ES471479A1 - Hydrolysis of polyurethane foams - Google Patents

Hydrolysis of polyurethane foams

Info

Publication number
ES471479A1
ES471479A1 ES471479A ES471479A ES471479A1 ES 471479 A1 ES471479 A1 ES 471479A1 ES 471479 A ES471479 A ES 471479A ES 471479 A ES471479 A ES 471479A ES 471479 A1 ES471479 A1 ES 471479A1
Authority
ES
Spain
Prior art keywords
hydrolysis
polyurethane foams
diamine
recovery
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
ES471479A
Other languages
Spanish (es)
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 Co
Original Assignee
Ford Motor 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 Ford Motor Co filed Critical Ford Motor Co
Publication of ES471479A1 publication Critical patent/ES471479A1/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
    • C08J11/16—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 inorganic 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)
  • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

A method of hydrolysis of polyurethane foam in a reaction and recovery zone of diamine and liquid polymeric product, at pressures of about 0.5 to 1.5 atmospheres, consisting of introducing into the reaction zone, which is maintained at a temperature greater than about 185º c, an amount of ammonia effective to increase the overall rate of recovery of diamine. (Machine-translation by Google Translate, not legally binding)
ES471479A 1977-07-18 1978-07-05 Hydrolysis of polyurethane foams Expired ES471479A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81663677A 1977-07-18 1977-07-18

Publications (1)

Publication Number Publication Date
ES471479A1 true ES471479A1 (en) 1979-01-16

Family

ID=25221213

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471479A Expired ES471479A1 (en) 1977-07-18 1978-07-05 Hydrolysis of polyurethane foams

Country Status (6)

Country Link
JP (1) JPS5434396A (en)
BE (1) BE869046A (en)
DE (1) DE2831483B2 (en)
ES (1) ES471479A1 (en)
FR (1) FR2398087A1 (en)
GB (1) GB1602676A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2862318D1 (en) * 1978-11-29 1983-10-20 Ford Motor Co Hydrolysis of polyurethanes
DE102005027814A1 (en) * 2005-06-15 2006-12-21 Basf Ag Process for the preparation of isocyanate adducts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967601C (en) * 1955-03-29 1957-11-28 Continental Gummi Werke Ag Process for the recovery of higher molecular weight cleavage products which can be crosslinked to form plastics from waste crosslinked nitrogenous polycondensation products
FR1429011A (en) * 1964-03-30 1966-02-18 Bridgestone Tire Co Ltd Process for obtaining polyol and amine by decomposition of polyurethane
CA1016955A (en) * 1972-12-18 1977-09-06 Ford Motor Company Of Canada Low pressure hydrolysis of polyurethane foam and recovery of products
US4162995A (en) * 1976-07-01 1979-07-31 Sheratte Martin B Method and composition for reclaiming polyurethane

Also Published As

Publication number Publication date
FR2398087B1 (en) 1981-11-20
FR2398087A1 (en) 1979-02-16
DE2831483A1 (en) 1979-01-25
BE869046A (en) 1978-11-16
GB1602676A (en) 1981-11-11
DE2831483B2 (en) 1980-07-24
JPS5434396A (en) 1979-03-13

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