ES247008A1 - Un método de polimerizar una masa polimerizable que contiene estireno - Google Patents

Un método de polimerizar una masa polimerizable que contiene estireno

Info

Publication number
ES247008A1
ES247008A1 ES0247008A ES247008A ES247008A1 ES 247008 A1 ES247008 A1 ES 247008A1 ES 0247008 A ES0247008 A ES 0247008A ES 247008 A ES247008 A ES 247008A ES 247008 A1 ES247008 A1 ES 247008A1
Authority
ES
Spain
Prior art keywords
hours
maintaining
temperature
heating
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
ES0247008A
Other languages
English (en)
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Publication of ES247008A1 publication Critical patent/ES247008A1/es
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
    • C08F4/28—Oxygen or compounds releasing free oxygen
    • C08F4/32—Organic compounds
    • 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
    • C08F12/00—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 an aromatic carbocyclic ring
    • C08F12/02—Monomers containing only one unsaturated aliphatic radical
    • C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F12/06—Hydrocarbons
    • C08F12/08—Styrene
    • 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
    • C08F4/28—Oxygen or compounds releasing free oxygen
    • C08F4/32—Organic compounds
    • C08F4/38—Mixtures of peroxy-compounds

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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Un método de polimerizar una masa polimerizable que contiene estireno y que consiste en mezclar con dicha masa una combinación catalizadora compuesta de 007 a 011 por ciento de perbenzoato de butilo terciario y 011 a 007 por ciento de peróxido de benzoilobasándose dichos porcentajes en el peso del estireno contenido en dicha masacalentar la masa que contiene catalizador a una temperatura de como 100º C. en un lapso de como 08 a 12 horas y mantener esa temperatura durante como 18 a 22 horascalentar luego dicha masa que contiene catalizador a una temperatura de como 115ºC. en un periodo de 04 a 06 horas y mantener esa temperatura durante como 18 a 22 horasy calentar después dicha masa que contiene catalizador a una temperatura de como 135ºC. en un lapso de como 04 a 08 horas y mantener esa temperatura por espacio de hasta como una horacon lo que se permite que la concentración de radicales libres de dicha masa que contiene catalizador aumente tan sólo en una cantidad muy ligera durante las etapas sucesivas de calentamiento y se efectúa una polimerización virtualmente completa durante la etapa final de calentamiento.
ES0247008A 1958-02-03 1959-02-03 Un método de polimerizar una masa polimerizable que contiene estireno Expired ES247008A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US712840A US2907756A (en) 1958-02-03 1958-02-03 Styrene polymerization process

Publications (1)

Publication Number Publication Date
ES247008A1 true ES247008A1 (es) 1959-09-01

Family

ID=24863774

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0247008A Expired ES247008A1 (es) 1958-02-03 1959-02-03 Un método de polimerizar una masa polimerizable que contiene estireno

Country Status (8)

Country Link
US (1) US2907756A (es)
BE (1) BE575339A (es)
CH (1) CH398976A (es)
DE (1) DE1136489B (es)
ES (1) ES247008A1 (es)
FR (1) FR1220192A (es)
GB (1) GB848620A (es)
NL (2) NL123461C (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1297689A (fr) * 1960-09-23 1962-06-29 Koppers Co Inc Perfectionnements apportés aux procédés pour la polymérisation en suspension aboutissant à l'obtention de particules de dimensions déterminées
US3817965A (en) * 1968-02-27 1974-06-18 Aquitaine Petrole Polymerization of vinyl compounds in suspension
US4125696A (en) * 1977-01-06 1978-11-14 Pennwalt Corporation Polymerization process using di-t-butyl diperoxycarbonate as a finishing catalyst
US4097408A (en) * 1977-01-06 1978-06-27 Pennwalt Corporation Diperoxyester mixture prepared by reacting dihydroperoxides and carbonyls
US4129703A (en) * 1977-01-06 1978-12-12 Pennwalt Corporation Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages
US4125695A (en) * 1977-01-06 1978-11-14 Pennwalt Corporation Polymerization process with reduced cycle time employing polyfunctional free radical initiators
US4130700A (en) * 1977-01-06 1978-12-19 Pennwalt Corporation Polymerization process using diperoxy ketals as finishing catalysts
US4137388A (en) * 1978-01-06 1979-01-30 United States Steel Corporation Polystyrene with distinct moieties of molecular weight distribution
CA1209744A (en) * 1980-12-31 1986-08-12 James G. Murray Method for suspension polymerization of styrenic monomers
US4367320A (en) * 1980-12-31 1983-01-04 Mobil Oil Corporation Process for suspension polymerization of styrenic monomers
CA2115587A1 (en) * 1993-02-18 1994-08-19 Hayato Kihara Styrene copolymers, polystyrene compositions, processes for producing styrene copolymers, and injection-molded articles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456558A (en) * 1944-10-25 1948-12-14 Monsanto Chemicals Process for the polymerization of styrene and related compounds
US2521754A (en) * 1948-05-07 1950-09-12 Monsanto Chemicals Peroxy polymerization of vinyl aromatic compounds
US2656334A (en) * 1948-09-28 1953-10-20 Koppers Co Inc Catalytic polymerization process
DE1001000B (de) * 1953-08-19 1957-01-17 Distillers Co Yeast Ltd Verfahren zum Polymerisieren eines polymerisierbaren aethylengruppenhaltigen Monomeren durch Suspensions-Polymerisation

Also Published As

Publication number Publication date
CH398976A (fr) 1966-03-15
GB848620A (en) 1960-09-21
FR1220192A (fr) 1960-05-23
NL235733A (es)
NL123461C (es)
DE1136489B (de) 1962-09-13
BE575339A (es)
US2907756A (en) 1959-10-06

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