TW200512239A - A process for producing expandable particles of reclaimed styrene resin - Google Patents

A process for producing expandable particles of reclaimed styrene resin

Info

Publication number
TW200512239A
TW200512239A TW093137240A TW93137240A TW200512239A TW 200512239 A TW200512239 A TW 200512239A TW 093137240 A TW093137240 A TW 093137240A TW 93137240 A TW93137240 A TW 93137240A TW 200512239 A TW200512239 A TW 200512239A
Authority
TW
Taiwan
Prior art keywords
reclaimed
styrene resin
polymerization
initiator
particles
Prior art date
Application number
TW093137240A
Other languages
Chinese (zh)
Other versions
TWI309662B (en
Inventor
Hiroshi Nakaguki
Makoto Saitou
Ryusuke Tanaka
Makoto Kunimi
Tetsuya Katou
Original Assignee
Hitachi 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Publication of TW200512239A publication Critical patent/TW200512239A/en
Application granted granted Critical
Publication of TWI309662B publication Critical patent/TWI309662B/en

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
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/30—Polymeric waste or recycled polymer
    • 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
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

A process for producing expandable reclaimed-styrene resin particles (10) which comprises suspending particles of a reclaimed styrene resin as nuclei in an aqueous medium, adding a polymerization initiator to this suspension to infiltrate the initiator into the reclaimed-styrene resin particles, subsequently adding a styrene monomer to conduct polymerization, and then infiltrating a blowing agent into the particles. It is possible to dissolve the polymerization initiator in a styrene monomer and infiltrate this initiator into the reclaimed-styrene resin particles. The polymerization reaction can be conducted while the oxygen concentration in the reaction tank is kept low in at least a later part of the polymerization, whereby the surface (1) can have a high weight-average molecular weight.
TW093137240A 2001-09-12 2002-09-11 A process for producing expandable particles of reclaimed styrene resin TWI309662B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001275950 2001-09-12
JP2001277449 2001-09-13
JP2002054350 2002-02-28
JP2002199579 2002-07-09

Publications (2)

Publication Number Publication Date
TW200512239A true TW200512239A (en) 2005-04-01
TWI309662B TWI309662B (en) 2009-05-11

Family

ID=27482550

Family Applications (2)

Application Number Title Priority Date Filing Date
TW091120747A TWI309661B (en) 2001-09-12 2002-09-11 Expandable particles of reclaimed styrene resin, expanded beads, and molded foam
TW093137240A TWI309662B (en) 2001-09-12 2002-09-11 A process for producing expandable particles of reclaimed styrene resin

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW091120747A TWI309661B (en) 2001-09-12 2002-09-11 Expandable particles of reclaimed styrene resin, expanded beads, and molded foam

Country Status (5)

Country Link
JP (1) JP4912567B2 (en)
KR (1) KR100656257B1 (en)
CN (1) CN100343315C (en)
TW (2) TWI309661B (en)
WO (1) WO2003025052A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI403547B (en) * 2008-01-02 2013-08-01

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006160905A (en) * 2004-12-08 2006-06-22 Hitachi Chem Co Ltd Reclaimed foamable sytrenic resin particle, method for producing the same, reclaimed styrenic foamed bead and reclaimed foamed styrenic resin molded article
DE102007049058A1 (en) * 2007-10-11 2009-04-16 Voxeljet Technology Gmbh Material system and method for modifying properties of a plastic component
KR101654074B1 (en) * 2014-09-30 2016-09-05 현대이피 주식회사 Method for manufacturing expandable polystyrene polymer and expandable polystyrene polymer produced thereby
JP7196078B2 (en) 2017-08-04 2022-12-26 株式会社カネカ EXPANDABLE POLYSTYRENE-BASED RESIN PARTICLES, POLYSTYRENE-BASED PRE-EXPANDED PARTICLES AND EXPANDED MOLDED PRODUCTS
WO2019026966A1 (en) * 2017-08-04 2019-02-07 株式会社カネカ Foamable polystyrene resin particles, polystyrene prefoamed particles, foam-molded article, and methods for producing these
JP7425628B2 (en) * 2020-02-28 2024-01-31 積水化成品工業株式会社 Method for producing styrenic resin foam molded articles, expandable styrenic resin particles, pre-expanded styrenic resin particles, and expandable styrenic resin particles
JP2021147421A (en) * 2020-03-16 2021-09-27 東北資材工業株式会社 Manufacturing method of polystyrene foam
CN114044854B (en) * 2021-11-26 2023-08-22 江苏越升科技股份有限公司 Recovery method and recovery device for waste polystyrene plastic

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311962A (en) * 1976-07-20 1978-02-02 Sekisui Plastics Process for manufacture of expandable polystyrene powder
JPH0811280B2 (en) * 1987-07-06 1996-02-07 マツダ株式会社 Die casting method
JPH0598062A (en) * 1991-10-04 1993-04-20 Sekisui Plastics Co Ltd Foamable styrene resin granule and production thereof
DE4438376A1 (en) * 1994-10-27 1996-05-02 Basf Ag Expandable styrene polymers containing recyclate
JPH08295757A (en) * 1995-04-26 1996-11-12 Hitachi Chem Co Ltd Expandable styrene resin particle and its production
JPH115256A (en) * 1997-06-18 1999-01-12 Menatsuku:Kk Manufacture of foamed styrol containing regenerated bead and foamed styrol molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI403547B (en) * 2008-01-02 2013-08-01

Also Published As

Publication number Publication date
KR100656257B1 (en) 2006-12-11
TWI309661B (en) 2009-05-11
CN1553929A (en) 2004-12-08
TWI309662B (en) 2009-05-11
WO2003025052A1 (en) 2003-03-27
JPWO2003025052A1 (en) 2004-12-24
KR20040033301A (en) 2004-04-21
JP4912567B2 (en) 2012-04-11
CN100343315C (en) 2007-10-17

Similar Documents

Publication Publication Date Title
Shen et al. Control of particle size in dispersion polymerization of methyl methacrylate
TW200512239A (en) A process for producing expandable particles of reclaimed styrene resin
Hattori et al. Highly crosslinked polymer particles by dispersion polymerization
HUP9903337A2 (en) Process for the preparation of polymer particles and foamable polymer particles
Gu et al. Preparation of monodisperse, micron-sized polystyrene particles with single-stage polymerization in aqueous media
PL331086A1 (en) Method of obtaining a particulate polymer
Liu et al. UV light-initiated RAFT polymerization induced self-assembly
PL350621A1 (en) Method of obtaining particles of a polymer
JP2003528179A5 (en)
Pester et al. Modulation of polymer brush properties by tuning dispersity
JPH07292150A (en) Styrenic expandable resin particle and suspension polymerization for obtaining the same
JP2002520458A5 (en)
TW200513470A (en) Polymerization process and control of polymer composition properties
JP2006045256A (en) Thermoplastic acrylic resin foam and method for producing the same
Herrera et al. Morphology control in polystyrene/poly (methyl methacrylate) composite latex particles
DE69926239D1 (en) Additionspolymerisation
JP2004250655A5 (en)
JP7148795B2 (en) Expandable acrylic resin particles, expanded acrylic resin particles, expanded acrylic resin particles
JP2021024885A (en) Foamable Acrylic Resin Particles, Acrylic Resin Foaming Particles and Acrylic Resin Foaming Particle Molds
TW200619286A (en) The form particles of styrene resin, the foam beads of stylene resin and the molding products of the same
Chern et al. Microemulsion polymerization kinetics and mechanisms
AU2003219657A1 (en) Free radical retrograde precipitation polymer dispersions
JP2000086804A (en) Preparation of foamable, methyl methacrylate resin particle
JP2003261603A (en) Method for producing polymethacrylate resin particle
JP4836452B2 (en) Expandable vinyl aromatic polymer beads and methods for their preparation

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees