NO311693B1 - Fremgangsmåte for oksidasjon av tetrafluoretylen, peroksidiske polymerer fremstilt ved fremgangsmåten og anvendelseav polymerene - Google Patents
Fremgangsmåte for oksidasjon av tetrafluoretylen, peroksidiske polymerer fremstilt ved fremgangsmåten og anvendelseav polymerene Download PDFInfo
- Publication number
- NO311693B1 NO311693B1 NO19970668A NO970668A NO311693B1 NO 311693 B1 NO311693 B1 NO 311693B1 NO 19970668 A NO19970668 A NO 19970668A NO 970668 A NO970668 A NO 970668A NO 311693 B1 NO311693 B1 NO 311693B1
- Authority
- NO
- Norway
- Prior art keywords
- cf2h
- cof2
- peroxidic
- solvent
- polymer
- Prior art date
Links
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 title claims description 42
- 229920000642 polymer Polymers 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 39
- 238000007254 oxidation reaction Methods 0.000 title claims description 11
- 230000003647 oxidation Effects 0.000 title claims description 9
- 230000008569 process Effects 0.000 title claims description 9
- 101100328843 Dictyostelium discoideum cofB gene Proteins 0.000 claims description 34
- IYRWEQXVUNLMAY-UHFFFAOYSA-N carbonyl fluoride Chemical compound FC(F)=O IYRWEQXVUNLMAY-UHFFFAOYSA-N 0.000 claims description 34
- 239000002904 solvent Substances 0.000 claims description 33
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000003999 initiator Substances 0.000 claims description 20
- 239000010702 perfluoropolyether Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 15
- 230000005855 radiation Effects 0.000 claims description 14
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- 239000011737 fluorine Substances 0.000 claims description 11
- 239000006227 byproduct Substances 0.000 claims description 10
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 10
- 239000007791 liquid phase Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 238000006722 reduction reaction Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- -1 alkyl hypofluorites Chemical class 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 229910052736 halogen Chemical group 0.000 claims description 3
- 150000002367 halogens Chemical group 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- OKIYQFLILPKULA-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane Chemical compound COC(F)(F)C(F)(F)C(F)(F)C(F)(F)F OKIYQFLILPKULA-UHFFFAOYSA-N 0.000 claims description 2
- NOPJRYAFUXTDLX-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane Chemical compound COC(F)(F)C(F)(F)C(F)(F)F NOPJRYAFUXTDLX-UHFFFAOYSA-N 0.000 claims description 2
- RKIMETXDACNTIE-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6-dodecafluorocyclohexane Chemical compound FC1(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)F RKIMETXDACNTIE-UHFFFAOYSA-N 0.000 claims description 2
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 claims description 2
- DDMOUSALMHHKOS-UHFFFAOYSA-N 1,2-dichloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)(Cl)C(F)(F)Cl DDMOUSALMHHKOS-UHFFFAOYSA-N 0.000 claims description 2
- DFUYAWQUODQGFF-UHFFFAOYSA-N 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane Chemical compound CCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F DFUYAWQUODQGFF-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001774 Perfluoroether Polymers 0.000 claims description 2
- 150000001734 carboxylic acid salts Chemical class 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000006114 decarboxylation reaction Methods 0.000 claims description 2
- 125000004786 difluoromethoxy group Chemical group [H]C(F)(F)O* 0.000 claims description 2
- 238000003682 fluorination reaction Methods 0.000 claims description 2
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000852 hydrogen donor Substances 0.000 claims description 2
- GVGCUCJTUSOZKP-UHFFFAOYSA-N nitrogen trifluoride Chemical class FN(F)F GVGCUCJTUSOZKP-UHFFFAOYSA-N 0.000 claims description 2
- BCCOBQSFUDVTJQ-UHFFFAOYSA-N octafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(F)C1(F)F BCCOBQSFUDVTJQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000019407 octafluorocyclobutane Nutrition 0.000 claims description 2
- QYSGYZVSCZSLHT-UHFFFAOYSA-N octafluoropropane Chemical compound FC(F)(F)C(F)(F)C(F)(F)F QYSGYZVSCZSLHT-UHFFFAOYSA-N 0.000 claims description 2
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical class FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 claims description 2
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 2
- 229960004065 perflutren Drugs 0.000 claims description 2
- 150000003254 radicals Chemical group 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- RFCAUADVODFSLZ-UHFFFAOYSA-N 1-Chloro-1,1,2,2,2-pentafluoroethane Chemical compound FC(F)(F)C(F)(F)Cl RFCAUADVODFSLZ-UHFFFAOYSA-N 0.000 claims 1
- 239000004340 Chloropentafluoroethane Substances 0.000 claims 1
- 235000019406 chloropentafluoroethane Nutrition 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 9
- 230000035484 reaction time Effects 0.000 description 8
- 238000004587 chromatography analysis Methods 0.000 description 6
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 6
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 6
- 150000002978 peroxides Chemical class 0.000 description 6
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- WMIYKQLTONQJES-UHFFFAOYSA-N hexafluoroethane Chemical compound FC(F)(F)C(F)(F)F WMIYKQLTONQJES-UHFFFAOYSA-N 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007539 photo-oxidation reaction Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical class FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000002081 peroxide group Chemical group 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004260 weight control Methods 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
- C08G65/04—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
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
-
- 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
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
-
- 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
-
- 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
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
- C08G65/223—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring containing halogens
- C08G65/226—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring containing halogens containing fluorine
-
- 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
- C08G65/32—Polymers modified by chemical after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polyethers (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Hinges (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96MI000279A IT1282627B1 (it) | 1996-02-14 | 1996-02-14 | Procedimento per la preparazione di perfluoropoliossialchileni perossidici |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO970668D0 NO970668D0 (no) | 1997-02-13 |
| NO970668L NO970668L (no) | 1997-08-15 |
| NO311693B1 true NO311693B1 (no) | 2002-01-07 |
Family
ID=11373268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19970668A NO311693B1 (no) | 1996-02-14 | 1997-02-13 | Fremgangsmåte for oksidasjon av tetrafluoretylen, peroksidiske polymerer fremstilt ved fremgangsmåten og anvendelseav polymerene |
Country Status (28)
| Country | Link |
|---|---|
| US (1) | US5744651A (zh) |
| EP (1) | EP0790269B1 (zh) |
| JP (1) | JP3862339B2 (zh) |
| KR (1) | KR100486125B1 (zh) |
| CN (1) | CN1080276C (zh) |
| AR (1) | AR005793A1 (zh) |
| AT (1) | ATE194850T1 (zh) |
| AU (1) | AU715369B2 (zh) |
| BG (1) | BG62394B1 (zh) |
| BR (1) | BR9700958A (zh) |
| CA (1) | CA2197538C (zh) |
| CZ (1) | CZ293428B6 (zh) |
| DE (1) | DE69702550T2 (zh) |
| ES (1) | ES2150155T3 (zh) |
| HR (1) | HRP970079B1 (zh) |
| HU (1) | HU220709B1 (zh) |
| IL (1) | IL120220A (zh) |
| IN (1) | IN190368B (zh) |
| IT (1) | IT1282627B1 (zh) |
| NO (1) | NO311693B1 (zh) |
| NZ (1) | NZ314218A (zh) |
| PE (1) | PE6598A1 (zh) |
| PL (1) | PL318452A1 (zh) |
| RO (1) | RO116894B1 (zh) |
| RU (1) | RU2194725C2 (zh) |
| TW (1) | TW442497B (zh) |
| UY (1) | UY24459A1 (zh) |
| ZA (1) | ZA971176B (zh) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20011340A1 (it) * | 2001-06-26 | 2002-12-26 | Ausimont Spa | Pfpe aventi almeno un terminale alchiletereo e relativo processo dipreparazione |
| ITMI20030372A1 (it) | 2003-03-03 | 2004-09-04 | Solvay Solexis Spa | Perfluoropolieteri lineari aventi migliorata stabilita' termoossidativa. |
| ITMI20031915A1 (it) * | 2003-10-03 | 2005-04-04 | Solvay Solexis Spa | Processo per la preparazione di perfluoropolieteri. |
| ITMI20062306A1 (it) * | 2006-11-30 | 2008-06-01 | Solvay Solexis Spa | Lubrificanti fluorurati |
| ITMI20062308A1 (it) * | 2006-11-30 | 2008-06-01 | Solvay Solexis Spa | Additivi per alo-polimeri |
| JP5258779B2 (ja) * | 2006-11-30 | 2013-08-07 | ソルヴェイ・スペシャルティ・ポリマーズ・イタリー・エッセ・ピ・ア | フッ素化潤滑剤 |
| EP1980583A1 (en) * | 2007-04-10 | 2008-10-15 | Solvay Solexis S.p.A. | A method for preparing carbonylic perfluoropolyethers |
| EP2176162B1 (en) * | 2007-08-07 | 2018-02-28 | Solvay Specialty Polymers Italy S.p.A. | Modification of carbonaceous materials |
| EP2100909A1 (en) * | 2008-03-14 | 2009-09-16 | Solvay Solexis S.p.A. | (Per)fluorinated addition products |
| US8536269B2 (en) * | 2008-08-15 | 2013-09-17 | Nova-Duct Technologies Pty Ltd | Peroxidic fluoropolyether and its use in emulsion polymerization of fluorin-containing monomer |
| EP2373720B1 (en) | 2008-12-05 | 2012-11-07 | Solvay Specialty Polymers Italy S.p.A. | Polyfunctional (per)fluoropolyethers |
| US20150321984A1 (en) * | 2011-12-22 | 2015-11-12 | Solvay Specialty Polymers Italy S.P.A. | Process for the manufacture of (per) fluoropolyethers with aromatic end groups |
| CN103724559B (zh) * | 2013-12-17 | 2016-08-17 | 中昊晨光化工研究院有限公司 | 一种由全氟聚醚过氧化物合成全氟聚醚的方法 |
| JP2017105945A (ja) * | 2015-12-10 | 2017-06-15 | ダイキン工業株式会社 | 過酸化パーフルオロポリオキシアルキレン化合物の製造方法 |
| CN108440748B (zh) * | 2018-04-09 | 2020-06-16 | 浙江巨化技术中心有限公司 | 一种高分子量带有酰氟基团全氟聚醚过氧化物的合成方法 |
| KR102240973B1 (ko) * | 2019-06-13 | 2021-04-15 | 한국화학연구원 | 과산화 퍼플루오로폴리에테르의 과산화물 제거를 통한 퍼플루오로폴리에테르의 제조장치 및 제조방법 |
| CN114276532A (zh) * | 2021-12-29 | 2022-04-05 | 山东东岳高分子材料有限公司 | 一种过氧化全氟聚醚的制备方法及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1745169B2 (de) * | 1967-02-09 | 1977-04-21 | Montecatini Edison S.P.A., Mailand (Italien) | Fluorierte lineare polyaether und verfahren zu ihrer herstellung |
| US4451646A (en) * | 1967-02-09 | 1984-05-29 | Montedison, S.P.A. | High molecular weight polymeric perfluorinated copolyethers and process for their preparation from tetrafluoroethylene |
| US3847978A (en) * | 1968-07-01 | 1974-11-12 | Montedison Spa | Perfluorinated linear polyethers having reactive terminal groups at both ends of the chain and process for the preparation thereof |
| IT1229845B (it) * | 1989-04-20 | 1991-09-13 | Ausimont Srl | Procedimento per la preparazione di perfluoropolieteri perossidici. |
| IT1249319B (it) * | 1991-04-26 | 1995-02-22 | Ausimont Spa | Perfluoropolieteri ad elevata viscosita' e basso contenuto di ossigeno perossidico, e procedimento per la loro preparazione |
| US5182342A (en) * | 1992-02-28 | 1993-01-26 | E. I. Du Pont De Nemours And Company | Hydrofluorocarbon solvents for fluoromonomer polymerization |
| IT1264977B1 (it) * | 1993-11-17 | 1996-10-17 | Ausimont Spa | Processo per preparare perfluoropolietri |
| US5658962A (en) * | 1994-05-20 | 1997-08-19 | Minnesota Mining And Manufacturing Company | Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application |
| JP3349513B2 (ja) * | 1994-05-24 | 2002-11-25 | エーザイ株式会社 | ２，６−ジ−ヨードフェノール−４−イルを少なくとも２ケ含む化合物とヨードアレルギー診断薬 |
| IT1274591B (it) * | 1994-08-05 | 1997-07-18 | Ausimont Spa | Processo per la preparazione di poliossiperfluoroalcani idrogeno terminati |
-
1996
- 1996-02-14 IT IT96MI000279A patent/IT1282627B1/it active IP Right Grant
-
1997
- 1997-02-11 EP EP97102123A patent/EP0790269B1/en not_active Expired - Lifetime
- 1997-02-11 ES ES97102123T patent/ES2150155T3/es not_active Expired - Lifetime
- 1997-02-11 DE DE69702550T patent/DE69702550T2/de not_active Expired - Lifetime
- 1997-02-11 AT AT97102123T patent/ATE194850T1/de not_active IP Right Cessation
- 1997-02-12 CZ CZ1997434A patent/CZ293428B6/cs not_active IP Right Cessation
- 1997-02-12 NZ NZ314218A patent/NZ314218A/en unknown
- 1997-02-12 AR ARP970100544A patent/AR005793A1/es unknown
- 1997-02-12 HR HR970079A patent/HRP970079B1/xx not_active IP Right Cessation
- 1997-02-12 ZA ZA9701176A patent/ZA971176B/xx unknown
- 1997-02-12 JP JP02763897A patent/JP3862339B2/ja not_active Expired - Fee Related
- 1997-02-13 CA CA002197538A patent/CA2197538C/en not_active Expired - Fee Related
- 1997-02-13 NO NO19970668A patent/NO311693B1/no not_active IP Right Cessation
- 1997-02-13 RO RO97-00284A patent/RO116894B1/ro unknown
- 1997-02-13 IL IL12022097A patent/IL120220A/xx not_active IP Right Cessation
- 1997-02-13 HU HU9700438A patent/HU220709B1/hu not_active IP Right Cessation
- 1997-02-13 KR KR1019970004275A patent/KR100486125B1/ko not_active IP Right Cessation
- 1997-02-13 TW TW086101634A patent/TW442497B/zh not_active IP Right Cessation
- 1997-02-13 UY UY24459A patent/UY24459A1/es not_active IP Right Cessation
- 1997-02-13 BR BR9700958A patent/BR9700958A/pt not_active IP Right Cessation
- 1997-02-13 RU RU97102618/04A patent/RU2194725C2/ru active
- 1997-02-13 PE PE1997000102A patent/PE6598A1/es not_active Application Discontinuation
- 1997-02-13 AU AU12683/97A patent/AU715369B2/en not_active Ceased
- 1997-02-13 US US08/800,022 patent/US5744651A/en not_active Expired - Lifetime
- 1997-02-13 IN IN244CA1997 patent/IN190368B/en unknown
- 1997-02-13 PL PL97318452A patent/PL318452A1/xx unknown
- 1997-02-13 BG BG101229A patent/BG62394B1/bg unknown
- 1997-02-14 CN CN97111640A patent/CN1080276C/zh not_active Expired - Lifetime
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