CH617216A5 - Process and apparatus for radiation-chemical degradation of polymers or oligomers - Google Patents

Process and apparatus for radiation-chemical degradation of polymers or oligomers Download PDF

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Publication number
CH617216A5
CH617216A5 CH1628274A CH1628274A CH617216A5 CH 617216 A5 CH617216 A5 CH 617216A5 CH 1628274 A CH1628274 A CH 1628274A CH 1628274 A CH1628274 A CH 1628274A CH 617216 A5 CH617216 A5 CH 617216A5
Authority
CH
Switzerland
Prior art keywords
radiation
reactants
reaction
oligomers
polymers
Prior art date
Application number
CH1628274A
Other languages
German (de)
English (en)
Inventor
Armin Dr Ferse
Harald Dr Grimm
Original Assignee
Akad Wissenschaften Ddr
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
Priority to DD145764A priority Critical patent/DD112588A3/xx
Priority to DE19742456870 priority patent/DE2456870A1/de
Priority to AT963674A priority patent/AT345551B/de
Application filed by Akad Wissenschaften Ddr filed Critical Akad Wissenschaften Ddr
Priority to CH1628274A priority patent/CH617216A5/de
Priority to NL7416009A priority patent/NL7416009A/xx
Priority to GB53330/74A priority patent/GB1496347A/en
Priority to BE151480A priority patent/BE823325A/xx
Priority to JP49144563A priority patent/JPS5171388A/ja
Priority to LU71552A priority patent/LU71552A1/xx
Priority to FR7443074A priority patent/FR2295981A1/fr
Priority to US05/609,969 priority patent/US4072591A/en
Publication of CH617216A5 publication Critical patent/CH617216A5/de

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/081—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/081—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation
    • B01J19/085—Electron beams only
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/367—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/19—Acids containing three or more carbon atoms
    • C07C53/21—Acids containing three or more carbon atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/38—Acyl halides
    • C07C53/46—Acyl halides containing halogen outside the carbonyl halide group
    • C07C53/50—Acyl halides containing halogen outside the carbonyl halide group of acids containing three or more carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
    • 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)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
CH1628274A 1970-02-20 1974-12-06 Process and apparatus for radiation-chemical degradation of polymers or oligomers CH617216A5 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DD145764A DD112588A3 (pt) 1970-02-20 1970-02-20
DE19742456870 DE2456870A1 (de) 1970-02-20 1974-12-02 Verfahren und vorrichtung zum strahlenchemischen abbau von polymeren bis oligomeren
AT963674A AT345551B (de) 1970-02-20 1974-12-02 Verfahren und vorrichtung zum strahlenchemischen abbau von hochfluorierten polymeren bis oligomeren
CH1628274A CH617216A5 (en) 1970-02-20 1974-12-06 Process and apparatus for radiation-chemical degradation of polymers or oligomers
NL7416009A NL7416009A (nl) 1970-02-20 1974-12-09 Werkwijze en inrichting voor het door middel van bestraling chemisch ontleden van polymeren tot oligomeren.
GB53330/74A GB1496347A (en) 1970-02-20 1974-12-10 Decomposition and reaction of polymers and/or oligomers
BE151480A BE823325A (fr) 1970-02-20 1974-12-13 Procede et appareil pour la degradation radiochimique de polymeres ou oligomeres.
JP49144563A JPS5171388A (en) 1970-02-20 1974-12-18 Jugotainaishi origomaanokokagakutekibunkainohoho to sochi
LU71552A LU71552A1 (pt) 1970-02-20 1974-12-23
FR7443074A FR2295981A1 (fr) 1970-02-20 1974-12-27 Procede et dispositif pour la degradation chimique par irradiation de polymeres et oligomeres
US05/609,969 US4072591A (en) 1970-02-20 1975-09-03 Process for conversion of oligomers and higher polymers by irradiation with high-energy electrons

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DD145764A DD112588A3 (pt) 1970-02-20 1970-02-20
AT963674A AT345551B (de) 1970-02-20 1974-12-02 Verfahren und vorrichtung zum strahlenchemischen abbau von hochfluorierten polymeren bis oligomeren
CH1628274A CH617216A5 (en) 1970-02-20 1974-12-06 Process and apparatus for radiation-chemical degradation of polymers or oligomers
GB53330/74A GB1496347A (en) 1970-02-20 1974-12-10 Decomposition and reaction of polymers and/or oligomers
JP49144563A JPS5171388A (en) 1970-02-20 1974-12-18 Jugotainaishi origomaanokokagakutekibunkainohoho to sochi
FR7443074A FR2295981A1 (fr) 1970-02-20 1974-12-27 Procede et dispositif pour la degradation chimique par irradiation de polymeres et oligomeres
US05/609,969 US4072591A (en) 1970-02-20 1975-09-03 Process for conversion of oligomers and higher polymers by irradiation with high-energy electrons

Publications (1)

Publication Number Publication Date
CH617216A5 true CH617216A5 (en) 1980-05-14

Family

ID=27560460

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1628274A CH617216A5 (en) 1970-02-20 1974-12-06 Process and apparatus for radiation-chemical degradation of polymers or oligomers

Country Status (11)

Country Link
US (1) US4072591A (pt)
JP (1) JPS5171388A (pt)
AT (1) AT345551B (pt)
BE (1) BE823325A (pt)
CH (1) CH617216A5 (pt)
DD (1) DD112588A3 (pt)
DE (1) DE2456870A1 (pt)
FR (1) FR2295981A1 (pt)
GB (1) GB1496347A (pt)
LU (1) LU71552A1 (pt)
NL (1) NL7416009A (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190889A2 (en) * 1985-01-31 1986-08-13 Montell North America Inc. Polypropylene with free-end long chain branching, process for making it, and use thereof
US8153745B2 (en) 2006-04-18 2012-04-10 Borealis Technology Oy Multi-branched polypropylene

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3577094D1 (de) * 1984-01-16 1990-05-17 Du Pont Fertigbearbeitung von perfluorierten mischpolymerisatenim extruder.
US4861408A (en) * 1987-04-08 1989-08-29 The United States Of America As Represented By The United States Department Of Energy Modification of polymeric surface for improved adhesion via electron beam exposure
FR2692583A1 (fr) * 1992-05-29 1993-12-24 Mezza Michel Mise en application d'une réaction photochimique sur divers produits en polypropylène, copolymère ou homogène et polyéthylène haute ou basse densité.
DE4334015A1 (de) * 1993-10-06 1995-04-13 Hoechst Ag Verfahren zur Herstellung von fluorierten Monomeren
SK279397B6 (sk) * 1997-03-03 1998-11-04 Ivan Ma�Ar Spôsob termálnej a/alebo katalytickej dekompozície
ITTO20010372A1 (it) * 2001-04-13 2002-10-13 Silvio Perona Procedimento di depurazione e raffinazione di fluidi per mezzo di elettroni accelerati.
AU2003269802A1 (en) * 2002-03-14 2003-12-31 Shamrock Technologies, Inc. Methods for producing submicron polytetrafluoroethylene powder and products thereof
DE102006041874B4 (de) * 2005-09-30 2014-06-18 Leibniz-Institut Für Polymerforschung Dresden E.V. Vorrichtung zur kontinuierlichen Modifizierung von Polymeren im fließfähigen Zustand mittels Elektronenstrahlung
JP5260294B2 (ja) * 2005-09-30 2013-08-14 ライプニッツ−インスティチュート フュア ポリマーフォルシュング ドレスデン エーファウ ポリマを流動性の状態で電子放射線によって連続的に改質するための装置
DE102009002642A1 (de) * 2009-04-24 2010-10-28 Leibniz-Institut Für Polymerforschung Dresden E.V. Verfahren zur Herstellung thermoplastischer Polymercompounds
EP4106910A1 (en) * 2020-02-21 2022-12-28 3M Innovative Properties Company Upcycling perfluoropolymers into fluorinated olefins

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544324A (pt) * 1955-01-11
NL210427A (pt) * 1955-09-06
US3833626A (en) * 1968-09-23 1974-09-03 Chem Nunchritz Veb Process for preparing perfluorinated mono-and dicarboxylic acids
US4029870A (en) * 1970-02-03 1977-06-14 Imperial Chemical Industries Limited Tetrafluoroethylene polymers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190889A2 (en) * 1985-01-31 1986-08-13 Montell North America Inc. Polypropylene with free-end long chain branching, process for making it, and use thereof
EP0190889A3 (en) * 1985-01-31 1986-11-26 Himont Incorporated Polypropylene with free-end long chain branching, process for making it, and use thereof
US5554668A (en) * 1985-01-31 1996-09-10 Montell North America Inc. High melt strength, propylene polymer, process for making it, and use thereof
US8153745B2 (en) 2006-04-18 2012-04-10 Borealis Technology Oy Multi-branched polypropylene

Also Published As

Publication number Publication date
BE823325A (fr) 1975-06-13
FR2295981A1 (fr) 1976-07-23
JPS5171388A (en) 1976-06-21
ATA963674A (de) 1978-01-15
FR2295981B1 (pt) 1978-05-05
LU71552A1 (pt) 1975-06-17
GB1496347A (en) 1977-12-30
US4072591A (en) 1978-02-07
NL7416009A (nl) 1976-06-11
DD112588A3 (pt) 1975-04-20
DE2456870A1 (de) 1976-06-10
AT345551B (de) 1978-09-25

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