GB1255237A - Improvements in the production of styrene polymers of substantially uniform particle size - Google Patents

Improvements in the production of styrene polymers of substantially uniform particle size

Info

Publication number
GB1255237A
GB1255237A GB1770769A GB1770769A GB1255237A GB 1255237 A GB1255237 A GB 1255237A GB 1770769 A GB1770769 A GB 1770769A GB 1770769 A GB1770769 A GB 1770769A GB 1255237 A GB1255237 A GB 1255237A
Authority
GB
United Kingdom
Prior art keywords
styrene
suspension
polymer
monomer
pentane
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
GB1770769A
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Publication of GB1255237A publication Critical patent/GB1255237A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
    • 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
    • C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
    • C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,255,237. Particulate polymers of styrene and its derivatives. SEKISUI KAGAKU KOGYO K.K. 3 April, 1969 [6 April, 1968], No. 17707/69. Headings C3C and C3P. Particulate polymers of styrene, which may have one or more substituents in the benzene nucleus, α-methyl styrene or chlorinated styrene, are made by forming a suspension in water of particles of the polymer of uniform diameter within the range 0.4-1.2 mm., adding styrene or its derivatives and a suspension polymerization catalyst, initiating polymerization and adding monomer continuously or intermittently at a rate such that the amount of monomer in suspension never exceeds 1.5 times the weight of the polymer in suspension. The suspension may contain an expanding agent, e.g. butane or pentane, which is not a solvent for the polymer or soluble in it and has a b.p. or decomposition point lower than the softening temperature of the polymer. In the examples styrene was polymerized in aq. suspension containing polyvinyl alcohol, copper acetate (to prevent monomer graft-polymerizing with the polyvinyl alcohol), benzoyl peroxide, magnesium pyrophosphate, sodium dodecylbenzenesulphonate, methyl methacrylate, butane, acrylonitrile and/or pentane.
GB1770769A 1968-04-06 1969-04-03 Improvements in the production of styrene polymers of substantially uniform particle size Expired GB1255237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2302268 1968-04-06

Publications (1)

Publication Number Publication Date
GB1255237A true GB1255237A (en) 1971-12-01

Family

ID=12098845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1770769A Expired GB1255237A (en) 1968-04-06 1969-04-03 Improvements in the production of styrene polymers of substantially uniform particle size

Country Status (4)

Country Link
DE (1) DE1917090C3 (en)
FR (1) FR2005711A1 (en)
GB (1) GB1255237A (en)
NL (1) NL153214B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271281A (en) 1980-05-29 1981-06-02 American Hoechst Corporation Process for preparing styrenic polymer particles
EP0053039A1 (en) * 1980-11-26 1982-06-02 Cellofoam A.G. Method of making expandable polymeric particles
US4614708A (en) * 1981-11-23 1986-09-30 Agfa-Gevaert, N.V. Method for the preparation of stable aqueous dispersions of polymer beads and the use of these dispersions in photographic elements
EP0488025A2 (en) * 1990-11-21 1992-06-03 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Method for manufacturing expandable polystyrene particles
WO2000061647A1 (en) * 1999-04-09 2000-10-19 Dynal Particles As Process for the preparation of monodisperse polymer particles
US6239224B1 (en) 1997-10-10 2001-05-29 Polymer Systems As Method of production of particulate polymers
AU749916B2 (en) * 1997-10-10 2002-07-04 Polymer Systems As Method of production of particulate polymers
US9453083B2 (en) 2013-03-14 2016-09-27 Saudi Basic Industries Corporation Vinyl polymers prepared via suspension polymerization and methods thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556204A1 (en) * 1975-12-13 1977-06-16 Bayer Ag Process for the preparation of foamable polysulfone particles
GB1594863A (en) * 1978-03-03 1981-08-05 Int Synthetic Rubber Emulsion polymerisation process
FR2463807A1 (en) * 1979-08-24 1981-02-27 Pasteur Institut Biological molecule fixation on magnetic vinyl-aromatic polymers - adsorbed proteins e.g. bacteria, viruses, cells, antigens, antibodies are used in sepn. processes and determinations
US4419245A (en) * 1982-06-30 1983-12-06 Rohm And Haas Company Copolymer process and product therefrom consisting of crosslinked seed bead swollen by styrene monomer
DE10105103A1 (en) * 2001-02-05 2002-08-08 Bayer Ag Process for the preparation of gel-like cation exchangers

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041357A1 (en) * 1980-05-29 1981-12-09 American Hoechst Corporation Suspension polymerisation process for preparing polymer particles
US4271281A (en) 1980-05-29 1981-06-02 American Hoechst Corporation Process for preparing styrenic polymer particles
EP0053039A1 (en) * 1980-11-26 1982-06-02 Cellofoam A.G. Method of making expandable polymeric particles
US4614708A (en) * 1981-11-23 1986-09-30 Agfa-Gevaert, N.V. Method for the preparation of stable aqueous dispersions of polymer beads and the use of these dispersions in photographic elements
EP0488025A2 (en) * 1990-11-21 1992-06-03 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Method for manufacturing expandable polystyrene particles
EP0488025B1 (en) * 1990-11-21 1996-10-23 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Method for manufacturing expandable polystyrene particles
AU749916B2 (en) * 1997-10-10 2002-07-04 Polymer Systems As Method of production of particulate polymers
US6239224B1 (en) 1997-10-10 2001-05-29 Polymer Systems As Method of production of particulate polymers
WO2000061647A1 (en) * 1999-04-09 2000-10-19 Dynal Particles As Process for the preparation of monodisperse polymer particles
US7217762B1 (en) 1999-04-09 2007-05-15 Invitrogen Corporation Process for the preparation of monodisperse polymer particles
EP1985639A3 (en) * 1999-04-09 2008-11-12 Invitrogen Dynal AS Process for the preparation of monodisperse polymer particles
US8658733B2 (en) 1999-04-09 2014-02-25 Life Technologies As Process for the preparation of monodisperse polymer particles
US9309368B2 (en) 1999-04-09 2016-04-12 Life Technologies As Process for the preparation of monodisperse polymer particles
US9453083B2 (en) 2013-03-14 2016-09-27 Saudi Basic Industries Corporation Vinyl polymers prepared via suspension polymerization and methods thereof

Also Published As

Publication number Publication date
DE1917090C3 (en) 1980-04-24
NL153214B (en) 1977-05-16
FR2005711A1 (en) 1969-12-12
NL6905307A (en) 1969-10-08
DE1917090A1 (en) 1969-11-06
DE1917090B2 (en) 1979-08-16

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