GB745383A - Improvements in or relating to emulsion polymerisation - Google Patents

Improvements in or relating to emulsion polymerisation

Info

Publication number
GB745383A
GB745383A GB625353A GB625353A GB745383A GB 745383 A GB745383 A GB 745383A GB 625353 A GB625353 A GB 625353A GB 625353 A GB625353 A GB 625353A GB 745383 A GB745383 A GB 745383A
Authority
GB
United Kingdom
Prior art keywords
sodium
methyl
sulphate
polymerization
emulsifying agent
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
GB625353A
Inventor
Arthur William Barnes
Bernard Stephen Dyer
Austin Atkinson Gibson
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Priority to NL74311D priority Critical patent/NL74311C/xx
Priority to GB1494850A priority patent/GB699016A/en
Priority to US226298A priority patent/US2771457A/en
Priority to FR1044755D priority patent/FR1044755A/en
Priority to DEI4269A priority patent/DE926043C/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB625353A priority patent/GB745383A/en
Publication of GB745383A publication Critical patent/GB745383A/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
    • 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

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)

Abstract

Aqueous dispersions of copolymers of a conjugated diolefine and a monolefinic monomer are made by polymerizing an aqueous mixture of the monomers, preferably in the presence of a polymerization catalyst, and introducing into the mixture only after polymerization has commenced but before any coagulation of the polymer dispersion occurs, an emulsifying agent. The emulsifying agent may be added portionwise or continuously during the polymerization and a further portion may be added at the end of the process, which may be different from the original emulsifying agent. The polymerizable mixture may include a chain-terminator, an anti-freeze agent, e.g. methanol, and also "seed" copolymers of the above type. Diolefines mentioned are butadiene-1,3, isoprene, dimethyl butadiene-1,3, and piperylene. The other monomer may be styrene, alpha-methyl styrene, acenaphthylene, vinyl carbazole, vinyl acetate, vinyl pyridine, acrylonitrile, methacrylonitrile, methyl methacrylate, methyl acrylate, methacrylamide, methacrylic acid, or methyl alpha-chloroacrylate. Specified emulsifying agents are sodium lauryl sulphate, sodium oleyl sulphate, sodium cetyl sulphate, the sodium salt of sulphonated castor oil, the sodium salt of sulphonated or sulphated methyl oleate, sodium oleate, sodium palmitate, sodium stearate, and an oleyl alcohol or dioctyl cresol/ethylene oxide condensate. The catalyst may be hydrogen peroxide, potassium persulphate, or a redox system consisting of cumene hydroperoxide or benzoyl peroxide mixed with a ferrous sulphate-potassium pyrophosphate complex, and sorbose or fructose. Chain terminators mentioned are alphatic mercaptans, dialkylxanthogen disulphides, di-(benzoic acid ester) tetra-sulphides, tolyldisulphides, and tolyltrisulphide. The copolymer dispersions may be used in water paints, for coating paper and making films; they may also be mixed with natural or other synthetic latices, e.g. in the production of foamed latex sponge.
GB625353A 1950-06-15 1953-03-06 Improvements in or relating to emulsion polymerisation Expired GB745383A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL74311D NL74311C (en) 1950-06-15
GB1494850A GB699016A (en) 1953-03-06 1950-06-15 Improvements in and relating to the production of vinyl chloride polymers
US226298A US2771457A (en) 1950-06-15 1951-05-14 Production of vinyl chloride polymers
FR1044755D FR1044755A (en) 1950-06-15 1951-06-07 Manufacture of vinyl chloride polymers
DEI4269A DE926043C (en) 1950-06-15 1951-06-16 Process for the preparation of aqueous dispersions of polymers and copolymers of vinyl chloride
GB625353A GB745383A (en) 1953-03-06 1953-03-06 Improvements in or relating to emulsion polymerisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB625353A GB745383A (en) 1953-03-06 1953-03-06 Improvements in or relating to emulsion polymerisation

Publications (1)

Publication Number Publication Date
GB745383A true GB745383A (en) 1956-02-22

Family

ID=9811174

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1494850A Expired GB699016A (en) 1950-06-15 1950-06-15 Improvements in and relating to the production of vinyl chloride polymers
GB625353A Expired GB745383A (en) 1950-06-15 1953-03-06 Improvements in or relating to emulsion polymerisation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1494850A Expired GB699016A (en) 1950-06-15 1950-06-15 Improvements in and relating to the production of vinyl chloride polymers

Country Status (1)

Country Link
GB (2) GB699016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661557A (en) * 1984-06-28 1987-04-28 Basf Aktiengesellschaft Preparation of stable aqueous polymer dispersions which contain an alkenyl-aromatic compound as copolymerized units

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098978A (en) * 1975-11-12 1978-07-04 The B. F. Goodrich Company Process for emulsion polymerization of vinylidene halides and product thereof
EP0070640B2 (en) * 1981-07-20 1990-05-30 Imperial Chemical Industries Plc Production of vinyl chloride polymers
DE3863823D1 (en) * 1987-04-14 1991-08-29 Atochem METHOD FOR PRODUCING VINYL CHLORIDE POLYMERS IN AQUEOUS EMULSION IN THE FORM OF A LATEX FROM MONODISPERSE PARTICLES.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661557A (en) * 1984-06-28 1987-04-28 Basf Aktiengesellschaft Preparation of stable aqueous polymer dispersions which contain an alkenyl-aromatic compound as copolymerized units

Also Published As

Publication number Publication date
GB699016A (en) 1953-10-28

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