FR1044643A - Perfectionnements à la fabrication de l'alcool polyvinylique - Google Patents

Perfectionnements à la fabrication de l'alcool polyvinylique

Info

Publication number
FR1044643A
FR1044643A FR1044643DA FR1044643A FR 1044643 A FR1044643 A FR 1044643A FR 1044643D A FR1044643D A FR 1044643DA FR 1044643 A FR1044643 A FR 1044643A
Authority
FR
France
Prior art keywords
manufacture
polyvinyl alcohol
polyvinyl
alcohol
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
Application number
Other languages
English (en)
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
Application granted granted Critical
Publication of FR1044643A publication Critical patent/FR1044643A/fr
Expired 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical 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)
FR1044643D 1950-04-22 1951-04-04 Perfectionnements à la fabrication de l'alcool polyvinylique Expired FR1044643A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691825XA 1950-04-22 1950-04-22

Publications (1)

Publication Number Publication Date
FR1044643A true FR1044643A (fr) 1953-11-19

Family

ID=22087261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1044643D Expired FR1044643A (fr) 1950-04-22 1951-04-04 Perfectionnements à la fabrication de l'alcool polyvinylique

Country Status (3)

Country Link
US (1) US2734048A (fr)
FR (1) FR1044643A (fr)
GB (1) GB691825A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950271A (en) * 1954-06-29 1960-08-23 Du Pont Alcoholysis of polyvinyl acetate
US3296236A (en) * 1962-05-31 1967-01-03 Du Pont Production of granular polyvinyl alcohol
US3487061A (en) * 1968-02-23 1969-12-30 Du Pont Continuous production of gel-resistant 97-98.5% alcoholized polyvinyl alcohol
US3487060A (en) * 1968-02-23 1969-12-30 Du Pont Production of granular polyvinyl alcohol
US3541069A (en) * 1968-04-29 1970-11-17 Du Pont Preparation of highly alcoholyzed polyvinyl alcohol
US3697495A (en) * 1970-08-05 1972-10-10 Du Pont Preparation of polyvinyl alcohol having improved color properties by treating the polyvinyl ester with ozone
DD206900A3 (de) * 1982-03-15 1984-02-08 Leuna Werke Veb Verfahren zur herstellung modifizierter vinylesterhaltiger olefincopolymerisate
US4948857A (en) * 1987-01-16 1990-08-14 Air Products And Chemicals, Inc. Copolymers of vinyl acetate and acrylates
DE19602901A1 (de) * 1996-01-27 1997-08-07 Hoechst Ag Verfahren zur Herstellung von Polyvinylalkohol
US6046272A (en) * 1998-01-29 2000-04-04 Air Products And Chemicals, Inc. Non yellowing, thermally stable polyvinyl alcohol
US10125204B2 (en) 2016-03-08 2018-11-13 Kuraray Co., Ltd. Particulate polyvinyl alcohol, process for making and uses of the same
US10858457B2 (en) 2017-08-17 2020-12-08 Kuraray Co., Ltd. Particulate polyvinyl alcohol copolymers, process for making and uses of the same
US20190380257A1 (en) 2018-06-19 2019-12-19 Kuraray Co., Ltd. Aqueous seed coating composition
US11236260B2 (en) 2018-08-28 2022-02-01 Kuraray Co., Ltd. Diverting agents based on thermoplastic polyvinyl alcohol pellets
US11118105B2 (en) 2018-08-28 2021-09-14 Kuraray Co., Ltd. Polyvinyl alcohol based diverting agents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE642531C (de) * 1932-12-25 1937-03-08 Chemische Forschungs Gmbh Verfahren zur Herstellung von polymerem Vinylalkohol
US2266996A (en) * 1938-05-18 1941-12-23 Du Pont Hydrolysis of polymerized vinyl esters
US2481388A (en) * 1945-08-24 1949-09-06 Du Pont Hydrolysis of polyvinyl esters
US2502715A (en) * 1948-02-19 1950-04-04 Shawinigan Chem Ltd Process for the production of polyvinyl alcohol by alkaline alcoholysis

Also Published As

Publication number Publication date
US2734048A (en) 1956-02-07
GB691825A (en) 1953-05-20

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