ES268817A1 - Process of polymerising vinyl monomers - Google Patents

Process of polymerising vinyl monomers

Info

Publication number
ES268817A1
ES268817A1 ES0268817A ES268817A ES268817A1 ES 268817 A1 ES268817 A1 ES 268817A1 ES 0268817 A ES0268817 A ES 0268817A ES 268817 A ES268817 A ES 268817A ES 268817 A1 ES268817 A1 ES 268817A1
Authority
ES
Spain
Prior art keywords
peroxide
butyl
initiator
lauroyl peroxide
styrene
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
ES0268817A
Other languages
Spanish (es)
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.)
Montedison SpA
Original Assignee
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
Publication of ES268817A1 publication Critical patent/ES268817A1/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
    • C08F4/00—Polymerisation catalysts
    • 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
    • C08F2/02—Polymerisation in bulk
    • 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
    • C08F20/00—Homopolymers and 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
    • C08F20/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)

Abstract

In a process of polymerizing monomers of formula CH2=CXR where X is hydrogen, alkyl or halogen and R is an organic radical to obtain a syrupy solution of polymer in the monomer, the polymerization is carried out in the presence of such a quantity of initiator and at such a temperature that the initiator is completely destroyed and the reaction automatically stopped once the desired conversion is reached, this conversion being lower than 70%. The process may be carried out continuously by continuously feeding monomer and discharging syrup. Specified monomers are acrylic and methacrylic esters, styrene, vinyl acetate and dimethyl itaconate. The initiator may be an organic peroxide or hydroperoxide or an azo compound, e.g. benzoyl peroxide, lauroyl peroxide, di-t.-butyl peroxide, t.-butyl peracetate and azo-bis-isobutyronitrile, and chain transfer agents, e.g. n-butyl, octyl, 2-ethylhexyl and dodecyl mercaptans, may also be present. Examples describe the preparation of syrups by polymerizing methyl methacrylate in the presence of (1) lauroyl peroxide, (2) lauroyl peroxide and n-butyl mercaptan and (4) t.-butyl peroxide and n-octyl mercaptan and by copolymerizing methyl methacrylate with (3) styrene in the presence of lauroyl peroxide and (4) ethylene glycol dimethacrylate in the presence of benzoyl peroxide. Apparatus suitable for carrying out the process is described and illustrated.
ES0268817A 1960-07-07 1961-07-06 Process of polymerising vinyl monomers Expired ES268817A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1193660 1960-07-07

Publications (1)

Publication Number Publication Date
ES268817A1 true ES268817A1 (en) 1962-01-01

Family

ID=11138735

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0268817A Expired ES268817A1 (en) 1960-07-07 1961-07-06 Process of polymerising vinyl monomers

Country Status (6)

Country Link
BE (1) BE605838A (en)
CH (1) CH428223A (en)
DE (1) DE1520234A1 (en)
ES (1) ES268817A1 (en)
GB (1) GB937215A (en)
NL (1) NL266816A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1160698B (en) * 1977-10-06 1987-03-11 Sumitomo Chemical Co PROCEDURE FOR THE CONTINUOUS PRODUCTION OF METHYL METHACRYLATE PREPOLYMER SYRUP
EP0004851B1 (en) * 1978-04-22 1983-07-13 Röhm Gmbh Process for the partial polymerisation of vinyl monomers and use of the polymer syrups obtained
JPS55147514A (en) * 1979-04-27 1980-11-17 Sumitomo Chem Co Ltd Continuous preparation of rubber-modified methyl methacrylate syrup
TW363978B (en) * 1994-05-06 1999-07-11 Akzo Nobel Nv A method of radically (co)polymerizing at least one vinyl halide or vinylidene halide

Also Published As

Publication number Publication date
BE605838A (en)
GB937215A (en) 1963-09-18
NL266816A (en)
CH428223A (en) 1967-01-15
DE1520234A1 (en) 1969-08-14

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