IN172494B - - Google Patents
Info
- Publication number
- IN172494B IN172494B IN1012DE1987A IN172494B IN 172494 B IN172494 B IN 172494B IN 1012DE1987 A IN1012DE1987 A IN 1012DE1987A IN 172494 B IN172494 B IN 172494B
- Authority
- IN
- India
- Prior art keywords
- cyclopentane
- units
- butadiene
- trans
- ethylene
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/639—Component covered by group C08F4/62 containing a transition metal-carbon bond
- C08F4/63912—Component covered by group C08F4/62 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/639—Component covered by group C08F4/62 containing a transition metal-carbon bond
- C08F4/63916—Component covered by group C08F4/62 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/639—Component covered by group C08F4/62 containing a transition metal-carbon bond
- C08F4/6392—Component covered by group C08F4/62 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65916—Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; 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
- C08F4/60—Metals; 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
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polyamides (AREA)
- Materials For Medical Uses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Priority Applications (19)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000511778A CA1268754A (fr) | 1985-06-21 | 1986-06-17 | Catalyseur de polymerisation sur support |
AR304325A AR240463A1 (es) | 1985-06-21 | 1986-06-19 | Catalizador soportado para la polimerizacion de olefinas y procedimiento para prepararlos. |
AU58914/86A AU611384B2 (en) | 1985-06-21 | 1986-06-20 | New supported polymerization catalyst |
JP61143142A JP2556969B2 (ja) | 1985-06-21 | 1986-06-20 | 新規な重合用担持触媒 |
EP86304806A EP0206794B2 (fr) | 1985-06-21 | 1986-06-23 | Catalyseur de polymérisation sur support |
DE3689244T DE3689244T3 (de) | 1985-06-21 | 1986-06-23 | Polymerisationskatalysator auf Träger. |
IN1012DE1987 IN172494B (fr) | 1986-12-19 | 1987-11-27 | |
AU12234/88A AU616396B2 (en) | 1986-12-19 | 1987-12-16 | Copolymers of ethylene and 1,3-butadiene |
JP62506320A JP2764163B2 (ja) | 1986-12-19 | 1987-12-16 | エチレンと1,3―ブタジエンの共重合体 |
PCT/US1987/003297 WO1988004672A1 (fr) | 1986-12-19 | 1987-12-16 | Copolymeres d'ethylene et 1,3-butadiene |
EP92203227A EP0526955A1 (fr) | 1986-12-19 | 1987-12-18 | Copolymères de l'éthylène et de 1,3-butadiène |
ES87311163T ES2058131T3 (es) | 1986-12-19 | 1987-12-18 | Copolimeros de etileno y 1,3-butadieno. |
EP87311163A EP0275676B1 (fr) | 1986-12-19 | 1987-12-18 | Copolymères de l'éthylène et de 1,3-butadiène |
DE3750506T DE3750506T2 (de) | 1986-12-19 | 1987-12-18 | Copolymere aus Äthylen und 1,3-Butadien. |
AT87311163T ATE111114T1 (de) | 1986-12-19 | 1987-12-18 | Copolymere aus äthylen und 1,3-butadien. |
US07/170,485 US4808561A (en) | 1985-06-21 | 1988-03-18 | Supported polymerization catalyst |
US07/278,910 US4897455A (en) | 1985-06-21 | 1988-12-02 | Polymerization process |
US07/609,325 US5191052A (en) | 1985-06-21 | 1990-11-02 | Copolymers of ethylene and 1,3-butadiene |
AU70079/91A AU624285B2 (en) | 1985-06-21 | 1991-01-30 | New supported polymerization catalyst |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US94438586A | 1986-12-19 | 1986-12-19 | |
IN1012DE1987 IN172494B (fr) | 1986-12-19 | 1987-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
IN172494B true IN172494B (fr) | 1993-09-04 |
Family
ID=26324691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1012DE1987 IN172494B (fr) | 1985-06-21 | 1987-11-27 |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP0526955A1 (fr) |
JP (1) | JP2764163B2 (fr) |
AT (1) | ATE111114T1 (fr) |
AU (1) | AU616396B2 (fr) |
DE (1) | DE3750506T2 (fr) |
ES (1) | ES2058131T3 (fr) |
IN (1) | IN172494B (fr) |
WO (1) | WO1988004672A1 (fr) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008204A (en) * | 1988-02-02 | 1991-04-16 | Exxon Chemical Patents Inc. | Method for determining the compositional distribution of a crystalline copolymer |
EP0358103B1 (fr) * | 1988-09-05 | 1993-12-15 | Idemitsu Kosan Company Limited | Méthode pour préparer un polymère |
DE4139261A1 (de) * | 1991-11-29 | 1993-06-03 | Basf Ag | Ethylen-copolymerisate niederer dichte |
US5763543A (en) * | 1994-09-14 | 1998-06-09 | Exxon Chemical Patents Inc. | Olefin polymerization process with little or no scavenger present |
US5712353A (en) * | 1994-10-31 | 1998-01-27 | Exxon Chemical Patents Inc. | Gas phase polymerization process |
US6300451B1 (en) | 1994-10-24 | 2001-10-09 | Exxon Chemical Patents Inc. | Long-chain branched polymers and their production |
CA2181413A1 (fr) * | 1995-07-18 | 1998-01-18 | Edwar S. Shamshoum | Methode pour la propagation syndiotactique des olefines |
US6239058B1 (en) * | 1995-07-18 | 2001-05-29 | Fina Technology, Inc. | Process for activating a metallocene catalyst supported on silica |
IT1276070B1 (it) | 1995-10-31 | 1997-10-24 | Siac It Additivi Carburanti | Processo per la preparazione di polimeri a base di etilene a basso peso molecolare |
CA2192156C (fr) * | 1995-12-08 | 2006-07-11 | Nobuhiro Tsujimoto | Catalyseur et methode pour l'obtention d'un polymere dienique conjugue |
SG71754A1 (en) * | 1997-02-13 | 2000-04-18 | Sumitomo Chemical Co | Copolymer and copolymer composition |
TWI246520B (en) | 1997-04-25 | 2006-01-01 | Mitsui Chemicals Inc | Processes for olefin polymerization |
DE69813958T2 (de) * | 1997-07-18 | 2004-03-11 | Mitsui Chemicals, Inc. | Ungesättigte Copolymere, Verfahren zu deren Herstellung und Mischungen, die diese enthalten |
JP2000063639A (ja) * | 1998-08-13 | 2000-02-29 | Mitsui Chemicals Inc | α−オレフィン/共役ジエン系共重合体組成物 |
TW576843B (en) | 1998-12-25 | 2004-02-21 | Mitsui Chemicals Inc | Olefin polymerization catalyst and process for olefin polymerization using the olefin polymerization catalyst |
ITSA20010016A1 (it) | 2001-06-05 | 2001-09-05 | Univ Degli Studi Salerno | Copolimeri a base di etilene contenenti anelli ciclopropanici nella catena principale. |
JP2004018696A (ja) * | 2002-06-17 | 2004-01-22 | Tosoh Corp | エチレン−共役ジエン系共重合体 |
WO2004026921A1 (fr) | 2002-09-20 | 2004-04-01 | Exxonmobil Chemical Patents Inc. | Production de polymeres dans des conditions supercritiques |
BRPI0513057A (pt) | 2004-07-08 | 2008-04-22 | Exxonmobil Chem Patents Inc | produção de polìmero em condições supercrìticas |
US8143352B2 (en) | 2006-12-20 | 2012-03-27 | Exxonmobil Research And Engineering Company | Process for fluid phase in-line blending of polymers |
US8080610B2 (en) | 2007-03-06 | 2011-12-20 | Exxonmobil Research And Engineering Company | Monomer recycle process for fluid phase in-line blending of polymers |
US7928162B2 (en) | 2007-09-13 | 2011-04-19 | Exxonmobil Research And Engineering Company | In-line process for producing plasticized polymers and plasticized polymer blends |
CN101855250B (zh) | 2007-09-13 | 2013-01-02 | 埃克森美孚研究工程公司 | 增塑剂与基础聚合物的在线共混 |
US7910679B2 (en) | 2007-12-20 | 2011-03-22 | Exxonmobil Research And Engineering Company | Bulk homogeneous polymerization process for ethylene propylene copolymers |
CN101945942B (zh) | 2007-12-20 | 2012-08-08 | 埃克森美孚研究工程公司 | 生产粒料稳定的聚烯烃的在线方法 |
CN103254513B (zh) | 2007-12-20 | 2015-08-26 | 埃克森美孚研究工程公司 | 全同立构聚丙烯和乙烯-丙烯共聚物的共混物 |
EP2415792B1 (fr) | 2009-03-30 | 2014-11-12 | Mitsui Chemicals, Inc. | Copolymère d'oléfine et de diène conjugué et son procédé de fabrication |
EP2599804B1 (fr) | 2010-07-30 | 2019-02-20 | Bridgestone Corporation | Copolymère, composition de caoutchouc, composition de caoutchouc réticulée et pneu |
JP5775872B2 (ja) * | 2010-07-30 | 2015-09-09 | 株式会社ブリヂストン | 共重合体の連鎖構造を制御する方法 |
EP2810984B1 (fr) * | 2012-01-30 | 2016-09-14 | Bridgestone Corporation | Composition de caoutchouc anti-vibration, composition de caoutchouc réticulée anti-vibration et caoutchouc anti-vibration |
JP5893937B2 (ja) * | 2012-01-30 | 2016-03-23 | 株式会社ブリヂストン | 防振ゴム組成物、架橋防振ゴム組成物及び防振ゴム |
JP5893938B2 (ja) * | 2012-01-30 | 2016-03-23 | 株式会社ブリヂストン | 防振ゴム組成物及び防振ゴム |
EP2810985B1 (fr) * | 2012-01-30 | 2017-04-05 | Bridgestone Corporation | Composition en caoutchouc d'amortissement de vibrations, composition en caoutchouc réticulé d'amortissement de vibrations et caoutchouc d'amortissement de vibrations |
FR3045613B1 (fr) | 2015-12-17 | 2017-12-15 | Michelin & Cie | Copolymere d'ethylene et de butadiene de microstructure homogene |
FR3045612B1 (fr) | 2015-12-17 | 2017-12-15 | Michelin & Cie | Copolymere d'ethylene et de butadiene de microstructure homogene |
FR3045633B1 (fr) | 2015-12-22 | 2017-12-15 | Michelin & Cie | Pneumatique comprenant une composition de caoutchouc comprenant un elastomere dienique substitue |
FR3065215A1 (fr) | 2017-04-18 | 2018-10-19 | Compagnie Generale Des Etablissements Michelin | Synthese en continu de copolymere d'ethylene et de butadiene |
FR3065216A1 (fr) | 2017-04-18 | 2018-10-19 | Compagnie Generale Des Etablissements Michelin | Synthese en continu de copolymere d'ethylene et de butadiene |
JP2019099719A (ja) * | 2017-12-05 | 2019-06-24 | 株式会社ブリヂストン | 共重合体、ゴム組成物、樹脂組成物、タイヤ及び樹脂製品 |
JP6983048B2 (ja) * | 2017-12-05 | 2021-12-17 | 株式会社ブリヂストン | 共重合体、ゴム組成物、樹脂組成物、タイヤ及び樹脂製品 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1115152B (it) * | 1979-03-07 | 1986-02-03 | Anic Spa | Processo per la copolimerizzazione dell'etilene con idrocarburi pluriinsaturi |
DE3007725A1 (de) * | 1980-02-29 | 1981-09-17 | Hansjörg Prof. Dr. 2000 Hamburg Sinn | Verfahren zur herstellung von polyethylen, polypropylen und copolymeren |
DE3035358A1 (de) * | 1980-09-19 | 1982-05-06 | Bayer Ag, 5090 Leverkusen | Terpolymere aus ethylen, butadien und isopren und verfahren zu ihrer herstellung |
DE3127133A1 (de) * | 1981-07-09 | 1983-01-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur herstellung von polyolefinen und deren copolymerisaten |
ZA844157B (en) * | 1983-06-06 | 1986-01-29 | Exxon Research Engineering Co | Process and catalyst for polyolefin density and molecular weight control |
CA1268754A (fr) * | 1985-06-21 | 1990-05-08 | Howard Curtis Welborn, Jr. | Catalyseur de polymerisation sur support |
GB2184368A (en) * | 1985-11-27 | 1987-06-24 | Dow Chemical Co | High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers |
IN172282B (fr) * | 1986-12-19 | 1993-05-29 | Exxon Chemical Patents Inc |
-
1987
- 1987-11-27 IN IN1012DE1987 patent/IN172494B/en unknown
- 1987-12-16 JP JP62506320A patent/JP2764163B2/ja not_active Expired - Lifetime
- 1987-12-16 WO PCT/US1987/003297 patent/WO1988004672A1/fr active Application Filing
- 1987-12-16 AU AU12234/88A patent/AU616396B2/en not_active Ceased
- 1987-12-18 DE DE3750506T patent/DE3750506T2/de not_active Expired - Fee Related
- 1987-12-18 AT AT87311163T patent/ATE111114T1/de not_active IP Right Cessation
- 1987-12-18 EP EP92203227A patent/EP0526955A1/fr not_active Withdrawn
- 1987-12-18 EP EP87311163A patent/EP0275676B1/fr not_active Expired - Lifetime
- 1987-12-18 ES ES87311163T patent/ES2058131T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0526955A1 (fr) | 1993-02-10 |
DE3750506T2 (de) | 1995-01-12 |
AU616396B2 (en) | 1991-10-31 |
DE3750506D1 (de) | 1994-10-13 |
ES2058131T3 (es) | 1994-11-01 |
JP2764163B2 (ja) | 1998-06-11 |
JPH01501633A (ja) | 1989-06-08 |
EP0275676A1 (fr) | 1988-07-27 |
EP0275676B1 (fr) | 1994-09-07 |
WO1988004672A1 (fr) | 1988-06-30 |
ATE111114T1 (de) | 1994-09-15 |
AU1223488A (en) | 1988-07-15 |
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