GB685838A - Production of paste-forming polyvinyl chloride - Google Patents

Production of paste-forming polyvinyl chloride

Info

Publication number
GB685838A
GB685838A GB19346/49A GB1934649A GB685838A GB 685838 A GB685838 A GB 685838A GB 19346/49 A GB19346/49 A GB 19346/49A GB 1934649 A GB1934649 A GB 1934649A GB 685838 A GB685838 A GB 685838A
Authority
GB
United Kingdom
Prior art keywords
emulsifier
agitation
monomer
aqueous
polyvinyl chloride
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
GB19346/49A
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.)
KENNETH HENRY CHARLES BESSANT
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
KENNETH HENRY CHARLES BESSANT
Distillers Co Yeast Ltd
Distillers Co Ltd
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 KENNETH HENRY CHARLES BESSANT, Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical KENNETH HENRY CHARLES BESSANT
Priority to GB19346/49A priority Critical patent/GB685838A/en
Priority to NL154748A priority patent/NL75845C/en
Publication of GB685838A publication Critical patent/GB685838A/en
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
    • 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

Abstract

Vinyl chloride is polymerized in aqueous emulsion in the presence of an emulsifier and a water soluble polymerization catalyst, such as potassium persulphate, with vigorous agitation, the degree of agitation, the concentration of emulsifier, and the phase ratio of monomer to aqueous phase being so adjusted that the emulsion is maintained, at least towards the end of the reaction, at the point of incipient coagulation. Emulsifiers specified are the sodium salt of highly sulphated methyl oleate, and the alkali metal and ammonium salts of monoesters of phthalic acid or lower alkyl nuclear substituted phthalic acids with C4-C18 alkanols, such as the sodium salts of n-butyl, cetyl, and stearyl hydrogen phthalates, the emulsifier concentration preferably being less than 0.5 per cent based on monomer weight. Agitation of a violent and turbulent type, and the use of a relatively high proportion of monomer to aqueous phase favour the production of polymers of the kind desired. The use of carbon tetrachloride in the reaction mixture, and the use of an aqueous medium of pH 9.5 are also specified. The polyvinyl chloride products may have particle sizes of from 0.0005 to 0.005 mm., and form pastes with plasticizers which are smooth and spreadable. Specification 589,715 is referred to.
GB19346/49A 1949-07-22 1949-07-22 Production of paste-forming polyvinyl chloride Expired GB685838A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB19346/49A GB685838A (en) 1949-07-22 1949-07-22 Production of paste-forming polyvinyl chloride
NL154748A NL75845C (en) 1949-07-22 1950-07-11 PROCEDURE FOR PREPARING A VINYL CHLORIDE POLYMER, FROM WHICH A PASTE CAN BE FORMED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19346/49A GB685838A (en) 1949-07-22 1949-07-22 Production of paste-forming polyvinyl chloride

Publications (1)

Publication Number Publication Date
GB685838A true GB685838A (en) 1953-01-14

Family

ID=10127807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19346/49A Expired GB685838A (en) 1949-07-22 1949-07-22 Production of paste-forming polyvinyl chloride

Country Status (2)

Country Link
GB (1) GB685838A (en)
NL (1) NL75845C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890211A (en) * 1953-06-19 1959-06-09 Wingfoot Corp Manufacture of polyvinyl chloride resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890211A (en) * 1953-06-19 1959-06-09 Wingfoot Corp Manufacture of polyvinyl chloride resin

Also Published As

Publication number Publication date
NL75845C (en) 1954-09-15

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