WO2004033535A1 - ポリアリーレンスルフィド系樹脂の製造方法 - Google Patents
ポリアリーレンスルフィド系樹脂の製造方法 Download PDFInfo
- Publication number
- WO2004033535A1 WO2004033535A1 PCT/JP2003/012667 JP0312667W WO2004033535A1 WO 2004033535 A1 WO2004033535 A1 WO 2004033535A1 JP 0312667 W JP0312667 W JP 0312667W WO 2004033535 A1 WO2004033535 A1 WO 2004033535A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- washing
- polyarylene sulfide
- based resin
- water
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F228/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur
- C08F228/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur by a bond to sulfur
- C08F228/04—Thioethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/0204—Polyarylenethioethers
- C08G75/0209—Polyarylenethioethers derived from monomers containing one aromatic ring
- C08G75/0213—Polyarylenethioethers derived from monomers containing one aromatic ring containing elements other than carbon, hydrogen or sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/0204—Polyarylenethioethers
- C08G75/025—Preparatory processes
- C08G75/0254—Preparatory processes using metal sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/0204—Polyarylenethioethers
- C08G75/0277—Post-polymerisation treatment
- C08G75/0281—Recovery or purification
Definitions
- the present invention relates to a method for producing a polyarylene sulfide-based resin, and more particularly, to recovering a part of the resin dissolved in the solvent when washing the polyarylene sulfide-based resin produced by polymerization with a solvent.
- the present invention relates to a method for producing a polyarylene sulfide-based resin that improves the resin yield by utilizing the resin.
- Polyarylene sulfide-based resins (hereafter referred to as “PAS-based resins”), especially polyphenylene sulfide (hereinafter sometimes referred to as “PPS-based resins”) resins have mechanical strength and heat resistance. It is known as an engineering plastic with excellent electrical properties, high flame resistance, excellent resistance to solvents, good electrical properties, and high rigidity, and is widely used as a material for electronic and electrical equipment parts. Used.
- a dihalogenated aromatic compound such as p-dichlorobenzene in a non-protonic organic solvent such as N-methyl-2-pyrrolidone (hereinafter sometimes referred to as “NMP”) has conventionally been used.
- NMP N-methyl-2-pyrrolidone
- a method of reacting a sodium salt such as sodium sulfide with sodium has been used.
- sodium halide is produced as a by-product, and since this sodium halide is insoluble in solvents such as NMP, it is taken into the resin.
- the PAS resin is washed with a large amount of water.
- sodium halide in the PAS-based resin could not be sufficiently removed.
- Lithium halide by-produced during polymerization is soluble in many non-protonic organic solvents (solvents for polymerization) such as NMP, so it is possible to relatively easily reduce the lithium concentration in the resin. It becomes.
- solvents for polymerization solvents for polymerization
- a softened or molten polyylene sulfide resin is mixed with a solvent such as a mixed solvent of organic amide water.
- a washing method has been proposed (see, for example, Japanese Patent Application Laid-Open Nos. 61-22023 and 7-270720).
- these cleaning methods can effectively remove metal halides, but a part of the polyarylene sulfide resin dissolves in the liquid phase together with the metal halides. There was a problem that the yield of the obtained polyarylene sulfide resin was reduced.
- the present inventors have proposed a method of using a solvent saturated with a PAS-based resin as a washing solution (see Japanese Patent Application Laid-Open No. 2000-27314). .
- this method is applied to an actual manufacturing process, there are problems in that it is difficult to control the flow rate of the cleaning liquid in the cleaning process and that the piping of the manufacturing apparatus becomes complicated.
- the mouth of the PAS-based resin is reduced, there is a problem that a part of the PAS-based resin dissolves in the washing solution and is lost together with the washing solution, so that a satisfactory yield cannot always be obtained. Disclosure of the invention
- the present invention has been made in view of the above problems, and has been made in consideration of the problems caused by It is an object of the present invention to provide a method for producing a polyarylene sulfide-based resin that hardly causes loss of the resin when washing the resin with a solvent.
- the inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that, by cooling the washing liquid that has washed the polyarylene sulfide-based resin and adding water to the z or washing liquid, the dissolved polymer is dissolved.
- the present inventors have found that an arylene sulfide resin can be separated and recovered, and have completed the present invention based on such findings.
- the present invention provides the following.
- the polyarylene sulfide-based resin recovered by the method (2) is added to another polyarylene sulfide-based resin to be newly washed, and the non-protonic organic solvent is softened or melted.
- FIG. 1 is a flow chart showing a continuous process of polymerization and washing to which the present invention is applied.
- PAS-based resin polyarylene sulfide-based resin
- PAS-based resin there is no particular limitation on the PAS-based resin to which the production method of the present invention can be applied.
- PAS resins are generally known to have a substantially linear molecular structure without a branched or cross-linked structure and a structure having a branched or cross-linked structure depending on the production method. It is also valid for types.
- the path Raa Lee sulfide unit 7 0 mole 0/0 or more repeating units more preferably include homopolymers or copolymers containing 8 0 mode or Le%.
- copolymerized structural units examples include metaphenylene sulfide units, orthophenylene sulfide units,, p'-diphenylene ketones / refide units,, p 'diphenylene phenol / reduct units,, p '— Biphenylene sulfide units,, p' diphenylene ether sulfide units,, p 'diphenylene methylene sulfide units, p, p' diphenylene methyl sulfide units, naphthyl sulfide units, etc. Is mentioned.
- the polyarylene sulfide of the present invention includes, in addition to the above-mentioned substantially linear polymer, a branched or cross-linked polyarylene polymer obtained by mixing and using a small amount of a monomer having three or more functional groups as a part of the monomer. Luffy, A blended polymer obtained by blending this with the linear polymer can also be applied to the production method of the present invention.
- a PAS resin to which the production method of the present invention can be applied can be obtained by reacting a dihalogenated aromatic compound with a metal sulfide in a polar organic solvent.
- dihalogenated aromatic compounds used in the production of this PAS-based resin include dihalogenbenzenes such as m-dihachibenzene and p-dihachibenzene; 2,3-dihalotoluene, 2,5-dihalobenzene.
- a metal sulfide represented by an alkali metal compound such as sodium sulfide, lithium sulfide, and potassium sulfide can be mainly used. These may be used alone or in combination of two or more. Also, alkaline earth metal sulfides and other sulfur sources can be used in combination.
- the nonprotonic organic solvent used in the present invention generally includes nonprotonic polar organic compounds (for example, amide compounds, ratatum compounds, urea compounds, organic compounds, cyclic organic phosphorus compounds, etc.). , As a sole solvent Alternatively, it can be suitably used as a mixed solvent.
- nonprotonic polar organic compounds for example, amide compounds, ratatum compounds, urea compounds, organic compounds, cyclic organic phosphorus compounds, etc.
- the amide compounds include, for example, N, N-dimethylformamide, N, N-getylformamide, N, N-dimethylacetamide, Examples include N, N-getyl acetate amide, N, N-dipropyl acetate amide, N, N-dimethylbenzoate amide and the like.
- ratatam compounds include, for example, force prolatatam, N-methylcaprolatatam, N-ethylcaprolatatam, N-isopropyl force prolactam, N-isobutylcaprolatatam, N-normal propyl force prolatatam, Nonolemanolebutylcaprolatatam, N-alkylprolatatams such as N-cyclohexynoleprolactam, N-methyl-2-piridone (NMP), N-ethyl-2-pyrrolidone, N-isopropylone 2-pyrrolidone, N-isobutynole-2-pyrrolidone, N-n-propido / 2-pyrrolidone, N-nonoremanolebutyl-2-pyrrolidone, N-cyclohexyl-2-pyrrolidone Don, N-methyl-1-methyl-2-pyrrolidone, N-ethyl-3-methyl-2
- urea compound examples include tetramethyl urea, N, N'-dimethylethylene urea, N, N, -dimethyl propylene urea and the like.
- examples of the organic compound include dimethyl sulfoxide, getinolenorethoxide, diphenorelesnorefone, 1-methynole-1-oxosulfolane, 1-ethynole 1-oxosnorreholane, and 1-phenyl One in one
- the cyclic organophosphorus compound for example, 1-methyl-11-oxophosphorane, 1-normalpropyl-11-oxophosphorane, 1-phenyl-2-oxophosphorane, etc. be able to.
- non-protonic polar organic compounds may be used alone or in combination of two or more, and further mixed with other solvent components which do not interfere with the object of the present invention. It can be used as an organic solvent.
- organic solvent preferred are N-alkylcaprolatatam and N-alkylpyrrolidone, and particularly preferred is N-methinolay 2-pyrrolidone.
- the non-protonic organic solvent in order to control the solubility of the PAS-based resin, it is necessary to add a certain ratio of water together with the non-protonic organic solvent as a washing solvent.
- the water used by mixing with the non-protonic organic solvent is not particularly limited, but distilled water is preferred.
- the mixing ratio of the non-protonic organic solvent to water is preferably 5545 to 95Z5 in terms of mass ratio (nonprotonic organic solvent / water), and particularly preferably 6553 to 90/10.
- 70Z30 to 85Z15 is more preferable.
- the mixing ratio of water exceeds 45% by mass, the PAS-based resin is unlikely to be softened or melted, and the PAS-based resin may be solidified. If the mixing ratio of water is less than 5% by mass, the PAS-based resin is completely dissolved to form a uniform solution, so that washing cannot be performed.
- the concentration of the PAS-based resin at the time of washing is preferably 10 to 400 g, particularly preferably 50 to 300 g, for 1 liter of the non-protonic organic solvent and the PAS-based resin to be washed. And more preferably 100 to 250 g.
- the amount of PAS resin during washing exceeds 400 g, the washing efficiency tends to decrease If the weight is less than 10 g, the economy is inferior.
- the washing temperature is preferably 220 to 300 ° C, particularly preferably 230 to 270 ° C, and more preferably 240 to 260 ° C. If the washing temperature exceeds 300 ° C, the PAS resin will decompose, and if it is lower than 220 ° C, the PAS resin will not soften or melt.
- the washing liquid is cooled, and / or water is added to precipitate and recover the dissolved PAS resin from the washing liquid.
- the cooling is not particularly limited as long as the temperature at which the dissolved PAS-based resin forms a precipitate, but is generally preferably 200 ° C or lower, more preferably 150 ° C or lower, It is particularly preferable that the temperature be 100 ° C. or lower.
- the amount of water added may be such that the dissolved PAS-based resin forms a precipitate.
- the composition after adding water is N-methyl-2-pyrrolidone (NMP ) Is preferably added in an amount of more than 50% by mass, more preferably in an amount of more than 80% by mass.
- NMP N-methyl-2-pyrrolidone
- the washing solution in which the PAS-based resin is dissolved is concentrated by performing an operation such as distillation in advance.
- a method of separating and recovering the PAS-based resin precipitated in this way means conventionally used for solid-liquid separation such as centrifugal separation, filtration, and stationary separation can be used.
- the separated PAS-based resin may be added to the PAS-based resin to be subjected to the next washing in a wet state, or may be washed and dried to be recovered as a powdered solid PAS resin, which is then used as the PAS-based product. It can also be mixed with a system resin.
- a process as shown in FIG. 1 in which polymerization and washing of a PAS-based resin are repeated a plurality of times can be employed.
- a mixed solvent of non-protonic organic solvent and water (1st washing system), and a part of the PAS resin dissolved in this washing solution is precipitated and recovered (Polymer 2), and can be a continuous process to be directly recycled to the melt washing system (Case 1).
- a process may be used in which the polymer 2 is purified, dried, and then mixed with the polymer 1 obtained through a washing treatment (Case 2).
- an aqueous ammonium chloride solution (2.33 g of ammonium chloride, 28.7 g of water) and 28.7 g of N-methyl-1-pyrrolidone (NMP) are added, and the mixture is stirred at 260 ° C for 10 minutes. Then, after stirring was stopped and 10 minutes had elapsed, the liquid phase was extracted from the inner pipe. Next, a mixed solvent of NMP and water (NMP: 236 ml, water: 33.6 g) was added to the autoclave, and the autoclave was heated again. After stirring for 10 minutes, the stirring was stopped, and after 10 minutes had elapsed, the liquid phase was extracted from the inner pipe. Similarly, this washing operation was repeated four times.
- the total amount of the cleaning liquid extracted from the inner pipe in four cleaning operations was collected, and as a result, the total was 138 g.
- This washing solution was cooled to 50 ° C. to precipitate polyphenylene sulfide resin.
- the precipitate was then centrifuged in a centrifuge to obtain 57.5 g of a wet polyphenylene sulfide resin. Since the liquid content was 80%, the recovered polyphenylene sulfide resin had a dry mass of 1.176 g.
- the polymerization of benzene at the mouth of the mouth and the subsequent washing operation were performed in the same manner as in the comparative example, and a total of 138 g of the washing liquid extracted from the inner pipe was collected by four washing operations.
- the recovered washing liquid was subjected to distillation under reduced pressure to remove 920 g of a fraction mainly composed of water and NMP. Cool the distillation residue to below 100 ° C, add 180 g of water and add polyphenylene sulfite. The resin was precipitated. The amount of water added at this time was equivalent to 82% with respect to NMP. Then, the precipitate was centrifuged in a centrifuge to obtain 96.5 g of a wet polyphenylene sulfide resin. Since the liquid content was 80 ° / 0 , the recovered polyphenylene sulfide resin had a dry mass of 19.3 g.
- the polymerization reaction of benzene with a paradiclochloride and a washing operation were carried out in the same manner as in Example 2, and 1,380 g of the collected washing solution was subjected to distillation under reduced pressure to remove 920 g of a fraction mainly composed of water and NMP.
- the distillation residue was cooled to below 100 ° C. and 1840 g of water was added to precipitate the polyphenylene sulfide resin.
- the amount of water added at this time was equivalent to 82 ° / 0 with respect to NMP.
- the precipitate was centrifuged in a centrifuge to obtain 96.5 g of a wet polyphenylene sulfide resin.
- the recovered polyphenylene sulfide resin had a dry mass of 19.3 g. This was washed twice with 1840 g of hot water at 80 ° C. and then dried at 120 ° C. to obtain 17.8 g of a polyphenylene sulfide resin. Residues in this polyphenylene sulfide resin The amount of distillate was less than 10 ppm.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/530,027 US7317072B2 (en) | 2002-10-10 | 2003-10-02 | Process for the production of polyarylene sulfide resins |
EP03748681A EP1550685A4 (en) | 2002-10-10 | 2003-10-02 | METHOD FOR PRODUCING POLYARYLENE SULFIDE RESINS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002297656A JP2004131602A (ja) | 2002-10-10 | 2002-10-10 | ポリアリーレンスルフィド系樹脂の製造方法 |
JP2002-297656 | 2002-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004033535A1 true WO2004033535A1 (ja) | 2004-04-22 |
Family
ID=32089279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012667 WO2004033535A1 (ja) | 2002-10-10 | 2003-10-02 | ポリアリーレンスルフィド系樹脂の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7317072B2 (ja) |
EP (1) | EP1550685A4 (ja) |
JP (1) | JP2004131602A (ja) |
CN (1) | CN1300220C (ja) |
TW (1) | TW200413443A (ja) |
WO (1) | WO2004033535A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4777610B2 (ja) | 2003-12-26 | 2011-09-21 | 株式会社クレハ | ポリアリーレンスルフィド及びその製造方法 |
CN103289093A (zh) * | 2013-07-01 | 2013-09-11 | 四川宝利丰科技有限公司 | 制备线性高分子量聚苯硫醚的方法 |
JP6684206B2 (ja) | 2013-09-25 | 2020-04-22 | ティコナ・エルエルシー | ポリアリーレンスルフィドの形成中における塩副生成物の分離 |
WO2015047718A1 (en) | 2013-09-25 | 2015-04-02 | Ticona Llc | Multi-stage process for forming polyarylene sulfides |
WO2015047717A1 (en) | 2013-09-25 | 2015-04-02 | Ticona Llc | Method and system for separation of a polymer from multiple compounds |
JP2016536377A (ja) | 2013-09-25 | 2016-11-24 | ティコナ・エルエルシー | ポリアリーレンスルフィドを形成するためのスクラビングプロセス |
US9562139B2 (en) | 2013-09-25 | 2017-02-07 | Ticona Llc | Process for forming low halogen content polyarylene sulfides |
US9388283B2 (en) | 2013-09-25 | 2016-07-12 | Ticona Llc | Method of polyarylene sulfide crystallization |
JP6803844B2 (ja) | 2015-02-19 | 2020-12-23 | ティコナ・エルエルシー | 低粘度のポリアリーレンスルフィドを形成する方法 |
WO2016133739A1 (en) | 2015-02-19 | 2016-08-25 | Ticona Llc | Method for forming a high molecular weight polyarylene sulfide |
WO2016133740A1 (en) | 2015-02-19 | 2016-08-25 | Ticona Llc | Method of polyarylene sulfide precipitation |
WO2016153610A1 (en) | 2015-03-25 | 2016-09-29 | Ticona Llc | Technique for forming a high melt viscosity polyarylene sulfide |
CN106699688A (zh) * | 2016-12-08 | 2017-05-24 | 斯芬克司药物研发(天津)股份有限公司 | 一种苯基哌嗪硫醚及其制备方法 |
US11407861B2 (en) | 2019-06-28 | 2022-08-09 | Ticona Llc | Method for forming a polyarylene sulfide |
JP2023508316A (ja) | 2019-12-20 | 2023-03-02 | ティコナ・エルエルシー | ポリアリーレンスルフィドを形成するための方法 |
WO2023002877A1 (ja) * | 2021-07-19 | 2023-01-26 | 東レ株式会社 | ポリアリーレンスルフィドの分離方法およびポリアリーレンスルフィド樹脂組成物の製造方法 |
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JPS61228023A (ja) * | 1985-04-01 | 1986-10-11 | Kureha Chem Ind Co Ltd | ポリアリ−レンスルフィドの精製法 |
US4748231A (en) * | 1986-11-21 | 1988-05-31 | Phillips Petroleum Company | Reprecipitation of poly(arylene sulfide) to increase molecular weight thereof |
JPH0543690A (ja) * | 1991-08-14 | 1993-02-23 | Tosoh Corp | ポリアリーレンスルフイドの精製方法 |
JPH05186593A (ja) * | 1991-06-24 | 1993-07-27 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの調製方法 |
JPH06192424A (ja) * | 1992-10-23 | 1994-07-12 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの精製方法 |
JPH06192423A (ja) * | 1992-10-23 | 1994-07-12 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの精製方法 |
JPH10507223A (ja) * | 1994-10-13 | 1998-07-14 | ヘキスト・アクチェンゲゼルシャフト | ポリアリーレンスルフィドの再循環方法 |
JP2002533546A (ja) * | 1998-12-31 | 2002-10-08 | フイリツプス ピトローリアム カンパニー | ポリ(アリーレンスルフィド)を製造する方法 |
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US3707528A (en) * | 1971-01-12 | 1972-12-26 | Phillips Petroleum Co | Recovery of poly(arylene sulfide) reaction slurry constituents |
US5247063A (en) * | 1987-04-24 | 1993-09-21 | Bayer Aktiengesellschaft | Process for the purification of polyarylene sulphides |
US5898061A (en) * | 1996-03-11 | 1999-04-27 | Idemitsu Petrochemical Co., Ltd. | Continuous process for producing polyarylene sulfide |
-
2002
- 2002-10-10 JP JP2002297656A patent/JP2004131602A/ja active Pending
-
2003
- 2003-10-02 US US10/530,027 patent/US7317072B2/en not_active Expired - Fee Related
- 2003-10-02 WO PCT/JP2003/012667 patent/WO2004033535A1/ja active Application Filing
- 2003-10-02 EP EP03748681A patent/EP1550685A4/en not_active Withdrawn
- 2003-10-02 CN CNB2003801012896A patent/CN1300220C/zh not_active Expired - Fee Related
- 2003-10-08 TW TW092127979A patent/TW200413443A/zh unknown
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JPS61228023A (ja) * | 1985-04-01 | 1986-10-11 | Kureha Chem Ind Co Ltd | ポリアリ−レンスルフィドの精製法 |
US4748231A (en) * | 1986-11-21 | 1988-05-31 | Phillips Petroleum Company | Reprecipitation of poly(arylene sulfide) to increase molecular weight thereof |
JPH05186593A (ja) * | 1991-06-24 | 1993-07-27 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの調製方法 |
JPH0543690A (ja) * | 1991-08-14 | 1993-02-23 | Tosoh Corp | ポリアリーレンスルフイドの精製方法 |
JPH06192424A (ja) * | 1992-10-23 | 1994-07-12 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの精製方法 |
JPH06192423A (ja) * | 1992-10-23 | 1994-07-12 | Phillips Petroleum Co | ポリ(アリーレンスルフィド)ポリマーの精製方法 |
JPH10507223A (ja) * | 1994-10-13 | 1998-07-14 | ヘキスト・アクチェンゲゼルシャフト | ポリアリーレンスルフィドの再循環方法 |
JP2002533546A (ja) * | 1998-12-31 | 2002-10-08 | フイリツプス ピトローリアム カンパニー | ポリ(アリーレンスルフィド)を製造する方法 |
Non-Patent Citations (1)
Title |
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See also references of EP1550685A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN1703446A (zh) | 2005-11-30 |
JP2004131602A (ja) | 2004-04-30 |
US20060128819A1 (en) | 2006-06-15 |
CN1300220C (zh) | 2007-02-14 |
US7317072B2 (en) | 2008-01-08 |
TW200413443A (en) | 2004-08-01 |
EP1550685A1 (en) | 2005-07-06 |
EP1550685A4 (en) | 2006-01-18 |
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