GB599472A - Improved method of polymerisation - Google Patents

Improved method of polymerisation

Info

Publication number
GB599472A
GB599472A GB2407245A GB2407245A GB599472A GB 599472 A GB599472 A GB 599472A GB 2407245 A GB2407245 A GB 2407245A GB 2407245 A GB2407245 A GB 2407245A GB 599472 A GB599472 A GB 599472A
Authority
GB
United Kingdom
Prior art keywords
water
soluble
salts
specified
sulphur
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
GB2407245A
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.)
MICHAEL CARR ASHWORTH
Imperial Chemical Industries Ltd
Original Assignee
MICHAEL CARR ASHWORTH
Imperial Chemical Industries Ltd
Filing date
Publication date
Application filed by MICHAEL CARR ASHWORTH, Imperial Chemical Industries Ltd filed Critical MICHAEL CARR ASHWORTH
Priority to CH252761D priority Critical patent/CH252761A/en
Priority to FR933717D priority patent/FR933717A/en
Publication of GB599472A publication Critical patent/GB599472A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/28Oxygen or compounds releasing free oxygen

Abstract

Ethylenic substances are polymerized in aqueous media in the presence of a water-soluble persulphate, a water-soluble salt of an oxy-acid of sulphur with reducing properties and a water-soluble metal salt which increases the speed of interaction between the persulphate and the salt of the oxy-acid of sulphur. Monomers specified are vinyl acetate and chloride, vinylidene chloride, styrene and the esters, amides and nitriles of acrylic, methacrylic, fumaric and maleic acids. Persulphates specified are those of ammonia, potassium and sodium. Salts of oxy-acids of sulphur specified are sodium sulphite, hydrosulphite, sulphoxylate, pyrosulphite, bisulphite, metabisulphite and thiosulphate, and addition compounds of any of these with an aldehyde or ketone, such as sodium formaldehyde sulphoxylate. Specified metal salts are cupric, ferric and titanium sulphates, vanadium chloride and silver nitrate. Salts of the higher state of valency are preferred where such exist. The media may also contain soaps, water-soluble long-chain quaternary ammonium salts, citric acid, disodium hydrogen phosphate, water-soluble esters of the fatty alcohols and salts of sulphonated animal and vegetable fats and oils, and water-soluble cellulose ethers. The polymerization may be carried out in a closed vessel with air or an atmosphere of nitrogen or carbon dioxide present.
GB2407245A 1945-09-18 1945-09-18 Improved method of polymerisation Expired GB599472A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH252761D CH252761A (en) 1945-09-18 1946-09-10 Polymerization process.
FR933717D FR933717A (en) 1945-09-18 1946-09-18 Improved polymerization process

Publications (1)

Publication Number Publication Date
GB599472A true GB599472A (en) 1948-03-12

Family

ID=1738112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2407245A Expired GB599472A (en) 1945-09-18 1945-09-18 Improved method of polymerisation

Country Status (1)

Country Link
GB (1) GB599472A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683140A (en) * 1950-12-19 1954-07-06 Du Pont Polymerization of ethylenically unsaturated compounds with vanadous catalyst
DE936358C (en) * 1949-11-03 1955-12-07 Basf Ag Process for polymerizing acrylonitrile
US2763636A (en) * 1952-08-25 1956-09-18 Dow Chemical Co Method of controlling molecular weight of polyacrylonitrile produced in aqueous salt solutions
US2813088A (en) * 1954-09-22 1957-11-12 Wacker Chemie Gmbh Process for making polymeric nitrogencontaining derivatives of acrylamide or acrylamide and acrylonitrile in a strongly acid aqueous medium
US3022266A (en) * 1954-11-05 1962-02-20 Wacker Chemie Gmbh Process for the preparation of acrylonitrille copolymers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE936358C (en) * 1949-11-03 1955-12-07 Basf Ag Process for polymerizing acrylonitrile
US2683140A (en) * 1950-12-19 1954-07-06 Du Pont Polymerization of ethylenically unsaturated compounds with vanadous catalyst
US2763636A (en) * 1952-08-25 1956-09-18 Dow Chemical Co Method of controlling molecular weight of polyacrylonitrile produced in aqueous salt solutions
US2813088A (en) * 1954-09-22 1957-11-12 Wacker Chemie Gmbh Process for making polymeric nitrogencontaining derivatives of acrylamide or acrylamide and acrylonitrile in a strongly acid aqueous medium
US3022266A (en) * 1954-11-05 1962-02-20 Wacker Chemie Gmbh Process for the preparation of acrylonitrille copolymers

Similar Documents

Publication Publication Date Title
GB599472A (en) Improved method of polymerisation
GB948607A (en) Polyacrylic acid derivatives
GB605517A (en) A process for the manufacture of co-polymerisation products
GB859717A (en) Method of polymerizing compounds
GB636232A (en) Polymerisation of vinyl halides
GB1122045A (en) Process for making ethylene terpolymers
GB1009304A (en) Process for the polymerisation of ethylenically unsaturated compounds
GB898821A (en) A process for the production of homopolymers or copolymers from acrylonitrile
GB923473A (en) Acrylonitrile polymerization process
GB1082158A (en) Ethylene/vinyl chloride copolymers
GB837041A (en) Improvements in or relating to polymerisation processes
GB907178A (en) A process for the production of acrylonitrile polymers
GB607735A (en) Polymerization of monoethylenic compounds
GB902704A (en) A process for the production of acrylonitrile polymers
GB954612A (en) Process for the production of acrylonitrile polymers
GB855889A (en) A process for the production of macromolecular polyacroleins
GB573369A (en) Production of polymeric materials
GB1112863A (en) Process for preparing stable,aqueous dispersions of copolymers of vinyl esters and ethylene
GB619620A (en) Polymerization of chloroprene
GB859743A (en) A process for the continuous production of copolymers of ethylene
GB1365825A (en) Polymeric latices and suspensions based on vinyl chloride and vinylidene chloride homo- and co-polymers
GB1439736A (en) Polymerisation process
GB959815A (en) Polymerisation of ethylene in aqueous system
GB1099610A (en) Process for the polymerisation of unsaturated aldehydes
GB1043630A (en) Preparation of film-forming emulsions