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GB758150A - Improvements in or relating to polymerization - Google Patents

Improvements in or relating to polymerization

Info

Publication number
GB758150A
GB758150A GB19735/54A GB1973554A GB758150A GB 758150 A GB758150 A GB 758150A GB 19735/54 A GB19735/54 A GB 19735/54A GB 1973554 A GB1973554 A GB 1973554A GB 758150 A GB758150 A GB 758150A
Authority
GB
United Kingdom
Prior art keywords
butadiene
styrene
salts
acid
acrylonitrile
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
GB19735/54A
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.)
International Latex Corp
Original Assignee
International Latex Corp
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 International Latex Corp filed Critical International Latex Corp
Publication of GB758150A publication Critical patent/GB758150A/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
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C08F2/22—Emulsion polymerisation
    • C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
    • C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
    • 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

Polymerizable ethylenic monomers are polymerized in aqueous emulsion using as emulsifier a polybasic acid derivative of a hydrocarbon containing at least 20 carbon atoms, the amount of monomer being at least equal in weight to the weight of the aqueous phase and the polymerization being continued until the total solids comprise not less than 40 per cent of the total emulsion. Specified ethylenic materials are butadiene, isoprene, 2,3-dimethyl butadiene, acrylonitrile, methyl styrene, vinyl toluene, vinyl naphthalene, vinyl pyridine, esters of acrylic and substituted acrylic acids, butadiene-styrene, butadiene-styrene-methyl methacrylate and butadiene - styrene - acrylonitrile. Specified emulsifiers are dimerized linoleic acid, the dimers or trimers of octadecatrienoic acids, and hexadecatrienoic acid and their hydrogenation products. The emulsifiers are preferably used as salts, e.g. the potassium salts, and preferably in an amount between 0.3 to 5 parts. Catalysts such as the persulphates or perborates of sodium, potassium or ammonium, hydrogen peroxide, benzoyl peroxide, di-t.-butyl peroxide, cumenehydroperoxide, diisopropylbenzene or di-t.-butyl benzene hydroperoxides, cyclohexylbenzene hydroperoxide, and p-menthanehydroperoxide may be used as may the usual "redox" compounds, e.g. sodium sulphate, ferrous salts, sugars, formaldehyde sulphoxylates and polyethylene polyamines, and modifiers such as dodecyl mercaptan, triisobutylene mercaptan, or mixtures of primary or tertiary C10 to C18 mercaptans. The reaction may be short-stopped, e.g. with a salt of dimethyldithiocarbamic acid. The preferred products are latices having an average particle size visible at 950 times magnification of at least 20,000 ae (or the major proportion of the particles being in the range 7000 to 66,000 ae), a Brookfield viscosity of less than 200 cps. and a total solids content of at least 60 per cent. U.S.A. Specifications 2,379,413 and 2,482,761 are referred to.
GB19735/54A 1953-07-20 1954-07-06 Improvements in or relating to polymerization Expired GB758150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US758150XA 1953-07-20 1953-07-20

Publications (1)

Publication Number Publication Date
GB758150A true GB758150A (en) 1956-10-03

Family

ID=22128153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19735/54A Expired GB758150A (en) 1953-07-20 1954-07-06 Improvements in or relating to polymerization

Country Status (1)

Country Link
GB (1) GB758150A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077344B (en) * 1957-05-31 1960-03-10 Gen Electric Flexible, wire-like insulated electric heater
DE1173251B (en) * 1961-09-20 1964-07-02 Basf Ag Process for the production of emulsion polymers
WO1992003482A2 (en) * 1990-08-23 1992-03-05 Henkel Kommanditgesellschaft Auf Aktien Oligomeric carboxylic acids as stabilizers for emulsion polymerization
WO1999018067A1 (en) * 1997-10-02 1999-04-15 L. Brüggemann KG Sulphinic acid derivatives, method for producing them, and their use

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077344B (en) * 1957-05-31 1960-03-10 Gen Electric Flexible, wire-like insulated electric heater
DE1173251B (en) * 1961-09-20 1964-07-02 Basf Ag Process for the production of emulsion polymers
WO1992003482A2 (en) * 1990-08-23 1992-03-05 Henkel Kommanditgesellschaft Auf Aktien Oligomeric carboxylic acids as stabilizers for emulsion polymerization
WO1992003482A3 (en) * 1990-08-23 1992-05-29 Henkel Kgaa Oligomeric carboxylic acids as stabilizers for emulsion polymerization
WO1999018067A1 (en) * 1997-10-02 1999-04-15 L. Brüggemann KG Sulphinic acid derivatives, method for producing them, and their use
US6211400B1 (en) 1997-10-02 2001-04-03 L. Bruggemann Kg Sulphinic acid derivatives, method for producing them, and their use

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