WO2012146617A1 - Process for recycling polyphasic polyamide mouldings - Google Patents
Process for recycling polyphasic polyamide mouldings Download PDFInfo
- Publication number
- WO2012146617A1 WO2012146617A1 PCT/EP2012/057567 EP2012057567W WO2012146617A1 WO 2012146617 A1 WO2012146617 A1 WO 2012146617A1 EP 2012057567 W EP2012057567 W EP 2012057567W WO 2012146617 A1 WO2012146617 A1 WO 2012146617A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyamide
- foamed
- phase
- foamed phase
- shaped body
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0036—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting of large particles, e.g. beads, granules, pellets, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/26—Scrap or recycled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- 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
Definitions
- the present invention relates to a process for the recycling of multiphase shaped bodies.
- Polyphase shaped bodies eg. Example of a solid foam and prepared by anionic polymerization non-foamed polyamide, find use for example for the noise control and weight reduction of articles. After their end of life, it would be advantageous if these moldings could be recycled.
- the polymer foam and the non-foamed polyamide phases are compatible with each other, for. B. the polymer is a polyamide in both phases
- the laminate can be heated and z. B. compressed by a press or a stamp and then ground, see, for. B. Seelig et al., Development of a recycling process for cast polyamides, final report on a development project, funded by the German Federal Environmental Foundation, 1998. In the described method, the shaped body is ground.
- the polyamide phases can be chemically recycled, see e.g. B. Braun et al., Chemie, Ingenieur,technik (73), 2001, pp. 183-190. This method can be useful if the two phases are not made of the same material, eg. Example, when the foamed polymer is composed of polypropylene and the non-foamed phase consists of polyamide, since in this way the polypropylene phase can be separated from the degraded polyamide phase.
- the chemical recycling is very expensive.
- the molding should preferably be recyclable without prior separation of the foam component from the non-foamed phase.
- this object could be achieved by heating and compressing the multiphase molding, milling it and, if appropriate, adding additives and, if necessary, further polymers, plasticizing and processing.
- the subject of the present invention is therefore a process for recycling multiphase shaped bodies (F1), comprising at least one foamed phase and at least one non-foamed phase produced by reaction injection molding (RIM), wherein the shaped body is first compressed, comminuted and heated and then in plasticized state is processed into a shaped body (F2).
- F1 multiphase shaped bodies
- RIM reaction injection molding
- a further subject of the present invention is also a shaped article (F2), which can be produced by the process according to the invention.
- the moldings producible according to the invention can be used like any other conventional polyamide granules.
- the moldings (F1) to be recycled consist of at least one solid foam phase and at least one non-foamed phase, in particular cast polyamide phase, both of which may be filled.
- Typical fillers are fibers (glass, carbon, aramid) which may be long, short, woven (woven) or laid (scrim).
- Other examples of inorganic fillers are calcium carbonate, mica, aluminum trihydrate, magnesium hydroxide and talc, to name but a few.
- Organic fillers are also possible, for. As wood, rubber and flame retardants.
- Cast polyamide is understood as meaning polyamides prepared by anionic polymerization.
- Typical monomers here are, for example, lactams, such as caprolactam, piperidone, pyrrolidone, laurolactam or mixtures thereof; Preference is given to caprolactam, laurolactam or mixtures thereof, particularly preferably caprolactam or laurolactam.
- lactams such as caprolactam, piperidone, pyrrolidone, laurolactam or mixtures thereof
- Preference is given to caprolactam, laurolactam or mixtures thereof, particularly preferably caprolactam or laurolactam.
- the polymer chains can be linear, crosslinked, cyclic or branched.
- One or more phases are foamed.
- Typical foams are polymer foams, e.g. Example of polyamide, polystyrene, polypropylene, polyurethane, polyamide, or PVC, just to name a few.
- Other foams are also possible, such as melamine-formaldehyde foam (Basotect® from BASF).
- the foamed phase contains in one embodiment of the invention at least one compound selected from the group consisting of polyamide, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycarbonate (PC), styrene-acrylonitrile (SAN), styrene-acrylonitrile-methacrylate (SAN-MA), acrylic butadiene styrene (ABS), polyphenylene ether (PPE), polysulfone (PSU), polyethylene (PE), polyethylene copolymers, polypropylene (PP), polymethylmethacrylimide (PMI), polyurethane (PU or PUR).
- PBT polybutylene terephthalate
- PET polyethylene terephthalate
- PC polycarbonate
- SAN styrene-acrylonitrile
- SAN-MA styrene-acrylonitrile-methacrylate
- ABS acrylic butadiene styrene
- PPE polyphenylene
- the moldings may have different shapes, for. B. layers of foam and anionically produced polylactam, wherein the anionically produced polylactam often contains fillers. It may also be a closed mold having an inner foam phase and an outer polyamide phase, or vice versa.
- the multiphase molding (F1) consists of one or more foamed polyamide phases with> 30 vol.%, Preferably> 50 vol.%, Particularly preferably> 70 vol.% Of polyamide and one or more non-foamed, by anionic polymerization prepared polyamide phases with> 30 vol.%, Preferably> 50 vol.%, Particularly preferably> 70 vol.% Polyamide.
- the foamed phase of the shaped body (F1) consists essentially of polyamide.
- the non-foamed phase of the shaped body (F1) consists essentially of polyamide.
- the volume which is often largely determined by the foam, must be reduced.
- the product can be compressed, which can be achieved by pressure and / or temperature. It is best to bring the temperature to at least the glass or crystallization temperature of the foam, depending on whether the foam is crystalline or amorphous, plus 10 ° C (preferably plus 20 ° C). This can be done before, during or after the compression step, the first two being very preferred.
- the product Before, during or after this step, the product can be crushed, preferably by grinding.
- the particles formed by grinding preferably have a D (50) numerical value of ⁇ 10 mm. This millbase can be used directly, z. By injection molding, extrusion or pressing.
- the D (50) value means that 50% of the particles have a diameter ⁇ 10 mm, and 50% have a diameter of> 10 mm, measured along the longest axis. The counting takes place on the basis of photographs.
- At least one further additive is added during processing in the plasticized state;
- the additive may be selected from fibers, such as. Glass and / or carbon fibers, compatibilizers, stabilizers, flame retardants, dyes and / or pigments.
- the millbase is placed in an extruder and optionally mixed with fresh polymers, or with fillers, such as glass, carbon and / or aramid fibers; with additives such.
- fresh polymers is most often meant polyamides, rubbers, and polyamide block copolymers, especially polyamide, but other polymers may be used, and if the other "fresh polymers" are not or only partially compatible with the processed product be appropriate to add a compatibilizer.
- these may be block copolymers with at least one block in one polymer phase and at least one block in the other polymer phase of the blend.
- the compatibilizer may also be a polymer that is compatible with the fresh polymer and contains reactive groups that react with the other phase. The reactive groups are usually epoxy or anhydride groups that react with the polyamide phase to give graft copolymers.
- the compatibilizer may be mixed in the non-foamed phase (particularly polyamide phase) overlay, mixed in the foamed phase, or present as a reactive group in the foamed phase polymer chains.
- a compatibilizer is used, which is located after the plasticizing process predominantly at the interface of two or more polymer phases.
- the rubber should be compatible with one or both polymer phases.
- Typical examples include, among others, EPDM rubbers or ethylene-butyl acrylate rubbers containing maleic acid groups. The maleic acid groups react with the polyamide to give rubber particles in the polyamide phase which stabilize the polyamide chains grafted on the rubber.
- Other examples are the use of EPDM rubbers when polypropylene is used. Examples
- Trial 1 is repeated, but the millbase is processed with 0.5% Irganox 1098 from Ciba Geigy in an extruder at 260 ° C and then injection molded. The moldings are white and have a high toughness. 3.
- Trial 2 is repeated, but the extrusion step is set to 70 Tie. Polymer 30 Tie glass fiber in the form of roving metered into the polymer melt. The moldings are white and have high toughness and rigidity.
- a caprolactam mixture (200 g caprolactam plus 4 g C20 plus 8 g.) was added to a polypropylene (PP) foam, (density 100 gels I) with a thickness of 4 mm, which was positioned in a tool (cavity 8 mm) C10 were mixed at 100 ° C and immediately molded) at 100 ° C with the tool heated to 150 ° C. After 3 minutes, the mold was opened.
- PP polypropylene
- the resulting laminated molded article of polycaprolactam, polypropylene foam and polycaprolactam is heated in a press at 200 ° C, compressed under pressure, cooled, ground and in an extruder with 0.5 wt.% Irganox 1098 from Ciba Geigy and 2% of a polypropylene grafted with 0.7 wt% maleic acid, blended at 260 ° C.
- Injection moldings from the product are white, have good toughness and surface area.
- a caprolactam mixture (200 g caprolactam plus 4 g C20 plus 8 g C10) was added to a 4 mm thick PA 12 foam (density 100 gels I) with a thickness of 4 mm positioned in a tool (cavity 8 mm) 100 ° C mixed and immediately placed in a mold) at 100 ° C was added, the tool was heated to 150 ° C. After 3 minutes, the mold was opened.
- This structure is heated to 210 ° C (above the melting point of PA 12) and compressed.
- the resulting material with a density of 1, 1 gl I is crushed.
- Example 1 was repeated, with the difference that glass fiber fabric (280 gl m 2 , twill 2/2, no. 92125 from Interglass) is used as cover layer. Six layers of 2 mm thick layers are used; the glass fiber content is 40% by volume (VZ 580).
- glass fiber fabric 280 gl m 2 , twill 2/2, no. 92125 from Interglass
- the granules obtained are filled into an extruder heated to 250 ° C. at a rate of 5 kg / h and melted; For this purpose, fresh PA 6 is added at a rate of 5 kg / h.
- PA granules are obtained with short glass fibers.
- Example 1 was repeated, with the difference that polyurethane (PU) foam with a T g of 170 ° C is used. The tool had a temperature of 130 ° C.
- Example 1 was repeated, with the difference that MDI foam from the company Evonik (Rohacell® 71 IG) is used. The tool had a temperature of 130 ° C.
- Example 1 was repeated except that polybutylene terephthalate (PBT) / polycarbonate (PC) foam was used.
- the tool had a temperature of 130 ° C.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Sustainable Development (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280019794.5A CN103492144A (en) | 2011-04-28 | 2012-04-25 | Process for recycling polyphasic polyamide mouldings |
EP12718637.7A EP2701888A1 (en) | 2011-04-28 | 2012-04-25 | Process for recycling polyphasic polyamide mouldings |
BR112013026084A BR112013026084A2 (en) | 2011-04-28 | 2012-04-25 | process for recycling multistage molded parts and molded part |
KR20137031271A KR20140027327A (en) | 2011-04-28 | 2012-04-25 | Process for recycling polyphasic polyamide mouldings |
JP2014506847A JP2014513183A (en) | 2011-04-28 | 2012-04-25 | Method for recycling multiphase polyamide moldings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110017668 DE102011017668A1 (en) | 2011-04-28 | 2011-04-28 | Process for the recycling of multiphase moldings |
DE102011017668.3 | 2011-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012146617A1 true WO2012146617A1 (en) | 2012-11-01 |
Family
ID=46026798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/057567 WO2012146617A1 (en) | 2011-04-28 | 2012-04-25 | Process for recycling polyphasic polyamide mouldings |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2701888A1 (en) |
JP (1) | JP2014513183A (en) |
KR (1) | KR20140027327A (en) |
CN (1) | CN103492144A (en) |
BR (1) | BR112013026084A2 (en) |
DE (1) | DE102011017668A1 (en) |
WO (1) | WO2012146617A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104325588A (en) * | 2014-08-26 | 2015-02-04 | 东华大学 | Method for preparing fiber-enhanced polyurethane foam material from waste ultrahigh molecular weight polyethylene composite material |
US9834885B2 (en) | 2012-12-04 | 2017-12-05 | Basf Se | Process for the production of a fiber-reinforced composite material |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1069087A (en) * | 1963-05-31 | 1967-05-17 | Monsanto Co | Polyamides |
DE4310850A1 (en) * | 1993-04-02 | 1994-10-06 | Bayer Ag | High-impact, filled polyamide mixtures containng polyamide/polyethylene multilayer film scrap |
EP1106344A2 (en) * | 1999-12-10 | 2001-06-13 | Basf Aktiengesellschaft | Sandwich panel |
EP1249465A1 (en) * | 2001-04-12 | 2002-10-16 | EMS-Chemie AG | Polyamide sythesized by anionic polymerization, process for producing the same and process for recycling polyamide |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD83841A (en) * | ||||
DE2811642C2 (en) * | 1978-03-17 | 1979-07-26 | Dynamit Nobel Ag, 5210 Troisdorf | Process for producing polyolefin-based foams |
EP0583595B1 (en) * | 1992-07-20 | 1996-05-22 | Bayer Ag | Impact resistant, optionally filled polyamide mixtures with polyamide-polyethylene laminated film wastes |
TW460525B (en) * | 1994-02-28 | 2001-10-21 | Ciba Sc Holding Ag | A process for increasing the molecular weight of polyesters with a tetracarboxylic acid dianhydride and a sterically hindered hydroxy-phenylalkylphonic acid ester or half-ester |
GB2300194B (en) * | 1995-04-20 | 1998-11-18 | Chang Ching Bing | Method of recycling a discarded polyurethane foam article |
-
2011
- 2011-04-28 DE DE201110017668 patent/DE102011017668A1/en not_active Withdrawn
-
2012
- 2012-04-25 EP EP12718637.7A patent/EP2701888A1/en not_active Withdrawn
- 2012-04-25 WO PCT/EP2012/057567 patent/WO2012146617A1/en active Application Filing
- 2012-04-25 KR KR20137031271A patent/KR20140027327A/en not_active Application Discontinuation
- 2012-04-25 JP JP2014506847A patent/JP2014513183A/en not_active Withdrawn
- 2012-04-25 BR BR112013026084A patent/BR112013026084A2/en not_active IP Right Cessation
- 2012-04-25 CN CN201280019794.5A patent/CN103492144A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1069087A (en) * | 1963-05-31 | 1967-05-17 | Monsanto Co | Polyamides |
DE4310850A1 (en) * | 1993-04-02 | 1994-10-06 | Bayer Ag | High-impact, filled polyamide mixtures containng polyamide/polyethylene multilayer film scrap |
EP1106344A2 (en) * | 1999-12-10 | 2001-06-13 | Basf Aktiengesellschaft | Sandwich panel |
EP1249465A1 (en) * | 2001-04-12 | 2002-10-16 | EMS-Chemie AG | Polyamide sythesized by anionic polymerization, process for producing the same and process for recycling polyamide |
Non-Patent Citations (2)
Title |
---|
B. BRAUN ET AL., CHEMIE, INGENIEUR, TECHNIK, vol. 73, 2001, pages 183 - 190 |
SEELIG, WALTER: "Entwicklung eines Recyclingverfahrens für Guß-Polyamide", 31 July 1998 (1998-07-31), pages 26PP, XP002678950, Retrieved from the Internet <URL:http://www.dbu.de/ab/DBU-Abschlussbericht-AZ-06502.pdf> [retrieved on 20120629] * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9834885B2 (en) | 2012-12-04 | 2017-12-05 | Basf Se | Process for the production of a fiber-reinforced composite material |
CN104325588A (en) * | 2014-08-26 | 2015-02-04 | 东华大学 | Method for preparing fiber-enhanced polyurethane foam material from waste ultrahigh molecular weight polyethylene composite material |
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EP2701888A1 (en) | 2014-03-05 |
DE102011017668A1 (en) | 2012-10-31 |
KR20140027327A (en) | 2014-03-06 |
JP2014513183A (en) | 2014-05-29 |
BR112013026084A2 (en) | 2019-09-24 |
CN103492144A (en) | 2014-01-01 |
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