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WO/2021/107717A1 |
The present invention relates to a modified conjugated diene-based polymer and, more specifically, provides a modified conjugated diene-based polymer, which: is prepared by continuous polymerization so as to have a specific polymer struc...
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WO/2021/102202A2 |
Embodiments of the present disclosure are directed to functional polymers produced by copolymerization of at least one conjugated diolefin monomer and optionally one or more vinyl monomer, the functional polymer comprising at least one f...
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WO/2021/085616A1 |
A method for producing a modified conjugated-diene-based polymer, the method comprising: a polymerization step in which monomers including a conjugated diene compound are polymerized in the presence of an alkali metal compound or an alka...
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WO/2021/086039A1 |
The present invention relates to a modifier that is useful for polymer modification, a modified conjugated diene-based polymer having excellent affinity with a filler and improved mixing properties, and a preparation method therefor.
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WO/2021/079676A1 |
The present invention provides a rubber composition and a tire with which excellent performance persistency is obtained, and moreover, excellent low fuel-consumption performance and wet grip performance are obtained. The present inventio...
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WO/2021/074507A1 |
The invention relates to a method for bulk preparation of an epoxidised diene polymer in a tool for processing rubber, which method comprises at least two separate additions of a solid epoxidation agent. The method of the invention makes...
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WO/2021/066561A1 |
The present invention relates to a modified conjugated diene-based polymer, a method for producing same, and a rubber composition comprising same. The present invention relates to a modified conjugated diene-based polymer having a low hy...
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WO/2021/060833A1 |
The present invention relates to a method for producing a conjugated diene-based polymer, characterized by using a saponified dimer acid as an emulsifier in a polymerization initiation step and, following the initiation of polymerization...
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WO/2021/054630A1 |
The present invention pertains to a method for producing a diene-based rubber polymer, the method comprising: a step in which a diene-based monomer, a molecular weight modifier, an initiator, and an emulsifier are each charged for a firs...
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WO/2021/049377A1 |
The present invention provides a polymer composition which has good processability and is suitable for the production of a tire that has an excellent balance among rebound resilience, wet grip performance, low loss tangent and tensile st...
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WO/2021/049255A1 |
A polymer (A) having a structure unit (U1) derived from a monomer represented by formula (1) is included in the liquid crystal orientation agent. In formula (1), R1 represents a monovalent organic group, R2 and R3 each represent a single...
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WO/2021/044921A1 |
The purpose of the present invention is to provide a conjugated diene polymer which exhibits extremely excellent processability when formed into a vulcanized product, and which enables the achievement of a vulcanized product that has exc...
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WO/2021/045537A1 |
The present invention relates to a rubber composition having excellent abrasion resistance and improved viscoelastic properties by controlling compatibility between rubber components, and a tire manufactured using same. The present inven...
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WO/2021/005511A1 |
A process for high sulfur content copolymer preparation comprising reacting sulfur in solid form with at least one crosslinker selected from organic compounds containing at least a double or triple bond, in the presence of at least one c...
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WO/2020/262486A1 |
This catalyst comprises: at least one element X selected from the group consisting of groups 3-6 of the periodic table; and at least one element Z selected from the group consisting of group 14 elements, wherein in an X-ray diffraction p...
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WO/2020/262371A1 |
Provided are: a modified vinylaromatic copolymer having reactivity and solubility which make the copolymer usable in producing copolymer rubbers; and a copolymer rubber material obtained from the modified vinylaromatic copolymer and havi...
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WO/2020/262537A1 |
The present invention relates to a maleimide resin composition which contains: (A) one or more selected from the group consisting of a maleimide compound having two or more N-substituted maleimide groups and a derivative thereof; and (B)...
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WO/2020/249406A1 |
The invention relates to a method for producing an aqueous polymer dispersion by radically initiated aqueous emulsion polymerization, in which in an aqueous medium comprising (a) 40 to 75 parts by weight of at least one vinyl aromatic co...
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WO/2020/241251A1 |
A method for producing a chloroprene-based-polymer latex is provided in which a residual volatile organic substance can be efficiently removed from a chloroprene-based-polymer latex while inhibiting aggregates from precipitating. The met...
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WO/2020/235619A1 |
The present invention provides: a diene rubber which enables the achievement of a rubber composition or a crosslinked product, which has a good balance between ice grip performance and wet grip performance at high levels; a rubber compos...
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WO/2020/227531A1 |
Disclosed herein are a process for preparing a modified high-cis polybutadiene polymer, a modified high-cis polybutadiene polymer, and tire components made using the modified high-cis polybutadiene polymer. The processes make use of a fu...
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WO/2020/208901A1 |
The present invention addresses the problem of providing a novel polyisoprene capable of suppressing deterioration of the fuel-saving performance of a tire. This problem is solved by a polyisoprene characterized in that the vinyl bond co...
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WO/2020/189516A1 |
A sulfur-modified chloroprene rubber which has a functional group A that is represented by general formula (A) and is positioned at an end of the molecule, and which is configured such that: the mass ratio of the content of a functional ...
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WO/2020/175258A1 |
A rubber composition according to present invention contains: (A) a polymer having a carbon-carbon unsaturated bond wherein, defining p, q, r, and s as the respective compositional ratios (molar) of a structural unit represented by formu...
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WO/2020/160000A1 |
A process for preparing a polydiene having increased viscosity and reduced cold flow that includes polymerizing a conjugated diene monomer in the presence of a lanthanide-containing compound to form an intermediate polymer, and then addi...
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WO/2020/158751A1 |
[Problem] To provide a method for producing a conjugated diene polymer derived from a non-petrochemical material, which uses, as a starting material, an alcohol that is derived from a non-petrochemical starting material. [Solution] The p...
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WO/2020/158748A1 |
[Problem] To provide a novel and practically useful alcohol that has greater industrial value than existing petrochemical raw materials, and to provide a derivative product therefrom. [Solution] An ethanol that has at least one peak from...
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WO/2020/158747A1 |
[Problem] To provide a novel useful alcohol and a derivative thereof, which are industrially more valuable than conventional petrochemical raw materials. [Solution] An ethanol which contains an inorganic component and/or an organic compo...
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WO/2020/152906A1 |
Provided is a thermosetting resin composition which exhibits low water absorption and excellent reflow resistance properties without compromising heat resistance or moldability. This thermosetting resin composition contains a polyalkenyl...
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WO/2020/137525A1 |
The present invention relates to a method for producing a chloroprene polymer latex, which is characterized in that (B) a sodium salt of a formaldehyde naphthalene sulfonate condensation product and (C) sodium dodecylbenzenesulfonate are...
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WO/2020/130740A1 |
The present invention relates to a modified conjugated diene-based polymer having high linearity and improved mixing properties. The modified conjugated diene-based polymer according to the present invention contains a specific range of ...
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WO/2020/130741A1 |
The present invention provides a method for preparing a modified conjugated diene-based polymer, the method comprising adding, during modification, a polyoxyethylene phosphate ester-based compound having a specific structure, along with ...
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WO/2020/116037A1 |
Provided is a novel polybutadiene having a high isotacticity. This polybutadiene is characterized by having a triad isotacticity (mm) of not less than 72%.
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WO/2020/060147A1 |
The present invention relates to a method of preparing a conjugated diene-based polymer, the method comprising the step of initiating and conducting polymerization while continuously introducing conjugated diene-based monomers into a rea...
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WO/2020/045339A1 |
The present invention provides a method for producing a polymer latex, which comprises a step wherein an organic solvent is removed by distillation from an emulsion that is obtained by mixing an aqueous solution of an emulsifying agent w...
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WO/2020/031935A1 |
Provided are a curable resin mixture having excellent heat resistance and electrical characteristics and a curable resin composition thereof. This curable resin mixture has at least one of the cyclopentadiene structures represented by fo...
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WO/2020/013638A1 |
The present invention relates to a modified conjugated diene-based polymer and, more specifically, provides a modified conjugated diene-based polymer and a rubber composition comprising same, the modified conjugated diene-based polymer h...
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WO/2019/245287A1 |
The present invention relates to a modified polymerization initiator and a preparation method therefor, wherein the modified polymerization initiator can bear various intramolecular functional groups by comprising a unit derived from a c...
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WO/2019/224495A1 |
The present invention relates to a process for preparing a functionalised butadiene, characterised in that it comprises the following steps: (a) homopolymerising butadiene with a catalytic system based on at least one conjugated preformi...
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WO/2019/216645A1 |
The present invention relates to a modified conjugated diene-based polymer and a rubber composition comprising same, wherein the modified conjugated diene-based polymer according to the present invention has a narrow molecular weight dis...
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WO/2019/171981A1 |
Provided is a latex that comprises an acid-modified conjugated diene-based polymer, said acid-modified conjugated diene-based polymer being prepared by modifying a conjugated diene-based polymer with an acid group-containing compound, wh...
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WO/2019/156375A1 |
The present invention provides a method for producing a conjugated diene polymer, the method comprising the steps of: preparing a first polymer solution comprising a first conjugated diene polymer by solution polymerization of a first co...
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WO/2019/151672A1 |
The present invention relates to a method for preparing a conjugated diene-based polymer, and an apparatus for preparing same. More specifically, the method for preparing a conjugated diene-based polymer comprises the steps of: in a para...
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WO/2019/131677A1 |
The present invention relates to a fluorine-containing diene compound represented by general formula I, and to a polymer thereof. In the formula: R1 through R7 are each independently a hydrogen atom, a chlorine atom, a fluorine atom, or ...
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WO/2019/133338A1 |
Processes for carrying out a bulk polymerization are described as including the combination of an organic solvent with a polymerization mixture discharged from a polymerization vessel to extend the polymerization reaction downstream of t...
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WO/2019/133324A1 |
Processes for controlling temperature in polymerization reactions are described as including a monomer recovery system. Monomer vapor is removed from pressurized head space of a horizontally disposed reaction vessel, condensed to a liqui...
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WO/2019/133633A1 |
Vulcanizates with desirable properties such as reduced hysteresis and improved wear resistance can be obtained from a composition that includes particulate filler(s) and at least two types of terminally functionalized polymers. One type ...
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WO/2019/115470A1 |
The invention concerns a method for preparing a modified polymer comprising: - a step of anionic polymerisation of at least one diene monomer in the presence of a difunctional polymerisation initiator, in order to obtain a difunctional l...
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WO/2019/110915A1 |
The invention relates to a continuous method for producing a diene elastomer, comprising a polymerisation reaction of a catalyst system with at least one conjugated diene monomer to be polymerised in solution in a solvent, said catalyst ...
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WO/2019/103457A1 |
The present invention relates to a rubber composition comprising a conjugated diene polymer and having excellent tensile characteristics and viscoelastic characteristics. The rubber composition according to the present invention can sele...
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