CA1042146A - Methode de recuperation des mousses de polyurethane souples - Google Patents

Methode de recuperation des mousses de polyurethane souples

Info

Publication number
CA1042146A
CA1042146A CA223,810A CA223810A CA1042146A CA 1042146 A CA1042146 A CA 1042146A CA 223810 A CA223810 A CA 223810A CA 1042146 A CA1042146 A CA 1042146A
Authority
CA
Canada
Prior art keywords
foam
scrap
weight
flexible
aliphatic diol
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
CA223,810A
Other languages
English (en)
Inventor
Benjamin Tucker
Henri Ulrich
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn 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 Upjohn Co filed Critical Upjohn Co
Application granted granted Critical
Publication of CA1042146A publication Critical patent/CA1042146A/fr
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
    • 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
    • C08J11/22—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 by treatment with organic oxygen-containing compounds
    • C08J11/24—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 by treatment with organic oxygen-containing compounds containing hydroxyl groups
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA223,810A 1974-04-29 1975-04-03 Methode de recuperation des mousses de polyurethane souples Expired CA1042146A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46485674A 1974-04-29 1974-04-29

Publications (1)

Publication Number Publication Date
CA1042146A true CA1042146A (fr) 1978-11-07

Family

ID=23845529

Family Applications (1)

Application Number Title Priority Date Filing Date
CA223,810A Expired CA1042146A (fr) 1974-04-29 1975-04-03 Methode de recuperation des mousses de polyurethane souples

Country Status (8)

Country Link
JP (1) JPS5329359B2 (fr)
CA (1) CA1042146A (fr)
DE (1) DE2516863B2 (fr)
ES (1) ES436853A1 (fr)
FR (1) FR2268825B1 (fr)
GB (1) GB1492838A (fr)
IT (1) IT1035248B (fr)
NL (1) NL159418B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951617C2 (de) * 1979-12-21 1985-08-14 Wilhelm Prof. Dr.-Ing. 5100 Aachen Schütz Verfahren und Anlage zur Aufbereitung von Polyurethan
DE3232461A1 (de) * 1982-09-01 1984-03-01 Bayer Ag, 5090 Leverkusen Verfahren zum kontinuierlichen glykolytischen hochtemperatur-abbau von polyurethankunstoffabfaellen in schneckenmaschinen
DE3618007A1 (de) * 1986-05-28 1987-12-03 Bayer Ag Verfahren zur herstellung von hydroxyphenylurethanen
DE4024601C2 (de) * 1990-08-02 1997-04-03 Gunter Prof Dr Bauer Verfahren zur Herstellung polyolhaltiger Dispersionen und deren Verwendung
DE4234335A1 (de) 1992-10-12 1994-04-14 Basf Schwarzheide Gmbh Verfahren zur Herstellung von Recyclatpolyolen und deren Verwendung bei der Herstellung von Polyurethanen
GB9223943D0 (en) * 1992-11-14 1993-01-06 Caligen Foam Ltd Re-cycling of polyurethane foam
DE4323558C2 (de) * 1993-07-14 2001-02-15 Gore & Ass Verfahren zur Isolierung und Wiederverwertung von Textilmaterialien aus polyurethanverklebten Textilverbundlaminaten
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
DE4433834C1 (de) * 1994-09-22 1995-10-12 Daimler Benz Ag Verfahren zur Rückgewinnung von Sekundärpolyolen aus mit nichtglykolysierbaren Stoffen vermischten Polyaddukten von Diolen und Diisocyanaten
DE4442379A1 (de) 1994-11-29 1996-05-30 Bayer Ag Verfahren zum glykolytischen Abbau von Polyurethankunststoffen
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
CN112029148A (zh) * 2020-08-31 2020-12-04 浙江工业大学 一种使用乳液体系回收废弃聚氨酯泡沫中聚醚多元醇的方法

Also Published As

Publication number Publication date
NL159418B (nl) 1979-02-15
NL7504473A (nl) 1975-10-31
JPS50149606A (fr) 1975-11-29
GB1492838A (en) 1977-11-23
FR2268825B1 (fr) 1977-07-08
AU7984375A (en) 1976-10-07
ES436853A1 (es) 1976-12-01
DE2516863A1 (de) 1975-10-30
DE2516863B2 (de) 1977-03-03
FR2268825A1 (fr) 1975-11-21
IT1035248B (it) 1979-10-20
JPS5329359B2 (fr) 1978-08-19

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