WO2005092962A1 - プラスチックの分解方法 - Google Patents
プラスチックの分解方法 Download PDFInfo
- Publication number
- WO2005092962A1 WO2005092962A1 PCT/JP2005/005366 JP2005005366W WO2005092962A1 WO 2005092962 A1 WO2005092962 A1 WO 2005092962A1 JP 2005005366 W JP2005005366 W JP 2005005366W WO 2005092962 A1 WO2005092962 A1 WO 2005092962A1
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- WO
- WIPO (PCT)
- Prior art keywords
- thermosetting resin
- polyester
- decomposition
- acid
- residue derived
- Prior art date
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Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
-
- 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 method for decomposing plastic, particularly for recovering plastic valuables from waste.
- the plastic is made into an oil component that has been decomposed into a low molecular weight by decomposition, and this is reused mainly as a liquid fuel.
- a decomposition method using a hydrolysis reaction with high-temperature steam has also been proposed. According to this method, the organic polymer components of the thermoplastic plastic and the thermosetting plastic can be temporarily decomposed.
- Patent Document 1 JP-A-8-85736
- Patent Document 2 JP-A-2000-53801
- the present invention has been made in view of the above points, and it is an object of the present invention to provide a method for decomposing plastic, which can decompose plastic so that it can be reused as a raw material of plastic. is there.
- thermosetting resin containing a polyester and a crosslinked portion thereof is treated with subcritical water at a temperature lower than the thermal decomposition temperature of the thermosetting resin.
- thermosetting resin plastic
- a thermosetting resin (plastic) comprising a polyester and a crosslinked portion thereof is treated with subcritical water at a temperature lower than the thermal decomposition temperature of the thermosetting resin.
- the decomposition products can be reused as raw materials for producing plastics.
- a compound containing an acid residue derived from a polyester and a residue derived from a crosslinked portion is added not only to a raw material of a thermosetting resin but also to another resin as a low shrinkage agent or a surfactant. It can also be used as a dispersant for pigments in inks and inks.
- the present invention provides that the subcritical water contains an alkali salt (preferably an alkali metal hydroxide). It is preferred to contain.
- an alkali salt preferably an alkali metal hydroxide
- thermosetting resin since the hydrolysis reaction of the thermosetting resin is promoted, the processing time can be shortened.
- organic acid generated by treating the thermosetting resin with subcritical water can be neutralized with an alkali salt base, the polyhydric alcohol generated at the same time has an acid catalytic effect of the organic acid. Thus, secondary decomposition can be suppressed, and polyhydric alcohol can be efficiently recovered.
- the present invention relates to an acid contained in a compound containing an acid residue derived from a polyester obtained by decomposing a thermosetting resin and a residue derived from a crosslinked portion, wherein the content of the alkali salt is contained. It is preferably at least 2 molar equivalents relative to the theoretical number of moles of the residue.
- the organic acid can be sufficiently neutralized, and the effect of suppressing the secondary decomposition of the polyhydric alcohol by the organic acid can be enhanced.
- a compound containing an acid residue derived from the polyester and a residue derived from a crosslinked portion can be obtained in high yield.
- the method for decomposing a plastic according to the present invention includes an acid residue derived from a polyester and a residue derived from a crosslinked portion obtained by decomposing a thermosetting resin with subcritical water as described above. It is preferable to include a step of recovering the compound consisting of
- a compound comprising an acid residue derived from a polyester and a residue derived from a crosslinked portion can be used for IJ.
- thermosetting resin containing a polyester and a crosslinked portion thereof is not decomposed into a random form, and is a valuable polyhydric alcohol, a polybasic acid, or an acid derived from a polyester.
- the compound can be decomposed so as to obtain a compound containing a residue and a residue derived from a crosslinked portion. That is, it is possible to prevent the decomposition product from becoming an oily substance composed of various components, and to obtain a decomposition product of a certain quality.
- the resulting decomposition products can be reused as raw materials for producing plastics.
- FIG. 1 is a flowchart showing an embodiment of the method of the present invention.
- FIG. 2 is a schematic view showing steps in an example.
- FIG. 3 is a chart showing the results of analysis of a black form solution in Comparative Example 1. BEST MODE FOR CARRYING OUT THE INVENTION
- the plastic to be decomposed in the present invention is a thermosetting resin containing a polyester and a crosslinked portion thereof.
- the “polyester” is a polymer obtained by polycondensation of a polyhydric alcohol component and a polybasic acid component, in which a polyhydric alcohol residue and a polybasic acid residue are connected to each other via an ester bond.
- the polyester is not particularly limited as long as the object of the present invention can be achieved. Further, the polyester may include a double bond derived from, for example, an unsaturated polybasic acid.
- the “crosslinking portion” is a portion that crosslinks between the above polyester molecules.
- the crosslinked portion is, for example, a portion derived from a crosslinking agent, but is not particularly limited. Further, the crosslinked portion may be a portion derived from one crosslinker or a portion derived from an oligomer or polymer obtained by polymerizing a plurality of crosslinkers (hereinafter, collectively referred to as “polymer”). Further, the bonding position and bonding mode between the molecule and the polyester are not particularly limited.
- thermosetting resin containing polyester and its crosslinked portion refers to a reticulated heat obtained by crosslinking a polyester obtained from a polyhydric alcohol component and a polybasic acid component via a crosslinked portion. It is a curable resin (reticulated polyester resin).
- the resin may be any type of resin as long as the object of the present invention is achieved. That is, there is no limitation on the type, structure, and constituent components of the resin, the type, amount and degree of cross-linking (cross-linking agent), the type and amount of additives, and the like.
- a preferred example of the resin is a reticulated polyester resin obtained by crosslinking a polyhydric alcohol and an unsaturated polyester which is an unsaturated polybasic acid with a crosslinking agent.
- thermosetting resin mainly refers to a resin cured (crosslinked) by heating or the like, but as long as the object of the present invention is achieved, curing (crosslinking) by heating or the like is possible. Includes ongoing uncured or partially cured resins.
- Examples of the above-mentioned polyhydric alcohol include glycols such as ethylene glycol, propylene glycol, jetylene glycol, and dipropylene glycol, but are not limited thereto. These can be used in combination.
- Examples of the polybasic acids include aliphatic unsaturated polybasic acids (for example, aliphatic unsaturated dibasic acids such as maleic anhydride, maleic acid, and fumaric acid).
- a saturated polybasic acid such as phthalic anhydride may be used in combination with the unsaturated polybasic acid.
- cross-linking agent may be exemplified by a polymerizable vinyl monomer such as styrene-methyl methacrylate.
- the cross-linking agent is not limited to this.
- the present invention provides a method for producing the above thermosetting resin, which comprises subcritical water having a temperature lower than the decomposition temperature of the thermosetting resin.
- thermosetting resin mainly, waste of thermosetting plastic
- temperature and pressure are increased to bring the water to a subcritical state, thereby decomposing the thermosetting resin.
- polyester-derived monomer polyhydric alcohol and polybasic acid
- the “compound comprising an acid residue derived from the polyester and a residue derived from the crosslinked portion” is a reaction product of a polybasic acid generated by hydrolysis of the polyester and the crosslinked portion.
- the acid residue includes a residue derived from a polymer obtained by polymerizing the above polybasic acid.
- the polyester has a fumaric acid residue and the crosslinked portion is a styrene polymer, a styrene-fumaric acid copolymer is obtained as the above compound.
- the mixing ratio of the above thermosetting resin and water is not particularly limited, but the amount of water to be added is in the range of 100 to 500 parts by mass with respect to 100 parts by mass of the thermosetting resin. Is preferred.
- subcritical water in the present invention means that the temperature and pressure of water are below the critical point of water (critical temperature 374.4 ° C, critical pressure 22. IMPa), and the temperature is 140 ° C. C or more (In this case, since the ion product becomes about 100 times the normal temperature and the dielectric constant of water drops about 50% of the normal temperature, hydrolysis is promoted and the thermosetting resin can be monomerized. ), Water with a pressure at that time in the range of 0.36MPa (saturated vapor pressure of 140 ° C) or more! , U.
- the subcritical water temperature in the present invention is lower than the thermal decomposition temperature of the thermosetting resin, and is preferably in the range of 180 to 270 ° C. If the temperature at the time of the decomposition reaction is lower than 180 ° C, it takes a long time for the decomposition treatment, and the treatment cost may increase. On the other hand, the temperature during the decomposition reaction When the temperature exceeds 270 ° C, the polyester and the crosslinked portion are decomposed, and it may be difficult to recover a compound containing an acid residue derived from the polyester and a residue derived from the crosslinked portion.
- thermosetting resin The thermal decomposition temperature of thermosetting resin is defined as the tangent drawn at the inflection point of the resin component decomposition step in the chart obtained by thermogravimetric analysis (TG analysis) of the resin sample, and the zero horizontal line of the TG curve. Means the temperature corresponding to the intersection of
- the treatment time with subcritical water is preferably about 114 hours, which depends on conditions such as the reaction temperature.
- the processing time is preferably shorter because the processing cost is reduced.
- the pressure of the decomposition reaction (during the treatment with subcritical water) varies depending on conditions such as the reaction temperature, but is preferably in the range of about 2 to 15 MPa.
- thermosetting plastics resins manufactured from raw materials containing polyhydric alcohols and organic acids.
- the above-mentioned thermosetting resin is brought into contact with subcritical water at a temperature lower than the thermal decomposition temperature of the resin while treating the resin, whereby the hydrolysis reaction is selectively performed. Can wake up. As a result, it is possible to obtain a compound containing an acid residue derived from a polyhydric alcohol, a polybasic acid, or a polyester and a residue derived from a crosslinked portion, which are valuables.
- These decomposition products can be collected and reused as raw materials for producing plastics.
- the subcritical water contains an alkali salt. Since the hydrolysis reaction of the thermosetting resin is promoted by the alkali salt, the processing time can be shortened, and the processing cost can be reduced.
- thermosetting resin is treated with subcritical water in a high temperature range close to the supercritical state, polyhydric alcohol, which is a decomposition product, is secondarily decomposed by the acid catalysis effect of the organic acid generated at the same time. There is a possibility that.
- an alkali salt is contained in subcritical water, the organic acid can be neutralized by the base of the alkali salt, so that the above-mentioned secondary decomposition can be suppressed.
- alkali salt means a salt of an alkali metal or an alkaline earth metal which shows a basic property by reacting with an acid, for example, potassium hydroxide (KOH) or hydroxide potassium.
- Alkali metal hydroxides such as sodium hydroxide (NaOH), calcium carbonate, barium carbonate, calcium hydroxide , Magnesium carbonate, etc. Power is not limited to this. Of these, alkali metal hydroxides are particularly preferred.
- the content of the alkali salt in the above subcritical water is not particularly limited, but the content of the acid residue derived from the polyester obtained by decomposing the thermosetting resin and the residue derived from the crosslinked portion are not limited. It is preferably at least 2 molar equivalents based on the theoretical number of moles of the acid residue contained in the compound. When the content of the alkali salt is less than 2 molar equivalents, there is a possibility that the compound may be difficult to recover.
- the upper limit of the content of the alkali salt in the subcritical water is not particularly limited, but is preferably 10 molar equivalents or less.
- theoretical molar number of the acid residue contained in the compound containing the acid residue derived from the polyester and the residue derived from the cross-linking portion means that the compound obtained by decomposition is analyzed by NMR. It indicates the estimated number of moles of the acid residue present in the compound, determined from the ratio of the number of the molecules of the acid residue to the residue derived from the crosslinked portion and the amount of the used crosslinkable material.
- Figure 1 shows the use of subcritical water to decompose a thermosetting resin containing a polyester and its cross-linking part, and acid residues from polyhydric alcohols, polybasic acids, and polyester, and residues from the cross-linking part.
- 4 is a flow chart showing a process for recovering a compound comprising the above and an inorganic filler contained in the resin.
- thermosetting resin to be decomposed is mixed with an additive such as water and an alkali metal hydroxide, and the mixture is heated and pressurized to decompose the thermosetting resin.
- the thermosetting resin is decomposed with subcritical water at a temperature lower than the temperature.
- solid-liquid separation is performed by a method such as filtration.
- an inorganic filler such as glass fiber or calcium carbonate contained in the thermosetting resin is obtained as a solid content.
- Water and water-soluble components dissolved therein are obtained as liquid components. If the solid content contains an unreacted residue of the thermosetting resin or the like, the solid content is mixed with a solvent such as chloroform as necessary. This makes it possible to separate the component soluble in the solvent (unreacted residue of the thermosetting resin) from the inorganic filler insoluble in the solvent. As a result, the inorganic filler can be recovered with high purity.
- neutralization is performed by adding an acidic solution such as hydrochloric acid to the liquid component obtained by the solid-liquid separation. Causes a precipitate by acidification.
- the aqueous phase and the precipitate are separated by a method such as filtration.
- a compound containing an acid residue derived from the polyester and a residue derived from the crosslinked portion for example, a styrene-fumaric acid copolymer (styrene fumarate) or a styrene maleic acid copolymer
- a compound containing an acid residue derived from the polyester and a residue derived from the crosslinked portion for example, a styrene-fumaric acid copolymer (styrene fumarate) or a styrene maleic acid copolymer
- the obtained styrene fumarate or the like can be added to another resin and reused as a low shrinkage agent, or as a surfactant or a dispersant for a pigment in an ink. Further, by distilling the aqueous phase obtained above, water, a polyhydric alcohol such as dalicol and an organic acid can be separately recovered. These can be reused as raw materials (monomers) for manufacturing plastics. The water obtained by the distillation can be used again as water for producing subcritical water.
- thermosetting resin the thermal decomposition temperature of the thermosetting resin, the glycol recovery rate, the organic acid recovery rate, the decomposition rate, and the compound containing an acid residue derived from polyester and a residue derived from a crosslinked portion
- the formation rate of “compound [1]” was determined as follows. [Thermal decomposition temperature of thermosetting resin]
- the glycol recovery was calculated from the following equation.
- Glycol recovery rate (%) Quantitative result of glycol monomer component Z Estimated content of dalicol monomer component in thermosetting resin X 100
- the organic acid recovery rate was calculated from the following equation.
- Organic acid recovery rate (%) Quantification result of organic acid monomer component Z Estimated content of organic acid monomer component of thermosetting resin X 100
- Decomposition rate (%) (Amount of thermosetting resin-Unreacted resin residue) Z Amount of thermosetting resin X 100
- Formation rate (%) of compound [1] (dry weight of precipitate formed by adding hydrochloric acid to water-soluble component after decomposition treatment to adjust pH to about 4) / (decomposed and obtained (Estimated content of compound [1], determined from the ratio of the number of molecules of acid residues and residues derived from the crosslinks obtained by analyzing the compound by NMR and the amount of the crosslinker forming material used) X 100
- thermosetting resin unsaturated polyester resin
- a varnish was prepared by blending 50 wt% of propylene glycol, a glycol which is a polyhydric alcohol, and 50 wt% of maleic anhydride, which is an unsaturated organic acid.
- styrene as a crosslinking agent was blended with the varnish in an approximately equivalent amount.
- 50% by weight of a mixture of varnish and styrene and 50% by weight of calcium carbonate were blended and cured to obtain the thermosetting resin.
- the thermal decomposition temperature of this thermosetting resin was 320 ° C.
- thermosetting resin 3 g of the above-mentioned thermosetting resin and 15 g of pure water were taken and charged in a reaction tube, and the inside of the reaction tube was replaced and sealed with argon gas.
- the reaction tube 1 charged with the thermosetting resin and pure water is immersed in a constant temperature bath 2 at 230 ° C to bring the pure water in the reaction tube 1 to a subcritical state.
- the thermosetting resin was decomposed by leaving it immersed for 4 hours. Thereafter, the reaction tube 1 was taken out of the constant temperature bath 2 and immersed in the cooling bath 3, and the reaction tube 1 was rapidly cooled and returned to room temperature.
- the content of the reaction tube 1 after the decomposition treatment was a water-soluble component, an unreacted resin residue, and carbonic acid calcium.
- the content was filtered to separate a solid content, and collected from the reaction tube 1.
- water-soluble components and unreacted resin residues were analyzed.
- the glycol monomer component was quantified by gas chromatography analysis (GC analysis) from the water-soluble component, and the glycol recovery was calculated.
- Organic acid monomer by ion exchange chromatography analysis (IC analysis) The components were quantified to calculate the organic acid recovery rate.
- the decomposition rate was calculated from the unreacted resin residue. Table 1 shows the results.
- Example 1 was repeated except that a 0.2 mol / L KOH aqueous solution was used instead of pure water.
- the decomposition treatment was performed in the same manner as in 1, and the glycol recovery rate, organic acid recovery rate, decomposition rate, and formation rate of compound [1] were calculated. The results are shown in Table 1.
- Example 1 was repeated except that a 0.5 mol / L KOH aqueous solution was used instead of pure water.
- the decomposition treatment was performed in the same manner as in 1, and the glycol recovery rate, organic acid recovery rate, decomposition rate, and formation rate of compound [1] were calculated. The results are shown in Table 1.
- Example 1 was repeated except that an aqueous solution of KOH having a concentration of 1.0 mol Z liter was used instead of pure water.
- the decomposition treatment was performed in the same manner as in 1, and the glycol recovery rate, organic acid recovery rate, decomposition rate, and formation rate of compound [1] were calculated. The results are shown in Table 1.
- Decomposition treatment was carried out in the same manner as in Example 1 except that the reaction tube 1 was immersed in a constant temperature bath 2 at 20 ° C. and subjected to decomposition treatment for 20 minutes, and the glycol recovery rate, organic acid recovery rate, decomposition rate, The production rate of compound [1] was calculated. The results are shown in Table 1.
- glycols and organic acids monomers recovered in the above Examples were propylene glycol and fumaric acid, respectively.
- Compound [1] precipitated by neutralizing the recovered water-soluble component was a styrene-fumaric acid copolymer represented by [Chemical Formula 1].
- FIG. 3 shows the result of introducing the chromate form solution in Comparative Example 1 into a gas chromatograph mass spectrometer and analyzing the components in the solution. As is evident from the analysis results, a number of components were detected and identified in the above solution, but compounds having various structural formulas were obtained. Therefore, it can be said that the thermal decomposition reaction is dominant in the decomposition treatment under these conditions, which impedes the high-quality recovery of valuable resources.
- thermosetting resin containing a polyester and a crosslinked portion thereof is converted at a temperature lower than the thermal decomposition temperature of the thermosetting resin.
- styrene-fumal which is a compound (compound [1]) containing acid residues derived from polyester and residues derived from the cross-linking part, is heated to glycols and organic acids. It was possible to recover the acid copolymer.
- the processing time of Examples 13 to 13 is longer than that of Comparative Examples 1 and 2.
- Glycols and organic acids can be obtained by processing at a force temperature of 360 to 230 ° C. It was confirmed that the recovery rate of wastewater was improved.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2006511493A JP4473268B2 (ja) | 2004-03-26 | 2005-03-24 | プラスチックの分解方法 |
US10/593,081 US7601760B2 (en) | 2004-03-26 | 2005-03-24 | Method of decomposing plastic |
EP20050721380 EP1731557B1 (en) | 2004-03-26 | 2005-03-24 | Method of decomposing plastic |
Applications Claiming Priority (2)
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JP2004-093363 | 2004-03-26 | ||
JP2004093363 | 2004-03-26 |
Publications (1)
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WO2005092962A1 true WO2005092962A1 (ja) | 2005-10-06 |
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PCT/JP2005/005366 WO2005092962A1 (ja) | 2004-03-26 | 2005-03-24 | プラスチックの分解方法 |
Country Status (5)
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US (1) | US7601760B2 (ja) |
EP (1) | EP1731557B1 (ja) |
JP (2) | JP4473268B2 (ja) |
CN (1) | CN100519638C (ja) |
WO (1) | WO2005092962A1 (ja) |
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- 2005-03-24 WO PCT/JP2005/005366 patent/WO2005092962A1/ja not_active Application Discontinuation
- 2005-03-24 EP EP20050721380 patent/EP1731557B1/en not_active Not-in-force
- 2005-03-24 JP JP2006511493A patent/JP4473268B2/ja active Active
- 2005-03-24 CN CNB2005800092799A patent/CN100519638C/zh not_active Expired - Fee Related
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2009
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Cited By (17)
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JP2007001896A (ja) * | 2005-06-22 | 2007-01-11 | Matsushita Electric Works Ltd | グリコールの分離方法 |
JP2007224081A (ja) * | 2006-02-21 | 2007-09-06 | Matsushita Electric Works Ltd | スチレンマレイン酸共重合体の回収方法 |
JP2008050491A (ja) * | 2006-08-25 | 2008-03-06 | Matsushita Electric Works Ltd | プラスチックの亜臨界水分解液からの固形物分離洗浄方法 |
JP4735474B2 (ja) * | 2006-08-25 | 2011-07-27 | パナソニック電工株式会社 | プラスチックの亜臨界水分解液からの固形物分離洗浄方法 |
JP2008156171A (ja) * | 2006-12-25 | 2008-07-10 | Matsushita Electric Works Ltd | 無機成形品 |
JP2008231394A (ja) * | 2007-02-23 | 2008-10-02 | Matsushita Electric Works Ltd | 熱硬化性樹脂の分解・回収方法 |
JP2009029917A (ja) * | 2007-07-26 | 2009-02-12 | Panasonic Electric Works Co Ltd | プラスチック用低収縮材とそれを用いたプラスチック成形品、プラスチック用低収縮材の製造方法、並びにプラスチックの回収・再利用方法 |
JP2009149818A (ja) * | 2007-12-21 | 2009-07-09 | Panasonic Electric Works Co Ltd | 熱硬化性樹脂の分解・回収方法 |
JPWO2009081974A1 (ja) * | 2007-12-25 | 2011-05-06 | パナソニック電工株式会社 | 熱硬化性樹脂の分解および分解生成物の回収方法 |
WO2009081974A1 (ja) | 2007-12-25 | 2009-07-02 | Panasonic Electric Works Co., Ltd. | 熱硬化性樹脂の分解および分解生成物の回収方法 |
JP2010043273A (ja) * | 2007-12-25 | 2010-02-25 | Panasonic Electric Works Co Ltd | 熱硬化性樹脂の分解および分解生成物の回収方法 |
JP4440337B2 (ja) * | 2007-12-25 | 2010-03-24 | パナソニック電工株式会社 | 熱硬化性樹脂の分解および分解生成物の回収方法 |
WO2009119742A1 (ja) | 2008-03-26 | 2009-10-01 | パナソニック電工株式会社 | 熱硬化性樹脂の分解および分解生成物の回収方法 |
US8653150B2 (en) | 2008-03-26 | 2014-02-18 | Panasonic Corporation | Method for decomposing thermoset resin and recovering decomposition product |
WO2010050442A1 (ja) * | 2008-10-27 | 2010-05-06 | 国立大学法人静岡大学 | 熱硬化エポキシ樹脂の再生成方法及び熱硬化樹脂再生成用組成物 |
JP2010189636A (ja) * | 2009-01-26 | 2010-09-02 | Panasonic Electric Works Co Ltd | プラスチックの分解・回収方法 |
KR101863276B1 (ko) | 2017-01-12 | 2018-05-31 | 한국과학기술연구원 | 용해 공정을 이용한 복합 재료 리페어 방법 및 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP2010007074A (ja) | 2010-01-14 |
US20070197669A1 (en) | 2007-08-23 |
EP1731557B1 (en) | 2014-07-09 |
EP1731557A1 (en) | 2006-12-13 |
US7601760B2 (en) | 2009-10-13 |
CN100519638C (zh) | 2009-07-29 |
CN1934177A (zh) | 2007-03-21 |
EP1731557A4 (en) | 2012-12-26 |
JPWO2005092962A1 (ja) | 2008-02-14 |
JP4473268B2 (ja) | 2010-06-02 |
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