CA1016956A - Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery of products therefrom - Google Patents

Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery of products therefrom

Info

Publication number
CA1016956A
CA1016956A CA181,390A CA181390A CA1016956A CA 1016956 A CA1016956 A CA 1016956A CA 181390 A CA181390 A CA 181390A CA 1016956 A CA1016956 A CA 1016956A
Authority
CA
Canada
Prior art keywords
recovery
reaction zone
polyurethane foam
products therefrom
tubular reaction
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
CA181,390A
Other languages
English (en)
Other versions
CA181390S (en
Inventor
Olin B. Johnson
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.)
Ford Motor Company of Canada Ltd
Original Assignee
Ford Motor Company of Canada 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 Ford Motor Company of Canada Ltd filed Critical Ford Motor Company of Canada Ltd
Application granted granted Critical
Publication of CA1016956A publication Critical patent/CA1016956A/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
    • 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
    • C08J11/14—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 steam or water
    • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CA181,390A 1972-12-18 1973-09-18 Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery of products therefrom Expired CA1016956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/315,976 US4025559A (en) 1972-12-18 1972-12-18 Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery

Publications (1)

Publication Number Publication Date
CA1016956A true CA1016956A (en) 1977-09-06

Family

ID=23226925

Family Applications (1)

Application Number Title Priority Date Filing Date
CA181,390A Expired CA1016956A (en) 1972-12-18 1973-09-18 Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery of products therefrom

Country Status (6)

Country Link
US (1) US4025559A (OSRAM)
JP (1) JPS5339920B2 (OSRAM)
CA (1) CA1016956A (OSRAM)
DE (1) DE2362920A1 (OSRAM)
FR (1) FR2327058A1 (OSRAM)
GB (1) GB1456251A (OSRAM)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442387C3 (de) * 1974-09-04 1981-09-10 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen
DE2711145A1 (de) 1977-03-15 1978-09-21 Bayer Ag Verfahren zur spaltung von polyurethankunststoffen
US4196148A (en) * 1977-07-18 1980-04-01 Ford Motor Company Hydrolysis of polyurethane foams
US4281197A (en) * 1979-06-18 1981-07-28 Ford Motor Company Hydrolytic decomposition method
US4328368A (en) * 1980-05-05 1982-05-04 General Motors Corporation Method for reclaiming polyurethane foam
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
CA2279541A1 (en) * 1997-02-05 1998-08-13 Kabushiki Kaisha Kobe Seiko Sho Apparatus for and process of hydrolyzing and recycling polyisocyanate derivatives
JP2007070485A (ja) * 2005-09-07 2007-03-22 Fuji Electric Systems Co Ltd ポリウレタン廃棄物の分解処理方法
US20070197668A1 (en) * 2006-02-20 2007-08-23 Troy Polymers, Inc. Process for preparing polyols
CZ2009620A3 (cs) 2009-09-22 2011-04-06 Ústav makromolekulární chemie AV CR, v.v.i. Surovina pro výrobu polyurethanu a zpusob její výroby z odpadního polyurethanu

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225094A (en) * 1962-06-15 1965-12-21 Du Pont Preparation of polyamines by steam hydrolysis of polyisocyanate reaction products
US3499035A (en) * 1967-10-02 1970-03-03 Olin Mathieson Toluene diamine recovery process

Also Published As

Publication number Publication date
FR2327058A1 (fr) 1977-05-06
JPS5339920B2 (OSRAM) 1978-10-24
FR2327058B1 (OSRAM) 1978-03-24
US4025559A (en) 1977-05-24
DE2362920A1 (de) 1974-07-11
GB1456251A (en) 1976-11-24
JPS4990375A (OSRAM) 1974-08-29

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