ES471479A1 - Un metodo de hidrolisis de espuma de poliuretano - Google Patents

Un metodo de hidrolisis de espuma de poliuretano

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
English (en)
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/es
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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Un método de hidrólisis de espuma de poliuretano en una zona de reacción y recuperación de diamina y producto polimérico líquido, a presiones de unas 0,5 a 1,5 atmósferas, que consiste en introducir en la zona de reacción, que se mantiene a una temperatura superior a unos 185ºC, una cantidad de amoníaco efectiva para aumentar la velocidad global de recuperación de diamina.
ES471479A 1977-07-18 1978-07-05 Un metodo de hidrolisis de espuma de poliuretano Expired ES471479A1 (es)

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 (es) 1979-01-16

Family

ID=25221213

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471479A Expired ES471479A1 (es) 1977-07-18 1978-07-05 Un metodo de hidrolisis de espuma de poliuretano

Country Status (6)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011662B1 (en) * 1978-11-29 1983-09-14 Ford Motor Company Limited Hydrolysis of polyurethanes
DE102005027814A1 (de) * 2005-06-15 2006-12-21 Basf Ag Verfahren zur Aufarbeitung von Isocyanataddukten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967601C (de) * 1955-03-29 1957-11-28 Continental Gummi Werke Ag Verfahren zur Wiedergewinnung von zu Kunststoffen vernetzbaren hoehermolekularen Spaltprodukten aus Abfaellen vernetzter stickstoffhaltiger Polykondensationsprodukte
FR1429011A (fr) * 1964-03-30 1966-02-18 Bridgestone Tire Co Ltd Procédé pour l'obtention de polyol et d'amine par décomposition de polyuréthane
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
DE2831483B2 (de) 1980-07-24
FR2398087A1 (fr) 1979-02-16
BE869046A (fr) 1978-11-16
FR2398087B1 (es) 1981-11-20
JPS5434396A (en) 1979-03-13
DE2831483A1 (de) 1979-01-25
GB1602676A (en) 1981-11-11

Similar Documents

Publication Publication Date Title
ES471811A1 (es) Procedimiento para la sintesis de amoniaco
SE7410185L (es)
ES467991A1 (es) Procedimiento de fabricacion de un compuesto a base de es- puma y resina formo-fenolica aligerada.
GB1374054A (en) Process for the continuous production of sulphur tetrafluoride
GB1455454A (en) Hydrolysis of polyurethane foam
ES467399A1 (es) Procedimiento para la fabricacion de beta (dimetilamino)- propionitrilo.
ES458388A1 (es) Procedimiento para la obtencion de poliisocianatos llevando grupos biuret.
ES277910A1 (es) Un procedimiento de producir esponjas de poliuretano
JPS5219611A (en) Process for recovery of butanediol and/ or butenediol
JPS52141044A (en) Heat feed pressure apparatus
ES442687A3 (es) Procedimiento y dispositivo para desintoxicar cianuros y so-luciones contenido de cianuro.
ES420361A1 (es) Procedimiento para la preparacion de aminas alifaticas se- cundarias.
JPS5719083A (en) Production of silver-impregnated active carbon
GB959358A (en) Production of urea prills of low biuret content
GB1534824A (en) Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions
ES8205509A1 (es) Procedimiento para la produccion de espuma de poliuretano con control de la temperatura de la reaccion y mayor aprove-chamiento de los vapores de reaccion
JPS52152999A (en) Preparation of modified urethane foam
ES8306104A1 (es) "un procedimiento mejorado para la preparacion de urea".
ES381116A1 (es) Un procedimiento para la preparacion de una espuma de po- liuretano flexible.
JPS5449996A (en) Thermal decomposition method for carbonyl sulfide
JPS5241697A (en) Process for producing low-density rigid polyisocyanurate foams
JPS5250397A (en) Process for producing flame-retarded polyurethane foams
JPS53116305A (en) Synthesis of 1-chloro-1-fluoroethane
SU534221A1 (ru) Способ обработки растений химикатами
ES281394A1 (es) Un procedimiento para la preparación de píldoras de urea pobres en biuret