919873T ES 2138351 T3 ES2138351 T3 ES 2138351T3
Authority
ES
Spain
Prior art keywords
pct
content
poly
vinyl alcohol
date nov
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 - Lifetime
Application number
ES96919873T
Other languages
English (en)
Inventor
Jean-Jacques Charrin
Francois Vachet
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.)
Acetex Chimie SAS
Original Assignee
Acetex Chimie SAS
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 Acetex Chimie SAS filed Critical Acetex Chimie SAS
Application granted granted Critical
Publication of ES2138351T3 publication Critical patent/ES2138351T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B63/00—Purification; Separation; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F116/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F116/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
    • C08F116/04—Acyclic compounds
    • C08F116/06—Polyvinyl alcohol ; Vinyl alcohol
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/008—Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN PROCEDIMIENTO DE PURIFICACION DE ALCOHOL POLIVINILICO. ESTE CONSISTE EN SOMETER UN ALCOHOL POLIVINILICO A UN TRATAMIENTO TERMICO BAJO AGITACION Y BAJO UNA ATMOSFERA NO SATURADA DE AGUA QUE PRESENTA UN PORCENTAJE EN MASA DE VAPOR DE AGUA COMPRENDIDO ENTRE EL 20 % Y EL 100 %. EL PROCEDIMIENTO SEGUN LA INVENCION PUEDE COMPRENDER ADEMAS UNA ETAPA DE SECADO ADICIONAL. LA PRESENTE INVENCION SE REFIERE TAMBIEN A UN ALCOHOL POLIVINILICO QUE PRESENTA UN CONTENIDO DE ALCOHOL, Y MAS EN PARTICULAR DE METANOL, INFERIOR AL 1 %, UN CONTENIDO DE ESTER, Y MAS EN PARTICULAR DE ACETATO DE METILO, INFERIOR AL 1 %, EN FORMA DE ESCAMAS DE ALGUNOS MILIMETROS O DE UN POLVO CUYA GRANULOMETRIA MEDIA ES VENTAJOSAMENTE SUPERIOR A 600 MI}M.
ES96919873T 1995-05-05 1996-05-06 Procedimiento de purificacion de alcohol polivinilico. Expired - Lifetime ES2138351T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9505893A FR2733756B1 (fr) 1995-05-05 1995-05-05 Procede de purification d'alcool polyvinylique

Publications (1)

Publication Number Publication Date
ES2138351T3 true ES2138351T3 (es) 2000-01-01

Family

ID=9479111

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96919873T Expired - Lifetime ES2138351T3 (es) 1995-05-05 1996-05-06 Procedimiento de purificacion de alcohol polivinilico.

Country Status (12)

Country Link
US (1) US6080814A (es)
EP (1) EP0823917B1 (es)
JP (1) JP3177914B2 (es)
KR (1) KR100296785B1 (es)
CN (1) CN1074424C (es)
AT (1) ATE183755T1 (es)
AU (1) AU5824896A (es)
DE (1) DE69603953T2 (es)
ES (1) ES2138351T3 (es)
FR (1) FR2733756B1 (es)
TR (1) TR199701300T1 (es)
WO (1) WO1996034897A1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6451967B1 (en) * 1999-09-20 2002-09-17 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Method of drying saponified ethylene-vinyl acetate copolymers
ATE281477T1 (de) 2000-08-07 2004-11-15 Kuraray Co Verfahren zur verarbeitung von lösungen aus ethylen-vinylalkohol-copolymeren
DE60024810T2 (de) * 2000-08-07 2006-08-31 KURARAY CO., LTD, Kurashiki Verfahren zur Herstellung von wässrigen Zusammensetzungen aus Ethylen-Vinylalkohol-Copolymeren
CN101747459B (zh) * 2008-12-02 2011-09-07 卢金永 化学改性聚乙烯醇分散剂的制备方法
TWI522373B (zh) 2015-01-27 2016-02-21 長春石油化學股份有限公司 聚乙烯醇及其純化方法
EP3392165B1 (en) * 2015-12-18 2020-09-23 Mitsubishi Chemical Corporation Use of a packaging bag and method for storing melt-processable polyvinyl alcohol resin in which said packaging bag is used
CN105837710A (zh) * 2016-03-31 2016-08-10 温州小伦包衣技术有限公司 药用聚乙烯醇的制备方法及其药用聚乙烯醇与应用
CN110088147B (zh) * 2016-12-21 2023-10-24 三菱化学株式会社 聚乙烯醇系树脂、分散剂和悬浮聚合用分散剂
JP6981258B2 (ja) * 2016-12-21 2021-12-15 三菱ケミカル株式会社 ポリビニルアルコール系樹脂、分散剤及び懸濁重合用分散剤
CN107151283B (zh) * 2017-05-27 2020-10-27 中国石油化工集团公司 一种光学材料专用聚乙烯醇的制备方法
US12065517B2 (en) 2018-09-05 2024-08-20 Kuraray Co., Ltd. Production method of polyvinyl alcohol resin, and polyvinyl alcohol resin
US20240141082A1 (en) * 2021-03-08 2024-05-02 Sekisui Chemical Co., Ltd. Poly(vinyl alcohol) resin
CN114409831A (zh) * 2022-01-02 2022-04-29 浙江尚能实业股份有限公司 一种用于扩散源生产的聚乙烯醇树脂提纯方法
CN116445135B (zh) * 2023-03-31 2025-11-07 中国科学院武汉岩土力学研究所 一种新型生态修复水凝胶型环保抑尘剂及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB933104A (en) * 1958-12-04 1963-08-08 Kurashiki Rayon Kk Process of and apparatus for purifying polyvinyl alcohol prepared by saponification
FR1360102A (fr) * 1963-06-07 1964-04-30 Air Reduction Améliorations au procédé de traitement de l'alcool polyvinylique
DE1620946B2 (de) * 1965-01-30 1973-07-05 Kuraray Co, Ltd , Kurashiki, Oka yama (Japan) Verfahren zur herstellung von polyvinylalkohol mit niedrigem quellgrad
GB1048120A (en) * 1968-05-20 1966-11-09 Denki Kagaku Kogyo Kk Production of highly saponified polyvinyl alcohol
JPS5217870B2 (es) * 1973-01-31 1977-05-18
JPS5543158A (en) * 1978-09-21 1980-03-26 Nippon Synthetic Chem Ind Co Ltd:The Preparation of polyvinyl alcohol having improved dispersiblity in water
US4731266A (en) * 1981-06-03 1988-03-15 Rhone-Poulenc, S.A. Water-resistant polyvinyl alcohol film and its application to the preparation of gas-impermeable composite articles

Also Published As

Publication number Publication date
DE69603953D1 (de) 1999-09-30
CN1074424C (zh) 2001-11-07
EP0823917A1 (fr) 1998-02-18
ATE183755T1 (de) 1999-09-15
DE69603953T2 (de) 2000-01-27
EP0823917B1 (fr) 1999-08-25
AU5824896A (en) 1996-11-21
JPH11504374A (ja) 1999-04-20
TR199701300T1 (xx) 1998-02-21
FR2733756B1 (fr) 1997-08-01
FR2733756A1 (fr) 1996-11-08
KR19990008342A (ko) 1999-01-25
WO1996034897A1 (fr) 1996-11-07
KR100296785B1 (ko) 2001-10-25
CN1187826A (zh) 1998-07-15
JP3177914B2 (ja) 2001-06-18
US6080814A (en) 2000-06-27

Similar Documents

Publication Publication Date Title
ES2138351T3 (es) Procedimiento de purificacion de alcohol polivinilico.
HUT70690A (en) Crosslinkable and redispergable disperz powders contain vinyl-esther- or (met)acryl-esther-copolymers and process for producing such powders
BR9815761A (pt) Processo a vácuo para a fabricação de copolìmeros de siloxano-oxialquileno
AU4075795A (en) Method of preparing carbamate-functional polymer
IN187057B (es)
WO1998023367A3 (de) Verfahren zur herstellung von organisch modifizierten, dauerhaft hydrophoben aerogelen
AU2439192A (en) Ester-free ethers
EP2043138A3 (en) Method of processing an object having an oxide film on its surface and apparatus for performing said method
CA2243514A1 (en) Process for the preparation of polyglycol(meth)acrylates
EP0801033A3 (en) Apparatus for degrading pollutant, process for purifying contaminated medium and process for degrading pollutant
PL354083A1 (en) The use of baclofen in the treatment of alcoholism
PL334920A1 (en) Composition crossclinkable by irradiation
EP0737833A3 (en) Vacuum heat insulator
HUT75832A (en) Compositions comprising cyclomarin-a cyclic heptapeptide anti-inflammatory agent, the method for producing cyclomarin-a and method for treating mammals
CA2258104A1 (en) Process for the preparation of alkoxysilanes
NO20020708L (no) Eksoterm ikke-vevet komposittmateriale, samt fremgangsmåte ved fremstilling og aktivering av dette
IL140337A (en) Process for preparing a polyvinyl alcohol gel containing a biologically active material
MY128779A (en) Alkenyl-containing isobutylene group block copolymer and process for producing it
MY117540A (en) High solids ethylene vinyl acetate emilsions
DE69814649D1 (de) Tonenthaltende mischung aus trockenen feststoffen die zur herstellung eines feuchtigkeitbeständigen gels verwendet werden kann und methode zur behandlung einer oberfläche
GR3019839T3 (en) Activation of polysaccharide hydrolase
HUP0000455A3 (en) Process to make initiator compositions comprising polyvinyl alcohol and surfactant and polymerisation's process
TW344748B (en) Imidazolinyl-functional organosiloxanes and method for preparation thereof
TW340108B (en) 1,1-difluoro-1,4-dichlorobutane and process for its preparation
JPS5434567A (en) Method of treating exhaust gas from crematory

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 823917

Country of ref document: ES