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8894880 Wholly aromatic liquid crystal polyester resin compound having improved insulation properties  
Provided is a wholly aromatic liquid crystalline polyester resin compound having excellent electrical insulating properties, heat resistance, and mechanical strength due to the inclusion of an...
8829067 Polymerizable compositions with initiators containing several Ge atoms  
Composition with at least one polymerizable binder and one polymerization initiator, which contains at least one acylgermanium compound according to general Formula (I), and the use of...
8729204 Compositions and method for producing poly-aminofunctionalized polymerization initiators and corresponding polymers  
Compositions and methods for producing polymerization initiators comprising at least two protected primary amine groups. Polymers prepared using such polymerization initiators can comprise a...
8722828 Process for continuous production of cycloolefin resins, and sheets or films thereof, using ring opening metathesis polymerization  
A process (1) for producing a cycloolefin resin film comprising the steps of: the step (I) of mixing a cycloolefin monomer and a metathesis polymerization catalyst to prepare a polymerizable...
8669335 Knotty polymers via supramolecularly templated macroinitiators and living polymerization and methods for making and using same  
A design, synthesis and use of templated chemical routes are disclosed for the synthesis of interlocked macromolecular structures and orderly entanglements that are dubbed “Knotty Polymers” using...
8236910 Cycloolefin copolymers, a process for their preparation and the use thereof and catalysts  
Cycloolefin copolymers which are distinguished by the presence of racemic diads of repeating polycyclic units and additionally by racemic triads of repeating polycyclic units are described. These...
8138286 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Cycloolefin copolymers, a process for their preparation and the use thereof and catalysts
 
Cycloolefin copolymers which are distinguished by the presence of racemic diads of repeating polycyclic units and additionally by racemic triads of repeating polycyclic units are described. These...
8076430 Living radical polymerization promoter  
An organobismuth compound represented by the formula (1) and a method for preparing a living radical polymer using the organobismuth compound. In the formula (1), R1 to R3 each represent a C1-C8...
8067518 Polymers made with metallocene catalysts, for use in rotomolding and injection molding products  
Ethylene alpha-olefin copolymers formed by contacting at least one supported metallocene catalyst, ethylene, and an alpha-olefin in a gas phase reactor are disclosed. In some embodiments, the...
8008414 Organic antimony compound, process for producing the same, living radical polymerization initiator, process for producing polymer using the same, and polymer  
An organoantimony compound represented by the formula (1), processes for producing polymers with use of the compound, and polymers wherein R1 and R2 are C1-C8 alkyl, aryl, substituted aryl or an...
7847043 Organic bismuth compound, method for producing same, living radical polymerization initiator, method for producing polymer using same, and polymer  
An organobismuth compound represented by the formula (1) wherein R1 and R2 are C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R3 and R4 are each a hydrogen atom or C1-C8...
7737218 Method for generating free radical capable polymers using tin or silicon halide compounds  
Provided is a method comprising reacting the anionic living end of a polymer with a compound selected from the group consisting of tin halides and silicon halides to produced a polymer with a...
7709586 Olefin polymerization catalyst and olefin polymerization process using the same  
An olefin polymerization catalyst which includes an organometallic compound of the following Formula 1; aluminoxane; and an organic transition metal compound of the following Formula 2:...
7423100 Polymerization processes  
The invention provides for polymerization processes to produce polymers utilizing boiling pool reactor systems and diluents including hydrofluorocarbons.
7414101 Polymerization processes  
The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent.
7399814 Living radical polymerization method  
A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst...
7202317 Polymerization of i-butene in hydrocarbon media using bis(borane) co-initiators  
A method is provided for cationically polymerizing olefin monomer by using a novel coinitiator in the presence of water. More specifically, a method is provided for cationically polymerizing...
7196149 Polymerization of i-butane in hydrocarbon media using bis(borane) co-initiators  
A method is provided for cationically polymerizing olefin monomer by employing the step of using a novel coinitiator in an organic phase or a neat monomer reaction phase. More specifically, a...
7041760 Process for production of butyl rubber  
The present invention relates to a process for producing polymers containing repeating units derived from at least one isoolefin monomer, optionally repeating units derived from at least one...
6992155 Method for producing magnetic particle, magnetic particle and magnetic material  
A method for producing a magnetic particle forming a magnetic material for absorbing electromagnetic waves comprises the steps of mixing an organometallic complex or a metal salt with a chain...
6884859 Ring-opening metathesis polymerization of bridged bicyclic and polycyclic olefins containing two or more heteroatoms  
A method is provided for synthesizing a polymer in a controlled fashion using a ring-opening metathesis polymerization (ROMP) reaction, wherein polymerization is carried out using a catalytically...
6864325 Romp with oligomeric UV-absorbers  
The invention relates to metathesis polymers wherein an aromatic group that has UV-light absorbing properties is attached with a bridge group to the polymer. Also disclosed is a polymerizable...
6803429 Selective ring-opening cross-metathesis of cycloolefins  
A catalytic method is provided for a ring-opening cross-metathesis reaction between a cycloolefinic substrate and a second olefinic reactant, wherein the catalyst used is a transition metal...
6800705 Catalytic system, its method for preparation and method for preparation of a copolymer of ethylene and a conjugated diene  
The present invention provides to a catalytic system, its method for preparation, and a method for preparation of a copolymer of ethylene and a conjugated diene, which uses this catalytic system....
6800582 Process of preparation of amino functionalized diene polymers, polymers of such type, rubber composition and tire casing containing those polymers  
The present invention provides a process for preparing amino functionalized diene polymers with 1,4-trans linkage content equal to or greater than 70%. The invention also concerns polymers of such...
6787661 Tin-containing organolithium compounds and preparation thereof  
The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1): R4−xSn(Ya—Zm—Yb—Li)x...
6624265 Ruthenium metal alkylidene complexes coordinated with triazolylidene ligands that exhibit high olefin metathesis activity  
The invention discloses ruthenium alkylidene complexes of the type (PCy3)(L)Cl2Ru(CHPh), where L is a triazolylidene ligand of the general formula: These catalysts have been found to be...
6583247 Process for producing free radical polymerized copolymers  
Process for the copolymerization of free radical polymerizable comonomers such as vinyl acetate with an unsaturated diester such as diakyl fumarate which is carried out in the presence of water to...
6437187 Compounds having an ionic structure used as constituent of an olefin polymerization catalyst  
Novel chemical compounds have an ionic structure and in combination with an organometallic transition metal compound form a catalyst system which is advantageously used for the polymerization of...
6399727 Heteroleptic alkaline-earth metal compounds and methods for carrying out stereoselective anionic polymerization  
Polymerization initiator comprising an alkaline earth metal compound chosen from the group a) of heteroleptic alkaline earth metal compounds of the formula IL—M—R (I) orb) of cationic alkaline...
6291389 Cationic polymerization catalysts  
A cationic catalyst composition comprising a reactive cation and a compatible non-coordinating anion is preferably used at a temperature of 20° C. or less to produce olefin polymers, particularly...
6255420 Start-up process for gas phase production of polybutadiene  
A process for starting a polymerization of butadiene to produce polybutadiene in a gas phase reactor having a seed bed which comprises (i) passivating the reactor and the seed bed by introducing...
6143851 Process for preparation of addition products of difunctional telechelic polyolefins from cyclic olefins by olefin metathesis reaction  
A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves...
6107408 Processes for improving linking efficiencies in the synthesis of star polymers  
Processes for the synthesis of star or multi-branched polymers and the resultant polymers. One or more alkadiene monomers are polymerized in the presence of suitable organometallic initiators and...
6008307 Process for producing olefin polymers using cationic catalysts  
A cationic catalyst composition comprising a reactive cation and a compatible non-coordinating anion used at a temperature of 20° C. or less to produce olefin polymers, particularly...
5977393 Schiff base derivatives of ruthenium and osmium olefin metathesis catalysts  
The present invention generally relates to ruthenium and osmium carbene catalysts for use in olefin metathesis reactions. More particularly, the present invention relates to Schiff base...
5973086 Process for the living anionic polymerization of alkyl (methacrylic) monomers using a novel initiator system  
A process for the living anionic polymerization of alkyl(meth)acrylic monomers, involving polymerizing the monomers in the presence of an initiator comprising a carbanion and a metal or nonmetal...
5936029 Macrocyclic polymers having low hysteresis compounded properties  
The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties....
5877336 Synthesis of tributyltin lithium  
Triorgano substituted-tin lithium initiators are made in a dimethyl ether solvent. The substitution of dimethyl ether as the solvent for the traditional tetrahydrofuran solvent results in an...
5847055 Polymer-containing catalyst systems  
A catalyst system of the formula I X M (Z1)zs (Z2)zs (Z3)zs Iwhere X is C1 -C10 -alkyl, 5- to 7-membered cycloalkyl, C1 -C10 -alkoxy, C6 -C15 -aryl or a compound of the formula II ##STR1## where...
5744560 Metal accelerated polymerization processes  
A free radical polymerization process for the preparation of a polymer comprising heating a mixture of a free radical initiator, a stable free radical agent, a metal catalyst, or a metal stable...
5700888 Synthesis of macrocyclic polymers having low hysteresis compounded properties  
The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties....
5677399 Synthesis of macrocyclic polymers with group IIA and IIB metal cyclic organometallic initiators  
The invention is a practical process for anionically synthesizing commercially significant quantities of macrocyclic polymers from polar and/or non-polar monomers by using Group IIA and IIB metal...
5665827 Synthesis of multiblock polymers using group IIA and IIB metal cyclic organometallic initiators  
The invention is a practical process for anionically synthesizing multiblock polymers containing a plurality of blocks formed from polar and/or non-polar monomers by using a cyclic organometallic...
5616664 Polymerization process with biscyclopentadienyl diene complex containing catalysts  
Olefins are polymerized by the use of catalysts comprising biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal...
5602219 Process for preparing cycloolefin copolymers  
Transparent cycloolefin copolymers having a high tensile strength are obtained by polymerization of a polycyclic olefin, ethylene and, if desired, an acyclic olefin and/or a monocylcic olefin in...
5508363 Preparation process of organosilicon compounds and production of silicon carbide  
Disclosed herein are a novel process for the preparation of alkylsilanes and alkenyl silanes by hydrosilylation of their corresponding silanes and unsaturated hydrocarbons in the presence or...
5498679 Process for producing telechelic, branched and star thermoplastic resin polymers  
A free radical polymerization process for the preparation of a thermoplastic resin or resins includes heating a mixture of a multifunctional nitroxide compound and at least one polymerizable...
5319011 Compositions and method for catalytic curing of cyanoacrylate polymers  
A method is disclosed for the catalytic polymerization of cyanoacrylate monomers by contacting said monomers with an organotin compound. Also included is a polymerizable system comprising...
5312881 Method for catalytic polymerization of substituted acrylates  
The synthesis, and use as catalysts of chiral organolanthanide complexes for polymerization of substituted acrylates are disclosed, having the structure [(C5 R'4-x R*x) A (C5 R"4-y R'''y) M Qp ]m,...

Matches 1 - 50 out of 197 1 2 3 4 >