GB1172421A - Process of Suspension Polymerization - Google Patents

Process of Suspension Polymerization

Info

Publication number
GB1172421A
GB1172421A GB5067A GB5067A GB1172421A GB 1172421 A GB1172421 A GB 1172421A GB 5067 A GB5067 A GB 5067A GB 5067 A GB5067 A GB 5067A GB 1172421 A GB1172421 A GB 1172421A
Authority
GB
United Kingdom
Prior art keywords
polymerization
aqueous medium
formulation
suspended
polymerized
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
GB5067A
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 Co
Original Assignee
Monsanto Co
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 Co filed Critical Monsanto Co
Publication of GB1172421A publication Critical patent/GB1172421A/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
    • 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
    • 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
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,172,421. Suspension polymerization of aromatic monomers. MONSANTO CO. 2 Jan., 1967 [3 Jan., 1966], No. 50/67. Headings C3G and C3P. A polymerizable formulation containing a vinyl or vinylidene aromatic monomer is suspended in an aqueous medium in the presence of, as the sole suspending agent, 0.02 to 1.0% by weight, based on the aqueous medium, of a partially esterified polyvinyl alcohol containing more than 20 mol. per cent but not more than 35 mol. per cent ester groups and having a viscosity of 5 to 50 centipoises in a 4% by weight aqueous solution at 20‹ C., and in the presence of a water-soluble metal chloride, sulphate, phosphate or nitrate, and the said formulation is polymerized. In one embodiment, a rubber is present in the polymerizable formulation and a portion of the aromatic monomer is grafted thereon during the polymerization. The formulation may be partially polymerized in bulk to form a syrup which is then suspended in the aqueous medium for completion of polymerization. In Examples 1 and 2, syrups obtained by polymerizing styrene in the presence of polybutadiene are suspended in an aqueous medium containing partially hydrolysed polyvinyl acetate, CaCl 2 and a sodium salt of a naphthalene sulphonic acid condensate and polymerization is completed to yield beads. Similarly, in Example 3 a syrup obtained from styrene, acrylonitrile and polybutadiene is polymerized in a medium containing Na 2 SO 4 in place of CaCl 2 .
GB5067A 1966-01-03 1967-01-02 Process of Suspension Polymerization Expired GB1172421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51797966A 1966-01-03 1966-01-03

Publications (1)

Publication Number Publication Date
GB1172421A true GB1172421A (en) 1969-11-26

Family

ID=24062028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5067A Expired GB1172421A (en) 1966-01-03 1967-01-02 Process of Suspension Polymerization

Country Status (3)

Country Link
DE (1) DE1645061A1 (en)
FR (1) FR1507144A (en)
GB (1) GB1172421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405872A1 (en) * 1989-06-30 1991-01-02 Arco Chemical Technology, Inc. Suspension polymerization of styrene and methacrylic acid
EP0410607A2 (en) * 1989-07-27 1991-01-30 Arco Chemical Technology, Inc. Process for producing uniformly sized beads of styrene/methacrylic acid copolymer
EP0683198A1 (en) * 1994-04-28 1995-11-22 Mitsubishi Chemical BASF Company Limited Expandable styrene resin beads and suspension-polymerization process for producing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405872A1 (en) * 1989-06-30 1991-01-02 Arco Chemical Technology, Inc. Suspension polymerization of styrene and methacrylic acid
EP0410607A2 (en) * 1989-07-27 1991-01-30 Arco Chemical Technology, Inc. Process for producing uniformly sized beads of styrene/methacrylic acid copolymer
EP0410607A3 (en) * 1989-07-27 1991-09-25 Arco Chemical Technology Inc. Process for producing uniformly sized beads of styrene/methacrylic acid copolymer
EP0683198A1 (en) * 1994-04-28 1995-11-22 Mitsubishi Chemical BASF Company Limited Expandable styrene resin beads and suspension-polymerization process for producing the same
US5616413A (en) * 1994-04-28 1997-04-01 Mitsubishi Chemical Basf Company Limited Expandable styrene resin beads and suspension-polymerization process for producing the same
KR100346321B1 (en) * 1994-04-28 2002-11-18 미쓰비시카가쿠비에이에스에프 가부시키가이샤 Effervescent styrene resin beads and preparation method thereof

Also Published As

Publication number Publication date
FR1507144A (en) 1967-12-22
DE1645061A1 (en) 1970-03-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees