CA1016955A - Low pressure hydrolysis of polyurethane foam and recovery of products - Google Patents

Low pressure hydrolysis of polyurethane foam and recovery of products

Info

Publication number
CA1016955A
CA1016955A CA181,365A CA181365A CA1016955A CA 1016955 A CA1016955 A CA 1016955A CA 181365 A CA181365 A CA 181365A CA 1016955 A CA1016955 A CA 1016955A
Authority
CA
Canada
Prior art keywords
recovery
products
low pressure
polyurethane foam
pressure hydrolysis
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
CA181,365A
Other versions
CA181365S (en
Inventor
Jacob Braslaw
Lee R. Mahoney
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 CA1016955A publication Critical patent/CA1016955A/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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
CA181,365A 1972-12-18 1973-09-18 Low pressure hydrolysis of polyurethane foam and recovery of products Expired CA1016955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31597972A 1972-12-18 1972-12-18

Publications (1)

Publication Number Publication Date
CA1016955A true CA1016955A (en) 1977-09-06

Family

ID=23226942

Family Applications (1)

Application Number Title Priority Date Filing Date
CA181,365A Expired CA1016955A (en) 1972-12-18 1973-09-18 Low pressure hydrolysis of polyurethane foam and recovery of products

Country Status (5)

Country Link
JP (1) JPS4990377A (en)
CA (1) CA1016955A (en)
DE (1) DE2362921A1 (en)
FR (1) FR2210493B1 (en)
GB (1) GB1455454A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442387C3 (en) * 1974-09-04 1981-09-10 Bayer Ag, 5090 Leverkusen Process for the continuous hydrolytic breakdown of hydrolyzable plastic waste
GB1602676A (en) * 1977-07-18 1981-11-11 Ford Motor Co Hydrolysis of polyurethane foams
GB1601787A (en) * 1977-08-22 1981-11-04 Ford Motor Co Hydrolytic decomposition method and apparatus
US4281197A (en) * 1979-06-18 1981-07-28 Ford Motor Company Hydrolytic decomposition method
DE3033330A1 (en) 1980-09-04 1982-04-29 Bayer Ag, 5090 Leverkusen METHOD FOR THE PRODUCTION OF LIQUID MIXTURES OF COMPOUNDS CONTAINING ISOCYANATE GROUPS, AND THEIR USE AS A BUILDING COMPONENT IN THE PRODUCTION OF POLYURETHANE PLASTICS
DE4323558C2 (en) * 1993-07-14 2001-02-15 Gore & Ass Process for the isolation and recycling of textile materials from polyurethane-bonded textile laminates
DE69828498T2 (en) 1997-02-05 2006-01-19 Kabushiki Kaisha Kobe Seiko Sho, Kobe APPARATUS AND METHOD FOR HYDROLYSIS AND RECYCLING OF ISOCYANATE COMPOUNDS
EP4363479A1 (en) * 2021-07-02 2024-05-08 Evonik Operations GmbH Recovering di- and/or polyisocyanates from pu-depolymerisation processes

Family Cites Families (1)

* 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

Also Published As

Publication number Publication date
JPS4990377A (en) 1974-08-29
GB1455454A (en) 1976-11-10
DE2362921A1 (en) 1974-07-11
FR2210493A1 (en) 1974-07-12
FR2210493B1 (en) 1976-10-08

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