TW354302B - Process for the preparation of polyvinyl alcohol - Google Patents
Process for the preparation of polyvinyl alcoholInfo
- Publication number
- TW354302B TW354302B TW086100635A TW86100635A TW354302B TW 354302 B TW354302 B TW 354302B TW 086100635 A TW086100635 A TW 086100635A TW 86100635 A TW86100635 A TW 86100635A TW 354302 B TW354302 B TW 354302B
- Authority
- TW
- Taiwan
- Prior art keywords
- polyvinyl alcohol
- preparation
- stirrer
- diameter
- stirring
- Prior art date
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
- C08F118/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F118/02—Esters of monocarboxylic acids
- C08F118/04—Vinyl esters
- C08F118/08—Vinyl acetate
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19602901A DE19602901A1 (de) | 1996-01-27 | 1996-01-27 | Verfahren zur Herstellung von Polyvinylalkohol |
Publications (1)
Publication Number | Publication Date |
---|---|
TW354302B true TW354302B (en) | 1999-03-11 |
Family
ID=7783831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086100635A TW354302B (en) | 1996-01-27 | 1997-01-21 | Process for the preparation of polyvinyl alcohol |
Country Status (6)
Country | Link |
---|---|
US (1) | US5914369A (zh) |
EP (1) | EP0786478A3 (zh) |
JP (1) | JPH09227623A (zh) |
KR (1) | KR970059192A (zh) |
DE (1) | DE19602901A1 (zh) |
TW (1) | TW354302B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054530A (en) * | 1998-03-11 | 2000-04-25 | Air Products And Chemicals, Inc. | Continuous process for the preparation of poly(vinyl acetate) for poly(vinyl alcohol) production |
DE10242416B4 (de) * | 2002-09-12 | 2007-08-09 | Wacker Polymer Systems Gmbh & Co. Kg | Verfahren zur Herstellung von Polyvinylalkohol |
KR100759188B1 (ko) * | 2005-10-28 | 2007-09-14 | 주식회사 엘지화학 | 고중합도를 갖는 폴리비닐알코올의 제조방법 및 제조장치 |
MX279004B (es) | 2006-06-22 | 2010-09-14 | Basf Se | Polisulfonas y polietersulfonas con indice de amarillez reducido y procesos para su preparacion. |
KR101113042B1 (ko) * | 2006-11-20 | 2012-02-13 | 주식회사 엘지화학 | 균일한 입자크기를 가지는 폴리비닐알코올의 제조 방법 및그 제조방법에 의해 제조된 폴리비닐알코올 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE763840C (de) * | 1937-05-10 | 1955-02-14 | Chemische Forschungs Gmbh | Verfahren zur Herstellung von polymeren Vinylalkoholen |
US2642419A (en) * | 1950-01-31 | 1953-06-16 | Eastman Kodak Co | Preparation of polyvinyl alcohol |
US2643994A (en) * | 1950-03-30 | 1953-06-30 | Shawinigan Chem Ltd | Continuous process for the alkaline alcoholysis of polyvinyl esters |
US2734048A (en) * | 1950-04-22 | 1956-02-07 | Chsoh | |
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 |
US3386981A (en) * | 1959-02-05 | 1968-06-04 | Kurashiki Rayon Co | Method of mixing a relatively viscous liquid with a relatively non-viscous liquid |
US3072624A (en) * | 1959-12-29 | 1963-01-08 | Kurashiki Rayon Co | Saponification process for preparation of polyvinyl alcohol |
GB993893A (en) * | 1962-08-01 | 1965-06-02 | Mini Of The Rumanian Ministry | Process for the preparation of polyvinyl alcohol of a high degree of crystallisation |
US3300460A (en) * | 1962-10-24 | 1967-01-24 | Cumberland Chemical Corp | Process for mixing polyvinyl acetate with saponification catalyst |
US3278505A (en) | 1963-10-07 | 1966-10-11 | Kurashiki Rayon Co | Process for producing polyvinyl acetate polymers |
CS150962B2 (zh) * | 1967-09-09 | 1973-09-17 | ||
DE1720806C2 (de) | 1968-03-19 | 1982-09-23 | Hoechst Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen Polymerisation von Vinylestern |
JPS5217870B2 (zh) * | 1973-01-31 | 1977-05-18 | ||
SU891691A1 (ru) * | 1979-09-24 | 1981-12-23 | Предприятие П/Я Р-6956 | Способ получени поливинилового спирта |
DE3000750C2 (de) * | 1980-01-10 | 1986-10-30 | Wacker-Chemie GmbH, 8000 München | Verfahren zur Herstellung von Polyvinylalkohol |
US4338405A (en) * | 1980-12-12 | 1982-07-06 | E. I. Du Pont De Nemours And Company | Process for continuous controlled alcoholysis of polyvinyl acetate |
-
1996
- 1996-01-27 DE DE19602901A patent/DE19602901A1/de not_active Withdrawn
-
1997
- 1997-01-21 TW TW086100635A patent/TW354302B/zh active
- 1997-01-22 EP EP97100916A patent/EP0786478A3/de not_active Withdrawn
- 1997-01-24 KR KR1019970001977A patent/KR970059192A/ko not_active Application Discontinuation
- 1997-01-24 JP JP9011485A patent/JPH09227623A/ja not_active Withdrawn
- 1997-01-27 US US08/789,465 patent/US5914369A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0786478A3 (de) | 1998-03-18 |
KR970059192A (ko) | 1997-08-12 |
US5914369A (en) | 1999-06-22 |
DE19602901A1 (de) | 1997-08-07 |
JPH09227623A (ja) | 1997-09-02 |
EP0786478A2 (de) | 1997-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU6879387A (en) | A process for the dry cationization of starch | |
TW354302B (en) | Process for the preparation of polyvinyl alcohol | |
NZ287862A (en) | Preparation of <alpha>-methoxyiminocarboxylic acid methylamides by pinner reaction of <alpha>-ketonitriles, oxime formation and methylation | |
ES486850A1 (es) | Procedimiento mejorado para la preparacion de acido 1h-te- trazol-1-acetico o de sus esteres | |
CA2118378A1 (en) | Preparation of 5-acetoacetylamino-2-benzimidazolone | |
GB2014990A (en) | Process for preparing an optically active benzamide, the optically active benzamide so obtained and pharmaceutical compositions containing it | |
IE811462L (en) | Preparing tylactone. | |
IL141597A0 (en) | Chemical process for preparing 2-hydroxy-6-trifluoromethylpyridine | |
AU5014296A (en) | Process for preparing asymmetric compound by using metal complex | |
AU7928587A (en) | Glass batch feeder | |
ES480211A1 (es) | Procedimiento de preparacion de derivados de osidos. | |
JPS6452794A (en) | Sialic acid-containing thioglycerolipid derivative and production thereof | |
WO2001009102A3 (en) | Process for preparing 1,5-diaryl-3-substituted pyrazoles | |
HUT38891A (en) | Process for preparing halogenated 3,3-dimethyl-5-hexen-2-one-derivatives | |
AU2940095A (en) | A process (ii) for making potassium formate | |
JPS57114547A (en) | Anthracycline antibiotic substance and its preparation | |
JPS57112400A (en) | Sterol saccharide and drug containing the same | |
JPS5625166A (en) | 5-fluorouracil derivative | |
JPS56138143A (en) | Beta-formyl-beta-hydroxy ester and its preparation | |
JPS5534207A (en) | Preparation of carboxymethyl starch and its alkali salt | |
JPS5452791A (en) | Preparation of d-alpha-amino acid | |
JPS57152894A (en) | Preparation of optically active carboxylic acid ester and optically active carboxylic acid | |
JPS5683453A (en) | Novel preparation of 1- o-propenylphenoxy -2-hydroxy-3- isopropylaminopropane | |
DE3268384D1 (en) | Process for preparing 2,4-dihydroxypyrimidine (uracil) | |
JPS57126499A (en) | 4'-deoxymycaminosyl tylonoline derivative |