DE69630322D1 - Durch metall-ligandenkomplexe katalysierte verbesserte verfahren - Google Patents

Durch metall-ligandenkomplexe katalysierte verbesserte verfahren

Info

Publication number
DE69630322D1
DE69630322D1 DE69630322T DE69630322T DE69630322D1 DE 69630322 D1 DE69630322 D1 DE 69630322D1 DE 69630322 T DE69630322 T DE 69630322T DE 69630322 T DE69630322 T DE 69630322T DE 69630322 D1 DE69630322 D1 DE 69630322D1
Authority
DE
Germany
Prior art keywords
metal
improved methods
ligand complexes
catalyzed
methods catalyzed
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.)
Expired - Lifetime
Application number
DE69630322T
Other languages
English (en)
Other versions
DE69630322T2 (de
DE69630322T3 (de
Inventor
Ernst Billig
Robert Bryant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Chemicals and Plastics Technology LLC
Original Assignee
Union Carbide Chemicals and Plastics Technology LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27533266&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69630322(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Chemicals and Plastics Technology LLC filed Critical Union Carbide Chemicals and Plastics Technology LLC
Publication of DE69630322D1 publication Critical patent/DE69630322D1/de
Publication of DE69630322T2 publication Critical patent/DE69630322T2/de
Application granted granted Critical
Publication of DE69630322T3 publication Critical patent/DE69630322T3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574—Esters of oxyacids of phosphorus
    • C07F9/65746—Esters of oxyacids of phosphorus the molecule containing more than one cyclic phosphorus atom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
    • B01J31/0255—Phosphorus containing compounds
    • B01J31/0257—Phosphorus acids or phosphorus acid esters
    • B01J31/0259—Phosphorus acids or phosphorus acid esters comprising phosphorous acid (-ester) groups ((RO)P(OR')2) or the isomeric phosphonic acid (-ester) groups (R(R'O)2P=O), i.e. R= C, R'= C, H
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
    • B01J31/185—Phosphites ((RO)3P), their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/40—Regeneration or reactivation
    • B01J31/4015—Regeneration or reactivation of catalysts containing metals
    • B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/40—Regeneration or reactivation
    • B01J31/4015—Regeneration or reactivation of catalysts containing metals
    • B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
    • B01J31/4038—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing noble metals
    • B01J31/4046—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing noble metals containing rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/40—Regeneration or reactivation
    • B01J31/4015—Regeneration or reactivation of catalysts containing metals
    • B01J31/4053—Regeneration or reactivation of catalysts containing metals with recovery of phosphorous catalyst system constituents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/40—Regeneration or reactivation
    • B01J31/4015—Regeneration or reactivation of catalysts containing metals
    • B01J31/4061—Regeneration or reactivation of catalysts containing metals involving membrane separation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
    • C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
    • C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
    • C07C45/505—Asymmetric hydroformylation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/025—Purification; Separation; Stabilisation; Desodorisation of organo-phosphorus compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
    • B01J2231/32—Addition reactions to C=C or C-C triple bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
    • B01J2231/32—Addition reactions to C=C or C-C triple bonds
    • B01J2231/321—Hydroformylation, metalformylation, carbonylation or hydroaminomethylation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/50—Redistribution or isomerisation reactions of C-C, C=C or C-C triple bonds
    • B01J2231/52—Isomerisation reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82—Metals of the platinum group
    • B01J2531/822—Rhodium
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69630322T 1995-12-06 1996-12-05 Durch metall-ligandenkomplexe katalysierte verbesserte verfahren Expired - Lifetime DE69630322T3 (de)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US876395P 1995-12-06 1995-12-06
US828495P 1995-12-06 1995-12-06
US828695P 1995-12-06 1995-12-06
US828995P 1995-12-06 1995-12-06
US8763P 1995-12-06
US8286P 1995-12-06
US8289P 1995-12-06
US8284P 1995-12-06
US757740 1996-11-26
US08/757,740 US5767321A (en) 1995-12-06 1996-11-26 Metal-ligand complex catalyzed processes
PCT/US1996/019412 WO1997020800A1 (en) 1995-12-06 1996-12-05 Improved metal-ligand complex catalyzed processes

Publications (3)

Publication Number Publication Date
DE69630322D1 true DE69630322D1 (de) 2003-11-13
DE69630322T2 DE69630322T2 (de) 2004-07-29
DE69630322T3 DE69630322T3 (de) 2010-02-18

Family

ID=27533266

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69630322T Expired - Lifetime DE69630322T3 (de) 1995-12-06 1996-12-05 Durch metall-ligandenkomplexe katalysierte verbesserte verfahren

Country Status (14)

Country Link
US (1) US5767321A (de)
EP (1) EP1019352B2 (de)
JP (1) JP4050792B2 (de)
CN (1) CN1078580C (de)
AU (1) AU720249B2 (de)
BR (1) BR9611808A (de)
CA (1) CA2239618C (de)
CZ (1) CZ174898A3 (de)
DE (1) DE69630322T3 (de)
EA (1) EA001502B1 (de)
MX (1) MX9804076A (de)
PL (1) PL327088A1 (de)
SK (1) SK69298A3 (de)
WO (1) WO1997020800A1 (de)

Families Citing this family (31)

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Publication number Priority date Publication date Assignee Title
JP3812095B2 (ja) * 1997-10-28 2006-08-23 三菱化学株式会社 アルデヒド類の製造方法及びこれに用いるビスホスファイト
DE19852104A1 (de) * 1998-11-12 2000-05-18 Degussa Verfahren zur Herstellung von ß-Hydroxyaldehyden
DE10048301A1 (de) * 2000-09-29 2002-04-11 Oxeno Olefinchemie Gmbh Stabilisierung von Rhodiumkatalysatoren für die Hydroformylierung von Olefinen
DE10220801A1 (de) * 2002-05-10 2003-11-20 Oxeno Olefinchemie Gmbh Verfahren zur Rhodium-katalysierten Hydroformylierung von Olefinen unter Reduzierung der Rhodiumverluste
DE10349343A1 (de) * 2003-10-23 2005-06-02 Basf Ag Stabilisierung von Hydroformylierungskatalysatoren auf Basis von Phosphoramiditliganden
DE102004050935A1 (de) * 2004-10-18 2006-04-20 Basf Ag Extraktion von Nickel(0)-Komplexen aus Nitrilgemischen mit verminderter Mulmbildung
JP2008517995A (ja) * 2004-10-27 2008-05-29 ダニスコ エイ／エス プロセス
JP2006306815A (ja) * 2005-04-28 2006-11-09 Mitsubishi Chemicals Corp アルデヒドの製造方法
DE102005042464A1 (de) * 2005-09-07 2007-03-08 Oxeno Olefinchemie Gmbh Carbonylierungsverfahren unter Zusatz von sterisch gehinderten sekundären Aminen
US8586800B2 (en) 2009-10-16 2013-11-19 Dow Technology Investments Llc Gas phase hydroformylation process
KR101346977B1 (ko) 2010-06-04 2014-01-02 주식회사 엘지화학 하이드로포르밀화 반응 부산물 제거용 장치 및 방법
US8884072B2 (en) * 2010-11-12 2014-11-11 Dow Technology Investments Llc Mitigation of fouling in hydroformylation processes by water addition
SA112330271B1 (ar) * 2011-04-18 2015-02-09 داو تكنولوجى انفستمنتس ال ال سى تخفيف التلوث في عمليات هيدروفورملة عن طريق إضافة الماء
EP2797939B1 (de) 2011-12-30 2018-10-31 Basf Se Verfahren zur reinigung von organischen diphosphitverbindungen
RU2660899C2 (ru) 2011-12-30 2018-07-11 Басф Се Кристаллический сольват и несольватированные формы 6,6'-[[3,3',5,5'-тетракис(1,1-диметилэтил)-[1,1'-бифенил]-2,2'-диил]бис(окси)]бис-дибензо[d,f][1,3,2]-диоксафосфепина
US9174907B2 (en) * 2012-06-04 2015-11-03 Dow Technology Investments Llc Hydroformylation process
MY176756A (en) 2012-09-25 2020-08-21 Dow Technology Investments Llc Process for stabilizing a phosphite ligand against degradation
JP5583879B1 (ja) * 2012-11-09 2014-09-03 三井化学株式会社 アルデヒド化合物の精製方法
KR102098429B1 (ko) * 2012-12-06 2020-04-07 다우 테크놀로지 인베스트먼츠 엘엘씨. 하이드로포밀화 방법
CN104045532B (zh) 2013-03-15 2018-05-25 陶氏技术投资有限责任公司 加氢甲酰化方法
DE102013217166A1 (de) * 2013-08-28 2015-03-05 Evonik Industries Ag Verfahren zur Hydroformylierung von ungesättigten Verbindungen durch SILP-Katalyse
DE102013217174A1 (de) * 2013-08-28 2015-03-05 Evonik Industries Ag Zusammensetzung und deren Verwendung in Verfahren zur Hydroformylierung von ungesättigten Verbindungen
CN104513143A (zh) 2013-09-26 2015-04-15 陶氏技术投资有限责任公司 加氢甲酰化方法
JP6560248B2 (ja) * 2014-03-31 2019-08-14 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー ヒドロホルミル化プロセス
JP6694396B2 (ja) * 2014-05-14 2020-05-13 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー 安定化された有機リン化合物
CA2993161C (en) 2015-07-28 2023-09-26 Dow Technology Investments Llc Method for the preparation of a stabilized organophosphorous compound solution
KR20210013702A (ko) 2018-05-30 2021-02-05 다우 테크놀로지 인베스트먼츠 엘엘씨. 하이드로포밀화 공정에서 촉매의 탈활성화를 느리게 하고/하거나 테트라포스핀 리간드 사용을 느리게 하는 방법
CA3100779A1 (en) 2018-05-30 2019-12-05 Dow Technology Investments Llc Methods of controlling hydroformylation processes
CN112055614A (zh) 2018-05-30 2020-12-08 陶氏技术投资有限责任公司 包括单膦、四膦配位体的组合的催化剂组合物和使用其的加氢甲酰化过程
EP3950063A4 (de) * 2019-03-29 2022-11-30 Kowa Company, Ltd. Neuartiges azaindolderivat
CN116997540A (zh) 2021-03-31 2023-11-03 陶氏技术投资有限责任公司 加氢甲酰化方法

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US467306A (en) * 1892-01-19 Fence-making machine
US3917661A (en) * 1970-01-07 1975-11-04 Union Carbide Corp Hydroformylation of unsaturated organic compounds
ATE16475T1 (de) * 1982-06-11 1985-11-15 Davy Mckee London Hydroformylierungsverfahren.
GB8334359D0 (en) † 1983-12-23 1984-02-01 Davy Mckee Ltd Process
EP0213693B1 (de) † 1985-08-30 1991-08-21 Mitsubishi Denki Kabushiki Kaisha Photomaskenmaterial
US4668651A (en) † 1985-09-05 1987-05-26 Union Carbide Corporation Transition metal complex catalyzed processes
US5288918A (en) * 1992-09-29 1994-02-22 Union Carbide Chemicals & Plastics Technology Corporation Hydroformylation process

Also Published As

Publication number Publication date
EA001502B1 (ru) 2001-04-23
EP1019352B2 (de) 2009-08-12
US5767321A (en) 1998-06-16
SK69298A3 (en) 1999-03-12
BR9611808A (pt) 1999-02-17
EP1019352B1 (de) 2003-10-08
JP2000501712A (ja) 2000-02-15
DE69630322T2 (de) 2004-07-29
CZ174898A3 (cs) 1998-10-14
AU1147797A (en) 1997-06-27
CA2239618C (en) 2007-02-13
AU720249B2 (en) 2000-05-25
CN1078580C (zh) 2002-01-30
JP4050792B2 (ja) 2008-02-20
MX9804076A (es) 1998-09-30
WO1997020800A1 (en) 1997-06-12
DE69630322T3 (de) 2010-02-18
EP1019352A1 (de) 2000-07-19
CN1203579A (zh) 1998-12-30
EA199800515A1 (ru) 1998-12-24
PL327088A1 (en) 1998-11-23
CA2239618A1 (en) 1997-06-12

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: DOW TECHNOLOGY INVESTMENTS LLC, MIDLAND, MICH., US

8328 Change in the person/name/address of the agent

Representative=s name: NEUGEBAUER, J., DIPL.-PHYS.UNIV. M.A./SUNY, PAT.-A

8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY , US