DE69405582D1 - Entfernung von basischen rückständen aus polyvinylalkohol-reaktionsaufschlämmungen - Google Patents

Entfernung von basischen rückständen aus polyvinylalkohol-reaktionsaufschlämmungen

Info

Publication number
DE69405582D1
DE69405582D1 DE69405582T DE69405582T DE69405582D1 DE 69405582 D1 DE69405582 D1 DE 69405582D1 DE 69405582 T DE69405582 T DE 69405582T DE 69405582 T DE69405582 T DE 69405582T DE 69405582 D1 DE69405582 D1 DE 69405582D1
Authority
DE
Germany
Prior art keywords
slaves
removal
polyvinyl alcohol
basic residues
alcohol reaction
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 - Fee Related
Application number
DE69405582T
Other languages
English (en)
Other versions
DE69405582T2 (de
Inventor
Richard Hayes
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE69405582D1 publication Critical patent/DE69405582D1/de
Application granted granted Critical
Publication of DE69405582T2 publication Critical patent/DE69405582T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08F6/24—Treatment of polymer suspensions
    • 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
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
DE69405582T 1993-11-01 1994-10-31 Entfernung von basischen rückständen aus polyvinylalkohol-reaktionsaufschlämmungen Expired - Fee Related DE69405582T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/143,762 US5425879A (en) 1993-11-01 1993-11-01 Removal of base residues from poly(vinyl alcohol) reaction-slurries
PCT/US1994/012471 WO1995012625A2 (en) 1993-11-01 1994-10-31 Removal of base residues from poly(vinyl alcohol) reaction-slurries

Publications (2)

Publication Number Publication Date
DE69405582D1 true DE69405582D1 (de) 1997-10-16
DE69405582T2 DE69405582T2 (de) 1998-04-16

Family

ID=22505493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69405582T Expired - Fee Related DE69405582T2 (de) 1993-11-01 1994-10-31 Entfernung von basischen rückständen aus polyvinylalkohol-reaktionsaufschlämmungen

Country Status (6)

Country Link
US (1) US5425879A (de)
EP (1) EP0728152B1 (de)
JP (1) JPH09504571A (de)
KR (1) KR960705857A (de)
DE (1) DE69405582T2 (de)
WO (1) WO1995012625A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521136A1 (de) * 1995-06-09 1996-12-12 Siemens Ag Nuklearmedizinische Diagnostikeinrichtung
DE19617893C1 (de) * 1996-05-04 1997-10-02 Hoechst Ag Verfahren zur Herstellung von Polyvinylacetalen und -ketalen
US6558607B1 (en) * 1999-09-30 2003-05-06 University Of Massachusetts Crystallization of constrained polymers
US7125607B2 (en) * 2004-03-16 2006-10-24 Solutia Incorporated Polymer sheets and methods of controlling adhesion of polymer sheets to glass
JP5616081B2 (ja) * 2010-03-03 2014-10-29 電気化学工業株式会社 ポリビニルアルコール樹脂の製造方法
EP2778782B1 (de) 2013-03-13 2015-12-30 Kodak Graphic Communications GmbH Negativ arbeitende strahlungsempfindliche Elemente
JP7338948B2 (ja) * 2016-07-29 2023-09-05 三菱ケミカル株式会社 樹脂組成物及びその用途、並びに樹脂組成物の製造方法
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642419A (en) * 1950-01-31 1953-06-16 Eastman Kodak Co Preparation of polyvinyl alcohol
CH334652A (de) * 1955-05-12 1958-12-15 Lonza Ag Verfahren zur Herstellung von Polyvinylalkoholen
DE2035362C3 (de) * 1969-07-21 1974-11-28 Kuraray Co., Ltd., Kurashiki, Okayama (Japan) Verfahren zum Herstellen von Formkörpern aus gereinigten Verseifungsprodukten von Äthylen-Vinylacetat-Copolymerisaten
JPS57135804A (en) * 1981-02-13 1982-08-21 Nippon Synthetic Chem Ind Co Ltd:The Saponification of polyvinyl ester resin
JPH03128903A (ja) * 1989-07-13 1991-05-31 Fine Kurei:Kk 合成樹脂の改質方法および改質合成樹脂
CS275541B2 (en) * 1989-11-15 1992-02-19 Mikulas Ing Buday Method of impurities removal from polyvinylalkohol's aqueous solutions
US5212285A (en) * 1990-06-14 1993-05-18 Shell Oil Company Removal of hydrogenation catalyst from polymer solutions by catalyzed precipitation
US5319070A (en) * 1993-06-04 1994-06-07 E. I. Du Pont De Nemours And Company Process for removal of ash from poly(vinyl alcohol) polymers

Also Published As

Publication number Publication date
JPH09504571A (ja) 1997-05-06
EP0728152A1 (de) 1996-08-28
DE69405582T2 (de) 1998-04-16
WO1995012625A2 (en) 1995-05-11
US5425879A (en) 1995-06-20
WO1995012625A3 (en) 1995-06-15
EP0728152B1 (de) 1997-09-10
KR960705857A (ko) 1996-11-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee