GB1418560A - Process for preparing styrenic polymer particles - Google Patents

Process for preparing styrenic polymer particles

Info

Publication number
GB1418560A
GB1418560A GB3599373A GB3599373A GB1418560A GB 1418560 A GB1418560 A GB 1418560A GB 3599373 A GB3599373 A GB 3599373A GB 3599373 A GB3599373 A GB 3599373A GB 1418560 A GB1418560 A GB 1418560A
Authority
GB
United Kingdom
Prior art keywords
per cent
monomer
styrene
solution
total
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
GB3599373A
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 Kaseihin Kogyo KK
Sekisui Chemical Co Ltd
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
Sekisui Kaseihin Kogyo KK
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 Plastics Co Ltd, Sekisui Kaseihin Kogyo KK, Sekisui Chemical Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to DE19732338133 priority Critical patent/DE2338133C3/en
Priority to GB3599373A priority patent/GB1418560A/en
Publication of GB1418560A publication Critical patent/GB1418560A/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
    • 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
    • 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
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or 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; Derivatives of such polymers

Abstract

1418560 Particulate systene polymers; foamable products therefrom SEKISUI KAGAKU KOGYO KK and SEKISUI KASEIHIN KOGYO KK 27 July 1973 35993/73 Headings C3P and C3C Particulate styrene polymers (styrene hereinafter includes derivatives thereof and their mixtures) are produced by suspension polymerization in which styrene polymer particles with a size of 0À4 to 1À8 mms. are suspended in water and a catalyst solution comprising 60- 100 wt. per cent of the total catalyst to be used and 1-10 wt. per cent of the total styrene monomer to be used, and a monomer-solution comprising 90-99 wt. per cent of the total monomer to be used and 0-40 wt. per cent of the total catalyst to be used, are independently added to said suspension in a dropwise fashion whilst carrying out the polymerization. The catalyst solution and the monomer solution may contain 0À0025-2 wt. per cent of a surfactant (based on the total monomer), which is soluble in the styrene monomer. The catalyst solution may either be a solution in the styrene monomer alone, or a further solvent such as toluene may also be present. A foaming agent may be present during the polymerization in an amount of 2-20 wt. per cent (based on the weight of particles produced) (n-pentane was used in Example 7) and in Example 5 such an agent is added after polymerization-the particles produced are suspended in water using magnesium pyrophosphate and sodium dodecyl benzene sulphonate, and then propane and butane are fed into the vessel under pressure, whereupon they are absorbed by the suspended polymer particles which are thus rendered foamable. The expandable particles are foamed by immersion in boiling water.
GB3599373A 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles Expired GB1418560A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19732338133 DE2338133C3 (en) 1973-07-27 1973-07-27 Process for the production of styrene polymers
GB3599373A GB1418560A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3599373A GB1418560A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles

Publications (1)

Publication Number Publication Date
GB1418560A true GB1418560A (en) 1975-12-24

Family

ID=10383795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3599373A Expired GB1418560A (en) 1973-07-27 1973-07-27 Process for preparing styrenic polymer particles

Country Status (2)

Country Link
DE (1) DE2338133C3 (en)
GB (1) GB1418560A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055132A1 (en) * 1980-12-23 1982-06-30 Atlantic Richfield Company Process for producing styrene polymer beads of preferred bead size
EP0098130A2 (en) * 1982-06-30 1984-01-11 Rohm And Haas Company The manufacture of crosslinked copolymer beads, the copolymer beads themselves and their use as adsorbents or, on incorporation or addition of functional groups, as ion exchange resins
EP0101943A2 (en) 1982-08-02 1984-03-07 The Dow Chemical Company Ion exchange resins
US4582859A (en) * 1983-12-02 1986-04-15 Rohm And Haas Company Process for producing an expanded seed copolymer and product therefrom
EP0190886A2 (en) * 1985-01-30 1986-08-13 Japan Synthetic Rubber Co., Ltd. Process for preparing large-sized polymer particles
EP0234705A2 (en) * 1986-01-23 1987-09-02 Mitsubishi Yuka Badische Co., Ltd. Process for producing expandable polystyrene beads

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055132A1 (en) * 1980-12-23 1982-06-30 Atlantic Richfield Company Process for producing styrene polymer beads of preferred bead size
EP0098130A2 (en) * 1982-06-30 1984-01-11 Rohm And Haas Company The manufacture of crosslinked copolymer beads, the copolymer beads themselves and their use as adsorbents or, on incorporation or addition of functional groups, as ion exchange resins
EP0098130A3 (en) * 1982-06-30 1985-09-18 Rohm And Haas Company The manufacture of crosslinked copolymer beads, the copolymer beads themselves and their use as adsorbents or, on incorporation or addition of functional groups, as ion exchange resins
EP0101943A2 (en) 1982-08-02 1984-03-07 The Dow Chemical Company Ion exchange resins
EP0101943B1 (en) * 1982-08-02 1990-08-29 The Dow Chemical Company Ion exchange resins
US4582859A (en) * 1983-12-02 1986-04-15 Rohm And Haas Company Process for producing an expanded seed copolymer and product therefrom
EP0190886A2 (en) * 1985-01-30 1986-08-13 Japan Synthetic Rubber Co., Ltd. Process for preparing large-sized polymer particles
EP0190886A3 (en) * 1985-01-30 1988-11-17 Japan Synthetic Rubber Co., Ltd. Process for preparing large-sized polymer particles
EP0234705A2 (en) * 1986-01-23 1987-09-02 Mitsubishi Yuka Badische Co., Ltd. Process for producing expandable polystyrene beads
EP0234705A3 (en) * 1986-01-23 1989-01-25 Mitsubishi Yuka Badische Co., Ltd. Process for producing expandable polystyrene beads

Also Published As

Publication number Publication date
DE2338133C3 (en) 1980-12-18
DE2338133A1 (en) 1975-02-27
DE2338133B2 (en) 1980-04-24

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Legal Events

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