GB1329859A - Polymerisation process - Google Patents

Polymerisation process

Info

Publication number
GB1329859A
GB1329859A GB1329859DA GB1329859A GB 1329859 A GB1329859 A GB 1329859A GB 1329859D A GB1329859D A GB 1329859DA GB 1329859 A GB1329859 A GB 1329859A
Authority
GB
United Kingdom
Prior art keywords
polymerization
styrene
acrylonitrile
compound
monomer
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
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals 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
Application filed by Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Publication of GB1329859A publication Critical patent/GB1329859A/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
    • C08F4/28—Oxygen or compounds releasing free oxygen
    • C08F4/32—Organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

1329859 Initiators in addition polymerization processes MONSANTO CHEMICALS Ltd 6 Oct 1971 [6 Nov 1970] 52863/70 Heading C3P An initiating system for the polymerization of olefinically unsaturated monomers comprises a main initiator and, as a coinitiator which encourages the polymerization of substantially all the monomer, a compound of the formula in which each R is a C 1-4 alkyl group. The preferred compound is 1,1,4,4,7,7-hexamethylcyclo-4, 7-diperoxynonane. The main initiator is preferably of the free radical type such as a dialkyl or diacyl peroxide, cumene hydroperoxide, an alkyl perester, or an azodiisobutyronitrile or similar compound. Any monomer or monomer mixture may be polymerized, and the polymerization may be by any well known method. Bulk polymerization is preferred, at 85-220‹ C., especially where a prepolymer is formed in one vessel, and then subsequently transferred to further vessels until polymerization is complete. In the example styrene is bulk polymerized using ditertiary butyl peroxide and the above preferred compound. Other monomers specified are α-methylstyrene, vinyl toluene, methyl acrylate or methacrylate, vinyl chloride, acrylonitrile, methacrylonitrile, styrene/acrylonitrile, styrene/butadiene, or styrene/divinyl benzene. A graft polymer e.g. of styrene and acrylonitrile or polybutadiene, may also be produced.
GB1329859D 1970-11-06 1970-11-06 Polymerisation process Expired GB1329859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5286370 1970-11-06

Publications (1)

Publication Number Publication Date
GB1329859A true GB1329859A (en) 1973-09-12

Family

ID=10465608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1329859D Expired GB1329859A (en) 1970-11-06 1970-11-06 Polymerisation process

Country Status (1)

Country Link
GB (1) GB1329859A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600656A1 (en) 1975-06-30 1977-01-27 Argus Chem CYCLIC PERKETALS AND THEIR USE FOR CROSS-LINKING HIGH DENSITY POLYAETHYLENE
DE2756035A1 (en) * 1977-01-06 1978-07-13 Pennwalt Corp METHOD FOR RADICAL CHAIN POLYMERIZATION OF VINYL MONOMERS
US4197244A (en) * 1975-06-30 1980-04-08 Argus Chemical Corporation Cyclic perketals and their use for cross-linking high density polyethylene
US4267109A (en) 1975-06-30 1981-05-12 Argus Chemical Corporation Cyclic perketals and their use for cross-linking high density polyethylene
WO1996027620A1 (en) * 1995-03-06 1996-09-12 Akzo Nobel N.V. Cyclic ketone peroxides as polymer initiators
WO1997026283A1 (en) * 1996-01-16 1997-07-24 The Dow Chemical Company Free radical polymerization

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600656A1 (en) 1975-06-30 1977-01-27 Argus Chem CYCLIC PERKETALS AND THEIR USE FOR CROSS-LINKING HIGH DENSITY POLYAETHYLENE
US4197244A (en) * 1975-06-30 1980-04-08 Argus Chemical Corporation Cyclic perketals and their use for cross-linking high density polyethylene
US4267109A (en) 1975-06-30 1981-05-12 Argus Chemical Corporation Cyclic perketals and their use for cross-linking high density polyethylene
DE2660923C2 (en) * 1975-06-30 1987-03-19 Argus Chemical Corp., New York, N.Y. Mass for producing cross-linked high density polyethylene and process for its production
DE2756035A1 (en) * 1977-01-06 1978-07-13 Pennwalt Corp METHOD FOR RADICAL CHAIN POLYMERIZATION OF VINYL MONOMERS
WO1996027620A1 (en) * 1995-03-06 1996-09-12 Akzo Nobel N.V. Cyclic ketone peroxides as polymer initiators
WO1997026283A1 (en) * 1996-01-16 1997-07-24 The Dow Chemical Company Free radical polymerization
AU709727B2 (en) * 1996-01-16 1999-09-02 Dow Chemical Company, The Free radical polymerization

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee