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 residuales

Info

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
Application number
ES473851A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of ES473851A1 publication Critical patent/ES473851A1/es
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
    • 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
ES473851A 1977-10-03 1978-10-02 Procedimiento para impedir la formacion de espuma durante laeliminacion de monomeros residuales Expired ES473851A1 (es)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
SE7810326L (sv) 1979-04-04
JPS5615801B2 (es) 1981-04-13
IT7851307A0 (it) 1978-09-29
DE2744462C2 (de) 1982-09-16
CA1107431A (en) 1981-08-18
EP0001446A1 (de) 1979-04-18
SE441274B (sv) 1985-09-23
DE2744462A1 (de) 1979-04-12
JPS5488983A (en) 1979-07-14
NO783322L (no) 1979-04-04
US4224437A (en) 1980-09-23
EP0001446B1 (de) 1983-02-23
IT1106174B (it) 1985-11-11
NO152301B (no) 1985-05-28
NO152301C (no) 1985-09-04

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010301