FR2185638A1 - Scale prevention in polyvinyl halide reactors - by adding oxyacids of P,N or S, or their salts - Google Patents

Scale prevention in polyvinyl halide reactors - by adding oxyacids of P,N or S, or their salts

Info

Publication number
FR2185638A1
FR2185638A1 FR7318867A FR7318867A FR2185638A1 FR 2185638 A1 FR2185638 A1 FR 2185638A1 FR 7318867 A FR7318867 A FR 7318867A FR 7318867 A FR7318867 A FR 7318867A FR 2185638 A1 FR2185638 A1 FR 2185638A1
Authority
FR
France
Prior art keywords
pref
reactors
salts
scale prevention
polyvinyl halide
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.)
Granted
Application number
FR7318867A
Other languages
English (en)
French (fr)
Other versions
FR2185638B1 (it
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
Priority claimed from DE2225236A external-priority patent/DE2225236C3/de
Priority claimed from DE19722248607 external-priority patent/DE2248607A1/de
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of FR2185638A1 publication Critical patent/FR2185638A1/fr
Application granted granted Critical
Publication of FR2185638B1 publication Critical patent/FR2185638B1/fr
Granted 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
    • C08F14/00—Homopolymers and copolymers 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 a halogen
    • C08F14/02—Monomers containing chlorine
    • C08F14/04—Monomers containing two carbon atoms
    • C08F14/06—Vinyl chloride

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
FR7318867A 1972-05-24 1973-05-24 Scale prevention in polyvinyl halide reactors - by adding oxyacids of P,N or S, or their salts Granted FR2185638A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2225236A DE2225236C3 (de) 1972-05-24 1972-05-24 Verfahren zur Polymerisation von Vinylchlorid
DE19722248607 DE2248607A1 (de) 1972-10-04 1972-10-04 Verfahren zur herstellung von polyvinylhalogeniden

Publications (2)

Publication Number Publication Date
FR2185638A1 true FR2185638A1 (en) 1974-01-04
FR2185638B1 FR2185638B1 (it) 1976-05-07

Family

ID=25763309

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7318867A Granted FR2185638A1 (en) 1972-05-24 1973-05-24 Scale prevention in polyvinyl halide reactors - by adding oxyacids of P,N or S, or their salts
FR7413362A Expired FR2230660B1 (it) 1972-05-24 1974-04-17

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7413362A Expired FR2230660B1 (it) 1972-05-24 1974-04-17

Country Status (5)

Country Link
CH (1) CH576491A5 (it)
DD (1) DD106851A5 (it)
ES (1) ES415009A1 (it)
FR (2) FR2185638A1 (it)
IT (1) IT985114B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400041A1 (fr) * 1977-08-09 1979-03-09 Sumitomo Chemical Co Equipements de polymerisation de monomeres de chlorure de vinyle, et procede de polymerisation les utilisant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5589315A (en) * 1978-12-27 1980-07-05 Kureha Chem Ind Co Ltd Production of graft polymer
EP0556053B2 (en) * 1992-02-13 2001-08-29 European Vinyls Corporation Technology Ag Polymerisation process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2062531A5 (it) * 1969-09-24 1971-06-25 Wacker Chemie Gmbh
FR2086635A5 (en) * 1970-04-03 1971-12-31 Pechiney Saint Gobain Vinyl chloride polymers - by aqs emulsion polymerisation in reaction medium contg an emulsifier, org peroxide and reducing age

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE324767B (it) * 1968-11-14 1970-06-15 Fosfatbolaget Ab

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2062531A5 (it) * 1969-09-24 1971-06-25 Wacker Chemie Gmbh
FR2086635A5 (en) * 1970-04-03 1971-12-31 Pechiney Saint Gobain Vinyl chloride polymers - by aqs emulsion polymerisation in reaction medium contg an emulsifier, org peroxide and reducing age

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400041A1 (fr) * 1977-08-09 1979-03-09 Sumitomo Chemical Co Equipements de polymerisation de monomeres de chlorure de vinyle, et procede de polymerisation les utilisant

Also Published As

Publication number Publication date
FR2230660A1 (it) 1974-12-20
FR2185638B1 (it) 1976-05-07
IT985114B (it) 1974-11-30
ES415009A1 (es) 1976-02-16
CH576491A5 (it) 1976-06-15
DD106851A5 (it) 1974-07-05
FR2230660B1 (it) 1977-07-15

Similar Documents

Publication Publication Date Title
BE774600A (fr) Procede pour la polymerisation selective d'alpha-olefines
IT963209B (it) Metodo per la polimerizzazione o copolimerizzazione di etilene
BE785332A (fr) Procede pour la polymerisation stereoreguliere des alpha-olefines
DK136830B (da) Fremgangsmåde til polymerisation af ethylen alene eller sammen med en eller flere andre alfa-olefiner samt katalysator til brug ved fremgangsmåden.
ES410103A1 (es) Instalacion para purificacion mecanico-biologica de agua residual.
BE802601A (fr) Polymerisation catalytique d'alpha-olefines
FR2542319B1 (fr) Procede pour la polymerisation dans un milieu aqueux de mise en suspension du fluorure de vinylidene
RO62291A (fr) Procede pour obtenir un catalyseur pour la polymerisation des olefines
NL158886B (nl) Koppeling voor drukmediumleidingen onder water.
BE829742A (fr) Dispositif de melange de produits chimiques a l'eau courante
SE7508121L (sv) Forfarande for forbettring av stabiliteten for en vatten-i-olja-emulsion av en finfordelad katjoniskt modifierad akrylamidpolymer.
ES412417A1 (es) Unidad de construccion de chapa metalica.
FR2185638A1 (en) Scale prevention in polyvinyl halide reactors - by adding oxyacids of P,N or S, or their salts
OA04799A (fr) Procédé et installation pour le dessalement de l'eau de mer.
BE786661A (fr) Procede de production de copolymeres ethylene/butene-1 et d'homopolymeres d'ethylene
IT1037655B (it) Reattore per la depurazione fluida
NL155838B (nl) Reactor voor continue polymerisatie.
BE782834A (fr) Procede d'attenuation du virus des oreillons
BE815349A (fr) Dispositif optoelectrique pour detecter la presence d'un milieuliquide
SU464429A1 (ru) Станок дл анодно-механической резки
SE401002B (sv) Anordning for uppsamling av fremmande vetskor, serskilt olja, fran en vattenyta
CH554587A (de) Druckwasserreaktoranlage.
SU793622A1 (ru) Гидродинамическа роторна мешалка
IT938515B (it) Macchina per la riproduzione di bassorilievi incisioni sagomature e simili
DK137460B (da) Fremgangsmåde til polymerisation af ethylen alene eller i blanding med en eller flere andre alfa-olefiner og katalysator til brug herved.

Legal Events

Date Code Title Description
ST Notification of lapse