JPS62273227A - アルキレンオキシドの重合方法 - Google Patents
アルキレンオキシドの重合方法Info
- Publication number
- JPS62273227A JPS62273227A JP62106516A JP10651687A JPS62273227A JP S62273227 A JPS62273227 A JP S62273227A JP 62106516 A JP62106516 A JP 62106516A JP 10651687 A JP10651687 A JP 10651687A JP S62273227 A JPS62273227 A JP S62273227A
- Authority
- JP
- Japan
- Prior art keywords
- chain transfer
- transfer agent
- catalyst
- polymerization
- oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006116 polymerization reaction Methods 0.000 title claims description 93
- 125000002947 alkylene group Chemical group 0.000 title description 16
- 239000003054 catalyst Substances 0.000 claims description 121
- 238000000034 method Methods 0.000 claims description 75
- 239000006185 dispersion Substances 0.000 claims description 58
- 239000000203 mixture Substances 0.000 claims description 57
- 239000012986 chain transfer agent Substances 0.000 claims description 54
- 239000011701 zinc Substances 0.000 claims description 45
- 229920000642 polymer Polymers 0.000 claims description 40
- 229910052725 zinc Inorganic materials 0.000 claims description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 30
- -1 alkane polyol Chemical class 0.000 claims description 30
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 21
- 229910021485 fumed silica Inorganic materials 0.000 claims description 21
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 20
- 229920005862 polyol Polymers 0.000 claims description 16
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 16
- 150000003752 zinc compounds Chemical class 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 125000004122 cyclic group Chemical group 0.000 claims description 15
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 230000003197 catalytic effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical group 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 125000001624 naphthyl group Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims 2
- IZSHZLKNFQAAKX-UHFFFAOYSA-N 5-cyclopenta-2,4-dien-1-ylcyclopenta-1,3-diene Chemical group C1=CC=CC1C1C=CC=C1 IZSHZLKNFQAAKX-UHFFFAOYSA-N 0.000 claims 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 82
- 238000006243 chemical reaction Methods 0.000 description 60
- 238000002474 experimental method Methods 0.000 description 36
- 238000007792 addition Methods 0.000 description 31
- 239000004094 surface-active agent Substances 0.000 description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- 239000000243 solution Substances 0.000 description 28
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- 238000012546 transfer Methods 0.000 description 17
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- 229910052757 nitrogen Inorganic materials 0.000 description 14
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- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
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- 239000003085 diluting agent Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
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- 238000002360 preparation method Methods 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
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- 238000001816 cooling Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000000376 reactant Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
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- 230000001276 controlling effect Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
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- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 150000004703 alkoxides Chemical class 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- IGFHQQFPSIBGKE-UHFFFAOYSA-N 4-nonylphenol Chemical compound CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229920006158 high molecular weight polymer Polymers 0.000 description 3
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- 230000000977 initiatory effect Effects 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000012429 reaction media Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000006276 transfer reaction Methods 0.000 description 3
- 229910002019 Aerosil® 380 Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 241001494479 Pecora Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- PDXRQENMIVHKPI-UHFFFAOYSA-N cyclohexane-1,1-diol Chemical compound OC1(O)CCCCC1 PDXRQENMIVHKPI-UHFFFAOYSA-N 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- MKRVHLWAVKJBFN-UHFFFAOYSA-N diphenylzinc Chemical compound C=1C=CC=CC=1[Zn]C1=CC=CC=C1 MKRVHLWAVKJBFN-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 230000006698 induction Effects 0.000 description 2
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- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 150000002924 oxiranes Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
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- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical compound OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 2
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- 150000003624 transition metals Chemical class 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- BYYXHWABFVUKLO-UHFFFAOYSA-N zinc;2-methylpropane Chemical compound [Zn+2].C[C-](C)C.C[C-](C)C BYYXHWABFVUKLO-UHFFFAOYSA-N 0.000 description 1
- YNPXMOHUBANPJB-UHFFFAOYSA-N zinc;butan-1-olate Chemical compound [Zn+2].CCCC[O-].CCCC[O-] YNPXMOHUBANPJB-UHFFFAOYSA-N 0.000 description 1
- AUGAZENISHMAIK-UHFFFAOYSA-N zinc;methylbenzene Chemical compound [Zn+2].CC1=CC=CC=[C-]1.CC1=CC=CC=[C-]1 AUGAZENISHMAIK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/269—Mixed catalyst systems, i.e. containing more than one reactive component or catalysts formed in-situ
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/08—Saturated oxiranes
- C08G65/10—Saturated oxiranes characterised by the catalysts used
- C08G65/12—Saturated oxiranes characterised by the catalysts used containing organo-metallic compounds or metal hydrides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/858,914 US4667013A (en) | 1986-05-02 | 1986-05-02 | Process for alkylene oxide polymerization |
| US858914 | 1986-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62273227A true JPS62273227A (ja) | 1987-11-27 |
| JPH0474370B2 JPH0474370B2 (enExample) | 1992-11-26 |
Family
ID=25329489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62106516A Granted JPS62273227A (ja) | 1986-05-02 | 1987-05-01 | アルキレンオキシドの重合方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4667013A (enExample) |
| EP (1) | EP0243969A3 (enExample) |
| JP (1) | JPS62273227A (enExample) |
| AU (1) | AU7227387A (enExample) |
| BR (1) | BR8702151A (enExample) |
| CA (1) | CA1279435C (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6084059A (en) * | 1998-04-03 | 2000-07-04 | Nippon Shokubai Co., Ltd. | Production process for organometallic fine particle and catalyst for polymerization |
| US12116454B2 (en) | 2021-09-15 | 2024-10-15 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing polyalkylene oxide and polyalkylene oxide |
| US12195589B2 (en) | 2021-09-15 | 2025-01-14 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing polyalkylene oxide |
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| AU5731000A (en) * | 1999-06-11 | 2001-01-02 | Procter & Gamble Company, The | Soluble polyfunctional initiators for lactone ring-opening polymerization |
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| JP5059279B2 (ja) | 2000-09-12 | 2012-10-24 | ユニオン カーバイド ケミカルズ アンド プラスティックス テクノロジー エルエルシー | アルキレンオキシドコポリマーを含むポリマー複合材 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385800A (en) * | 1958-11-24 | 1968-05-28 | Gen Tire & Rubber Co | Polymerization of alkylene oxides by a catalyst system comprising organometallic compounds in combination with an oxygen-containing cocatalyst |
| GB980615A (en) * | 1961-03-14 | 1965-01-13 | Takeda Chemical Industries Ltd | A catalytic method for preparing alkyleneoxide polymers |
| US3639267A (en) * | 1969-12-19 | 1972-02-01 | Hercules Inc | Organozinc catalyst composition |
| JPS5035538B2 (enExample) * | 1972-06-29 | 1975-11-17 | ||
| JPS5831055B2 (ja) * | 1976-08-26 | 1983-07-04 | 松下電器産業株式会社 | テレビジヨン受像機のプログラム制御装置 |
-
1986
- 1986-05-02 US US06/858,914 patent/US4667013A/en not_active Expired - Fee Related
-
1987
- 1987-04-24 CA CA000535504A patent/CA1279435C/en not_active Expired - Lifetime
- 1987-04-30 EP EP87106293A patent/EP0243969A3/en not_active Withdrawn
- 1987-04-30 BR BR8702151A patent/BR8702151A/pt unknown
- 1987-04-30 AU AU72273/87A patent/AU7227387A/en not_active Abandoned
- 1987-05-01 JP JP62106516A patent/JPS62273227A/ja active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6084059A (en) * | 1998-04-03 | 2000-07-04 | Nippon Shokubai Co., Ltd. | Production process for organometallic fine particle and catalyst for polymerization |
| US12116454B2 (en) | 2021-09-15 | 2024-10-15 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing polyalkylene oxide and polyalkylene oxide |
| US12195589B2 (en) | 2021-09-15 | 2025-01-14 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing polyalkylene oxide |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0243969A3 (en) | 1988-10-05 |
| CA1279435C (en) | 1991-01-22 |
| AU7227387A (en) | 1987-11-05 |
| JPH0474370B2 (enExample) | 1992-11-26 |
| EP0243969A2 (en) | 1987-11-04 |
| US4667013A (en) | 1987-05-19 |
| BR8702151A (pt) | 1988-02-09 |
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