GB790070A - Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds - Google Patents

Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds

Info

Publication number
GB790070A
GB790070A GB2025255A GB2025255A GB790070A GB 790070 A GB790070 A GB 790070A GB 2025255 A GB2025255 A GB 2025255A GB 2025255 A GB2025255 A GB 2025255A GB 790070 A GB790070 A GB 790070A
Authority
GB
United Kingdom
Prior art keywords
sodium
per cent
ionic
potassium
monomer mixture
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
GB2025255A
Inventor
James Maxwell
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 NL99319D priority Critical patent/NL99319C/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2025255A priority patent/GB790070A/en
Publication of GB790070A publication Critical patent/GB790070A/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
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • 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)
  • Polymerisation Methods In General (AREA)

Abstract

A monomer mixture containing from 50 to 72 per cent of methyl methacrylate and correspondingly 50 to 28 per cent of butadiene-1,3 is polymerized in the presence of a continuous aqueous phase containing initially at least 0.05 per cent of an ionic emulsifying agent based on the total weight of monomers, and a non-ionic emulsifying agent is added when at least 30 per cent of the monomer mixture has been converted to copolymer, the total amounts of the emulsifying agents used being not less than 2.5 per cent and not more than 8 per cent by weight based on the weight of the monomer mixture, the ratio of the total weight of the non-ionic to the ionic emulsifier being at least 0.5 to 1. Ionic emulsifiers specified are sodium oleate, palmitate and stearate, sodium lauryl, oleyl and cetyl sulphates, the sodium salt of sulphated higher secondary alcohols, sodium dodecyl benzene sulphonate, sodium sulphonated castor oil, and the sodium salt of sulphated or sulphonated methyl oleate; non-ionic emulsifiers specified are the condensation products of ethylene oxide with dodecyl alcohol, octyl cresol and fatty acids. Polymerization is preferably carried out in the presence of a catalyst, e.g. hydrogen peroxide, potassium persulphate or a redox system consisting of an organic peroxide or hydroperoxide together with an activator such as a ferrous sulphate/potassium pyrophosphate complex with, if desired, a sugar. Polymerization may be carried out in the presence of a modifier such as C6-C18 mercaptans, e.g. normal and tertiary dodecyl mercaptans, dialkyl xanthogen disulphides, di(benzoic acid ester) tetrasulphides, tolyldisulphide and tolyltrisulphide. The aqueous phase may contain an alkali metal salt or alkali to reduce the viscosity of the final latex, e.g. potassium and sodium chlorides and potassium hydroxide, the pH of the reaction mixture preferably lying between 6 and 10. The latices are used as paints in admixture with pigments such as titanium dioxide, lithopone, ochre, iron oxide, zinc oxide, sienna, phthalocyanine pigments, china clay, barytes, blanc fixe and Paris white, sequestering agents such as sodium pyrophosphate or hexametaphosphate, and ammoniated casein solution. Specifications 745,927 and 749,719 are referred to.
GB2025255A 1955-07-13 1955-07-13 Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds Expired GB790070A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL99319D NL99319C (en) 1955-07-13
GB2025255A GB790070A (en) 1955-07-13 1955-07-13 Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2025255A GB790070A (en) 1955-07-13 1955-07-13 Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds

Publications (1)

Publication Number Publication Date
GB790070A true GB790070A (en) 1958-02-05

Family

ID=10142911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2025255A Expired GB790070A (en) 1955-07-13 1955-07-13 Improvements in or relating to the emulsion polymerisation of olefinically unsaturated compounds

Country Status (2)

Country Link
GB (1) GB790070A (en)
NL (1) NL99319C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264242A (en) * 1961-10-03 1966-08-02 Dow Chemical Co Aqueous dispersions containing alkylated diphenyloxidedisulfonic acid and a non-ionic surface active agent
US3379667A (en) * 1963-03-01 1968-04-23 Bayer Ag Process of emulsifying polybutadiene latices with a mixture of anionic/nonionic emulsifiers
US3506604A (en) * 1966-10-12 1970-04-14 Phillips Petroleum Co Method of making large particle size carboxylated latex and the products obtained
US5378755A (en) * 1993-08-27 1995-01-03 Reichhold Chemicals, Inc. Binding agent
US5403640A (en) * 1993-08-27 1995-04-04 Reichhold Chemicals, Inc. Textile coating and method of using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264242A (en) * 1961-10-03 1966-08-02 Dow Chemical Co Aqueous dispersions containing alkylated diphenyloxidedisulfonic acid and a non-ionic surface active agent
US3379667A (en) * 1963-03-01 1968-04-23 Bayer Ag Process of emulsifying polybutadiene latices with a mixture of anionic/nonionic emulsifiers
US3506604A (en) * 1966-10-12 1970-04-14 Phillips Petroleum Co Method of making large particle size carboxylated latex and the products obtained
US5378755A (en) * 1993-08-27 1995-01-03 Reichhold Chemicals, Inc. Binding agent
US5403359A (en) * 1993-08-27 1995-04-04 Reichhold Chemicals, Inc. Binding agent
US5403640A (en) * 1993-08-27 1995-04-04 Reichhold Chemicals, Inc. Textile coating and method of using the same

Also Published As

Publication number Publication date
NL99319C (en)

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