CH339380A - Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen - Google Patents

Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen

Info

Publication number
CH339380A
CH339380A CH339380DA CH339380A CH 339380 A CH339380 A CH 339380A CH 339380D A CH339380D A CH 339380DA CH 339380 A CH339380 A CH 339380A
Authority
CH
Switzerland
Prior art keywords
production
water
polyvinyl alcohols
soluble polyvinyl
soluble
Prior art date
Application number
Other languages
English (en)
Inventor
Werner Dr Starck
Hans Dr Starck
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH339380A publication Critical patent/CH339380A/de

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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Public Health (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Cosmetics (AREA)
CH339380D 1954-11-27 1955-11-24 Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen CH339380A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF16232A DE946848C (de) 1954-11-27 1954-11-27 Verfahren zur Herstellung hochviskos-loeslicher Polyvinylalkohole

Publications (1)

Publication Number Publication Date
CH339380A true CH339380A (de) 1959-06-30

Family

ID=25817322

Family Applications (1)

Application Number Title Priority Date Filing Date
CH339380D CH339380A (de) 1954-11-27 1955-11-24 Verfahren zur Herstellung von in Wasser löslichen Polyvinylalkoholen

Country Status (5)

Country Link
US (1) US2860124A (de)
CH (1) CH339380A (de)
DE (1) DE946848C (de)
FR (1) FR1136190A (de)
GB (1) GB818037A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL216095A (de) * 1956-04-11
GB933104A (en) * 1958-12-04 1963-08-08 Kurashiki Rayon Kk Process of and apparatus for purifying polyvinyl alcohol prepared by saponification
JPS61148209A (ja) * 1984-12-21 1986-07-05 Kuraray Co Ltd 高重合度ポリビニルアルコール系重合体の製造方法
US5310790A (en) * 1986-08-01 1994-05-10 Kuraray Co. Ltd. Process for producing polyvinyl ester having a high degree of polymerization and process for producing polyvinyl alcohol having a high degree of polymerization
JPH0699516B2 (ja) * 1986-08-01 1994-12-07 株式会社クラレ 高重合度ポリビニルエステル系重合体の製造方法及び高重合度ポリビニルアルコ−ル系重合体の製造方法
JP2542346B2 (ja) * 1987-05-30 1996-10-09 日本合成化学工業株式会社 高重合度ポリビニルアルコ−ルの製造法
CN101421321B (zh) * 2006-04-19 2012-07-11 日本合成化学工业株式会社 聚乙烯醇类树脂及其用途

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE410558A (de) * 1934-07-26
US2668809A (en) * 1949-11-22 1954-02-09 Du Pont Preparation of high viscosity polyvinyl alcohol
US2661363A (en) * 1952-01-18 1953-12-01 Shell Dev Peresters of peroxycarboxylic acids

Also Published As

Publication number Publication date
FR1136190A (fr) 1957-05-10
US2860124A (en) 1958-11-11
GB818037A (en) 1959-08-12
DE946848C (de) 1956-08-09

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