ES473851A1 - Procedimiento para impedir la formacion de espuma durante laeliminacion de monomeros residuales - Google Patents
Procedimiento para impedir la formacion de espuma durante laeliminacion de monomeros residualesInfo
- Publication number
- ES473851A1 ES473851A1 ES473851A ES473851A ES473851A1 ES 473851 A1 ES473851 A1 ES 473851A1 ES 473851 A ES473851 A ES 473851A ES 473851 A ES473851 A ES 473851A ES 473851 A1 ES473851 A1 ES 473851A1
- Authority
- ES
- Spain
- Prior art keywords
- dispersion
- residual monomers
- steam
- vinylchlorid
- polymers
- 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
- C08F6/14—Treatment of polymer emulsions
- C08F6/16—Purification
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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Procedimiento para impedir la formación de espuma durante la eliminación de monómeros residuales desde dispersiones acuosas de polímeros, especialmente de polímeros que contienen cloruro de vinilo, que contienen cantidades usuales de emulgentes y/o de coloides protectores y tienen contenidos de sustancias sólidas comprendidos entre 15 y 55% en peso, por medio de tratamiento con vapor de agua y simultánea puesta en vacío del espacio de gas por encima de la dispersión que se caracteriza porque se insufla a través de la dispersión en estado no condensado 5 hasta 50% en peso, preferentemente 15 hasta 35% en peso del vapor de agua insuflado en la dispersión
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2744462A DE2744462C2 (de) | 1977-10-03 | 1977-10-03 | Verfahren zur Verhinderung der Schaumbildung bei der Restmonomerentfernung aus wäßrigen Polymerdispersionen |
Publications (1)
Publication Number | Publication Date |
---|---|
ES473851A1 true ES473851A1 (es) | 1980-12-16 |
Family
ID=6020555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES473851A Expired ES473851A1 (es) | 1977-10-03 | 1978-10-02 | Procedimiento para impedir la formacion de espuma durante laeliminacion de monomeros residuales |
Country Status (9)
Country | Link |
---|---|
US (1) | US4224437A (es) |
EP (1) | EP0001446B1 (es) |
JP (1) | JPS5488983A (es) |
CA (1) | CA1107431A (es) |
DE (1) | DE2744462C2 (es) |
ES (1) | ES473851A1 (es) |
IT (1) | IT1106174B (es) |
NO (1) | NO152301C (es) |
SE (1) | SE441274B (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19516362C2 (de) * | 1995-05-04 | 1997-12-11 | Buna Sow Leuna Olefinverb Gmbh | Verfahren zur Entmonomerisierung von Syntheselatices |
DE19745580B4 (de) * | 1997-10-15 | 2012-08-16 | Basf Se | Verfahren zur Dampfeinleitung in Polymerdispersionen |
JP3901885B2 (ja) * | 1999-09-14 | 2007-04-04 | 株式会社カネカ | 塩化ビニル系ペースト樹脂ラテックスの消泡方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA450967A (en) * | 1948-08-31 | Burdette Jay | Latex treatment | |
FR713999A (fr) * | 1930-04-17 | 1931-11-05 | Ig Farbenindustrie Ag | Procédé pour la production de produits de polymérisation |
US2462013A (en) * | 1942-11-07 | 1949-02-15 | Standard Oil Dev Co | Stripping of emulsion polymerization latcies |
US2451332A (en) * | 1942-12-05 | 1948-10-12 | Standard Oil Dev Co | Stripping of polymer latices |
US2927065A (en) * | 1957-12-31 | 1960-03-01 | Copolymer Rubber & Chem Corp | Method of processing synthetic rubber latex |
DE1248943C2 (de) * | 1965-07-20 | 1974-03-07 | Basf Ag | Verfahren und Vorrichtung zur diskontinuierlichen Entfernung von Geruchs-stoffen auswaessrigen Polymerisatdispersionen |
CH565335A5 (es) * | 1973-07-31 | 1975-08-15 | Studia Technica Ets | |
DD109394A1 (es) * | 1974-01-30 | 1974-11-05 | ||
ES438975A1 (es) * | 1974-08-14 | 1977-02-16 | Solvay | Un procedimiento para la eliminacion del cloruro de vinilo residual procedente de la polimerizacion en los polimeros decloruro de vinilo. |
DE2440957B2 (de) * | 1974-08-27 | 1977-07-14 | Chemische Werke Hüls AG, 4370 Mari | Kontinuierliches verfahren zur entfernung von monomeren verunreinigungen aus waessrigen dispersionen von homo- und copolymerisaten des vinylchlorids |
NO752264L (es) * | 1974-08-29 | 1976-03-02 | Huels Chemische Werke Ag | |
JPS6020402B2 (ja) * | 1975-02-25 | 1985-05-22 | チッソ株式会社 | 塩化ビニル樹脂から微量の塩化ビニル単量体を分離する方法 |
JPS51127187A (en) * | 1975-04-26 | 1976-11-05 | Kureha Chem Ind Co Ltd | A process and an apparatus for recovering monomers |
DE2521780C2 (de) * | 1975-05-16 | 1982-10-21 | Hoechst Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen Entfernung von Monomeren aus einer wäßrigen Dispersion eines Polymeren |
JPS5855967B2 (ja) * | 1975-07-02 | 1983-12-13 | 信越化学工業株式会社 | ジユウゴウタイスラリ−カラ ミハンノウタンリヨウタイ オヨビ ソノタノ キハツセイユウキセイブンオ ジヨキヨスルホウホウ |
JPS5283404A (en) * | 1975-12-29 | 1977-07-12 | Mitsubishi Monsanto Chem Co | Elimination of monomers |
JPS5914041B2 (ja) * | 1976-02-06 | 1984-04-03 | チッソ株式会社 | 懸濁重合法による塩化ビニル樹脂から塩化ビニル単量体を除去する方法 |
JPS596290B2 (ja) * | 1976-02-28 | 1984-02-10 | チッソ株式会社 | 塩化ビニル樹脂から塩化ビニル単量体を分離回収する方法 |
JPS52107087A (en) * | 1976-03-05 | 1977-09-08 | Daicel Chem Ind Ltd | Removal of volatile substance of styrene polymer |
-
1977
- 1977-10-03 DE DE2744462A patent/DE2744462C2/de not_active Expired
-
1978
- 1978-09-21 US US05/944,404 patent/US4224437A/en not_active Expired - Lifetime
- 1978-09-29 IT IT51307/78A patent/IT1106174B/it active
- 1978-09-29 CA CA312,389A patent/CA1107431A/en not_active Expired
- 1978-10-02 ES ES473851A patent/ES473851A1/es not_active Expired
- 1978-10-02 SE SE7810326A patent/SE441274B/sv not_active IP Right Cessation
- 1978-10-02 NO NO783322A patent/NO152301C/no unknown
- 1978-10-03 EP EP78101057A patent/EP0001446B1/de not_active Expired
- 1978-10-03 JP JP12190978A patent/JPS5488983A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
NO152301C (no) | 1985-09-04 |
US4224437A (en) | 1980-09-23 |
NO783322L (no) | 1979-04-04 |
JPS5488983A (en) | 1979-07-14 |
SE7810326L (sv) | 1979-04-04 |
IT1106174B (it) | 1985-11-11 |
DE2744462A1 (de) | 1979-04-12 |
JPS5615801B2 (es) | 1981-04-13 |
NO152301B (no) | 1985-05-28 |
DE2744462C2 (de) | 1982-09-16 |
SE441274B (sv) | 1985-09-23 |
CA1107431A (en) | 1981-08-18 |
IT7851307A0 (it) | 1978-09-29 |
EP0001446A1 (de) | 1979-04-18 |
EP0001446B1 (de) | 1983-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20010301 |