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WO2002038659A3 - Solvent system for collapsing foamed polystyrene - Google Patents

Solvent system for collapsing foamed polystyrene Download PDF

Info

Publication number
WO2002038659A3
WO2002038659A3 PCT/US2001/032366 US0132366W WO0238659A3 WO 2002038659 A3 WO2002038659 A3 WO 2002038659A3 US 0132366 W US0132366 W US 0132366W WO 0238659 A3 WO0238659 A3 WO 0238659A3
Authority
WO
WIPO (PCT)
Prior art keywords
parts
weight
solvent system
collapsing
dialkyl
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.)
Ceased
Application number
PCT/US2001/032366
Other languages
French (fr)
Other versions
WO2002038659A2 (en
Inventor
Iii Nicholas Edward Kob
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to AU2002213306A priority Critical patent/AU2002213306A1/en
Publication of WO2002038659A2 publication Critical patent/WO2002038659A2/en
Publication of WO2002038659A3 publication Critical patent/WO2002038659A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

An improved solvent system useful for collapsing foamed polystyrene comprising for every 100 parts by weight of a dibasic organic acid ester selected from the group consisting of dialkyl adipate, dialkyl glutarate, dialkyl succinate and mixtures thereof, wherein said alkyl groups are either identical or different and have from 1 to 12 carbon atoms, at least one cosolvent selected from the group consisting of (i) from 10 to 66.7 parts by weight ethylene glycol, (ii) from 10 to 66.7 parts by weight propylene glycol, (iii) from 17.6 to 42.8 parts by weight propylene carbonate, (iv) from 53.8 to 66.7 parts by weight dimethyl sulfoxide, (v) from 53.8 to 66.7 parts by weight diacetone alcohol, and (vi) from 42.8 to 66.7 parts by weight isopropyl alcohol. Such a solvent system is particular useful is recycling and recovering polystyrene.
PCT/US2001/032366 2000-11-08 2001-10-18 Solvent system for collapsing foamed polystyrene Ceased WO2002038659A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002213306A AU2002213306A1 (en) 2000-11-08 2001-10-18 Solvent system for collapsing foamed polystyrene

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70831300A 2000-11-08 2000-11-08
US09/708,313 2000-11-08

Publications (2)

Publication Number Publication Date
WO2002038659A2 WO2002038659A2 (en) 2002-05-16
WO2002038659A3 true WO2002038659A3 (en) 2002-07-11

Family

ID=24845299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/032366 Ceased WO2002038659A2 (en) 2000-11-08 2001-10-18 Solvent system for collapsing foamed polystyrene

Country Status (2)

Country Link
AU (1) AU2002213306A1 (en)
WO (1) WO2002038659A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3786943B2 (en) * 2004-02-26 2006-06-21 有限会社小田産業 Defoaming shrinkage agent and defoaming shrinkage method for polystyrene foam
ITMI20051409A1 (en) * 2005-07-22 2007-01-23 Polimeri Europa Spa IMPROVED PROCEDURE FOR THE RECYCLING OF EXPANDED POLYSTYRENE

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486305A (en) * 1994-09-19 1996-01-23 Chesebrough-Pond's Usa Co. Nail polish remover
JPH08218010A (en) * 1995-02-13 1996-08-27 Neos Co Ltd Water-soluble coating release agent
US5629352A (en) * 1995-04-24 1997-05-13 Matsushita Electric Industrial Co., Ltd. Solvent for polystyrene, method for reducing volume of polystyrene foam and method for recycling polystyrene foam
JPH09157435A (en) * 1995-12-06 1997-06-17 Bosai Soken:Kk Volume reduction processing method for waste polystyrene foam, method for producing recovered polystyrene resin, and volume reducing agent for waste polystyrene foam
US5712237A (en) * 1995-11-27 1998-01-27 Stevens; Edwin B. Composition for cleaning textiles
JPH10316797A (en) * 1997-05-09 1998-12-02 Internatl Foam Solutions Inc Easily transportable volume-reducing agent for polystyrene foam
US5929005A (en) * 1998-12-04 1999-07-27 Decora, Incorporated Graffiti remover which comprises an active solvent, a secondary solvent, an emollient and a particulate filler and method for its use
JP2001002828A (en) * 1999-04-19 2001-01-09 Stylo Japan:Kk Deaerating and shrinking agent for expanded polystyrene and method of deaerating and shrinking
JP2001106824A (en) * 1999-10-04 2001-04-17 Mitsugi Isome Treating agent for expanded polystyrene, its production, and method and apparatus for recovering expanded polystyrene

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486305A (en) * 1994-09-19 1996-01-23 Chesebrough-Pond's Usa Co. Nail polish remover
JPH08218010A (en) * 1995-02-13 1996-08-27 Neos Co Ltd Water-soluble coating release agent
US5629352A (en) * 1995-04-24 1997-05-13 Matsushita Electric Industrial Co., Ltd. Solvent for polystyrene, method for reducing volume of polystyrene foam and method for recycling polystyrene foam
US5712237A (en) * 1995-11-27 1998-01-27 Stevens; Edwin B. Composition for cleaning textiles
JPH09157435A (en) * 1995-12-06 1997-06-17 Bosai Soken:Kk Volume reduction processing method for waste polystyrene foam, method for producing recovered polystyrene resin, and volume reducing agent for waste polystyrene foam
JPH10316797A (en) * 1997-05-09 1998-12-02 Internatl Foam Solutions Inc Easily transportable volume-reducing agent for polystyrene foam
US5929005A (en) * 1998-12-04 1999-07-27 Decora, Incorporated Graffiti remover which comprises an active solvent, a secondary solvent, an emollient and a particulate filler and method for its use
JP2001002828A (en) * 1999-04-19 2001-01-09 Stylo Japan:Kk Deaerating and shrinking agent for expanded polystyrene and method of deaerating and shrinking
JP2001106824A (en) * 1999-10-04 2001-04-17 Mitsugi Isome Treating agent for expanded polystyrene, its production, and method and apparatus for recovering expanded polystyrene

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE CHEMABS CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, USA; XP002195932 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 16 8 May 2001 (2001-05-08) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03) *

Also Published As

Publication number Publication date
AU2002213306A1 (en) 2002-05-21
WO2002038659A2 (en) 2002-05-16

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