JPS5334000B2 - - Google Patents

Info

Publication number
JPS5334000B2
JPS5334000B2 JP7824172A JP7824172A JPS5334000B2 JP S5334000 B2 JPS5334000 B2 JP S5334000B2 JP 7824172 A JP7824172 A JP 7824172A JP 7824172 A JP7824172 A JP 7824172A JP S5334000 B2 JPS5334000 B2 JP S5334000B2
Authority
JP
Japan
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
JP7824172A
Other languages
Japanese (ja)
Other versions
JPS4828407A (en:Method
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 filed Critical
Publication of JPS4828407A publication Critical patent/JPS4828407A/ja
Publication of JPS5334000B2 publication Critical patent/JPS5334000B2/ja
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/54—Polycondensates of aldehydes
    • C08G18/546—Oxyalkylated polycondensates of aldehydes
    • 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
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP7824172A 1971-08-05 1972-08-04 Expired JPS5334000B2 (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16946871A 1971-08-05 1971-08-05

Publications (2)

Publication Number Publication Date
JPS4828407A JPS4828407A (en:Method) 1973-04-14
JPS5334000B2 true JPS5334000B2 (en:Method) 1978-09-18

Family

ID=22615833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7824172A Expired JPS5334000B2 (en:Method) 1971-08-05 1972-08-04

Country Status (5)

Country Link
US (1) US3738946A (en:Method)
JP (1) JPS5334000B2 (en:Method)
DE (1) DE2238109C3 (en:Method)
FR (1) FR2148271B1 (en:Method)
NL (1) NL156169B (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011246569A (ja) * 2010-05-26 2011-12-08 Inoac Corp リサイクル可能なポリウレタンフォーム、再生ポリオールの製造方法及び再生ポリオールを用いるポリウレタンフォームの製造方法

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013625A (en) * 1972-08-05 1977-03-22 Bayer Aktiengesellschaft Process for the linearization of polyurethanes with lactams and lactam addition compounds
US3933756A (en) * 1972-08-05 1976-01-20 Bayer Aktiengesellschaft Process of preparation of synthetic resins by reacting a cross-linked isocyanate polyaddition product with low molecular weight polyisocyanate followed by reaction with an amino alkyl silane
US4040991A (en) * 1973-12-10 1977-08-09 Mcdonnell Douglas Corporation Polyurethane foam reconstitution
US3983087A (en) * 1974-04-29 1976-09-28 The Upjohn Company Novel process of reclaiming polyurethane foam
US4035314A (en) * 1975-06-02 1977-07-12 The Firestone Tire & Rubber Company Recovery of polyurethane prepolymer and amine salt
DE2542022C2 (de) * 1975-09-20 1982-10-14 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von aktivierten, zur Herstellung von Polyurethankunststoffen wiederverwendbaren Polyhydroxylverbindungen
DE2711145A1 (de) 1977-03-15 1978-09-21 Bayer Ag Verfahren zur spaltung von polyurethankunststoffen
DE2738572C3 (de) * 1977-08-26 1979-11-29 7080 Aalen Verfahren zum Herstellen polyolhaltiger Flüssigkeiten aus Polyurethanabfällen
US4159972A (en) * 1977-10-17 1979-07-03 Ford Motor Company Dissolution of polyurethane foams and re-use of the products therefrom
DE3033330A1 (de) * 1980-09-04 1982-04-29 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von fluessigen gemischen von isocyanatgruppen aufweisenden verbindungen, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen
US4317939A (en) * 1981-02-23 1982-03-02 Ford Motor Company Catalyzed dissolution-hydrolysis of polyurethane wastes
US4316992A (en) * 1981-02-23 1982-02-23 Ford Motor Company Process for polyol recovery from polyurethane foam comprising alcohol and steam hydrolysis
US4336406A (en) * 1981-02-24 1982-06-22 Ford Motor Company Polyol extraction by high boiling alkanes
US4382108A (en) * 1981-12-21 1983-05-03 The Upjohn Company Novel compositions and process
DE3232461A1 (de) * 1982-09-01 1984-03-01 Bayer Ag, 5090 Leverkusen Verfahren zum kontinuierlichen glykolytischen hochtemperatur-abbau von polyurethankunstoffabfaellen in schneckenmaschinen
DE4024601C2 (de) * 1990-08-02 1997-04-03 Gunter Prof Dr Bauer Verfahren zur Herstellung polyolhaltiger Dispersionen und deren Verwendung
US5089571A (en) * 1990-12-04 1992-02-18 The Dow Chemical Company Regenerated, high molecular weight, thermoplastic resins and process for regenerating thermoplastic resins
DE4140967A1 (de) * 1991-12-12 1993-06-17 Bayer Ag Verfahren zur herstellung von hydroxylgruppen aufweisenden verbindungen und ihre verwendung
US5208379A (en) * 1992-05-14 1993-05-04 Arco Chemical Technology, L.P. Hydrolysis of polyurethanes
US5274004A (en) * 1992-06-15 1993-12-28 The Dow Chemical Company Process for conversion of polyurethane polymer to polyol and fresh polyurethane polymer therefrom
US5300530A (en) * 1992-12-11 1994-04-05 Air Products And Chemicals, Inc. Process for modifying the glycolysis reaction product of polyurethane scrap
DE4323558C2 (de) * 1993-07-14 2001-02-15 Gore & Ass Verfahren zur Isolierung und Wiederverwertung von Textilmaterialien aus polyurethanverklebten Textilverbundlaminaten
US5511828A (en) * 1993-09-28 1996-04-30 Oiles Corporation Flexible joint for automobile exhaust pipe
DE4411864A1 (de) * 1994-04-08 1995-10-12 Basf Schwarzheide Gmbh Verfahren zur Herstellung von harten bis zähharten Polyurethanschaumstoffen mit erhöhtem Anteil an offenen Zellen und vermindertem Schrumpf
DE4442379A1 (de) 1994-11-29 1996-05-30 Bayer Ag Verfahren zum glykolytischen Abbau von Polyurethankunststoffen
CA2279541A1 (en) * 1997-02-05 1998-08-13 Kabushiki Kaisha Kobe Seiko Sho Apparatus for and process of hydrolyzing and recycling polyisocyanate derivatives
DE19732378A1 (de) * 1997-02-18 1998-08-27 Kristian S Dipl Chem D Oeffner Polyurethanschaumentferner für verschiedene Untergründe
AU3523399A (en) * 1998-04-16 1999-11-08 Gerhard Behrendt Method for producing polyols and polyols
US6750260B2 (en) 2000-02-28 2004-06-15 Troy Polymers, Inc. Process for chemical recycling of polyurethane-containing scrap
US20070197668A1 (en) * 2006-02-20 2007-08-23 Troy Polymers, Inc. Process for preparing polyols
CZ301686B6 (cs) * 2007-08-23 2010-05-26 Ústav makromolekulární chemie AV CR, v.v.i. Zpusob recyklace odpadních polyurethanových pen
JP5358635B2 (ja) * 2011-09-06 2013-12-04 株式会社日立製作所 ポリウレタン分解液及びポリウレタン分解液形成方法
DE102016122275B4 (de) 2016-11-18 2020-04-02 H & S Anlagentechnik Gmbh Verfahren zur Herstellung von Polyoldispersionen aus Polyurethanabfällen und deren Verwendung
DE102016122276A1 (de) 2016-11-18 2018-05-24 H & S Anlagentechnik Gmbh Recyclingpolyol
DE102019204570A1 (de) * 2019-04-01 2020-10-01 Rampf Holding Gmbh & Co. Kg Polyurethan-Aerogele
WO2022106552A1 (en) 2020-11-20 2022-05-27 Huntsman International Llc Upgraded stabilized polyol composition
DE102022106914A1 (de) 2022-03-23 2023-09-28 Performance Chemicals Handels Gmbh Verfahren zur Herstellung von Polyurethanschaumstoff-Körpern unter Zurückführung von Verschnitt in Form eines Depolymerisates
LU501979B1 (en) 2022-04-29 2023-10-30 Kemijski Inst Chemical recycling of polyurethane foams with amines
WO2025074294A1 (en) * 2023-10-03 2025-04-10 Green Polyols S.R.L. Process for preparing polyol admixtures from recycled polyurethane material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011246569A (ja) * 2010-05-26 2011-12-08 Inoac Corp リサイクル可能なポリウレタンフォーム、再生ポリオールの製造方法及び再生ポリオールを用いるポリウレタンフォームの製造方法

Also Published As

Publication number Publication date
NL7210731A (en:Method) 1973-02-07
US3738946A (en) 1973-06-12
DE2238109C3 (de) 1975-10-30
NL156169B (nl) 1978-03-15
DE2238109A1 (de) 1973-02-15
FR2148271B1 (en:Method) 1976-08-13
FR2148271A1 (en:Method) 1973-03-11
JPS4828407A (en:Method) 1973-04-14
DE2238109B2 (de) 1975-03-20

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