DE2456870A1 - Verfahren und vorrichtung zum strahlenchemischen abbau von polymeren bis oligomeren - Google Patents
Verfahren und vorrichtung zum strahlenchemischen abbau von polymeren bis oligomerenInfo
- Publication number
- DE2456870A1 DE2456870A1 DE19742456870 DE2456870A DE2456870A1 DE 2456870 A1 DE2456870 A1 DE 2456870A1 DE 19742456870 DE19742456870 DE 19742456870 DE 2456870 A DE2456870 A DE 2456870A DE 2456870 A1 DE2456870 A1 DE 2456870A1
- Authority
- DE
- Germany
- Prior art keywords
- polymers
- tint
- irradiated
- reactants
- oligomers
- 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.)
- Withdrawn
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)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Chemical & Material 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)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD145764A DD112588A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 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 |
|---|---|
| DE2456870A1 true DE2456870A1 (de) | 1976-06-10 |
Family
ID=27560460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742456870 Withdrawn DE2456870A1 (de) | 1970-02-20 | 1974-12-02 | Verfahren und vorrichtung zum strahlenchemischen abbau von polymeren bis oligomeren |
Country Status (11)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1240119A (en) * | 1984-01-16 | 1988-08-09 | Richard A. Morgan | Extrusion finishing of perfluorinated copolymers |
| NO167039C (no) * | 1985-01-31 | 1991-09-25 | Himont Inc | Fremgangsmaate for fremstilling av polypropylen med langkjedede forgreninger og anvendelse av dette |
| 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 |
| US8678804B2 (en) | 2005-09-30 | 2014-03-25 | Leibniz-Institut Fuer Polymerforschung Dresden E.V. | Apparatus for the continuous modification of polymers in the free-flowing state by means of electron radiation |
| EP1847555A1 (en) | 2006-04-18 | 2007-10-24 | Borealis Technology Oy | Multi-branched Polypropylene |
| DE102009002642A1 (de) * | 2009-04-24 | 2010-10-28 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur Herstellung thermoplastischer Polymercompounds |
| JP2023516911A (ja) | 2020-02-21 | 2023-04-21 | スリーエム イノベイティブ プロパティズ カンパニー | ペルフルオロポリマーのフッ素化オレフィンへのアップサイクル |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE544324A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1955-01-11 | |||
| NL104701C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 |
-
1970
- 1970-02-20 DD DD145764A patent/DD112588A3/xx unknown
-
1974
- 1974-12-02 DE DE19742456870 patent/DE2456870A1/de not_active Withdrawn
- 1974-12-02 AT AT963674A patent/AT345551B/de not_active IP Right Cessation
- 1974-12-06 CH CH1628274A patent/CH617216A5/de not_active IP Right Cessation
- 1974-12-09 NL NL7416009A patent/NL7416009A/xx not_active Application Discontinuation
- 1974-12-10 GB GB53330/74A patent/GB1496347A/en not_active Expired
- 1974-12-13 BE BE151480A patent/BE823325A/xx unknown
- 1974-12-18 JP JP49144563A patent/JPS5171388A/ja active Pending
- 1974-12-23 LU LU71552A patent/LU71552A1/xx unknown
- 1974-12-27 FR FR7443074A patent/FR2295981A1/fr active Granted
-
1975
- 1975-09-03 US US05/609,969 patent/US4072591A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2295981A1 (fr) | 1976-07-23 |
| NL7416009A (nl) | 1976-06-11 |
| GB1496347A (en) | 1977-12-30 |
| DD112588A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-04-20 |
| ATA963674A (de) | 1978-01-15 |
| JPS5171388A (en) | 1976-06-21 |
| FR2295981B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-05-05 |
| LU71552A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-17 |
| US4072591A (en) | 1978-02-07 |
| CH617216A5 (en) | 1980-05-14 |
| BE823325A (fr) | 1975-06-13 |
| AT345551B (de) | 1978-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |