ES468950A1 - Procedimiento para el tratamiento de una suspension acuosa de un copolimero granulado de cloruro de vinilo y acetato devinilo - Google Patents
Procedimiento para el tratamiento de una suspension acuosa de un copolimero granulado de cloruro de vinilo y acetato deviniloInfo
- Publication number
- ES468950A1 ES468950A1 ES468950A ES468950A ES468950A1 ES 468950 A1 ES468950 A1 ES 468950A1 ES 468950 A ES468950 A ES 468950A ES 468950 A ES468950 A ES 468950A ES 468950 A1 ES468950 A1 ES 468950A1
- Authority
- ES
- Spain
- Prior art keywords
- vinyl acetate
- aqueous suspension
- vinyl chloride
- copolymerization reaction
- phenol
- 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
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
- C08F6/001—Removal of residual monomers by physical means
Landscapes
- 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)
- Polymerisation Methods In General (AREA)
Abstract
Procedimiento para el tratamiento de una suspensión acuosa de un copolímero granulado de cloruro de vinilo y acetato de vinilo, producido a partir de una reacción de copolimerización entre los monómeros en suspensión acuosa y en cuyo método, después del final de la reacción de copolimerización, se libera la presión en un recipiente que contiene la suspensión acuosa mediante ventilación y la suspensión se caliente entonces en un recipiente bajo condiciones tales de temperatura y presión que exista un flujo vaporoso de vapor de agua, cloruro de vinilo residual y acetato de vinilo residual que sale del recipiente; caracterizado porque a la suspensión acuosa se añade, antes del inicio de dicho calentamiento pero después del final de la reacción de copolimerización, una cantidad eficaz de al menos un fenol volátil como el vapor de agua de manera que se evite sustancialmente la polimerización del acetato de vinilo del flujo de salida.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16170/77A GB1583376A (en) | 1977-04-19 | 1977-04-19 | Method of treating suspensions of vinyl chloride/vinyl acetate copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES468950A1 true ES468950A1 (es) | 1979-09-16 |
Family
ID=10072443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES468950A Expired ES468950A1 (es) | 1977-04-19 | 1978-04-19 | Procedimiento para el tratamiento de una suspension acuosa de un copolimero granulado de cloruro de vinilo y acetato devinilo |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4195168A (es) |
| JP (1) | JPS53129281A (es) |
| AU (1) | AU514581B2 (es) |
| BE (1) | BE866153A (es) |
| DE (1) | DE2816568A1 (es) |
| ES (1) | ES468950A1 (es) |
| FR (1) | FR2388002A1 (es) |
| GB (1) | GB1583376A (es) |
| IT (1) | IT1109967B (es) |
| NL (1) | NL7803926A (es) |
| NZ (1) | NZ186891A (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210208A1 (de) * | 1992-03-28 | 1993-09-30 | Hoechst Ag | Verfahren zur Verminderung des Restmonomerengehaltes in wäßrigen Kunststoffdispersionen auf Polyvinylesterbasis |
| US5285006A (en) * | 1992-06-26 | 1994-02-08 | Nalco Chemical Company | Compressor fouling inhibition in vinyl acetate production units |
| DE102005041593A1 (de) * | 2005-09-01 | 2007-03-08 | Wacker Polymer Systems Gmbh & Co. Kg | Verfahren zur Herstellung von Vinylchlorid-Vinylacetat-Mischpolymerisaten in Form deren Festharze |
| KR101047667B1 (ko) * | 2006-08-21 | 2011-07-08 | 주식회사 엘지화학 | 부피비중이 높은 염화비닐-비닐아세테이트 공중합체의제조방법 |
| WO2017047987A1 (ko) * | 2015-09-14 | 2017-03-23 | 주식회사 엘지화학 | 염화비닐-비닐아세테이트 공중합체 및 이의 제조방법 |
| KR101841356B1 (ko) | 2015-09-14 | 2018-03-22 | 주식회사 엘지화학 | 염화비닐-비닐아세테이트 공중합체 및 이의 제조방법 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE810812C (de) * | 1949-06-15 | 1951-08-13 | Basf Ag | Verfahren zur Polymerisation von ungesaettigten organischen Verbindungen |
| US2775625A (en) * | 1953-06-17 | 1956-12-25 | Dow Chemical Co | Inhibiting polymerization of monomeric vinylidene chloride |
| US3308109A (en) * | 1965-01-07 | 1967-03-07 | Du Pont | Process for recovering unpolymerized monomer |
| US3778423A (en) * | 1971-06-28 | 1973-12-11 | Universal Pvc Resins | Method for reducing polymer deposit in polymerization of vinyl chloride |
| US4015064A (en) * | 1974-06-24 | 1977-03-29 | Tenneco Chemicals, Inc. | Manufacture of polyvinyl chloride of low vinyl chloride monomer content |
| JPS5138377A (ja) * | 1974-09-30 | 1976-03-31 | Nissan Chemical Ind Ltd | Netsuanteiseihorienkabiniruno seizoho |
| FR2288109A1 (fr) * | 1974-10-18 | 1976-05-14 | Solvay | Procede pour arreter la polymerisation du chlorure de vinyle en dispersion aqueuse |
| JPS5298079A (en) * | 1976-02-13 | 1977-08-17 | Kanegafuchi Chem Ind Co Ltd | Suspension polymerization of vinyl chloride |
| JPS5322585A (en) * | 1976-08-13 | 1978-03-02 | Kanegafuchi Chem Ind Co Ltd | Removal of vinyl chloride monomer |
-
1977
- 1977-04-19 GB GB16170/77A patent/GB1583376A/en not_active Expired
-
1978
- 1978-04-05 NZ NZ186891A patent/NZ186891A/xx unknown
- 1978-04-05 US US05/893,273 patent/US4195168A/en not_active Expired - Lifetime
- 1978-04-06 AU AU34842/78A patent/AU514581B2/en not_active Expired
- 1978-04-13 NL NL7803926A patent/NL7803926A/xx not_active Application Discontinuation
- 1978-04-14 IT IT22353/78A patent/IT1109967B/it active
- 1978-04-14 JP JP4338878A patent/JPS53129281A/ja active Pending
- 1978-04-17 DE DE19782816568 patent/DE2816568A1/de active Granted
- 1978-04-18 FR FR7811307A patent/FR2388002A1/fr not_active Withdrawn
- 1978-04-19 ES ES468950A patent/ES468950A1/es not_active Expired
- 1978-04-19 BE BE186930A patent/BE866153A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT7822353A0 (it) | 1978-04-14 |
| US4195168A (en) | 1980-03-25 |
| AU514581B2 (en) | 1981-02-19 |
| NL7803926A (nl) | 1978-10-23 |
| JPS53129281A (en) | 1978-11-11 |
| GB1583376A (en) | 1981-01-28 |
| BE866153A (fr) | 1978-10-19 |
| DE2816568C2 (es) | 1989-11-02 |
| FR2388002A1 (fr) | 1978-11-17 |
| IT1109967B (it) | 1985-12-23 |
| AU3484278A (en) | 1979-10-11 |
| NZ186891A (en) | 1979-06-08 |
| DE2816568A1 (de) | 1978-10-26 |
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