WO2002088326A1 - Procede de decomposition de copolymere d'acide carboxylique insature - Google Patents
Procede de decomposition de copolymere d'acide carboxylique insature Download PDFInfo
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- WO2002088326A1 WO2002088326A1 PCT/JP2002/003992 JP0203992W WO02088326A1 WO 2002088326 A1 WO2002088326 A1 WO 2002088326A1 JP 0203992 W JP0203992 W JP 0203992W WO 02088326 A1 WO02088326 A1 WO 02088326A1
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- carboxylic acid
- unsaturated carboxylic
- group
- acid copolymer
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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
- C08J11/18—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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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 an unsaturated carboxylic acid-based copolymer. More specifically, the present invention relates to a method for decomposing an unsaturated carboxylic acid copolymer at the time of disposal thereof without adversely affecting the natural environment.
- Unsaturated carboxylic acid-based polymers such as acrylic acid-based polymers and their crosslinked products are used as additives for detergent builders and muddy water compositions for ground excavation, soil water retention agents, and water-absorbing materials such as disposable diapers. , Are used in a wide range of fields.
- the detergent builder is used as an auxiliary component of the surfactant in order to enhance the cleaning ability of the synthetic detergent for textiles.
- sodium carbonate, sodium silicate, sodium borate, etc. were used, but when hard water was used for washing water, insoluble precipitates composed of surfactant metal salts were used. Therefore, sodium tripolyphosphate has come to be used without generating a precipitate even when hard water is used.
- sodium tripolyphosphate has a problem that it causes eutrophication of lakes and rivers. Therefore, type A zeolite, which has little adverse effect on the natural environment, is used. However, this A-type zeolite has insufficient performance as a builder, and an acrylic acid polymer is used to supplement the performance.
- Additives to the mud composition for excavation of the ground may absorb frictional heat generated during excavation of the ground, carry out excavation from the bottom of the pit to the ground, maintain the pit wall, or collapse the collapsed stratum. Used as an additive component to muddy water compositions injected into excavation sites for prevention and other purposes. In addition, as a soil water retention agent to help the growth of plants planted to green dry soil It is used. In the livestock industry and agriculture, unsaturated carboxylic acid-based polymers are used as coagulants for solid-liquid separation of livestock manure, and are not used as fermentation aids for compost. A crosslinked product of a saturated carboxylic acid polymer is used.
- starch-based water-absorbent resins hyaluronic acid-based water-absorbent resins, and polyglutamic acid-based water-absorbent resins (Japanese Patent Application Laid-Open No. Japanese Patent Application Laid-Open Nos. Hei 7-300563 and Hei 10-250142) have been proposed, but these water-absorbing resins are acrylic acid polymer-based water-absorbing resins. Compared to resins, they have poor water absorbency and are difficult to manufacture.
- An object of the present invention is to provide a method for decomposing an unsaturated carboxylic acid copolymer which does not adversely affect the natural environment at the time of disposal.
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, it has been found that an in vitro secretory enzyme of a white-rot fungus or a white-rot fungus degrades an unsaturated carboxylic acid copolymer having a specific chemical structure.
- the present inventors have found that the present invention has the ability to perform the present invention, and have completed the present invention based on such knowledge.
- the gist of the present invention is as follows.
- R 1 represents a hydrogen atom or a methyl group
- X represents a hydrogen atom, an alkali metal atom or an ammonium group
- Y represents a hydrogen atom, a methyl group or —COOX.
- R 'and Y have the meanings identical to R 1 and ⁇ in the general formula (1), Zeta 1 represents a functional group having the property of generating radicals.
- An unsaturated carboxylic acid characterized by contacting an unsaturated carboxylic acid copolymer having a repeating unit represented by the formula (2) or a cross-linked product thereof with a white-rot fungus or a white-rot fungus extracorporeal secretion enzyme. How to decompose the copolymer.
- Replacement paper (Rule 26) Ar in the formulas [3] to [22] represents an aromatic hydrocarbon group having 6 to 14 carbon atoms
- R 2 represents a hydrocarbon group having 1 to 10 carbon atoms, an amino group, —C OO X (where X represents a hydrogen atom, an alkali metal atom or an ammonium group), one so 3 x (where X represents a hydrogen atom, an alkali metal atom or an ammonium group), one CHO or one N0 2 shows a
- R 3 represents a hydrogen atom, an alkali metal atom or a hydrocarbon group with carbon number.
- R 4 represents a divalent hydrocarbon group of from 1 to 1 0 carbon atoms
- R 5 is hydrogen It represents an atom, a methyl group or an ethyl group
- R 6 represents a hydrocarbon group having 1 to 10 carbon atoms.
- M is an integer of 0 to 5
- n is an integer of 0 to 5
- (m + n) is an integer of 1 to 5.
- the unsaturated carboxylic acid-based copolymer has the following general formula (23)
- a crosslinked product of an unsaturated carboxylic acid copolymer is reacted with a water-soluble compound having two or more functional groups capable of reacting with a carboxyl group in one molecule with an unsaturated carboxylic acid copolymer.
- the crosslinked product of the unsaturated carboxylic acid copolymer is a crosslinked product obtained by reacting a compound having two or more unsaturated groups in one molecule during the polymerization of the unsaturated carboxylic acid.
- the method for decomposing an unsaturated carboxylic acid-based copolymer according to any one of the above (1) to (3).
- the white rot fungi are of the genus Phanerochaete, the genus Pleiatus (PI eurotus), and the trametes! ⁇ , selected from bacteria belonging to the genus Ceriporiopsis, the genus Lentinu 1a, the genus Coriolus, the genus Coriolus, the genus Bjerokandera, and the genus Pycnoporus.
- Sa The method for decomposing an unsaturated carboxylic acid-based copolymer according to any one of the above (1) to (5), wherein the unsaturated carboxylic acid copolymer is one or more kinds of bacteria.
- FIG. 1 is a chart showing the results of measurement of the unsaturated carboxylic acid copolymer by the GPC method before and after decomposition in Example 1.
- the solid line F is the chart before decomposition and the dotted line L is the chart after decomposition.
- the numbers in the upper left represent the decomposition rate.
- FIG. 2 is a chart of the results of measurement of poly (acrylic acid) by the GPC method before and after decomposition in Comparative Example 1.
- the solid line F is the chart before disassembly
- the dotted line L is the chart after disassembly.
- the numbers in the upper left represent the decomposition rates.
- FIG. 3 is a chart showing the results of measurement of the unsaturated carboxylic acid copolymer by the GPC method before and after decomposition in Example 6.
- the solid line F is the chart before decomposition and the dotted line L is the chart after decomposition.
- the numbers in the upper left represent the decomposition rate.
- FIG. 4 is a chart showing the measurement results of the acrylic acid-acrylamide copolymer before and after decomposition in Example 7 by the GPC method.
- the solid line F is the chart before decomposition
- the dotted line L is the chart after decomposition.
- the numbers in the upper left represent the decomposition rate.
- the present invention relates to an unsaturated carboxylic acid copolymer having a repeating unit (1) represented by the general formula [1] and a repeating unit (2) represented by the general formula [2], or a cross-linked thereof.
- White rot fungus or extracorporeal white rot fungus This is a method for decomposing an unsaturated carboxylic acid copolymer by contacting a secretory enzyme.
- examples of the alkali metal atom represented by X include a lithium atom, a sodium atom, and a potassium atom.
- the aromatic hydrocarbon group having 6 1 4 represented by A r in the general formula for the functional group Z 1 in the general formula [2] [3] [2 2] Hue - Len group, Bifue -Len group, naphthylene group, anthrylene group and the like.
- the hydrocarbon group having 110 carbon atoms represented by R 2 includes a methyl group, an ethyl group, an n-propyl group, an i-propynole group, an n-butylinole group, an i-butynole group, and a sec— Butynole, tert-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n_nonyl, n-decyl, phenyl, tolyl, xylyl, benzyl Group, cyclopentyl group, cyclohexyl group and the like.
- R 3 represents a hydrocarbon group having 18 carbon atoms such as methyl group, ethyl group, n-propyl group, 1-propyl group, n-butyl group, i-butyl group, sec— Butyl group, tert-butyl group, n-pentyl group, n-xyl group, n-butyl group, n-octyl group, phenyl group, tolyl group, xylyl group, benzyl group, cyclopentyl group, cyclohexyl group, etc. Is mentioned.
- divalent hydrocarbon group having 110 carbon atoms represented by R 4 in the formula examples include a heptamethylene group, an octamethylene group, a nonamethylene group, a decamethylene group, and a phenylene group.
- examples of the hydrocarbon group having 110 carbon atoms represented by R 6 include the same groups as the hydrocarbon group having 110 carbon atoms represented by R 2 .
- unsaturated carboxylic acid-based copolymer which can be decomposed by the method of the present invention those produced by various methods can be used. For example, the following general formula [26]
- examples of the unsaturated compound represented by the general formula [26] include acrylic acid, methacrylic acid, maleic acid, fumaric acid, maleic anhydride and the like. Further, alkali metal salts or ammonium salts of these unsaturated carboxylic acids are used. These unsaturated compounds may be used alone or in any combination of two or more.
- Examples of the unsaturated compound represented by the general formula [27] include, for example, For example, 3-carboxy-N- (4-aminophenyl) -acrylamide, 3-carboxy-N- (3-aminophenyl) acrylamide, 3-carboxy-N- (2- Aminophenyl) 1-acrylamide, 3-force phenolic N- (4-hydroxyphenyl) 1-acrylamide, 3 1-carboxy-1 N— (3-hydroxyphenyl) 1-acrylamide, 3 —Carboxy-N— (2-hydroxyphenyl) -acrylamide, acrolein, methacrolein, crotonaldehyde, 2-methyl-2-butenal, ethylene sulfide, arylmercaptan , Aryl cyanide, arylamine, acrylonitrile, atarylamide, methacrylnitril, methacrylamide, acrylic acid hydrazide, 4 -— (phenyl Luazo) benzyl acrylate and their metal salt
- [RA r, R 3, m, n in the formula [2 8] has the general formula [3] - [R in 8] ', A r, has a R 3, m, same meaning as n.
- aromatic compound represented by the general formula [28] for example, dydroquinone, resorcinol, p-methoxyphenol, 1,5-dihydroxynaphthalene, 2,6- Dihydroxynaphthalene, dihydroxytraquinone, dihydroxybenzoic acid, dihydroxybenzanoledeide, 1.4_benzoquinone, dihydroxybenzenes Nolefonic acid, dihydroxybenzonitrile, dihydroxyxonitrobenzene, ⁇ -aminophenol, m-aminophenol, o-aminophenol, p-diaminobenzene, m-benzenebenzene, o—diaminobenzene, 2,5—dimethoxyaniline, 2,3—dimethoxyaniline, 2,4—dimethoxyaniline, 3,4—dimethoxyaniline, 3,5—dimethoxyaniline, 2,5 —Dihydroxyroxyline, 2, 3 —Dihydroxyroxyline, 2, 4
- the unsaturated carboxylic acid copolymer has a repeating unit (1) represented by the general formula [1] and a repeating unit (2) represented by the general formula [2].
- the content ratio of the repeating unit (1) and the repeating unit (2) it is preferable that the latter is 0.5 mol% or more.
- the content of the repeating unit (2) is 0.5 mol. If the copolymer is less than / 0 , the biodegradability may decrease.
- the unsaturated carboxylic acid copolymer used in the present invention is the same as that described above.
- other repeating units such as butyl acetate, methyl acrylate, and acrylic acid Containing repeating units derived from one or more compounds such as acrylates such as ethyl and propyl acrylate, and methacrylates such as methyl methacrylate and ethyl methacrylate It may be.
- the content of the repeating unit other than these repeating units (1) and (2) is desirably within 30 mol%, so that the hydrophilicity of the unsaturated carboxylic acid copolymer is not reduced.
- the repeating unit (1) has a chemical structure represented by the general formula [23], and It is preferable that the unit (2) has the chemical structure represented by the general formula [24] or [25] because the raw materials are easily available and the production cost can be kept low. It is mentioned.
- a crosslinked product of an unsaturated carboxylic acid-based copolymer having a repeating unit (1) represented by the general formula [1] and a repeating unit (2) represented by the general formula [2] will be described.
- a crosslinked product obtained by reacting the unsaturated carboxylic acid-based copolymer with a water-soluble compound having two or more functional groups capable of reacting with a carboxyl group in one molecule can be used.
- Compounds having such a chemical structure include, for example, ethylene glycol diglycidinoleatene, glyceronoleto glycidinoleatene, polyethylene glycol diglycidinoleate ⁇ ⁇ ⁇ ⁇ ⁇ , dipropylene daricolate. ⁇ ⁇ / Diglycidinolate / diethylene glycol, triethylene glycol, polyethylene glycol, glycerin, polyglycerin, propylene glycol, ethylenediamine, butanediamine, diethanol Amine, triethanolamine, polyoxypropylene, polyvinyl alcohol, pentaerythritol, sonorebit, sonorebitan, gnore course, mannit, mannitan.
- a crosslinked product obtained by reacting a compound having two or more unsaturated groups in one molecule during the polymerization of the unsaturated carboxylic acid can also be used.
- examples of such a compound include N, N-methylenebisacrylamide, ethylene glycol dimethacrylate, polyethylene glycol diacrylate, and trimethylolpropane triacrylate.
- the unsaturated carboxylic acid copolymer and the crosslinked product thereof that can be decomposed by the method of the present invention are used as the repeating units constituting them, as represented by the general formulas (1) and (2).
- the functional group is represented by Oite Z 1 particularly in formula [2], for example, because it has the property of generating a radical by external secretase white rot fungus, and outside -secretase of the white rot fungus When brought into contact, decomposition progresses due to molecular cleavage caused by radical generation.
- the enzyme secreted outside the body is used as an unsaturated carboxylic acid copolymer or a crosslinked product thereof. Can be affected.
- extracorporeal enzymes obtained by separation from a culture solution of white rot fungi using an ion exchange resin or the like can be used.
- white rot fungus force s which may use a variety of white rot fungi, Fanerokite (P hanerochaete) genus Pureurota scan (PI eurotus) genus Trametes (T rametes) genus, Seri poly Opsys (C eriporiopsis Genus, genus Lentinula, genus Coriolus, genus B jerokandera and Pycnopora ( One or more white rot fungi selected from the white rot fungi belonging to the genus Pycnoporus) are preferably used.
- white rot fungi of the species Phanerochaetechrysosporium are particularly preferably used.
- a culture obtained by collecting from soil or decayed wood and then culturing using a commonly used medium such as a malt agar medium is preferably used.
- the culture temperature may be adjusted to 25 to 35 ° C.
- the pH of the culture solution may be adjusted to 4.5 to 5.5.
- This white-rot fungus is then decomposed by contact with an unsaturated carboxylic acid copolymer or its cross-linked product, which is subjected to disposal after use in various fields of application, using the exocrine enzymes of white-rot fungi.
- a method may be used in which a culture solution of white-rot fungi or a solution containing an exocrine enzyme of white-rot fungi is adhered to a molded article of an unsaturated rubonic acid copolymer or a cross-linked product thereof.
- a method of burying a molded article of an unsaturated carboxylic acid copolymer or a crosslinked product thereof in compost or soil in which rot fungi are present may be used.
- the weight average molecular weight of the unsaturated carboxylic acid copolymer obtained here was 82,000. From the result of 'H-NMR measurement (manufactured by JEOL Ltd .; GX-270 apparatus), it was confirmed that this unsaturated carboxylic acid copolymer was composed of the following repeating units. .
- a medium component consisting of the medium composition shown in Table 1 was dissolved in 100 milliliters of sodium tartrate buffer solution (100 milliliters), and the pH was adjusted. The culture solution adjusted to 4.5 was used.
- the culture was removed from the cells with a glass fiber filter and sterilized with an autoclave.
- the degradation rate of the unsaturated carboxylic acid copolymer was measured by freeze-drying the culture solution after filtration, adjusting the concentration, and measuring by the GPC method. The measurement results are shown in Table 2 and FIG.
- Example 1 was repeated except that polyacrylic acid was used in place of the unsaturated carboxylic acid copolymer used in Example 1 as the unsaturated carboxylic acid-based polymer.
- the results are shown in Table 2 and FIG.
- the reaction solution was adjusted to pH 7, and the product was purified by reprecipitation with acetone. Then, the obtained product was freeze-dried to obtain an unsaturated carboxylic acid copolymer.
- the weight average molecular weight of the unsaturated carboxylic acid copolymer obtained here was 361,000. From the measurement results of 1 H_NMR, it was confirmed that the unsaturated carboxylic acid copolymer was composed of the following repeating units.
- An unsaturated carboxylic acid copolymer was obtained in the same manner as in (1) of Example 1, except that the amount of P-aminophenol added was 0.61 g.
- the weight average molecular weight of the obtained unsaturated carboxylic acid copolymer was 80,000.
- the unsaturated carboxylic acid copolymer was composed of the following repeating units.
- the unsaturated carboxylic acid copolymer obtained in the above (1) was decomposed with manganese peroxidase in the same manner as in (2) of Example 2. The results are shown in Table 4.
- the product was purified by reprecipitation with acetone.
- the obtained product was freeze-dried to obtain an unsaturated carboxylic acid copolymer.
- the weight average molecular weight of the unsaturated carboxylic acid copolymer obtained here was 81,000. Also, from the measurement results of —NMR, it was confirmed that the unsaturated carboxylic acid copolymer was composed of the following repeating units.
- Example 2 was the same as Example 2 except that polyacrylic acid was used in place of the unsaturated carboxylic acid copolymer used in Example 1 as the unsaturated carboxylic acid-based polymer. The results are shown in Table 4.
- the weight average molecular weight of the obtained unsaturated carboxylic acid copolymer was 2,918,000. From the measurement results of —NMR, it was confirmed that this unsaturated carboxylic acid copolymer was composed of the following repeating units.
- thermocouple and reflux condenser capacity 1 0 0 millimeter Li Tsu DOO / Les Serra 0 trouble flask equipped, Atta Rinore acid 1 1. And 5 2 g, Akuro lay down 2. 2 4 g and 5.1 g of sodium hydroxide was added, and water was further added to adjust the concentration of the solute to 20% by mass, followed by stirring to make the solution uniform. Then, the flask was immersed in an oil bath maintained at 50 ° C, and after the temperature in the reaction system became constant, 2, 2, 1-azobis (2-amidinopropane) was used as a polymerization initiator. 1.62 g of dihydrochloride was added, and the polymerization reaction was performed for 3 hours.
- the reaction solution was purified by dialysis.
- the obtained product was freeze-dried to obtain an unsaturated carboxylic acid copolymer.
- the weight average molecular weight of the unsaturated carboxylic acid copolymer obtained here was 110,000. Also, 'H- from the measurement results of NMR, the content of structural units derived from ⁇ click port lay down of the unsaturated force carboxylic acid copolymer was confirmed 7. is 7 mole 0/0 .
- FIG. 3 shows the results of measuring the decomposition rate of this unsaturated carboxylic acid copolymer by the GPC method. The decomposition rate was 69%.
- an acrylic acid-acrylamide copolymer [manufactured by A1drich Co., Ltd .: content ratio of acrylic acid unit: 18.8 mol. /. Decomposition was carried out in the same manner as in (2) of Example 1, except that the weight average molecular weight was 1,268,000].
- FIG. 4 shows the measurement results of the decomposition rate of this unsaturated carboxylic acid copolymer by the GPC method.
- the decomposition rate was 18%.
- the unsaturated carboxylic acid copolymer can be decomposed without adversely affecting the natural environment.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02720556A EP1382671A4 (en) | 2001-04-25 | 2002-04-22 | PROCESS FOR DECOMPOSING COPOLYMER OF UNSATURATED CARBOXYLIC ACID |
KR10-2003-7013892A KR20040093369A (ko) | 2001-04-25 | 2002-04-22 | 불포화 카복실산계 공중합체의 분해 방법 |
US10/474,503 US20040110256A1 (en) | 2001-04-25 | 2002-04-22 | Method of decomposing unsaturated carboxylic acid copolymer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2001127609 | 2001-04-25 | ||
JP2001-127609 | 2001-04-25 | ||
JP2002009875 | 2002-01-18 | ||
JP2002-009875 | 2002-01-18 |
Publications (1)
Publication Number | Publication Date |
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WO2002088326A1 true WO2002088326A1 (fr) | 2002-11-07 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/003992 WO2002088326A1 (fr) | 2001-04-25 | 2002-04-22 | Procede de decomposition de copolymere d'acide carboxylique insature |
Country Status (3)
Country | Link |
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EP (1) | EP1382671A4 (ja) |
KR (1) | KR20040093369A (ja) |
WO (1) | WO2002088326A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114715856A (zh) * | 2022-04-06 | 2022-07-08 | 无锡日月水处理有限公司 | 一种废硫酸回收处置方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211646A (en) * | 1975-07-15 | 1977-01-28 | Kuraray Co Ltd | Method of treatment of waste water containing polyacryl acid ester res in |
JPH05237200A (ja) * | 1991-04-17 | 1993-09-17 | Nippon Shokubai Co Ltd | 微生物による親水性アクリル酸系ポリマーの分解方法 |
CA2092501A1 (en) * | 1992-04-03 | 1993-10-04 | Fusako Kawai | Method for biodegrading acrylic monomers and acrylic oligomers by microorganisms |
JP2001046052A (ja) * | 1999-08-02 | 2001-02-20 | Kurita Water Ind Ltd | 白色腐朽菌の培養方法ならびに難分解性物質の処理方法および処理剤 |
JP2001086980A (ja) * | 1999-09-20 | 2001-04-03 | Kobe Steel Ltd | 芳香族化合物及び/又はハロゲン化有機化合物の分解能に優れる糸状菌 |
JP2001213993A (ja) * | 2000-02-03 | 2001-08-07 | Idemitsu Petrochem Co Ltd | 不飽和カルボン酸共重合体の分解方法 |
-
2002
- 2002-04-22 EP EP02720556A patent/EP1382671A4/en not_active Withdrawn
- 2002-04-22 KR KR10-2003-7013892A patent/KR20040093369A/ko not_active Application Discontinuation
- 2002-04-22 WO PCT/JP2002/003992 patent/WO2002088326A1/ja not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211646A (en) * | 1975-07-15 | 1977-01-28 | Kuraray Co Ltd | Method of treatment of waste water containing polyacryl acid ester res in |
JPH05237200A (ja) * | 1991-04-17 | 1993-09-17 | Nippon Shokubai Co Ltd | 微生物による親水性アクリル酸系ポリマーの分解方法 |
CA2092501A1 (en) * | 1992-04-03 | 1993-10-04 | Fusako Kawai | Method for biodegrading acrylic monomers and acrylic oligomers by microorganisms |
JP2001046052A (ja) * | 1999-08-02 | 2001-02-20 | Kurita Water Ind Ltd | 白色腐朽菌の培養方法ならびに難分解性物質の処理方法および処理剤 |
JP2001086980A (ja) * | 1999-09-20 | 2001-04-03 | Kobe Steel Ltd | 芳香族化合物及び/又はハロゲン化有機化合物の分解能に優れる糸状菌 |
JP2001213993A (ja) * | 2000-02-03 | 2001-08-07 | Idemitsu Petrochem Co Ltd | 不飽和カルボン酸共重合体の分解方法 |
Non-Patent Citations (4)
Title |
---|
DEGUCHI T. ET AL: "Purification and characterization of a nylon-degrading enzyme", APPL. ENVIRON. MICROBIOL., vol. 64, no. 4, 1998, pages 1366 - 1371, XP002954461 * |
See also references of EP1382671A4 * |
SUTHERLAND G.R.J. ET AL: "Biodegradation of crosslinked acrylic polymers by a white-rot fungus", ENVIRON. SCI. & POLLUT. RES., vol. 4, no. 1, 1997, pages 16 - 20, XP002954459 * |
TOMOAKI NISHIDA: "Green-converting no shin jidai hakushoku fukyukin oyobi sono koso niyoru gosei kobunshi no bunkai", PAPER, FILM & FOIL, vol. 29, no. 2, February 2001 (2001-02-01), pages 8 - 12, XP002954460 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114715856A (zh) * | 2022-04-06 | 2022-07-08 | 无锡日月水处理有限公司 | 一种废硫酸回收处置方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20040093369A (ko) | 2004-11-05 |
EP1382671A1 (en) | 2004-01-21 |
EP1382671A4 (en) | 2004-11-17 |
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