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7612009 |
Process for homo-or copolymerization of conjugated olefines
Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from...
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7585805 |
Nickel-based catalyst composition
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a nickel-containing compound, (b) an alkylating agent, (c) a fluorine-containing compound,...
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7553917 |
Technique for selecting polymerization modifiers cross reference statement
A combinatorial method for identifying a catalyst composition for use in the homogeneous addition polymerization of an olefin monomers, said catalyst composition comprising a transition metal...
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7498390 |
Chromium complexes and their use in olefin polymerization
A composition having the formula I
where R 1 and R 2 are independently hydrogen, C 1 to C 12 linear and branched alkyl, C 3 to C 12 cycloalkyl, aryl, C 1 to C 12 alkoxy, F, Cl, SO 3 , C...
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7482414 |
Transition metal complex ligand and olefin polymerization catalyst containing transition metal complex
The invention provides a transition metal complex of formula (3) below:
wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are the same or different and each independently...
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7468416 |
Catalyst composition for olefin polymerization
A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an...
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7442667 |
Preparation of supported cocatalysts
The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reacting A) a support bearing functional groups, B) triethylaluminum and...
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7439379 |
Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same
The present invention relates to a transition metal complex represented by the formula (I):
wherein M represents a Group 4 transition metal;
—Y— represents (a): —C(R 1 )(R 20 )-A-,...
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7414005 |
Preparation of catalyst compositions having improved activity
The present invention relates to a process for preparing a catalyst composition for olefin polymerization, which comprises preparing a catalyst solid in a first step by bringing A) at least one...
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7371803 |
Catalyst composition II
This invention relates to a transition metal catalyst compound represented by the formula: LMX 2 or (LMX 2 ) 2 wherein each M is independently a Group 7 to 11 metal, preferably a Group 7, 8, 9,...
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7276567 |
Heterocyclic substituted metallocene compounds for olefin polymerization
This invention relates to compounds represented by formula:
wherein
M is a group 3, 4, 5 or 6 transition, lanthanide, or actinide metal atom; E is an indenyl ligand substituted in any position...
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7247687 |
Late transition metal catalysts for olefin polymerization and oligomerization
This invention relates to a transition metal compound represented by the formula LMX wherein M is a Group 3 to 11 metal L is a bulky bidentate or tridentate neutral ligand that is bonded to M by...
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7241715 |
Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance...
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7241848 |
Process for preparing low molecular weight olefin (CO)polymer and polymerization catalyst used therefor
The present invention provides a process for preparing a low molecular weight olefin (co)polymer having a narrow molecular weight distribution with high productivity, by polymerizing or...
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7214744 |
Borate activator
A catalyst system comprising (i) a bulky ligand catalyst compound; and (ii) a novel borate activator is active for olefin polymerization. The novel borate contains at least one chelating (divalent)...
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7214746 |
Phosphorus bridged metallocene compounds for olefin polymerization
This invention relates to metallocene compounds represented by formula:
wherein
M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is a...
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7202190 |
Supported catalyst system for the polymerization of olefins
A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula
M 3 R 6 R 7 R 8 ...
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7199073 |
Resins that yield low haze films and the process for their production
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are...
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7173099 |
Propylene polymers and resin composition and molding containing the polymers
The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0–80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning...
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7144839 |
Polymerization catalysts
A transition metal complex having the following Formula (A): wherein the monovalent groups R 1 and R 2 are —R a , —OR b , —NR c R d , and —NHR e ; the monovalent groups R a , R b , R c ,...
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7141690 |
Transition metal complexes, ligands, polymerization catalysts for olefins, and process for production of olefin polymers
A transition metal complex represented by the formula (1):
wherein M is a Group 4 transition metal, A is a Group 16 element, B is a Group 14 element, n is an integer of 0 or 1, R 1 , R 2 , R 3 ...
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7141633 |
Olefin trimerization using a catalyst comprising a source of chromium, molybdenum or tungsten and a ligand containing at least one phosphorous, arsenic or antimony atom bound to at least one (hetero) hydrocarbyl group
A process for the trimerization of olefins is disclosed, comprising contacting a monomeric olefin or mixture of olefins under trimerization conditions with a catalyst which comprises (a) a source...
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7105616 |
Separation of isobutene non-reacted during polymerization of isobutene
A process for working up a liquid reaction discharge of the cationic polymerization of isobutene, which substantially comprises polyisobutene, unconverted isobutene and, if required, an inert...
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7098356 |
Substituted indenyl metal complexes and polymerization process
Metal complexes comprising a substituted inden-1-yl group or hydrogenated or partially hydrogenated derivative thereof, said group being substituted at least at the 2-position thereof with a C 4-30...
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7087690 |
Substituted pyridyl amine catalysts and processes for polymerizing crystalline polymers
New ligands, compositions, metal-ligand complexes and arrays with pyridyl-amine ligands are disclosed that catalyze the polymerization of monomers into polymers. Certain of these catalysts with...
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7056994 |
Catalyst composition
The present invention relates to a catalyst composition for polymerization of a conjugated diene, comprising: (A) a metallocene-type complex represented by a general formula (I): (C 5 R 1 R 2 R 3 R...
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7041759 |
Method for the preparation of well-defined metal acetamidinate-based catalysts on solid supports
An olefin polymerization pre-catalyst, an activated catalyst and a process for preparing the catalysts are described herein. The pre-catalyst has the formula:
wherein the groups M and R 1 –R...
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7034173 |
Chemical products suited for use as co-catalysts, method for the preparation thereof and their use in catalyst systems for producing polyolefins
The invention relates to chemical products which are suited for use as co-catalysts and which can be obtained by reacting a compound of formula (I), M 1 R 1 R 2 (R 3 ) m with a compound of formula...
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7015293 |
Cycloolefin addition copolymer and optical transparent material
A cyclic olefin addition copolymer obtained by copolymerizing a cyclic olefin compound having a side chain substituent group with a ring structure, such as endo-tricyclo[4.3.0.1 2,5 ]deca-3,7-diene...
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7005486 |
Catalyst for addition polymerization, and process for producing addition polymer with the same
A catalyst for addition polymerization obtained by contacting (A) an organoaluminum compound, (B) a specific boron compound and (C) a solid inorganic compound, and a process for producing an...
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7005398 |
Olefin polymerization catalyst, catalyst component for olefin polymerization, method of storing these, and process for producing olefin polymer
A catalyst is used which comprises a cocatalyst component wherein a non-coordinating ion-containing compound is chemically bonded to a fine particulate carrier, together with a metallocene compound...
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6998363 |
Polyolefin catalyst component using non-covalent interactions
An olefin polymerization catalyst system is prepared from a catalyst of formula I or II:
R 1 –R 7 and R 1 –R 12 in formulae I and II, respectively, are each independently —H, -halo,...
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6969748 |
Metal complexes of iminohydroxamic acids
Complexes of the formula I
where M═Ni, Pd; process for preparing the metal complexes and the use of the complexes obtainable in this way for the polymerization and copolymerization of...
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6958306 |
Activated catalyst systems from substituted dialuminoxane complexes
A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided. In one aspect, the catalyst composition includes a reaction product of a...
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6956002 |
Process for polymerization of olefins
A catalyst for olefin polymerization, comprising:
a solid catalyst component comprising [A] a solid component having substantially no hydroxyl group, [B] a compound of a transition metal...
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6939929 |
Alpha-olefin-aromatic vinyl copolymer
The α-olefin-aromatic vinyl compound copolymer of the present invention is obtained by using a transition metal compound represented by the following Formula (1) and a promoter component to carry...
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6911507 |
Processes for producing cycloolefin addition polymer
A cyclic olefin having a specific polar group is polymerized by addition polymerization in a hydrocarbon solvent, using a polymerization catalyst component containing (i) a specific transition...
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6884858 |
Process for preparing polyolefin products
A novel liquid phase polymerization process for preparing a polyolefin product having preselected properties is disclosed. The process includes the steps of providing a liquid feedstock which...
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6861384 |
Process for preparation of a salt-like chemical compound and its use in catalyst systems for preparing polyolefins
A process for preparing salt-like compounds of the formula (1),
(C 6 R 1 15 ) 3 MR 2 (I)
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6846770 |
Highly active supported catalyst compositions
This invention relates to metallocene catalyst compositions which are highly active for the polymerization of olefins, particularly prochiral α-olefins. The catalyst compositions contain at least...
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6844288 |
Process for the preparation of ligands for metallogene catalysts
A process for the preparation of ligands for metallocene catalysts used in the production of amorphous polymers of alpha-olefins having high molecular weight and narrow molecular weight...
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6822057 |
Olefin polymerization catalysts derived from Group-15 cationic compounds and processes using them
Fluorinated amine compounds, R′ i ArF—ER 2 , where ArF is a fluoroaryl substituent, E is nitrogen or phosphorous, each R is independently a C 1 -C 20 hydrocarbyl substituent, or the two R's...
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6812303 |
Olefin polymerizaion catalyst and method for polymerizing an olefin using the catalyst
A novel olefin polymerization catalyst comprising: (A) a transition metal compound comprising a transition metal having η-bonded thereto a cyclic anionic ligand; (B) a mixture of (B-1) an...
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6806329 |
Highly alternating ethylene styrene interpolymers
Novel ethylene styrene interpolymers having atactic ES repeating units and an alternating structure substantially higher than that predicted using Bernoullian statistics may be prepared in the...
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6800702 |
OLEFIN TRIMERISATION USING A CATALYST COMPRISING A SOURCE OF CHROMIUM, MOLYBDENUM OR TUNGSTEN AND A LIGAND CONTAINING AT LEAST ONE PHOSPHOROUS, ARSENIC OR ANTIMONY ATOM BOUND TO AT LEAST ONE (HETERO)HYDROCARBYL GROUP
A process for the trimerisation of olefins is disclosed, comprising contacting a monomeric olefin or mixture of olefins under trimerisation conditions with a catalyst which comprises (a) a source...
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6774195 |
Catalyst composition and process for preparing norbornene-type homopolymers or copolymers
A catalyst composition and process for preparing norbornene-type homopolymers or copolymers. The norbornene-type homopolymers or copolymers can be prepared using an in-situ catalyst composition...
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6730755 |
Halosulfonic acid treated catalyst support for olefin polymerization
A supported catalyst for olefin polymerization comprises a combination of a novel metal oxide support and an activator which is an aluminoxane or a boron activator. The novel metal oxide support of...
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6727330 |
Termination and reduced gel in high cis polybutadiene
The present invention is directed to a process for forming a high-cis polydiene. The process includes catalyzing a diene polymerization, and terminating the polymerization with a termination...
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6723806 |
Metal complex containing one or more silsesquioxane ligands
Metal complex containing one or more silsesquioxane ligands having the formula: Z y (MA x ) b (I) wherein Z is a silsesquioxane ligand according to the formula: (RSiO 1.5 ) m O n B q (II) ...
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6689848 |
Late transition metal polymerization catalysts
A single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an inorganic compound comprising iron and a tridentate N-(2-ethylamino)-2-pyridylmethanimino or...
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