ES2177647T3 - Catalizadores cationicos y procedimiento para usar dichos catalizadores. - Google Patents

Catalizadores cationicos y procedimiento para usar dichos catalizadores.

Info

Publication number
ES2177647T3
ES2177647T3 ES95917752T ES95917752T ES2177647T3 ES 2177647 T3 ES2177647 T3 ES 2177647T3 ES 95917752 T ES95917752 T ES 95917752T ES 95917752 T ES95917752 T ES 95917752T ES 2177647 T3 ES2177647 T3 ES 2177647T3
Authority
ES
Spain
Prior art keywords
catalysts
procedure
cationic
polymers
copolimeters
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
ES95917752T
Other languages
English (en)
Inventor
Timothy Daniel Shaffer
Anthony Jay Dias
Ira David Finkelstein
Myron Bernard Kurtzman
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.)
ExxonMobil Chemical Patents Inc
Original Assignee
ExxonMobil Chemical Patents Inc
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
Application filed by ExxonMobil Chemical Patents Inc filed Critical ExxonMobil Chemical Patents Inc
Application granted granted Critical
Publication of ES2177647T3 publication Critical patent/ES2177647T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/04Monomers containing three or four carbon atoms
    • C08F10/08Butenes
    • C08F10/10Isobutene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F12/00Homopolymers and 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 an aromatic carbocyclic ring
    • C08F12/02Monomers containing only one unsaturated aliphatic radical
    • C08F12/04Monomers containing only one unsaturated aliphatic radical containing one ring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/65922Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • C08F4/65925Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/65922Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • C08F4/65927Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)

Abstract

SE UTILIZA UNA COMPOSICION DE CATALIZADOR CATIONICO, QUE COMPRENDE UN CATION REACTIVO, Y UN ANION COMPATIBLE NOCOORDINANTE, PREFERIBLEMENTE A TEMPERATURA DE 20 C O INFERIOR, PARA PRODUCIR POLIMEROS DE OLEFINAS, ESPECIALMENTE POLIMEROS Y COPOLIMEROS DE ISOBUTILENO.
ES95917752T 1994-04-28 1995-04-28 Catalizadores cationicos y procedimiento para usar dichos catalizadores. Expired - Lifetime ES2177647T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/234,782 US6008307A (en) 1994-04-28 1994-04-28 Process for producing olefin polymers using cationic catalysts

Publications (1)

Publication Number Publication Date
ES2177647T3 true ES2177647T3 (es) 2002-12-16

Family

ID=22882806

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95917752T Expired - Lifetime ES2177647T3 (es) 1994-04-28 1995-04-28 Catalizadores cationicos y procedimiento para usar dichos catalizadores.

Country Status (13)

Country Link
US (1) US6008307A (es)
EP (1) EP0757698B1 (es)
JP (2) JPH10504048A (es)
KR (1) KR100266114B1 (es)
CN (1) CN1159812A (es)
AU (1) AU2369495A (es)
BR (1) BR9507536A (es)
CZ (1) CZ314996A3 (es)
DE (1) DE69527952T2 (es)
ES (1) ES2177647T3 (es)
HU (1) HUT76863A (es)
PL (1) PL316989A1 (es)
WO (1) WO1995029940A1 (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732682B1 (fr) * 1995-04-07 1997-06-20 Enichem Polymeres France Dialkylmagnesium a longues chaines, son procede de preparation et ses applications
NL1003020C2 (nl) * 1996-05-03 1997-11-06 Dsm Nv Cyclopentadieenverbinding met een niet-coördinerend anion.
US5763556A (en) * 1996-05-21 1998-06-09 Exxon Chemical Patents Inc. Copolymers of ethylene and geminally disubstituted olefins
US6100354A (en) * 1997-02-24 2000-08-08 Exxon Chemical Patents Inc. Olefin copolymers from bridged bis(arylamido) Group 4 catalyst compounds
CA2337003A1 (en) * 1998-07-17 2000-01-27 Arquimedes R. Karam Process for polymerizing a cationically polymerizable olefin
US6486088B1 (en) 1998-10-23 2002-11-26 Exxonmobil Chemical Patents Inc. High activity carbenium-activated polymerization catalysts
US6300433B1 (en) * 1998-10-23 2001-10-09 Exxonmobil Chemical Patents Inc. Olefin copolymerization process with bridged hafnocenes
US6252021B1 (en) * 1998-11-23 2001-06-26 Korea Kumho Petrochemical Co., Ltd. Process for producing polyisobutene using a catalytic system comprising transition metal-benzene derivative compound-methylaluminoxane
US20020010291A1 (en) * 1998-12-04 2002-01-24 Vince Murphy Ionic liquids and processes for production of high molecular weight polyisoolefins
WO2000068276A1 (en) * 1999-05-10 2000-11-16 Japan As Represented By Director General Of The Agency Of Industrial Science And Technology Process for producing olefin living polymer
JP2003501524A (ja) * 1999-06-04 2003-01-14 ザ ビー.エフ.グッドリッチ カンパニー アルファ−メチルスチレンのオリゴマーを製造するための触媒および方法
US6346585B1 (en) 1999-06-24 2002-02-12 The Lubrizol Corporation Ammonium heteropolyacid catalized polymerization of olefins
US6858690B2 (en) 1999-11-15 2005-02-22 Exxonmobil Chemical Patents Inc. Process for polymerizing cationically polymerizable monomers
JP2003514928A (ja) 1999-11-15 2003-04-22 エクソンモービル・ケミカル・パテンツ・インク イソブチレンコポリマーの製造
KR100998236B1 (ko) * 2000-01-26 2010-12-06 미쓰이 가가쿠 가부시키가이샤 올레핀 중합체 및 그의 제조 방법
CA2332203A1 (en) * 2001-01-24 2002-07-24 Bayer Inc. Process for making high molecular weight isobutylene polymers
US7196149B2 (en) * 2003-04-17 2007-03-27 The University Of Akron Polymerization of i-butane in hydrocarbon media using bis(borane) co-initiators
US7202317B2 (en) * 2003-04-17 2007-04-10 The University Of Akron Polymerization of i-butene in hydrocarbon media using bis(borane) co-initiators
US7037989B2 (en) 2003-05-27 2006-05-02 Exxonmobil Chemical Patents Inc. Copolymers of ethylene and/or α-olefins and vicinally disubstituted olefins
CA2441079C (en) * 2003-09-16 2012-04-24 Bayer Inc. Process for production of butyl rubber
CA2618051A1 (en) * 2005-08-04 2007-02-08 The Regents Of The University Of Colorado, A Body Corporate Catalysts for radical polymerization
CA2578679A1 (en) 2006-03-14 2007-09-14 Lanxess Inc. Polymerization process using zinc halide initiators
CA2775005C (en) * 2009-09-25 2015-11-17 China Petroleum & Chemical Corporation Isoolefin polymers and process for preparing the same
SG11202004491VA (en) * 2018-01-10 2020-07-29 Borealis Ag Phase-stabilized ethylene alpha olefin copolymerization process
KR102363032B1 (ko) 2018-03-21 2022-02-16 주식회사 엘지화학 전이금속 복합체의 제조 방법
KR102156110B1 (ko) * 2018-04-05 2020-09-15 주식회사 엘지화학 양이온성 금속 복합체 및 보레이트계 벌키 음이온을 갖는 유기금속 촉매, 이의 제조 방법 및 이를 이용한 올리고머 또는 폴리머의 제조 방법
WO2021034041A1 (ko) 2019-08-19 2021-02-25 주식회사 엘지화학 유기 보레이트계 촉매, 이를 이용한 이소부텐 올리고머의 제조방법 및 이로부터 제조된 이소부텐 올리고머
CN114206815B (zh) * 2020-02-26 2024-03-08 瓦克化学股份公司 卤化四甲硅烷基硼酸盐

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631002A (en) * 1968-12-26 1971-12-28 Canadian Patents Dev Polymerization of olefins
US5241025A (en) * 1987-01-30 1993-08-31 Exxon Chemical Patents Inc. Catalyst system of enhanced productivity
IL85097A (en) * 1987-01-30 1992-02-16 Exxon Chemical Patents Inc Catalysts based on derivatives of a bis(cyclopentadienyl)group ivb metal compound,their preparation and their use in polymerization processes
PL276385A1 (en) * 1987-01-30 1989-07-24 Exxon Chemical Patents Inc Method for polymerization of olefines,diolefins and acetylene unsaturated compounds
US5153157A (en) * 1987-01-30 1992-10-06 Exxon Chemical Patents Inc. Catalyst system of enhanced productivity
US5384299A (en) * 1987-01-30 1995-01-24 Exxon Chemical Patents Inc. Ionic metallocene catalyst compositions
US5198401A (en) * 1987-01-30 1993-03-30 Exxon Chemical Patents Inc. Ionic metallocene catalyst compositions
US4808680A (en) * 1987-06-08 1989-02-28 The Dow Chemical Company Polymerization of vinyl aromatic monomers using cyclopentadienyl zirconium catalysts
US5196490A (en) * 1987-06-17 1993-03-23 The Dow Chemical Company Process for preparation of syndiotactic polystyrene
US5045517A (en) * 1987-06-17 1991-09-03 The Dow Chemical Company Catalyst and process for preparation of syndiotactic polystyrene
US5169914A (en) * 1988-05-03 1992-12-08 Edison Polymer Innovation Corporation Uniform molecular weight polymers
US5223468A (en) * 1988-07-15 1993-06-29 Fina Technology, Inc. Process and catalyst for producing syndiotactic polymers
SE8901048D0 (sv) * 1989-03-23 1989-03-23 Becker Wilhelm Ab Polymerisationsinitiator
US5026798A (en) * 1989-09-13 1991-06-25 Exxon Chemical Patents Inc. Process for producing crystalline poly-α-olefins with a monocyclopentadienyl transition metal catalyst system
US5064802A (en) * 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
US5066741A (en) * 1990-03-22 1991-11-19 The Dow Chemical Company Process for preparation of syndiotactic vinyl aromatic polymers
US5763549A (en) * 1989-10-10 1998-06-09 Fina Technology, Inc. Cationic metallocene catalysts based on organoaluminum anions
US5084586A (en) * 1990-02-12 1992-01-28 Minnesota Mining And Manufacturing Company Novel initiators for cationic polymerization
JPH04175303A (ja) * 1990-08-21 1992-06-23 Dainippon Ink & Chem Inc カチオン重合開始剤及びカチオン重合性組成物
ATE166077T1 (de) * 1991-01-12 1998-05-15 Targor Gmbh Metallocen(co)polymere, verfahren zu ihrer herstellung und ihre verwendung als katalysatoren; metallocene hierfür.
JP2927566B2 (ja) * 1991-03-28 1999-07-28 出光興産株式会社 スチレン系共重合体の製造方法
DE69219932T2 (de) * 1991-03-29 1997-09-11 Idemitsu Kosan Co Verfahren zur Herstellung eines Homo- oder Copolymerisates des Styrols
JP3194438B2 (ja) * 1992-01-08 2001-07-30 出光興産株式会社 スチレン系重合体の製造方法及びその触媒
DE9201253U1 (de) * 1992-02-01 1992-05-27 Roka-Werk GmbH Dämmbau-Elemente und Großküchengeräte, 6296 Mengerskirchen Präsentationstheke
US5219948A (en) * 1992-02-21 1993-06-15 University Of Southern Mississippi Process for cationic polymerizations
US5330948A (en) * 1992-03-31 1994-07-19 Northwestern University Homogeneous catalysts for stereoregular olefin polymerization
US5296433A (en) * 1992-04-14 1994-03-22 Minnesota Mining And Manufacturing Company Tris(pentafluorophenyl)borane complexes and catalysts derived therefrom
BE1005957A5 (fr) * 1992-06-05 1994-04-05 Solvay Procede de preparation d'un systeme catalytique, procede de (co)polymerisation d'olefines et (co)polymeres d'au moins une olefine.
US5446117A (en) * 1993-08-19 1995-08-29 Queen's University At Kingston Process for producing amorphous syndiotactic polystyrene
KR100350544B1 (ko) * 1993-09-17 2003-01-24 비피 케미칼즈 리미티드 올레핀의기상중합
US5391619A (en) * 1993-10-19 1995-02-21 Phillips Petroleum Company Poly(ethylene terephthalate) and monovinylarene/conjugated diene block copolymer blends
DE4345129A1 (de) * 1993-12-30 1995-07-06 Detroit Holding Ltd Verfahren zur Herstellung eines Fluidfilters
US5439996A (en) * 1994-06-01 1995-08-08 Queen's University At Kingston Synthesis of polymers of vinyl ethers, 1,5-hexadiene and N-vinylcarbazole
US5448001A (en) * 1994-10-07 1995-09-05 Queen's University At Kingston Polymerization of iso-butylene

Also Published As

Publication number Publication date
CN1159812A (zh) 1997-09-17
JP2004315828A (ja) 2004-11-11
DE69527952D1 (de) 2002-10-02
US6008307A (en) 1999-12-28
JPH10504048A (ja) 1998-04-14
PL316989A1 (en) 1997-03-03
EP0757698B1 (en) 2002-08-28
KR970702884A (ko) 1997-06-10
AU2369495A (en) 1995-11-29
CZ314996A3 (cs) 1998-07-15
HUT76863A (en) 1997-12-29
HU9602974D0 (en) 1997-01-28
MX9605175A (es) 1998-06-28
BR9507536A (pt) 1997-11-18
KR100266114B1 (ko) 2000-09-15
DE69527952T2 (de) 2003-04-24
WO1995029940A1 (en) 1995-11-09
EP0757698A1 (en) 1997-02-12

Similar Documents

Publication Publication Date Title
ES2177647T3 (es) Catalizadores cationicos y procedimiento para usar dichos catalizadores.
BR9806251A (pt) Composição catalìtica para a produção de polìmeros olefìnicos.
BR9908343A (pt) Processo para a sìntese de alimentação industrial quìmica e combustìvel de alta octanagem e composição de combustìvel de alta octanagem
BR9713802A (pt) Zeólito, e, processos para preparação de um material cristalino, para a conversão de hidrocarbonetos, para a conversão de álcoois inferiores e outros hidrocarbonetos oxigenados e para a redução de óxidos de nitrogênio
BR9303008A (pt) Composicao de catalisador e processo de oxi-cloracao de etileno para produzir 1,2-dicloro-etano
DE69312268D1 (de) Alkenoligomerisierung
MY124412A (en) Process for converting oxygenates to olefins with direct product quenching for heat recovery
EP0788838A4 (en) CATALYST FOR CONVERTING HYDROCARBONS AND METHOD FOR CATALYTIC CONVERSION WITH THE CATALYST
BR9801063A (pt) Processo para produzir um sistema líquido, e, uso do sistema líquido
GR3031031T3 (en) Tissue paper treating agent, process for producing tissue paper by using said treating agent and its use
GR3025453T3 (en) Process for preparing an effective catalyst for n-paraffins hydroisomerization
BR9206219A (pt) Processo para a epoxidação de um grupo olefínico, meio reacional no qual reações de epoxidação podem ser conduzidas, processo para a preparação de um catalisador para epoxidação e catalisador para epoxidação
BR9809382A (pt) Processo para rejuvenescer um catalisador de sìntese de hidrocarboneto reversivelmente desativado
ATE205873T1 (de) Verfahren und katalysator zum verbessern von schweren kohlenwasserstoffen
BR9814088B1 (pt) processo para sintetizar cataliticamente hidrocarbonetos lÍquidos enquanto se reduz o desgaste por fricÇço do catalisador.
DK0452084T3 (da) Fremgangsmåde til katalytisk omdannelse af propan
BR8501900A (pt) Processo para preparar composicao de catalisador suportado para usar em reacoes de polimerizacao de alfa-olefinas,composicao de catalisador suportado e processo para polimerizacao de alfa-olefinas
DE59701294D1 (de) Reformierungsreaktor, insbesondere zur Wasserdampfreformierung von Methanol
DE59708351D1 (de) Reformierungsreaktor, insbesondere zur Wasserdampfreformierung von Methanol
TW269642B (es)
FR2716190B1 (fr) Catalyseur d'hydrogénation et procédé d'hydrogénation du benzène utilisant ledit catalyseur.
IT1152297B (it) Procedimento per l'isomerizzazione di ossido di stirene od omologhi a beta-fenilaldeidi
BR8504994A (pt) Carga ou um suporte para substancias cataliticamente ativas,um processo para produzir a referida carga ou suporte,um catalizador produzido a partir do referido suporte,e o uso do referido catalisador
ES2126948T3 (es) Procedimiento de polimerizacion de olefinas ciclicas y composicion fotopolimerizable.
NO163894C (no) Fremgangsmaate for forbedring av varmegenereringen i den katalytiske reaktoren ved katalytisk dehydrogenering av isobutan.