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1. 发明公开

EP0914367A1 THERMOPLASTIC POLYMER COMPOSITIONS WITH MODIFIED ELECTRICAL CONDUCTIVITY 失效
标题翻译：与改进电导率热塑性聚合物组合物
公开(公告)号：EP0914367A1
公开(公告)日：1999-05-12
申请号：EP97932405.0
申请日：1997-07-02
申请人： THE DOW CHEMICAL COMPANY
发明人： LUNDGARD, Richard, A. , BABINEC, Susan, J. , MUSSELL, Robert, D. , SEN, Ashish
IPC分类号： C08J3 , C08L101 , H01B1
CPC分类号： C08J3/226 , C08J2423/00 , H01B1/24 , Y10S524/901
摘要： A process for preparing an electronically-conductive thermoplastic composition having at least two phases, which includes (I) combining an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers with an electronically-conductive carbon under conditions sufficient to disperse the conductive carbon, thereby forming a mixture having at least one phase, with at least 60 percent of the carbon dispersed in a first phase which comprises at least 90 percent by weight of the mixture; and (II) combining the mixture obtained from step (I) with an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers, at least a portion of which is immiscible in the first phase, thereby forming a composition having at least two phases. Compositions prepared by this process are sufficiently conductive to be useful for a variety of applications, such as structural materials for applications requiring electromotively-paintable substrates.

2. 发明公开

EP0900228A1 A METHOD FOR PRODUCING OCTAHYDROFLUORENYL METAL COMPLEXES 失效
标题翻译：用于生产金属络合物octahydrofluorene-
公开(公告)号：EP0900228A1
公开(公告)日：1999-03-10
申请号：EP97915126.0
申请日：1997-03-18
申请人： THE DOW CHEMICAL COMPANY
发明人： NEWMAN, Thomas, H. , KLOSIN, Jerzy , NICKIAS, Peter, N.
IPC分类号： C07F7 , C07F17
CPC分类号： C07F17/00 , Y10S526/943
摘要： Octahydrofluorenyl metal complexes, such as octahydrofluorenyltitaniumtrichloride, or ring-substituted octahydrofluorenyl metal complexes wherein the metal is in the +2, +3 or +4 formal oxidation state are prepared by reduction of tetra- or hexahydrofluorenyl metal complexes. The reduction reaction may be carried out at ambient pressure and temperature in the presence of a catalyst. The process of the present invention permits preparation of octahydrofluorenyltitanium metal complexes from a series of high yield reactions starting with fluorene. The resulting complexes are useful as catalysts in preparing polymers having a syndiotactic stereostructure.

3. 发明公开

EP0897396A1 IMPROVED SYNDIOTACTIC VINYLIDENE AROMATIC POLYMERIZATION PROCESS 失效
标题翻译：间规乙烯基芳族聚合
公开(公告)号：EP0897396A1
公开(公告)日：1999-02-24
申请号：EP97918702.0
申请日：1997-04-17
申请人： THE DOW CHEMICAL COMPANY
发明人： NEWMAN, Thomas, H. , BORODYCHUK, Karen, K.
IPC分类号： C08F4 , C08F12
CPC分类号： C08F12/08 , C08F4/65912 , Y10S526/943 , C08F4/6592
摘要： A process for preparing syndiotactic vinylidene aromatic polymers comprising contacting one or more vinylidene aromatic monomers with a catalyst composition comprising a Group 4 metal complex, an activating cocatalyst, and a hydrocarbylsilane or di(hydrocarbyl)silane adjuvant.

4. 发明公开

EP0891381A1 OLEFIN SOLUTION POLYMERIZATION 失效
标题翻译：烯烃解决方案
公开(公告)号：EP0891381A1
公开(公告)日：1999-01-20
申请号：EP97920040.0
申请日：1997-04-01
申请人： THE DOW CHEMICAL COMPANY
发明人： KAO, Che, I. , CAMP, Gary, A. , COMBS, R., Bruce , EVERSDYK, David, A. , JAIN, Pradeep , STULTZ, Jeff, H. , WINTER, Greg, A. , DENTON, David, P. , WILSON, Larry, D. , WILSON, John, R.
IPC分类号： B01J19 , C08F2 , C08F10 , C08F110 , C08F210
CPC分类号： C08F10/00 , B01J19/2425 , B01J19/2435 , B01J19/245 , B01J19/2465 , B01J2219/00085 , B01J2219/00103 , B01J2219/00159 , B01J2219/00162 , B01J2219/00168 , B01J2219/00765 , C08F10/02 , C08F110/02 , C08F210/16 , C08F2/001 , C08F2/06 , C08F2/01 , C08F2500/12 , C08F2500/03 , C08F2500/09 , C08F210/14
摘要： A solution polymerization system for polymerizing an olefin monomer by reacting the monomer with catalyst and solvent has been invented. The system in one aspect includes a flow loop with a product polymer outlet, the flow loop forming a recycling reactor, a cataylst inlet on the flow loop through which catalyst and solvent flow into the flow loop, a monomer inlet on the flow loop through which monomer and solvent flow into the flow loop and, with the catalyst, form a reactant material stream, a first heat exchanger on the flow loop for receiving the reactant materials stream and any formed polymer and for removing heat of reaction or polymerization from the flow loop, and pump apparatus for pumping the reactant materials stream and formed polymer in the flow loop and from the first heat exchanger to the product polymer outlet. In one aspect, the system includes at least one additional heat exchanger on the flow loop for receiving the reactant materials stream and formed polymer and for removing heat of reaction or polymerization from the flow loop, the pump apparatus pumping formed polymer and remaining reactant materials to the product polymer outlet, and a portion of the formed polymer and remaining reactant materials flowing out from the product polymer outlet and the remainder recycling through the flow loop. In one aspect systems and methods according to the present invention are used to make polyethylene.

5. 发明公开

EP0891194A1 ABSORBENT POLYMERS HAVING A REDUCED CAKING TENDENCY 失效
标题翻译：吸收聚合物具有降低的倾向附聚
公开(公告)号：EP0891194A1
公开(公告)日：1999-01-20
申请号：EP97917088.0
申请日：1997-03-27
申请人： THE DOW CHEMICAL COMPANY
发明人： STAPLES, Thomas, L. , HENTON, David, E. , ROSE, Gene, D. , FIALKOWSKI, Michael, A.
IPC分类号： A61F13 , A61F5 , A61L15 , C08J3 , C08K5 , C08L101
CPC分类号： C08J3/124 , A61L15/20 , A61L15/34 , A61L15/48 , A61L15/60 , C08J2300/14 , Y10T428/249986
摘要： The subject invention provides water-swellable polymer compositions having reduced caking tendencies. Such polymer compositions can be produced by employing quaternary ammonium salts. In addition to having reduced caking tendencies such polymers have reduced dust and substantially maintain or increase the surface tension of an aqueous fluid in equilibrium with the polymer and air.

6. 发明公开

EP0889913A2 ALLYL CONTAINING METAL COMPLEXES AND OLEFIN POLYMERIZATION PROCESS 失效
标题翻译：烯丙基含铬金属络合物，AND METHOD FOR聚合烯烃
公开(公告)号：EP0889913A2
公开(公告)日：1999-01-13
申请号：EP97932633.0
申请日：1997-03-11
申请人： THE DOW CHEMICAL COMPANY
发明人： NICKIAS, Peter, N. , DEVORE, David, D. , TIMMERS, Francis, J.
IPC分类号： C07F17 , C08F4 , C08F10
CPC分类号： C08F10/00 , C07F17/00 , C08F4/619 , C08F4/61912 , C08F4/61916 , C08F4/6192 , C08F4/65912 , Y10S526/943 , C08F4/6592
摘要： Metal complexes useful as olefin polymerization ccatalysts corresponding to formula (I) or a dimer, solvated adduct, chelated derivative or mixture thereof, wherein L is a cyclic group or Y, that is bound to M by means of a delocalized π-bond, said group containing up to 50 non-hydrogen atoms; M is a metal of Group 3, 4 or the Lanthanide serie of the Periodic Table of the Elements; Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula: -(ER2)m-, wherein E independently each occurrence is carbon, silicon or germanium, R independently each occurrence is selected from the group consisting of hydrocarbyl, hydrocarbyloxy, silyl, and germyl of up to 20 atoms other than hydrogen, and m is an integer from 1 to 3; Y is an allyl or hydrocarbyl-, silyl- or germyl-substituted allyl group containing up to 20 non-hydrogen atoms bonded to Z and bonded via an θ3-π bond to M; X' is a neutral ligand having up to 20 non-hydrogen atoms; X' independently each occurrence is a monovalent, anionic moiety selected from hydride, halo, hydrocarbyl, silyl, germyl, hydrocarbyloxy, amide, siloxy, halohydrocarbyl, halosilyl, silylhydrocarbyl, and aminohydrocarbyl having up to 20 non-hydrogen atoms, or two X' groups together form a divalent hydrocarbadiyl group; n is a number from 0 to 3; and p is an integer from 0 to 2.

7. 发明公开

EP0874860A1 SUBSTITUTED INDENYL CONTAINING METAL COMPLEXES AND OLEFIN POLYMERIZATION PROCESS 失效
标题翻译：取代茚含铬金属络合物UNDOLEFINPOLYMERISIERUNGSVERFAHREN。
公开(公告)号：EP0874860A1
公开(公告)日：1998-11-04
申请号：EP96936227.0
申请日：1996-10-03
申请人： THE DOW CHEMICAL COMPANY
发明人： NICKIAS, Peter, N. , MCADON, Mark, H. , PATTON, Jasson, T. , FRIEDRICHSEN, Bernard, P. , SOTO, Jorge , STEVENS, James, C. , VANDERLENDE, Daniel, D.
IPC分类号： C07F17 , C07F19 , C08F4 , C08F10 , C08F210
CPC分类号： C07F17/00 , C08F4/65908 , C08F4/6592 , C08F10/00
摘要： Group 4 metal complexes comprising an indenyl group substituted in the 2 or 3 position with at least one group selected from hydrocarbyl, perfluoro substituted hydrocarbyl, silyl, germyl and mixtures thereof, said indenyl group further being covalently bonded to the metal by means of a divalent ligand group, catalytic derivatives thereof and their use as olefin polymerization catalysts are disclosed.

8. 发明公开

EP0873344A1 PREPARATION OF BISCYCLOPENTADIENYL DIENE COMPLEXES 失效
标题翻译：双环戊二烯二烯配合物的制备
公开(公告)号：EP0873344A1
公开(公告)日：1998-10-28
申请号：EP96945575.0
申请日：1996-12-05
申请人： THE DOW CHEMICAL COMPANY
发明人： TIMMERS, Francis, J. , DEVORE, David, D. , NEITHAMER, David, R.
IPC分类号： C07F7 , C07F17
CPC分类号： C07F17/00 , Y10S526/943
摘要： Bicyclopentadienyl Group 4 transition metal complexes containing a conjugated diene ligand group wherein the diene is bound to the transition metal either in the form of a σ-complex or a π-complex are readily prepared by reacting in any order: a) a Group 4 metal salt corresponding to the formula M'X3 or M''X4, or a Lewis base adduct thereof, b) a conjugated diene, D', c) a reducing agent, and d) a compound of the formula: CpM* or (Cp-Cp)M*n, wherein M' is titanium, zirconium or hafnium in the +3 formal oxidation state; M'' is titanium, zirconium or hafnium in the +4 formal oxidation state; X is a halide, C1-6 hydrocarbyloxy or di(C1-6 hydrocarbyl)amido group; D' is an uncoordinated diene having the same number of carbons as D and the same substitution pattern as D; M* is a Group 1 or 2 metal cation, a Grignard reagent cation or a tri(C1-4 hydrocarbyl)silyl group; and n is 1 when M* is a Group 2 metal cation and n is 2 when M* is a Group 1 metal cation, a Grignard reagent cation, or a trihydrocarbylsisyl group with the proviso that reagents a) and d) are not contacted with one another in the absence of reagent c).
摘要翻译：含有共轭二烯配体基团的双环戊二烯基团4过渡金属配合物，其中二烯与σ-配合物或π-配合物形式的过渡金属结合易于通过以任何顺序反应来制备：a）第4族金属对应于式M'X 3或M“X 4的盐或其路易斯碱加合物，b）共轭二烯，D'，c）还原剂，和d）下式化合物：C p M *或（C p -Cp）M * n，其中M'为+3形式氧化态的钛，锆或铪; M“是以+4形式氧化态的钛，锆或铪; X是卤化物，C 1-6烃氧基或二（C 1-6烃基）酰胺基; D'是与D具有相同数量碳的非配位二烯并且具有与D相同的取代模式; M *是第1族或第2族金属阳离子，格利雅试剂阳离子或三（C1-4烃基）甲硅烷基; 当M *为第2族金属阳离子时，n为1，当M *为第1族金属阳离子，格利雅试剂阳离子或三烃基取代基时，n为2，条件是试剂a）和d）不与彼此在没有试剂c）的情况下。

9. 发明公开

EP0863940A1 SYNDIOTACTIC VINYLAROMATIC POLYMERS HAVING IMPROVED CRYSTALLIZATION KINETICS 失效
标题翻译：具有改进的结晶动力学间同立构乙烯基芳族聚合物
公开(公告)号：EP0863940A1
公开(公告)日：1998-09-16
申请号：EP96939648.0
申请日：1996-11-14
申请人： THE DOW CHEMICAL COMPANY
发明人： MAECKER, Norbert, L. , FAY, Joseph, J.
IPC分类号： C08J5 , B29C45 , C08K5 , C08L25 , B29K25 , B29L7
CPC分类号： C08K5/5333 , C08L25/02
摘要： A polymer composition comprising: (a) a highly syndiotactic vinyl aromatic polymer; and (b) from 0.1 to 5.0 percent, based on the polymer weight of a crystallization modifier selected from the group consisting of alkaline earth metal bis[monoethyl(3,5-di-t-butyl-4-hydroxybenzyl)phosphonate] salts has improved crystal formation properties.

10. 发明公开

EP0857180A1 READILY SUPPORTABLE METAL COMPLEXES 失效
标题翻译：金属络合物的支持BE
公开(公告)号：EP0857180A1
公开(公告)日：1998-08-12
申请号：EP96930829.0
申请日：1996-09-11
申请人： THE DOW CHEMICAL COMPANY
发明人： SPENCER, Lee , NICKIAS, Peter, N.
IPC分类号： C07F3 , C07F7 , C07F17 , C07F19 , C08F4 , C08F10
CPC分类号： C07F17/00 , C08F4/61908 , C08F4/6192 , C08F10/00
摘要： Metal complexes useful as olefin polymerization catalysts corresponding to formula (I), wherein L is a delocalized, π-bonded group that is bound to M, containing up to 50 nonhydrogen atoms; M is a metal of Group 3, 4 or the Lanthanide series of the Periodic Table of the Elements; Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula: -(ER2)m-, wherein E independently each occurrence is carbon, silicon or germanium, R independently each occurrence is selected from the group consisting of C1-20 hydrocarbyl, and C1-20 hydrocarbyloxy, with the proviso that in at least one occurrence R is C1-20 hydrocarbyloxy, and m is an integer from 1 to 3; Y is a divalent ligand group comprising nitrogen, phosphorus, oxygen or sulfur, said Y containing up to 20 nonhydrogen atoms; X' is a neutral Lewis base ligand having up to 20 non-hydrogen atoms; X'' independently each occurrence is a monovalent, anionic moiety selected from hydride, halo, hydrocarbyl, silyl, germyl, hydrocarbyloxy, amide, siloxy, halohydrocarbyl, halosilyl, silylhydrocarbyl, and aminohydrocarbyl having up to 20 non-hydrogen atoms, or two X'' groups together form a divalent hydrocarbadiyl group; n is a number from 0 to 3; and p is an integer from 0 to 2.

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