LU73301A1 - - Google Patents

Info

Publication number
LU73301A1
LU73301A1 LU73301A LU73301A LU73301A1 LU 73301 A1 LU73301 A1 LU 73301A1 LU 73301 A LU73301 A LU 73301A LU 73301 A LU73301 A LU 73301A LU 73301 A1 LU73301 A1 LU 73301A1
Authority
LU
Luxembourg
Application number
LU73301A
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 filed Critical
Publication of LU73301A1 publication Critical patent/LU73301A1/xx

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/911—Recycling consumer used articles or products
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/911—Recycling consumer used articles or products
    • Y10S264/916—From porous material containing articles, e.g. sponge, foam

Landscapes

  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing Of Solid Wastes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyurethanes Or Polyureas (AREA)
LU73301A 1974-09-04 1975-09-02 LU73301A1 (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2442387A DE2442387C3 (de) 1974-09-04 1974-09-04 Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen

Publications (1)

Publication Number Publication Date
LU73301A1 true LU73301A1 (https=) 1976-08-13

Family

ID=5924871

Family Applications (1)

Application Number Title Priority Date Filing Date
LU73301A LU73301A1 (https=) 1974-09-04 1975-09-02

Country Status (11)

Country Link
US (1) US4051212A (https=)
JP (1) JPS5152478A (https=)
BE (1) BE833013A (https=)
DE (1) DE2442387C3 (https=)
DK (1) DK394975A (https=)
ES (1) ES440722A1 (https=)
FR (1) FR2283766A1 (https=)
GB (2) GB1522993A (https=)
IT (1) IT1044454B (https=)
LU (1) LU73301A1 (https=)
NL (1) NL180920C (https=)

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DE2631326A1 (de) * 1976-07-12 1978-01-26 Kraftwerk Union Ag Verfahren zum einbinden fluessigkeitshaltiger radioaktiver abfallstoffe und knetvorrichtung dafuer
DE2703461C2 (de) * 1977-01-28 1985-01-10 Davy McKee AG, 6000 Frankfurt Stopwerk zur Vorverdichtung zerkleinerter voluminöser Polymerabfälle
US4196148A (en) * 1977-07-18 1980-04-01 Ford Motor Company Hydrolysis of polyurethane foams
DE2737693A1 (de) * 1977-08-20 1979-02-22 Bayer Ag Wiedergewinnung hochwertiger polycarbonate aus polycarbonat-abfaellen
GB1601787A (en) * 1977-08-22 1981-11-04 Ford Motor Co Hydrolytic decomposition method and apparatus
JPS5454172A (en) * 1977-10-07 1979-04-28 Kobe Steel Ltd Equipment for treting waste gas from injection molding machine
US4247519A (en) * 1978-12-04 1981-01-27 Kobe Steel, Ltd. Exhaust gas treatment device for injection molding machines
US4281197A (en) * 1979-06-18 1981-07-28 Ford Motor Company Hydrolytic decomposition method
DE2925944A1 (de) * 1979-06-27 1981-01-22 Bayer Ag Verfahren zur herstellung von polyurethanharnstoffen
US4328368A (en) * 1980-05-05 1982-05-04 General Motors Corporation Method for reclaiming polyurethane foam
DE3034680A1 (de) * 1980-09-13 1982-04-29 Bayer Ag, 5090 Leverkusen Verbessertes verfahren zur auftrennung von polyurethan-hydrolysaten in polyether und diamin
JPS5824426A (ja) * 1981-08-05 1983-02-14 Mitsubishi Chem Ind Ltd ポリアミドイミド樹脂の押出成形法
DE3232461A1 (de) * 1982-09-01 1984-03-01 Bayer Ag, 5090 Leverkusen Verfahren zum kontinuierlichen glykolytischen hochtemperatur-abbau von polyurethankunstoffabfaellen in schneckenmaschinen
US4663103A (en) * 1983-08-09 1987-05-05 Collins & Aikman Corporation Apparatus and method of extrusion
US4973439A (en) * 1984-07-13 1990-11-27 Xerox Corporation Process for preparing toner particles
GB8609537D0 (en) * 1986-04-18 1986-05-21 Ici Plc Polyesters
FR2622833B1 (fr) * 1987-11-06 1990-04-27 Omnium Traitement Valorisa Procede et installation pour la fabrication d'objets moules ou extrudes a partir de dechets contenant des matieres plastiques
DE3817941A1 (de) * 1988-05-27 1989-11-30 Rhodia Ag Extrusionsverfahren und ein-, zwei- oder mehrschneckenextruder
WO1991018960A1 (de) * 1990-05-26 1991-12-12 Georg Menges Verfahren zur verwertung von organischen abfällen und vorrichtung zur durchführung des verfahrens
US5169870A (en) * 1991-06-21 1992-12-08 Basf Corporation Reclaiming ε-caprolactam from nylon 6 carpet
US5476624A (en) * 1991-07-05 1995-12-19 Kabushiki Kaisha Toyota Chuo Kenkyusho Process for reclaiming waste plastics having a paint film
MY108226A (en) * 1991-12-20 1996-08-30 Exxon Research Engineering Co Process for improving biodegradability of pvc
US5326791A (en) * 1991-12-20 1994-07-05 Exxon Research And Engineering Company Process for separation of hydrolyzable from non-hydrolyzable waste plastics for recovery of starting materials and other conversion processes, respectively
DE4204094A1 (de) * 1992-02-12 1993-08-19 Arnold Dr Willmes Hydrothermal-verfahren zum abbau von polymeren, insbesondere schwefel-vernetzten elastomeren wie altgummi, zwecks wiederverwertung
US5504267A (en) * 1992-04-06 1996-04-02 S-P Reclamation, Inc. Resource recovery by catalytic conversion of polymers
US5369215A (en) * 1992-04-06 1994-11-29 S-P Reclamation, Inc. Depolymerization method for resource recovery from polymeric wastes
US5264640A (en) * 1992-04-06 1993-11-23 S-P Reclamation, Inc. Depolymerization method for resource recovery from polymeric wastes
JP3025774B2 (ja) * 1992-07-09 2000-03-27 株式会社日本製鋼所 塗装膜を有するプラスチック製品の再生方法
EP0582300B1 (en) * 1992-08-06 1998-01-07 Toyota Jidosha Kabushiki Kaisha Method and plant for continuously recycling waste parts with a coating made of synthetic resin
US5472305A (en) * 1992-10-29 1995-12-05 Toyota Jidosha Kabushiki Kaisha Sealed rotary feeder
DE59307118D1 (de) * 1993-01-28 1997-09-18 Polymer Eng Gmbh Verfahren und Vorrichtung zur Herstellung von Polyamid 6 aus Polyamid-Abfällen
US5424013A (en) * 1993-08-09 1995-06-13 Lieberman; Mark Thermoplastic closed loop recycling process
JP2909577B2 (ja) * 1993-10-29 1999-06-23 トヨタ自動車株式会社 樹脂廃材の再生方法及び装置
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
JP3081132B2 (ja) * 1995-04-28 2000-08-28 トヨタ自動車株式会社 塗膜付き樹脂の再生処理方法
US5656757A (en) * 1995-08-10 1997-08-12 Alliedsignal Inc. Monomer recovery from multi-component materials
US5681952A (en) * 1995-12-08 1997-10-28 Alliedsignal Inc. Process for depolymerizing nylon-containing waste to form caprolactam
US5948908A (en) * 1996-03-18 1999-09-07 Alliedsignal Inc. Process for depolymerizing polycaprolactam processing waste to form caprolactam
US6630517B2 (en) 1997-02-05 2003-10-07 Kabushiki Kaisha Kobe Seiko Sho Process for hydrolyzing and recycling a polyurethane
JP3551734B2 (ja) * 1997-12-01 2004-08-11 ソニー株式会社 硫酸／過酸化物混合液の利用方法
JP3921002B2 (ja) * 1998-01-16 2007-05-30 ジェネラル アトミックス インコーポレイティッド 耐圧反応装置
AU3006999A (en) 1998-03-16 1999-10-11 American Commodities, Inc. Process for removing deleterious surface material from polymeric regrind particles
US6129873A (en) * 1998-04-08 2000-10-10 Eastman Chemical Company Process for removing moisture and volatiles from pellets in single screw extruders
WO2000039205A1 (en) * 1998-12-30 2000-07-06 Pac Polymers Inc. Recovery of recyclable material from a physical combination of it and normally solid poly(alkylene carbonate) material
JP4501013B2 (ja) * 1999-02-26 2010-07-14 三井化学株式会社 ポリオールの精製方法
JP4114562B2 (ja) * 2003-07-11 2008-07-09 株式会社日立製作所 高分子処理方法及びその装置
JP4594797B2 (ja) * 2005-05-27 2010-12-08 富士重工業株式会社 樹脂製品の表面材剥離装置
FR3080623B1 (fr) * 2018-04-27 2021-01-08 Arkema France Valorisation de resine (meth)acrylique par depolymerisation et hydrolyse
CN112521656B (zh) * 2020-11-09 2021-11-23 杭州临安华欣塑粉材料有限公司 一种用于聚酯树脂废料加快降解的回收装置及其回收方法
JP2024501461A (ja) 2020-12-14 2024-01-12 コベストロ、ドイチュラント、アクチエンゲゼルシャフト ポリウレタンフォームから原料を回収する方法
EP4155341A1 (en) * 2021-09-27 2023-03-29 Japan Steel Works Europe GmbH Grade-dependent depolymerization process and its use for recycling plastics
EP4430112A1 (de) 2021-11-12 2024-09-18 Covestro Deutschland AG Verfahren zur wiedergewinnung von rohstoffen aus polyurethanprodukten
DE102022113375B4 (de) 2022-05-26 2026-02-26 Neveon Germany Gmbh Umsetzung von Polyurethan in einem Extruder
WO2025075820A2 (en) 2023-10-01 2025-04-10 Dow Global Technologies Llc Glycolysis process for converting polyurethane foam into useful dispersions
WO2025125285A1 (de) 2023-12-14 2025-06-19 Covestro Deutschland Ag Verfahren zur wiedergewinnung von wertstoffen aus polyurethanschaumstoffen
WO2025125284A1 (de) 2023-12-14 2025-06-19 Covestro Deutschland Ag Verfahren zur wiedergewinnung von wertstoffen aus polyurethanschaumstoffen

Family Cites Families (15)

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FR926211A (fr) * 1946-05-02 1947-09-25 Rhodiaceta Procédé pour le traitement de déchets de polyuréthanes
US2838801A (en) * 1957-03-29 1958-06-17 Dow Chemical Co Process for making fire-resistant cellular vinyl aromatic polymer articles
DE1302684B (https=) * 1961-06-21 1971-04-01 Automatic Process Control Inc
US3225094A (en) * 1962-06-15 1965-12-21 Du Pont Preparation of polyamines by steam hydrolysis of polyisocyanate reaction products
GB1093884A (en) * 1964-03-30 1967-12-06 Bridgestone Tire Co Ltd Method of recovering polyol and amine derivatives by the decomposition of polyurethane substances
US3551943A (en) * 1966-12-19 1971-01-05 Exxon Research Engineering Co Controlled degradation
US3499952A (en) * 1967-01-19 1970-03-10 Phillips Petroleum Co Pressure regulation in visbreaking extruder
US3703488A (en) * 1968-03-22 1972-11-21 Goodyear Tire & Rubber Process for reuse of polyester resin
DE2049974B2 (de) * 1970-10-12 1977-05-18 Ficker, Stefan, 8000 München Vorrichtung zum kontinuierlichen, drucklosen und trockenen regenerieren von gummiabfaellen
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and vapor stripping in screw devolatilizer
CA1018537A (en) * 1972-12-18 1977-10-04 Ford Motor Company Of Canada Method for continuous hydrolysis of polyurethane foam in fluidized bed and recovery of products therefrom
CA1016955A (en) * 1972-12-18 1977-09-06 Ford Motor Company Of Canada Low pressure hydrolysis of polyurethane foam and recovery of products
US4025559A (en) * 1972-12-18 1977-05-24 Ford Motor Company Method for continuous hydrolysis of polyurethane foam in restricted tubular reaction zone and recovery
US3959357A (en) * 1973-02-23 1976-05-25 Japan Steel Works, Ltd. Method for continuously thermally decomposing synthetic macro-molecule materials
US3954681A (en) * 1973-05-25 1976-05-04 Whittaker Corporation Method of reclaiming cured polyurethane elastomers

Also Published As

Publication number Publication date
US4051212A (en) 1977-09-27
JPS557131B2 (https=) 1980-02-22
NL7510298A (nl) 1976-03-08
DE2442387B2 (de) 1980-12-18
IT1044454B (it) 1980-03-20
FR2283766B1 (https=) 1979-06-15
BE833013A (fr) 1976-03-03
NL180920B (nl) 1986-12-16
DK394975A (da) 1976-03-05
DE2442387C3 (de) 1981-09-10
ES440722A1 (es) 1977-03-16
DE2442387A1 (de) 1976-03-18
JPS5152478A (en) 1976-05-10
FR2283766A1 (fr) 1976-04-02
GB1522993A (en) 1978-08-31
GB1522992A (en) 1978-08-31
NL180920C (nl) 1987-05-18

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