| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526173000 | Material contains elemental alkali metal, hydride thereof, or alkali metal to carbon atom bond (Li, Na, K, Rb, Cs, Fr) | 29 |
| 20080255330 | Organometallic-Polyisomonoolefin Block Copolymers - The present invention provides copolymers which include a plurality of constitutional units that correspond to at least one cationically polymerizable isomonoolefin species and a plurality of constitutional units that correspond to at least one anionically polymerizable monomer species selected from the group consisting of monomers of formula (I): | 10-16-2008 |
| 20100016530 | Lithium Reduction in Styrenic Polymers - This invention provides a process which comprises heating a lithium-containing mixture to one or more temperatures of at least about 90° C. and at one or more pressures sufficient to maintain substantially the entire mixture in the liquid phase. The lithium-containing mixture which comprises water, lithium ions, at least one liquid saturated hydrocarbon, and at least one styrenic polymer formed by anionic polymerization. The amount of water is at least about 10 wt % relative to the weight of the styrenic polymer, and the styrenic polymer has a weight average molecular weight of at least about 1000. | 01-21-2010 |
| 20100152399 | COPOLYMERS AS SCALE INHIBITORS - The present invention relates to copolymers which are obtainable from the free radical copolymerization of at least (a) a monoethylenically unsaturated carboxylic acid having 3 to 6 carbon atoms or the anhydride thereof with (b) a reaction mixture comprising a component of the general structural formula | 06-17-2010 |
| 20120196996 | Tapered Triblock Copolymers - A tapered triblock copolymer having controlled vinyl distribution, enlarged middle block with intermediate composition and microstructure, increased compatibility between its adjacent blocks, good processing characteristics and a peak average molecular weight between 25,000 and 300,000 is made by anionically polymerizing conjugated diene and monovinyl aromatic monomers, polar modifier and initiator to make a first block rich in conjugated diene, forming a second block that is a copolymer of the conjugated diene and the monovinyl aromatic monomer and which is less rich in the conjugated diene than the first block, and forming a third block that is a homopolymer of the monovinyl aromatic monomer. The first, second and third blocks comprise 30 to 60, 20 to 50 wt % and 10 to 40 wt % of the tapered triblock copolymer, respectively. The tapered triblock copolymers may be used as asphalt modifiers, adhesives, sealants, compatibilizers, reinforcing agents and impact modifiers. | 08-02-2012 |
| 20130090440 | LOW VINYL STYRENE-BUTADIENE POLYMERS AND METHODS OF MAKING THE SAME - The invention provides a process for the continuous polymerization of a polymer comprising monomeric units derived from styrene and 1,3-butadiene, said process comprising:
| 04-11-2013 |
| 20150038657 | PREPARATION PROCESS OF BRANCHED CONJUGATED DIENE POLYMER - There is provided a process for preparing a branched conjugated diene polymer by copolymerizing 1 to 100% by weight of a branched conjugated diene compound (1) monomer: | 02-05-2015 |
| 20160009832 | METHOD OF MANUFACTURING TERMINAL-MODIFIED POLYMER | 01-14-2016 |
| 526174000 | Contains at least two diverse alkali metal atoms, at least one of which is in the form of a free alkali metal, or in the form of a hydride, or has an alkali metal to carbon atom bond | 3 |
| 20090082534 | Diene elastomer with cyclic vinyl units and processes for obtaining same - The present invention relates to a linear or branched diene elastomer having cyclic vinyl units. A linear diene elastomer according to the invention results from at least one conjugated diene and it comprises cyclic vinyl units in a mass content of greater than or equal to 15% while having a number-average molecular weight falling within a range of from 10,000 to 300,000 g/mol. The invention also relates to a process for the production of such a linear or branched diene elastomer including cyclic vinyl units in the above-stated content and having a number-average molecular weight ranging from 10,000 to 300,000 g/mol, such that said process includes the continuous reaction of at least one conjugated diene monomer in an inert aliphatic or alicyclic hydrocarbon solvent with a catalytic system comprising an organolithium initiator, a polar agent having two or more heteroatoms and an alkali metal salt of an aliphatic or alicyclic alcohol, where:
| 03-26-2009 |
| 20100004414 | POLYMERS FUNCTIONALIZED WITH IMIDE COMPOUNDS CONTAINING A PROTECTED AMINO GROUP - A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with an imide compound containing a protected amino group. | 01-07-2010 |
| 20120004379 | Initiator system for synthesizing high-vinyl diene rubbers, a method for producing high-vinyl diene rubbers, and use thereof to produce high-vinyl diene rubbers - The present invention relates to an initiator system for synthesizing high-vinyl diene rubbers, to a method for producing diene homopolymers and diene copolymers having a high vinyl content at high polymerization temperatures, and to the use thereof to produce diene homopolymers and diene copolymers having a high vinyl content at high polymerization temperatures. | 01-05-2012 |
| 526175000 | Contains two or more separate chemical entities containing atoms of the same alkali metal, with at least one atom in elemental form, or in the form of a hydride, or has an alkali metal to carbon atom bond | 3 |
| 20090203861 | ANIONIC POLYMERIZATION METHOD FOR STYRENE DERIVATIVE CONTAINING PYRIDINE AS FUNCTIONAL GROUP - An anionic polymerization method for styrene derivative containing pyridine as functional group is provided. The method includes forming a complex of (vinylphenyl)-pyridine and lithium chloride and performing anionic polymerization. Accordingly, a polymer of styrene derivative containing pyridine can be obtained. The polymer has excellent optical properties, and its molecular weight and molecular weight distribution can be controlled. | 08-13-2009 |
| 20140296459 | METHOD FOR PRODUCING CONJUGATED DIENE-BASED POLYMER - Disclosed is a method for producing a conjugated diene-based polymer capable of affording a polymer composition useful as a material for tires excellent in fuel economy. Specifically, there is disclosed a method comprising polymerizing monomer components comprising a conjugated diene compound and an aromatic vinyl compound using an alkali metal-based polymerization initiator in the presence of a hydrocarbon solvent and an ether compound represented by the following formula (1), wherein R represents an alkyl group having 1 to 8 carbon atoms. | 10-02-2014 |
| 20160376395 | DILITHIUM INITIATORS - Disclosed herein are highly active dilithio initiators prepared from high molecular weight dienes (C≧6) and methods for the preparation of such compounds. These dilithio initiators result in greater control over polymer microstructure and provide useful polymers and oligomers with low vinyl incorporation. | 12-29-2016 |
| 526176000 | Contains heavy metal atom | 2 |
| 20080207858 | CATALYST, ITS PREPARATION AND USE - A process for preparing a catalyst which process comprises preparing a mixture comprising iron oxide and at least one Column 1 metal or compound thereof, wherein the iron oxide is obtained by heating a mixture comprising an iron halide and at least 0.05 millimoles of a Column 6 metal per mole of iron; a catalyst made by the above described process; an iron oxide composition; a process for the dehydrogenation of an alkylaromatic compound which process comprises contacting the alkylaromatic compound with the catalyst; and a method of using an alkenylaromatic compound for making polymers or copolymers, in which the alkenylaromatic compound has been produced by the dehydrogenation process. | 08-28-2008 |
| 20120130033 | POLYFARNESENES BY METAL-CATALYZED INSERTION POLYMERIZATIONS - Provided herein are polyfarnesenes such as farnesene homopolymers derived from a farnesene and farnesene interpolymers derived from a farnesene and at least a vinyl monomer; and the processes of making and using the polyfarnesenes. The farnesene homopolymer can be prepared by polymerizing the farnesene in the presence of a catalyst such as a Ziegler-Natta catalyst, a Kaminsky catalyst, a metallocene catalyst, an organolithium reagent or a combination thereof. In some embodiments, the farnesene is prepared from a sugar by using a microorganism. | 05-24-2012 |
| 526177000 | Contains aluminum atom | 1 |
| 20150038658 | METHOD FOR PRODUCING (METH)ACRYLATE COPOLYMER - [Object] To produce a (meth)acrylate copolymer useful as a photocurable resin composition at a temperature favorable to industrial production in a short time. | 02-05-2015 |
| 526178000 | Contains boron or silicon atom | 4 |
| 20090069520 | CATALYSTS FOR RADICAL POLYMERIZATION - Provided is a method for polymerizing a polymer precursor, comprising: contacting a polymer precursor with a lithium carborane catalyst and an initiator under polymerizing conditions. A reaction solvent may be used, but is not necessary. Also provided is a method of preparing lithium carborane polymers, comprising: contacting a lithium carborane polymer precursor having a terminal alkenyl or alkynyl group with an initiator and an optional reaction solvent under polymerizing conditions. Functionalized carborane anions are also provided. | 03-12-2009 |
| 20100093960 | Potassium Based Catalyst Systems For Synthesizing Rubbery Polymers - The present invention is directed to a catalyst system for synthesizing rubbery polymers, such as styrene-butadiene rubber, that can be utilized in tire tread rubbers. The catalyst system, in one embodiment, includes an organolithium compound and a potassium alkyl borohydride or potassium alkyl aluminum hydride defined by: (R) | 04-15-2010 |
| 20130281645 | Aminosilane Initiators And Functionalized Polymers Prepared Therefrom - Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer. A telechelic polymer may result from use of the metallated aminosilane compound as a functional terminator. | 10-24-2013 |
| 20160152756 | PROCESSES FOR PREPARING AMINOSILANE FUNCTIONALIZED POLYMERS | 06-02-2016 |
| 526180000 | Contains compound of nitrogen | 3 |
| 20090326176 | NOVEL MULTIFUNCTIONAL INITIATORS FOR ANIONIC POLYMERIZATION AND POLYMERS THEREFROM - The embodiments of the invention relate to a multifunctional lithiated amine-containing compound comprising at least two molecules of lithiated amine in a molecule of the compound. In one embodiment, the compound has a formula | 12-31-2009 |
| 20130345379 | High Styrene High Vinyl Styrene-Butadiene Rubber and Methods for Preparation Thereof - A process for polymerization of a polymer containing monomeric units derived from a styrene monomer and a 1,3-butadiene monomer includes polymerizing the monomeric units in the presence of an initiator, a first polar agent, and a second polar agent. The first polar agent includes a structure (I): R | 12-26-2013 |
| 20140309390 | Stabilized Multi-Valent Anionic Polymerization Initiators And Methods For Preparing The Same - A stabilized initiator solution comprising a multi-valent lithiated containing initiator and an aliphatic or cycloaliphatic solvent. | 10-16-2014 |
| 526181000 | Contains oxygen atom | 6 |
| 20110178257 | NOVEL OIL DISPLACEMENT AGENT AND PROCESS FOR PREPARING THE SAME - The present invention relates to a new type of oil displacement agent and the process for preparing the same. The oil displacement agent is formed of a polyaclylamide-based polymer characterized by a partly crosslinked and partly branched structure, wherein said polyacrylamide-based polymer is obtained by aqueous copolymerization of acrylamide and N,N-dimethylaminoethyl methacrylate as a functional monomer, in the presence of a redox initiator system. | 07-21-2011 |
| 20120016094 | REDOX-CURING TYPE COMPOSITION - The present invention provides a redox-curing type composition that penetrates into a wet body, particularly into a tooth structure (dentin), is cured in an accelerated manner by the moisture contained in the wet body, thereby exhibits a higher bond strength than those of conventional redox-curing type compositions, and has satisfactory storage stability. The present invention is a redox-curing type composition including a polymerizable monomer (a) having an acidic group, a polymerizable monomer (b) having no acidic group, a powdery inorganic peroxide (c) with an average particle diameter of 0.01 to 50 μm, an amine-based reducing agent (d), and a polymerization accelerator (e). The amine-based reducing agent (d) includes an aromatic amine (d−1) and an aliphatic amine (d−2), and a weight ratio (d−1):(d−2) therebetween is 5:1 to 1:50. | 01-19-2012 |
| 20120283401 | Process For Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension, drying the resulting polymer gel, and grinding and classifying the dried polymer gel, wherein the grinding is performed by means of a multistage roll mill, the first milling gap has a width of 500 to 5000 μm, the product mass flow passing through the first milling gap is conducted through a magnetic separator to the second milling gap, and the second milling gap has a smaller gap width than the first milling gap. | 11-08-2012 |
| 20130211025 | METHOD FOR THE PREPARATION OF STYRENIC FLUOROPOLYMERS - A method for the preparation of a fluoropolymer by means of emulsion polymerization of a reaction mixture in an aqueous medium is disclosed wherein the reaction mixture includes a fluoromonomer having the structure of | 08-15-2013 |
| 20130245217 | PROCESS FOR THE PREPARATION OF DIENE POLYMERS OF STATISTICAL VINYLARENE-DIENE COPOLYMERS - A process for the preparation of diene polymers or vinylarene-diene statistical (random) copolymers which comprises the anionic (cp) polymerization, in hydrocarbon solvents, of at least one monomer of a conjugated diene, optionally in the presence of a vinyl aryl monomer, and using a compound belonging to the group of lithium alkyls as initiator, characterized in that the total lithium alkyl initiator is modified in situ by means of a reaction with a compound having general formula (I): R | 09-19-2013 |
| 20160096912 | LOW VINYL STYRENE-BUTADIENE POLYMERS AND METHODS OF MAKING THE SAME - The invention provides a process for the continuous polymerization of a polymer comprising monomeric units derived from styrene and 1,3-butadiene, said process comprising:
| 04-07-2016 |
