BR8104392A - Processo para a preparacao de alcool polivinilco e alcool polivinico por ele obtido - Google Patents

Processo para a preparacao de alcool polivinilco e alcool polivinico por ele obtido

Info

Publication number
BR8104392A
BR8104392A BR8104392A BR8104392A BR8104392A BR 8104392 A BR8104392 A BR 8104392A BR 8104392 A BR8104392 A BR 8104392A BR 8104392 A BR8104392 A BR 8104392A BR 8104392 A BR8104392 A BR 8104392A
Authority
BR
Brazil
Prior art keywords
alcohol
polyvinic
preparation
polyvinyl alcohol
polyvinyl
Prior art date
Application number
BR8104392A
Other languages
English (en)
Inventor
G Roh
Jung H Ter
L Reihs
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 BR8104392A publication Critical patent/BR8104392A/pt

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/802—Heating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
BR8104392A 1980-07-10 1981-07-09 Processo para a preparacao de alcool polivinilco e alcool polivinico por ele obtido BR8104392A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803026144 DE3026144A1 (de) 1980-07-10 1980-07-10 Verfahren zur herstellung von polyvinylalkohol und danach erhaltener polyvinylalkohol

Publications (1)

Publication Number Publication Date
BR8104392A true BR8104392A (pt) 1982-03-30

Family

ID=6106871

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8104392A BR8104392A (pt) 1980-07-10 1981-07-09 Processo para a preparacao de alcool polivinilco e alcool polivinico por ele obtido

Country Status (9)

Country Link
US (1) US4401790A (pt)
EP (1) EP0044027B1 (pt)
JP (1) JPS5747310A (pt)
BR (1) BR8104392A (pt)
DD (1) DD202035A5 (pt)
DE (2) DE3026144A1 (pt)
ES (1) ES8204744A1 (pt)
MX (1) MX159419A (pt)
SU (1) SU1477249A3 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1189869B (it) * 1986-01-28 1988-02-10 Paolo Carlin Procedimento per la produzione in alcool etilico di un polivinile acetato
US4753761A (en) * 1986-11-10 1988-06-28 Agency Of Industrial Science & Technology Method for production of expansible macromolecular material and porous macromolecular membrane
JPS63120702A (ja) * 1986-11-10 1988-05-25 Agency Of Ind Science & Technol 収縮性高分子材料の製造法
IT1235098B (it) * 1989-06-15 1992-06-18 Francesco Carlin Procedimento per la produzione in emulsione acquosa di miscele di alcoli polivinilici e prodotti cosi' ottenuti.
JP3093351B2 (ja) * 1991-08-06 2000-10-03 日本合成化学工業株式会社 塩化ビニルの懸濁重合用分散安定剤、その製造法及び塩化ビニルの懸濁重合法
US5635568A (en) * 1995-08-17 1997-06-03 Isp Investments Inc. Reactive extrusion process for making mixed salts of polymers containing an anhydride, acid or ester side groups
CN1050393C (zh) * 1996-06-03 2000-03-15 兰州维尼纶厂 Pvac直接醇解纺制pva纤维的工业化生产方法
JP4707868B2 (ja) * 2000-06-16 2011-06-22 日本合成化学工業株式会社 ビニルアルコール−ビニルアミン共重合体の製造法
DE10105656A1 (de) 2001-02-08 2002-08-22 Wacker Polymer Systems Gmbh Verfahren zur Herstellung von Polyvinylalkohol
JP4087321B2 (ja) * 2003-09-17 2008-05-21 株式会社クラレ ポリビニルアルコール系重合体およびその製造方法
DE102004062200A1 (de) * 2004-12-23 2006-07-13 Basf Ag Verfahren zur Herstellung von Polyvinylalkohol-Polyether-Pfropfcopolymeren durch Extrusion
KR100837687B1 (ko) * 2005-12-01 2008-06-13 주식회사 코오롱 압출기를 이용한 폴리비닐알코올의 제조방법, 및 이로부터제조되는 고검화형 폴리비닐알코올
CN105189575B (zh) * 2013-05-21 2018-09-28 太阳化学公司 缩醛化聚乙烯醇阻隔涂料
DE102013225178A1 (de) 2013-12-06 2015-06-11 Wacker Chemie Ag Verfahren zur Herstellung von Polyvinylalkohol
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
CN112094366A (zh) * 2020-09-27 2020-12-18 安徽皖维高新材料股份有限公司 一种易溶解絮状聚乙烯醇的制备方法
CN116003670B (zh) * 2021-10-21 2024-07-23 中国石油化工股份有限公司 有机碱在改善聚乙烯醇成型性中的应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE427994A (pt) * 1937-05-10
US2502715A (en) * 1948-02-19 1950-04-04 Shawinigan Chem Ltd Process for the production of polyvinyl alcohol by alkaline alcoholysis
US2779752A (en) * 1953-11-18 1957-01-29 Du Pont Apparatus for chemical reactions passing through viscous phase
US2950271A (en) * 1954-06-29 1960-08-23 Du Pont Alcoholysis of polyvinyl acetate
US3278505A (en) * 1963-10-07 1966-10-11 Kurashiki Rayon Co Process for producing polyvinyl acetate polymers
US3547858A (en) * 1967-05-19 1970-12-15 Monsanto Chemicals Hydrolysis of esters in the molten state
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

Also Published As

Publication number Publication date
EP0044027A1 (de) 1982-01-20
EP0044027B1 (de) 1985-04-03
MX159419A (es) 1989-05-29
DE3026144A1 (de) 1982-02-18
DE3169669D1 (en) 1985-05-09
JPS6259721B2 (pt) 1987-12-12
ES503676A0 (es) 1982-06-01
SU1477249A3 (ru) 1989-04-30
JPS5747310A (en) 1982-03-18
DD202035A5 (de) 1983-08-24
ES8204744A1 (es) 1982-06-01
US4401790A (en) 1983-08-30

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19960709