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Matches 201 - 250 out of 5,666

Document Document Title
WO/2014/132898A1
The present invention produces a terminal-modified polymer by performing a polymerization reaction of a vinyl aromatic monomer and/or a conjugated diene monomer while in the presence of an anionic polymerization initiator, and thereafter...  
WO/2014/133096A1
Produced is a rubber composition which can improve low fuel consumption performance, processability and abrasion resistance at the same time in use applications including automotive tires. A modified conjugated diene polymer is produced ...  
WO/2014/132899A1
The present invention produces a terminal-modified polymer by performing a polymerization reaction of a vinyl aromatic monomer and/or a conjugated diene monomer while in the presence of an anionic polymerization initiator, and thereafter...  
WO/2014/125830A1
Provided is a polymerization catalyst composition that makes it possible to efficiently synthesize a polyisoprene having a high molecular weight. The isoprene polymerization catalyst composition is characterized by comprising: a rare ear...  
WO/2014/125829A1
Provided is a polymerization catalyst composition that makes it possible to efficiently synthesize a polyisoprene having a high molecular weight under industrial conditions without the occurrence of excessive gelling. The polymerization ...  
WO/2014/112411A1
A method for producing a polymer, which comprises carrying out a polymerization step of polymerizing at least a conjugated diene monomer in a hydrocarbon solvent using an organic lithium compound as a polymerization initiator to produce ...  
WO/2014/109232A1
Provided is a method for producing a hydrogenated unsaturated polyhydroxyhydrocarbon polymer capable of suppressing hydrogenolysis of the end hydroxyl groups and other such secondary reactions and achieving a high hydrogenation rate in a...  
WO/2014/104169A1
Provided is a method for producing a modified conjugated diene rubber which comprises a step of reacting a compound represented by general formula (I) with an active terminal of a polymer obtained by polymerizing a monomer that contains ...  
WO/2014/097199A1
Process for the preparation of ( co ) polymers of conjugated dienes which comprises polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one bis-imine complex of cobalt having general formu...  
WO/2014/097167A1
The present invention relates to an oxo-nitrogenated complex of cobalt having the general formula (I) wherein the residues R1, R2, R3, X1 and X2 are as defined in the claims. Said oxo-nitrogenated complex of cobalt having general formula...  
WO/2014/097245A1
Process for the preparation of (co) polymers of conjugated dienes which comprises polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one bis-imino-pyridine complex of cobalt having genera...  
WO/2014/086804A1
The present invention relates to a novel multicomponent preformed catalytic system based at least on: isoprene, or a rare earth metal salt of an organic phosphoric acid or of a carboxylic acid; a saturated or unsaturated inert hydrocarbo...  
WO/2014/075901A1
The present invention relates to a process for preparing polybutadiene, wherein butadiene is anionically polymerized in a tube reactor having an interfacial area of at least 200 m²/m³ using a solvent mixture comprising at least one non...  
WO/2014/074767A1
The present disclosure relates to the preparation and application of conducting polymers nanoparticle composites. Specifically, the disclosure relates to the preparation of polyaniline, or similar conducting polymers, as polymer nanopart...  
WO/2014/052957A1
A novel class of organometallic complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes.  
WO/2014/047356A1
This invention relates to a reaction product obtained by contacting a polymer comprising units derived from dicyclopentadiene with a vinyl terminated macromonomer, a vinyl monomer or a vinylene monomer, in the presence of a metathesis ca...  
WO/2014/042027A1
The purpose of the present invention is to provide an isoprene oligomer and polyisoprene in which a modification has been added to the main-chain moiety of the molecule. Also provided are a rubber composition obtained by blending the iso...  
WO/2014/037861A1
Process for the preparation of diene polymers or random vinyl arene-diene copolymers which comprises (co) polymerizing, anionically, in the presence of at least one hydrocarbon solvent, at least one conjugated diene monomer and optionall...  
WO/2014/017216A1
Provided are: a chloroprene rubber which does not easily adhere to a roll and provides a vulcanized product having excellent physical properties; a method for producing the chloroprene rubber; a chloroprene rubber composition; and a vulc...  
WO/2014/010249A1
 Provided are a polymer composition having the properties of natural rubber (durability (anti-fracture properties, abrasion resistance and anti-crack-growth properties), and a manufacturing method for same. A manufacturing method for...  
WO/2014/006007A1
The present invention relates to a process for continuous synthesis, in a highly concentrated medium, of diene elastomers with a high degree of conversion, which comprises the following simultaneous steps: a) continuously introducing, in...  
WO/2014/006830A1
Provided is a method for more efficiently and stably producing a polybutadiene which is capable of providing a rubber composition and a tire that have excellent durability (fracture resistance, wear resistance and crack propagation resis...  
WO/2014/000008A3
A stabilizer for polyolefins using phenolic antioxidants and the preparation thereof, where the phenolic antioxidants of the structural formula (I) are bound as side chains to a polymer, where X is [-CH2-Y-COCH=CH-], [-CH2-Y-CO-(CH2)p-] ...  
WO/2013/188632A1
This invention provides a method for shortstopping free radical polymerization reactions using combinations of N-isopropylhydroxylamine (IPHA) or salts thereof with either primary or secondary alkyl hydroxylamines, or with at least two p...  
WO/2013/186691A1
A process for the preparation of a functionalized and branched elastomeric copolymer comprising the following steps : (a) anionic copolymerization of at least one conjugated diene monomer and at least one vinyl arene, in the presence of ...  
WO/2013/184783A3
A method of making a polymer with stable Mooney viscosity and molecular weight is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxy s...  
WO/2013/178293A1
The invention relates to a method for polymerizing a diene, comprising the following steps: reacting the diene with hydrogen peroxide in a hydrophilic organic solvent in the presence of water forming a reaction mixture at temperatures of...  
WO/2013/179722A1
The invention provides a useful means for establishing an excellent isoprene monomer production system. Specifically, the invention provides polynucleotides and the like of (a), (b), or (c) below: (a) polynucleotide containing (i) a base...  
WO/2013/179651A1
Provided is a polymerization catalyst composition which enables efficient synthesis of a polyisoprene having a high molecular weight under industrial conditions without accompanying excessive gelation. A polymerization catalyst compositi...  
WO/2013/167411A1
The invention relates to diene polymers having, at the start of the polymer chain, tertiary amino groups of formula (I) or (II), wherein R1, R2 are identical or different and represent alkyl-, cycloalkyl-, aryl-, alkaryl- and aralkyl gro...  
WO/2013/167410A1
The invention relates to diene polymers or diene copolymers, said diene polymers or diene-copolymers having, at the start of the polymer chain, tertiary amino groups of formula (Ia), (Ib), (IIa) or (IIb), wherein R1, R2 are identical or ...  
WO/2013/168039A1
A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared...  
WO/2013/166124A1
Embodiments provide polydienes and diene copolymers having organophosphines functionality. Specific embodiments employ phosphorus-containing organometal initiators and copolymers prepared by anionically polymerizing conjugated diene mono...  
WO/2013/157272A1
Provided is a method with which it is possible to produce a polymer that is added with silica without a long kneading process. Also provided is a polymer composition which has a favorable low heat generation property. [Solution] With res...  
WO/2013/149233A1
A method of preparing a polymer, the method comprising: metalating an organophosphine compound in the substantial absence of monomer to form a metalated organophosphine; and introducing the metalated organophosphine to monomer including ...  
WO/2013/139378A1
The present invention relates to a process for the continuous preparation of modified elastomeric polymers, comprising the steps of (i) providing and polymerizing at least one conjugated diene monomer and, optionally, one or more aromati...  
WO/2013/138270A1
A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an organosulfide...  
WO/2013/132846A1
Provided are: a polymer with which a crosslinked rubber composition with improved durability (fracture resistance, abrasion resistance, and crack growth resistance) can be obtained and a method for producing the same; a rubber compositio...  
WO/2013/132849A1
This rubber composition comprises a rubber component, the rubber component being a synthetic polyisoprene or an isoprene copolymer, and containing at least a polymer with a gel fraction of 20% or less.  
WO/2013/132848A1
This polymer is a synthetic polyisoprene or an isoprene copolymer, and the number average molecular weight (Mn) by gel permeation chromatography (GPC) measurement is 1,500,000 or more.  
WO/2013/128977A1
Provided is a method for producing a branched conjugated diene polymer by copolymerizing 1 to 100 weight% of a branched conjugated diene compound (1) monomer (in the formula, R1 represents a C6-11 aliphatic hydrocarbon), 99 to 0 weight% ...  
WO/2013/129676A1
Provided are: a polychloroprene latex in which rubber aggregability is improved and with which it is possible to obtain a film having excellent strength by dip-molding; a polychloroprene latex composition; and a molded article. This poly...  
WO/2013/130522A1
Disclosed herein are solution polymerization processes for producing a high-cis polydiene. The processes include polymerizing at least one conjugated diene monomer in an organic solvent in the presence of at least one thiol compound and ...  
WO/2013/121960A1
The present invention provides a chloroprene polymer composition that is less prone to discoloration even when exposed to heat and light. Provided is a chloroprene rubber composition obtained by: performing emulsion polymerization in the...  
WO/2013/118766A1
To provide an ink composition for inkjet recording, which has excellent gloss and storage stability. An ink composition for inkjet recording of the present invention is characterized by containing a polymerizable compound (component A), ...  
WO/2013/105502A1
The present invention addresses the problem of providing a rubber composition for a tire, said rubber composition ensuring both satisfactory rolling resistance and satisfactory wear resistance when applied to a tire member such as tread....  
WO/2013/105370A1
Provided are: a sulfur modified chloroprene rubber that has excellent adhesiveness to core wires and reinforced fiber materials; a method for producing the same; and a molded body. A polymerization step of blending 0.1 to 2.0 parts by ma...  
WO/2013/101861A1
A process for preparing a polydiene, the process comprising the steps of: polymerizing conjugated diene monomer with a metallocene complex catalyst system within a polymerization mixture that includes less than 20% by weight of solvent b...  
WO/2013/092895A1
The invention relates to a "preformed" activated catalytic system for the stereospecific 1,4-cis polymerization of dienes conjugated base on at least one or more preformed conjugated diene monomers, one or more salts of one or more rare ...  
WO/2013/094629A1
A method for producing a modified conjugated diene polymer, which comprises: a step wherein a conjugated diene polymer is obtained by polymerizing monomers that include a conjugated diene compound or the like in the presence of an alkali...  

Matches 201 - 250 out of 5,666