JP2001500180A - α―オレフィン/ビニリデン芳香族モノマー及び/又は立体障害脂肪族又は環状脂肪族ビニリデンモノマーのインターポリマー - Google Patents
α―オレフィン/ビニリデン芳香族モノマー及び/又は立体障害脂肪族又は環状脂肪族ビニリデンモノマーのインターポリマーInfo
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- JP2001500180A JP2001500180A JP10512885A JP51288598A JP2001500180A JP 2001500180 A JP2001500180 A JP 2001500180A JP 10512885 A JP10512885 A JP 10512885A JP 51288598 A JP51288598 A JP 51288598A JP 2001500180 A JP2001500180 A JP 2001500180A
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- olefin
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- ethylene
- vinylidene
- styrene
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- 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
- C08F212/00—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
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
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- 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
- C08F212/00—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
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
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- 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
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- 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
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- 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
- C08F232/00—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
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- 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
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
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- 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
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- 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
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- 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
- C08F4/65922—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 containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—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 containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 13C NMR分光法によって検知可能なα−オレフィン/ビニリデン芳香族 モノマー又は立体障害脂肪族又は環状脂肪族モノマー/ビニリデン芳香族モノマ ー又は立体障害脂肪族又は環状脂肪族ビニリデンモノマー/α−オレフィンの挿 入(insertions)からなる1以上のテトラッドシーケンスを含有する と共に該テトラッドのモノマー挿入が専ら1、2(頭尾)形になっているα−オ レフィン/ビニリデン芳香族モノマー及び/又は脂肪族又は環状脂肪族ビニリデ ンモノマーからなることを特徴とするインターポリマー。 2. (1)(a)少なくとも1のビニリデン芳香族モノマー;又は(b)少なく とも1の立体障害脂肪族ビニリデンモノマー;又は(c)少なくとも1のビニリ デン芳香族モノマーと少なくとも1の立体障害脂肪族ビニリデンモノマーの組合 せのいずれかの1−65モル%;及び (2)2−12個の炭素原子をもつ少なくとも1の脂肪族α−オレフィンの35 −99モル%からなる請求項1のインターポリマー。 3. (1)スチレンの1−65モル%;及び (2)エチレン又はエチレンとプロピレン、4−メチルペンテン、ブテン−1、 ヘキセン−1又はオクテン−1の少なくとも1との組合せの35−99モル%; 及び (3)ジエンの1〜5モル%からなり、モノマーの合計モル数が100%である 請求項1のインターポリマー。 4. 化学シフト範囲43.70−44.25ppm及び38.0−38.5pp mに現われる炭素13NMRスペクトルのピークをもち、該ピークがピーク対ピ ークノイズの少なくとも3倍あるエチレン/スチレンコポリマー。 5. 化学シフト範囲43.75−44.25ppm及び38.0−38.5pp mに現われる炭素13NMRスペクトルのピークをもち、該ピークがピーク対ピ ークノイズの少なくとも3倍ある請求項4のエチレン/スチレンコポリマー。 6. (1)1以上のα−オレフィン、(2)1以上のビニル芳香族モノマー、及 び(3)所望により(1)又は(2)以外の1以上の重合性エチレン性不飽和モ ノマーの組合せを、一般式: 但し各Cpはそれぞれの場合独立にMにπ−結合した置換シクロペンタジエニ ル基であり;EはC又はSiであり;MはIV族の金属であり;各Rはそれぞれ の場合独立にH、ヒドロカルビル、シラヒドロカルビル、又はヒドロカルビルシ リルであって、炭素又はケイ素原子数が30以下のものであり;各R’はそれぞ れの場合独立にH、ハロゲン、ヒドロカルビル、ヒドロカルビルオキシ、シラヒ ドロカルビル、ヒドロカルビルシリルであって炭素又はケイ素原子数が30以下 のものであるか又は2個のR’基がいっしょになってC1-10ヒドロカルビル置換 1,3−ブタジエンであってもよく;mは1又は2である、で示される触媒及び 所望により活性化用共触媒の存在下に、重合条件に供することを特徴とするα− オレフィン/ビニル芳香族モノマーインターポリマーの製造方法。 7. 各Cpが独立に式: 但し各Rはそれぞれの場合独立に水素、ヒドロカルビル、シラヒドロカルビル 、又はヒドロカルビルシリルであって炭素又はケイ素原子数が30以下のもので あるか又は2個の隣接するR基はいっしょになってこれらの基の2価の誘導体を 形成している、で示される置換シクロペンタジエニル基である請求項6の方法。 8. Rがそれぞれの場合独立に適宜の場合すべての異性体を含むと共に水素、メ チル、エチル、プロピル、ブチル、ペンチル、ヘキシル、ベンジル、フェニル又 はシリルであるか、又は適宜の場合2個のこれらR基がいっしょに結合してイン デニル、フルオレニル、テトラヒドロインデニル、テトラヒドロフルオレニル、 オクタヒドロフルオレニル又はそれらのR置換誘導体等の縮合環を形成している 請求項7の方法。 9. (i)該α−オレフィンがエチレン又はエチレンと3〜8個の炭素原子をも つ他のα−オレフィンとの組合せであり;(ii)該ビニル芳香族モノマーがスチ レンであり;(iii)該触媒がラセミ−(ジメチルシランジイル(2−メチル− 4−フェニルインデニル))ジルコニウムジクロリド、ラセミ−(ジメチルシラ ンジイル(2−メチル−4−フェニルインデニル))ジルコニウム1,4−ジフ ェニル−1,3−ブタジエン、ラセミ−(ジメチルシランジイル(2−メチル− 4−フェニルインデニル))ジルコニウムジ−C1-4アルキル、ラセミ−(ジメ チルシランジイル(2−メチル−4−フェニルインデニル))ジルコニウムジ− C1-4アルコキシド、又はそれらの組合せであり;そして(iv)活性化用共触媒 が用いられると共に該活性化用共触媒がアルキルアルモキサン;アルミニウムア ルキル;アルミニウムハライド;アルミニウムアルキルハライド;強ルイス酸; 相容性非干渉性対イオンを含有する塩及び2以上のこれら共触媒の組合せからな る群から選ばれる請求項6の方法。 10.(i)該α−オレフィンがエチレンであり;(ii)該ビニル芳香族モノマー がスチレンであり;(iii)該触媒がラセミ−(ジメチルシランジイル(2−メ チル−4−フェニルインデニル))ジルコニウムジクロリドであり;そして(iv )活性化用共触媒が用いられ該活性化用共触媒がメチルアルモキサンである請求 項6の方法。 11.(I)1以上のα−オレフィン、(2)1以上のビニル芳香族モノマー、及 び(3)所望により(1)又は(2)以外の1以上の重合性エチレン性不飽和モ ノマーの組合せを、(N−(1,1−ジメチルエチル)−1,1−ジメチル−1 −((1,2,3,4,5−η)−1,5,6,7−テトラヒドロ−s−インダ セン−1−イル)シランアミナト(2−)−η)チタンジメチル、(1−インデ ニル)(第3級ブチルアミド)ジメチルシランチタンジメチル、((3−第3級 ブチル)(1,2,3,4,5−η)−1−インデニル)(第3級ブチルアミド )ジメチルシランチタンジメチル、及び((3−イソプロピル)(1,2,3, 4,5−η)−1−インデニル)(第3級ブチルアミド)ジメチルシランチタン ジメチルからなる群から選ばれる触媒の存在下に、重合条件に供することを特徴 とするα−オレフィン/ビニル芳香族モノマーインターポリマーの製造方法。 12.(i)該α−オレフィンがエチレン又はエチレンと3〜8個の炭素原子をも つ他のα−オレフィンの組合せであり;(ii)該ビニル芳香族モノマーがスチレ ンであり;(iii)活性化用共触媒が用いられ該活性化用共触媒がアルキルアル モキサン;アルミニウムアルキル;アルミニウムハライド;アルミニウムアルキ ルハライド;強ルイス酸;相容性非干渉性対イオンを含有する塩;酸化;及び2 以上のこれら共触媒の組合せからなる群から選ばれる請求項11の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US70886996A | 1996-09-04 | 1996-09-04 | |
US08/708,869 | 1996-09-04 | ||
PCT/US1997/015559 WO1998009999A2 (en) | 1996-09-04 | 1997-09-04 | Alpha-olefin/vinylidene aromatic monomer and/or hindered aliphatic or cycloaliphatic vinylidene monomer interpolymers |
Publications (1)
Publication Number | Publication Date |
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JP2001500180A true JP2001500180A (ja) | 2001-01-09 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP10512885A Ceased JP2001500180A (ja) | 1996-09-04 | 1997-09-04 | α―オレフィン/ビニリデン芳香族モノマー及び/又は立体障害脂肪族又は環状脂肪族ビニリデンモノマーのインターポリマー |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0923612B1 (ja) |
JP (1) | JP2001500180A (ja) |
KR (1) | KR20000068424A (ja) |
CN (1) | CN1096475C (ja) |
AR (1) | AR009520A1 (ja) |
AT (1) | ATE237649T1 (ja) |
AU (1) | AU4181097A (ja) |
BR (1) | BR9711675A (ja) |
CA (1) | CA2264894A1 (ja) |
DE (1) | DE69721013T2 (ja) |
ES (1) | ES2197362T3 (ja) |
TW (1) | TW473503B (ja) |
WO (1) | WO1998009999A2 (ja) |
ZA (1) | ZA977907B (ja) |
Cited By (1)
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JP2002537423A (ja) * | 1999-02-17 | 2002-11-05 | ザ ダウ ケミカル カンパニー | アルファ−オレフィン/ビニルまたはビニリデン芳香族インターポリマー生成物及び複合触媒系を使用して該生成物を製造する方法 |
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US6329479B1 (en) | 1997-04-17 | 2001-12-11 | Denki Kagaku Kogyo Kabushiki Kaisha | Transition metal compound as catalyst component for polymerization, aromatic vinyl compound-olefin copolymer having stereoregularity and method for its preparation by means of the transition metal compound as catalyst component |
US6262161B1 (en) | 1997-06-26 | 2001-07-17 | The Dow Chemical Company | Compositions having improved ignition resistance |
WO1999046326A1 (en) | 1998-03-11 | 1999-09-16 | The Dow Chemical Company | Thermoplastic compositions of interpolymers of alpha-olefin monomers with one or more vinyl or vinylidene aromatic monomers and/or one or more hindered aliphatic or cycloaliphatic vinyl or vinylidene monomers blended with engineering thermoplastics |
CA2322571A1 (en) * | 1998-03-11 | 1999-09-16 | Charles F. Diehl | Structures and fabricated articles having shape memory made from .alpha.-olefin/vinyl or vinylidene aromatic and/or hindered aliphatic vinyl or vinylidene interpolymers |
CN1130397C (zh) * | 1998-06-05 | 2003-12-10 | 住友化学工业株式会社 | 共聚物、其制造方法以及由该共聚物制成的成型品 |
DE69923312T2 (de) | 1998-06-11 | 2005-12-22 | Dow Global Technologies, Inc., Midland | Elastische filme aus alpha-olefin/vinylaromatischen- und/oder aliphatischen oder cycloaliphatischen vinyl- oder vinylidene-interpolymeren |
DE69903378T2 (de) | 1998-07-10 | 2003-07-10 | Sumitomo Chemical Co | Copolymer, Verfahren zur dessen Herstellung, und daraus geformter Gegenstand |
US6231795B1 (en) * | 1998-12-04 | 2001-05-15 | The Dow Chemical Company | Soft and flexible foams made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers |
US6187232B1 (en) | 1998-12-04 | 2001-02-13 | The Dow Chemical Company | Acoustical insulation foams |
US6048909A (en) * | 1998-12-04 | 2000-04-11 | The Dow Chemical Company | Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers |
BR9916964A (pt) | 1998-12-08 | 2002-05-28 | Dow Chemical Co | Fibras de polipropileno/etileno ligável por fusão, composição para produzì-la, método para melhorar sua resistência de ligação e processo para produzì-la |
CN1192046C (zh) * | 1998-12-25 | 2005-03-09 | 住友化学工业株式会社 | 乙烯-链烯基芳香化合物的共聚物,其生产方法和模塑制品 |
US6313252B1 (en) * | 1999-02-04 | 2001-11-06 | The Dow Chemical Company | Functionalized ethylene/vinyl or vinylidene aromatic interpolymers |
ITSA990005A1 (it) * | 1999-02-11 | 2000-08-11 | Univ Degli Studi Salerno | Copolimeri a base di propilene contenenti unita' stireniche |
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1997
- 1997-09-03 ZA ZA977907A patent/ZA977907B/xx unknown
- 1997-09-03 AR ARP970104015A patent/AR009520A1/es not_active Application Discontinuation
- 1997-09-03 TW TW086112679A patent/TW473503B/zh active
- 1997-09-04 ES ES97939797T patent/ES2197362T3/es not_active Expired - Lifetime
- 1997-09-04 DE DE69721013T patent/DE69721013T2/de not_active Expired - Fee Related
- 1997-09-04 AT AT97939797T patent/ATE237649T1/de not_active IP Right Cessation
- 1997-09-04 CN CN97198572A patent/CN1096475C/zh not_active Expired - Fee Related
- 1997-09-04 WO PCT/US1997/015559 patent/WO1998009999A2/en active IP Right Grant
- 1997-09-04 EP EP97939797A patent/EP0923612B1/en not_active Expired - Lifetime
- 1997-09-04 CA CA002264894A patent/CA2264894A1/en not_active Abandoned
- 1997-09-04 AU AU41810/97A patent/AU4181097A/en not_active Abandoned
- 1997-09-04 KR KR1019997001788A patent/KR20000068424A/ko not_active Application Discontinuation
- 1997-09-04 BR BR9711675-0A patent/BR9711675A/pt not_active Application Discontinuation
- 1997-09-04 JP JP10512885A patent/JP2001500180A/ja not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002537423A (ja) * | 1999-02-17 | 2002-11-05 | ザ ダウ ケミカル カンパニー | アルファ−オレフィン/ビニルまたはビニリデン芳香族インターポリマー生成物及び複合触媒系を使用して該生成物を製造する方法 |
Also Published As
Publication number | Publication date |
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CN1096475C (zh) | 2002-12-18 |
KR20000068424A (ko) | 2000-11-25 |
AR009520A1 (es) | 2000-04-26 |
EP0923612B1 (en) | 2003-04-16 |
ZA977907B (en) | 1999-03-03 |
ES2197362T3 (es) | 2004-01-01 |
ATE237649T1 (de) | 2003-05-15 |
DE69721013D1 (de) | 2003-05-22 |
CA2264894A1 (en) | 1998-03-12 |
DE69721013T2 (de) | 2004-01-29 |
AU4181097A (en) | 1998-03-26 |
BR9711675A (pt) | 2002-01-02 |
EP0923612A2 (en) | 1999-06-23 |
WO1998009999A2 (en) | 1998-03-12 |
TW473503B (en) | 2002-01-21 |
WO1998009999A3 (en) | 1998-04-30 |
CN1232476A (zh) | 1999-10-20 |
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