AU4170796A - Process for recycling epoxy resin containing products - Google Patents
Process for recycling epoxy resin containing productsInfo
- Publication number
- AU4170796A AU4170796A AU41707/96A AU4170796A AU4170796A AU 4170796 A AU4170796 A AU 4170796A AU 41707/96 A AU41707/96 A AU 41707/96A AU 4170796 A AU4170796 A AU 4170796A AU 4170796 A AU4170796 A AU 4170796A
- Authority
- AU
- Australia
- Prior art keywords
- epoxy resin
- resin containing
- recycling
- dissolved
- products
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title abstract 5
- 239000003822 epoxy resin Substances 0.000 title abstract 4
- 229920000647 polyepoxide Polymers 0.000 title abstract 4
- 238000004064 recycling Methods 0.000 title abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000002798 polar solvent Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
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
- C08J11/18—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 organic 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
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- 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)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Epoxy Resins (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Epoxy Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention concerns a process for recycling epoxy resin containing products and substances, such as for example printed-circuit boards, and for reusing the decomposition products. The recycling processes known hitherto only attain unsatisfactory results. Some of the processes are highly demanding in terms of energy are ecologically harmful. It is not possible to separate the material components more precisely and the quality of the recycled materials is poor. According to the invention, the epoxy resin containing materials to be recycled are intensively mixed for between 2 and 10 hours with one or a plurality of polar solvents, which modify the physical-chemical structure of the epoxy resin matrix, at a processing temperature of between 140 and 280 DEG C, and are acted upon by mechanical forces and optionally pressure. The non-dissolved solid fractions (glass fibres, metal parts) are then separated from the resultant decomposition product and, after appropriate intermediate treatment, are subject to an individual reuse process, whilst the resin polymer is dissolved out of the dissolved liquid decomposition products or the polymer decomposition product, after the addition of suitable reagents, is used directly for producing a new resin product.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4443262 | 1994-11-24 | ||
| DE4443262 | 1994-11-24 | ||
| DE1995120895 DE19520895A1 (en) | 1995-06-01 | 1995-06-01 | Simple, economical recycling of epoxide resin prod. e.g. circuit board |
| DE9520895 | 1995-06-01 | ||
| PCT/DE1995/001708 WO1996016112A1 (en) | 1994-11-24 | 1995-11-24 | Process for recycling epoxy resin containing products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU4170796A true AU4170796A (en) | 1996-06-17 |
Family
ID=25942588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU41707/96A Abandoned AU4170796A (en) | 1994-11-24 | 1995-11-24 | Process for recycling epoxy resin containing products |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0801662B1 (en) |
| AT (1) | ATE206731T1 (en) |
| AU (1) | AU4170796A (en) |
| DE (2) | DE19581340D2 (en) |
| WO (1) | WO1996016112A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19839083C2 (en) * | 1998-08-27 | 2001-02-15 | Siemens Ag | Recycling of thermoset materials |
| JP3946390B2 (en) * | 1999-09-13 | 2007-07-18 | 株式会社東芝 | Recycling method of thermosetting resin |
| FR2811246B1 (en) * | 2000-07-06 | 2003-01-17 | Electricite De France | PROCESS FOR RECOVERING COMPOSITE MATERIALS |
| WO2002042041A1 (en) * | 2000-11-23 | 2002-05-30 | Hi-Tech Engineering Limited | Composite products |
| DE102014101413A1 (en) | 2014-02-05 | 2015-08-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Chemically degradable epoxy resin system |
| WO2017077512A1 (en) | 2015-11-05 | 2017-05-11 | Attero Recycling Pvt. Ltd. | Process for recycling epoxy resins from electronic waste and product thereof |
| EP4592341A4 (en) * | 2022-09-23 | 2025-12-31 | Swancor Innovation & Incubation Co Ltd | METHOD FOR THE DECOR OF AN ANHYDRIDE EPOXY-HARDENED PRODUCT, POLYOL PRODUCED THEREBY AND HEAT-HARDENING RESIN |
| CN117800879A (en) * | 2022-09-23 | 2024-04-02 | 上纬创新育成股份有限公司 | Method for degrading acid anhydride epoxy cured product, polyol prepared therefrom and thermosetting resin |
| CN118492037B (en) * | 2024-07-11 | 2024-11-12 | 山东春帆环境科技有限责任公司 | A process for separating harmful components from degradable packaging waste and then reusing them |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD125516A3 (en) * | 1972-11-10 | 1977-04-27 | ||
| JPS5426871A (en) * | 1977-08-01 | 1979-02-28 | Sumitomo Bakelite Co Ltd | Separation and recovery of components of composite material |
| SU1065453A1 (en) * | 1982-04-22 | 1984-01-07 | Специальное Проектно-Конструкторское Технологическое Бюро По Трансформаторам Средне-Волжского Производственного Объединения "Трансформатор" | Method for cleaning equipment from residues of epoxy compositions |
| SU1694609A1 (en) * | 1989-05-22 | 1991-11-30 | Московский Завод "Сапфир" | Composition for removing polymer coat |
| RU2014135C1 (en) * | 1991-12-26 | 1994-06-15 | Акционерное общество закрытого типа "Механобр-Техноген" | Method for processing electrotechnical and radio engineering wastes |
-
1995
- 1995-11-24 WO PCT/DE1995/001708 patent/WO1996016112A1/en not_active Ceased
- 1995-11-24 AU AU41707/96A patent/AU4170796A/en not_active Abandoned
- 1995-11-24 EP EP19950940124 patent/EP0801662B1/en not_active Expired - Lifetime
- 1995-11-24 DE DE19581340T patent/DE19581340D2/en not_active Expired - Fee Related
- 1995-11-24 DE DE59509692T patent/DE59509692D1/en not_active Expired - Lifetime
- 1995-11-24 AT AT95940124T patent/ATE206731T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0801662A1 (en) | 1997-10-22 |
| DE19581340D2 (en) | 1998-11-26 |
| WO1996016112A1 (en) | 1996-05-30 |
| DE59509692D1 (en) | 2001-11-15 |
| ATE206731T1 (en) | 2001-10-15 |
| EP0801662B1 (en) | 2001-10-10 |
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