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WO/1995/016650A1 |
Alpha,omega-diene oligomers which are useful as synthetic lubricants are prepared by oligomerizing an alpha,omega-diene using an organoaluminum.
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WO/1995/015346A1 |
Low viscosity poly(isoprene)polymers bearing one or two terminal hydroxyl groups having a molecular weight from 1000 to 20000, a polydispersity less than 2. The anionic polymerization of isoprene with monolithium initiators and functiona...
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WO/1995/004026A1 |
Compounds of general formula (I) characterised in that R1 and R2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR4, C(O)NR5R6; X and Y are independently selected from the gr...
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WO/1995/004109A1 |
Aqueous dispersions which are particularly well suited for use as aqueous ink jet ink compositions having an aqueous carrier medium which comprises water or a mixture of water and at least one organic solvent; a particulate solid, prefer...
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WO/1994/020553A1 |
Hydrogenated butadiene polymers having terminal silyl groups are prepared from a (4-vinylphenylene)dimethyl(t-butyl)silyl ether which is added to the polymer chain as a silyl ether initiator or an endcapping agent, or both. The silyl gro...
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WO/1992/016568A1 |
The present invention relates to hydrogenated polybutadiene comprising monomeric units of 1,4-butadiene and 1,2-butadiene addition products. The copolymer is hydrogenated and comprises at least 10 % by weight of at least one crystallizab...
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WO/1991/007446A1 |
Anionically polymerizable monomers containing at least one silicon or titanium atom for polymeric photoresists for use in microlithography. The monomers are of formula (I), wherein A is -H or -CH=CH¿2?; X is a strong electron withdrawin...
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WO/1991/004284A1 |
New hexafluorobutadiene prepolymers of the following formula and hardenable material prepared therefrom: R-(CF2-CF=CF-CF2)n-H, wherein R represents fluorine or a residue of an anionic polymerization initiator, and n is 4 to 6,000. A mate...
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WO/1986/002931A1 |
1,3-pentadiene is polymerized from a mixture of saturated and unsaturated hydrocarbon compounds, the compounds having primarily 5 carbon atoms per molecule, with an anionic polymerization initiator. The mixture of saturated and unsaturat...
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JP7487117B2 |
There is a procedure for polymerisation in solution for the production of polymers. The procedure has the following steps: (A) continuously feeding one or more monomers, one or more solvents in a quantity comprised between 70% and 90% by...
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JP7484426B2 |
To provide a nitrile rubber composition capable of giving a rubber crosslinked product excellent in oil resistance, cold resistance and wear resistance.Provided is a nitrile rubber composition which contains: a carboxyl group-containing ...
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JP2023184528A |
To provide prophylactic devices, such as condoms, finger cots and polymeric gloves that are thin, strong and non-allergenic.A method for producing a polymeric article comprises: disposing on a former an elastomeric coating of a Ziegler-N...
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JP7404350B2 |
A method for manufacturing a polyisoprene, wherein it comprises a process of polymerizing isoprene under the presence of a polymerization catalyst composition containing a half metallocene cation complex represented by following general ...
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JP7376504B2 |
A polybutadiene composition which enables the achievement of a rubber material that has excellent crack propagation resistance and a method for producing this polybutadiene composition are provided. A polybutadiene composition is produce...
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JP2023147371A |
To provide a polybutadiene composition comprising a syndiotactic 1,2-polybutadiene and a cis-1,4-polybutadiene having high linearity, and further, to improve low fuel consumption while maintaining hardness in a rubber composition compris...
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JP7334965B2 |
Provided are: a polycarbonyl compound, and a derivative of said polycarbonyl compound. The polycarbonyl compound includes a chemical structure represented by formula (1n). Also provided are: a furan compound including a chemical structur...
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JP7317840B2 |
Process for the preparation of polyisoprene with a mainly alternating cis-1,4-alt-3,4 structure comprising polymerizing isoprene in the presence of a catalytic system comprising:(a) at least one pyridyl iron complex having general formul...
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JP7302968B2 |
Provide is a polymer that can provide excellent toughness and weather resistance to a rubber composition and a rubber product such as a tire. The multicomponent copolymer contains a conjugated diene unit, a non-conjugated olefin unit and...
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JP2023527177A |
A liquid polybutadiene, a method for producing the same and a use thereof, wherein the liquid polybutadiene has a number average molecular weight of 2500 to 5500, a molecular weight distribution index of 1 to 1.2, and a 1,2-structural un...
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JP7249845B2 |
To provide a new method for producing a granule and a new granule, which are excellent in dispersibility to a matrix resin and suppress occurrence of a foreign matter.A method for producing a granule that obtains a granule includes: a re...
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JP2023026909A |
To provide a film for an electronic apparatus and a printed circuit board that secures heat resistance and adhesion in an assembly process to achieve a low dielectric constant and a dielectric tangent.A film for an electronic apparatus h...
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JP7140212B2 |
A pneumatic tire having a tire component prepared by use of a rubber composition according to the present invention which comprises: a polybitadiene (i) which satisfies conditions of (A) a Mooney viscosity (ML 1+4, 100°C ) of 43 to 70, ...
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JP2022119431A |
To provide a polybutadiene composition capable of obtaining a rubber composition excellent in abrasion resistance and low-fuel consumption, and a production method of the same.A polybutadiene composition includes a high molecular weight ...
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JP7101813B2 |
The present invention relates to a method of separating an organic solvent which may easily separate and recover an organic solvent from a mixed solution containing the organic solvent, and an organic solvent separation system capable of...
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JP2022528320A |
The present invention relates to a modified conjugated diene-based polymer having excellent processability and excellent tensile strength and viscoelastic properties, and a rubber composition containing the same, and a unit derived from ...
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JP7031003B2 |
This rubber composition is characterized by containing: 100 parts by mass of a rubber component (A)+(B) that includes 1-50 parts by mass of a vinyl cis-polybutadiene rubber (A) containing 35-99 mass% of 1,2-polybutadiene having a melting...
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JP2022034108A |
To provide syndiotactic-1,2-polybutadiene particles in which a metal content is reduced and coloring is reduced, and a production method thereof, and to provide a washing method of syndiotactic-1,2-polybutadiene particles capable of obta...
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JP7027564B2 |
This vinyl cis-polybutadiene rubber is characterized by containing 35-99 mass% of 1,2-polybutadiene having a melting point of 150-195°C.
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JP7003570B2 |
To provide a rubber composition for studless tires which is mainly intended for use in a tread part of a studless tire and achieves both on-ice performance and wear resistance performance at a high level.The rubber composition for studle...
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JP6897162B2 |
To provide a rubber composition for tire, which shows excellent operation stability and rolling resistance performance when a tire is formed, and a pneumatic tire that uses the rubber composition for tire.A rubber composition for tire co...
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JPWO2019124223A1 |
To obtain a crosslinked molded article suitable for obtaining a crosslinked molded article by injection molding, which can shorten one cycle in injection molding and has less compression set. And to provide a crosslinked molded article w...
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JP2020532618A |
The polymeric article comprises an elastomer layer containing cured synthetic polyisoprene particles containing polyisoprene catalyzed by Ziegler-Natta. [Selection diagram] Fig. 1
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JP6784447B2 |
A process for preparing a blend of cis-1,4-polybutadiene and syndiotactic 1,2 polybutadiene, the process comprising the steps of (i) polymerizing 1,3-butadiene in the presence of a lanthanide-based catalyst to form a polymerization mixtu...
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JP2020164578A |
To provide a production method for an emulsified polymer capable of effectively in a short time, removing a scale adhered to the inside of a container for emulsion polymerization.A production method for an emulsified polymer in at least ...
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JP2020139171A |
To synthesize an interpolymer from various mers and/or preparable amounts of mers thereby preventing supply and price destruction of any of monomers.A method for preparing functionalized polymer comprises (a) preparing a catalyst composi...
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JP6701764B2 |
To provide a vinyl-cis-polybutadiene rubber that is excellent particularly in crack resistance, when formed into a rubber composition, and a method for producing the same.There is provided a vinyl-cis-polybutadiene rubber which is a viny...
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JPWO2019003744A1 |
A film molded product obtained by cross-linking a latex composition containing a polymer latex and sulfur, which is unreacted without being bonded to the polymer with respect to 100% by weight of the total amount of sulfur contained in t...
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JP2020063352A |
To provide a pneumatic tire having excellent cut resistance and Blooming resistance.A pneumatic tire is provided with an inner pad constituted from a rubber composition containing a rubber constituent containing a multi-component copolym...
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JP2020026440A |
To provide a polybutadiene rubber excellent in resilience while maintaining good processability.The polybutadiene rubber contains polybutadiene (A) satisfying conditions of branch degree of 3.5 or more, weight average molecular weight of...
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JP6631923B2 |
A process for preparing a blend of cis-1,4-polybutadiene and syndiotactic 1,2 polybutadiene, the process comprising the steps of (i) polymerizing 1,3-butadiene in the presence of a lanthanide-based catalyst to form a polymerization mixtu...
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JP2019206649A |
To provide a vinyl-cis polybutadiene rubber capable of improving tensile stress without damaging productivity even if a blending amount of carbon black is increased or a fiber or a resin is not compounded.A vinyl-cis-polybutadiene rubber...
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JP6612531B2 |
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JP6587782B1 |
An object of the present invention is to provide a heat-expandable microsphere capable of obtaining resin hollow particles capable of suppressing deformation such as tearing or denting of the outer shell against a high pressure load, and...
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JP6577482B2 |
The present invention relates to organic electronic devices, and more specifically to organic field effect transistors, comprising a dielectric layer that comprises a polycycloolefinic polymer with an olefinic side chain.
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JP2019151721A |
To provide a method for producing a 1,2-polybutadiene capable of mass-producing a 1,2-polybutadiene having a high melting point.There is provided a method for producing a 1,2-polybutadiene which comprises: a first step of polymerizing 1,...
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JP2019056073A |
To provide a vinyl-cis-polybutadiene rubber which can further improve a tensile stress without impairing workability without increasing carbon black and blending a fiber and a resin.A vinyl-cis-polybutadiene rubber is mainly composed of ...
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JP6450464B2 |
A represents a divalent nitrogen-containing saturated cyclic group (that may have a substituent) formed by removing two hydrogen atoms from piperidine or piperazine, a phenylene group that may have a substituent, or a trans-1,4-cyclohexy...
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JP6304163B2 |
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JP2018505918A |
A method for producing polyisoprene, which is a step of preparing a lanthanide-based catalyst preformed in the presence of 1,3-butadiene, and a polymerization mixture by introducing the preformed catalyst into isoprene. The step of formi...
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JPWO2016174875A1 |
A method for producing polyisoprene, which comprises polymerizing isoprene by using an isoprene-containing composition containing isoprene and an oxygen-containing neutral compound and a polymerization catalyst composition containing a r...
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