| Document |
Document Title |
|
JP2002520455A |
Conjugated diolefins, optionally in combination with other unsaturated compounds which may be copolymerized with the diolefins, are polymerized by performing the polymerization of the diolefins in the presence of catalysts based on cobal...
|
|
JP3285657B2 |
PURPOSE: To prepare a brominated chlorine-substd. poly-1,3-butadiene without using any ecologically or toxicologically unsafe solvent. CONSTITUTION: The brominated chlorine-substd. poly-1,3-butadiene is prepared by reacting an aq. chlori...
|
|
JP3274978B2 |
To provide a method for producing polybutadiene rubber latex having a large particle diameter at a specific prescribed temperature and solid compound, by which the polymerization period is shortened and the productivity is improved. This...
|
|
JP3232113B2 |
Trans-1,4-polybutadiene is a thermoplastic resin by virtue of its high level of crystallinity. Because trans-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and cocured with rubbers. Even though trans-1,4-...
|
|
JP2001515931A |
A process for the preparation of a 1,2-vinyl-polybutadiene with an adjustable amount of vinyl linkages in the microstructure of the polymer which comprises polymerizing 1,3-butadiene in a gas phase reactor under polymerization conditions...
|
|
JP3205614B2 |
PURPOSE: To obtain a diene polymer and copolymer capable of providing an elastomer composition for tire treads having low rolling resistance and good traction properties by terminating the ends of a living polymer according to reaction w...
|
|
JP2001213917A |
To provide a novel trans-1,4-polybutadiene having a relatively wide molecular weight distribution, a method for manufacturing the same, and a method for controlling the molecular weight of the same.The trans-1,4-polybutadiene is characte...
|
|
JP3192176B2 |
Pure syndiotactic 1,2-polybutadiene is a thermoplastic resin which has double bonds attached in an alternating fashion to its polymeric backbone. Films, fibers and molded articles can be made utilizing syndiotactic 1,2-polybutadiene. It ...
|
|
JP3172531B2 |
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 crystallizabl...
|
|
JP2001131139A |
To obtain a new optically active high polymer having specific functions and to provide a method for producing the high polymer. This optically active allene compound is represented by general formula (I) (wherein R1 is an optically activ...
|
|
JP2001131464A |
To provide a paint composition with yields a coating with excellent weatherability, adhesion and overcoating properties and which gives a coating enough hydrophilicity to reduce the stain of the coating and does not form foams in the coa...
|
|
JP2001122920A |
To obtain a butadiene polymer having a narrow molecular weight and a high 1,4-cis bond content and to provide a method for producing the butadiene polymer. This butadiene polymer having ≤1.5 Mw/Mn and ≥96 mol% 1,4-cis bond content is...
|
|
JP2001122919A |
To provide a new method for producing a trans-1,4-polybutadiene by using a catalytic system having improved polymerization activity. This method for producing a trans-1,4-polybutadiene is characterized in that a catalyst comprising (A) a...
|
|
JP2001106833A |
To provide a pneumatic tire having excellent properties. Provided is a pneumatic tire containing a rubber member, wherein the member contains 100 pts.wt. (a) at least one elastomer containing olefinic unsaturations and 1-20 phr of (b) a ...
|
|
JP3124029B2 |
Hexafluorobutadiene prepolymer of formula R-(CF2-CF=CF-CF2)n-H (where n is 4-6,000 and R is F or a residue of an anionic polymerisation initiator). Pref. a polymer where n is 10-1,000. A polymerisation process for hexafluorobutadiene CF2...
|
|
JP2001002837A |
To provide a flexible polyolefin foam without detriment to characteristics which it has already acquired by introducing a polybutadiene having a specific microstructure different from that of a conventional polybutadiene into a polyolefi...
|
|
JP3115904B2 |
Trans-1,4-polybutadiene is a thermoplastic resin rather than a rubber at room temperature by virtue of its high degree of crystallinity. Because trans-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and co...
|
|
JP2000327721A |
To provide polybutadiene comprising a specific high mol.wt. polybutadiene and a specific low mol.wt. polybutadiene, and to provide a method for producing the polybutadiene in which polymerization activity. This polybutadiene comprises th...
|
|
JP3110687B2 |
An apparatus for removing monomers from a solid olefin polymer containing the monomers which comprises a purge vessel having tapered wherein the vessel has a height-to-bottom-diameter ratio of 0.5:1 to 10:1 and the walls have a tapered a...
|
|
JP3100117B2 |
A process is provided for preparing a terminally functionalized polymer from a living polymer obtained by anionic polymerization of a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer which comprises re...
|
|
JP3073509B2 |
In a process for producing cis-1,4-polybutadiene by polymerizing 1,3-butadiene in an inert organic solvent in the presence of a catalyst comprising a halogen-containing organoaluminum compound, a transition metal compound and water, the ...
|
|
JP2000212227A |
To produce a 1,2-polybutadiene as a thermoplastic elastomer which allows no generation of mold stains, thermal degradation nor change in physical properties with time at high-temperature molding and exerts excellent properties such as mo...
|
|
JP3070156B2 |
|
|
JP2000178310A |
To control the molecular weight and/or molecular weight distribution of a vapor- phase-polymerized high cis-1,4-polybutadiene by regulating at least one factor selected from among a polymerization temperature, the partial pressure of but...
|
|
JP2000128923A |
To obtain a monodisperse polymer having a narrow molecular weight distribution by polymerizing a conjugated diene monomer in the presence of a radical polymerization initiator and a specific transition metal compound. (A) A conjugated di...
|
|
JP3040172B2 |
A new polymerization process (atom transfer radical polymerization, or ATRP) based on a redox reaction between a transition metal (e.g., Cu(I)/Cu(II), provides "living" or controlled radical polymerization of styrene, (meth)acrylates, an...
|
|
JP2000119325A |
To provide a method for producing a syndiotactic 1,2-polybutdiene and to produce a catalyst composition based on ion therefor.This catalyst composition suitable for use when polymerizing 1,3-butadiene and producing a syndiotactic 1,2-pol...
|
|
JP3032373B2 |
PURPOSE: To obtain a polybutadiene compsn. which is useful as a rubber component for preparing a high-impact polystyrene resin excellent in gloss and impact strength by compounding a linear polymer with a specific radial polymer and spec...
|
|
JP3014410B2 |
|
|
JP2000044632A |
To produce an efficiently producible polybutadiene capable of manifesting a low molecular weight and a narrow distribution of the molecular weight and useful as a modifier, etc., for rubbers by limiting the contents of a cis-1,4-configur...
|
|
JP2990161B2 |
High vinyl polybutadiene rubber is utilized in a variety of applications. For instance, high vinyl polybutadiene is utilized in tire tread rubber compositions because it provides both good traction and rolling resistance. The present inv...
|
|
JPH11322850A |
To obtain a polybutadiene having a microstructure of a high cis- structure, a proper 1,2-structure and a slight trans-structure and high linearity of molecule and to provide a method for producing the polybutadiene. This polybutadiene ha...
|
|
JP2973457B2 |
|
|
JP2973459B2 |
|
|
JPH11293037A |
To obtain a stabilized composition by admixing a substituted benzoic acid with a syndiotactic 1,2-polybutadiene thereby deactivating a synthetic catalyst. A substituted benzoic acid of the formula is employed. In the formula, R1 represen...
|
|
JP2964256B2 |
The processability of a polybutadiene with a high content of 1,4-cis-structure is improved by means of the addition of PCl3 before the polymerization reaction is quenched and when Mooney viscosity of polybutadiene has reached a prefixed ...
|
|
JPH11279334A |
To stabilize a rubbery polymer being a trans-1,4-polybutadiene against undesired oxidative crosslinking leading to gelation during storage by adding thereto a specified substituted benzoic acid. Five to 30 wt.%, desirably, 15-20 wt.% but...
|
|
JPH11511202A |
The invention features a method for preparing telechelic 1,3-diene oligomers that consists in effecting the free radical polymerization of at least one 1,3-diene with a heat sensitive polymerization initiator such as hydrogen peroxide in...
|
|
JPH11255817A |
To provide a method for producing a syndiotactic 1,2-polybutadiene having syndiotacticity of more than 66.5% and a melting point above 100°C. The method comprises polymerizing 1,3-butadiene in a hydrocarbon solvent in the presence of a ...
|
|
JPH11236411A |
To obtain a mixture of a high-molecular weight polybutadiene component and a low-molecular weight polybutadiene component in a high polymerization activity, useful as a rubber component for an impact-resistant polystyrene- based resin, b...
|
|
JPH11217465A |
To obtain a composition useful as a resin modifier which, when added to a resin, improves its low-temperature impact resistance and thermal deterioration resistance by incorporating a specified amount of a conjugated diene rubber having ...
|
|
JP2930328B2 |
This invention reveals a technique for preparing syndiotactic 1,2-polybutadiene latex. It more specifically discloses a process for synthesizing syndiotactic 1,2-polybutadiene latex by polymerizing 1,3-butadiene in an aqueous medium in t...
|
|
JP2913318B2 |
PURPOSE:To obtain the title composition improved in frictional resistance on a snowed or iced road surface without detriment to its frictional resistance on a dry road surface by mixing a specified butadiene polymer with a rubber in a sp...
|
|
JPH11164912A |
To provide a solid golf ball having improved carry, durability and ball hitting feel and a rubber compsn. which allows the production of the same. This compsn. contains 50 to 100 pts.wt. component (a), polybutadiene rubber having a 1, 4-...
|
|
JP2854888B2 |
High vinyl polybutadiene rubber is utilized in a variety of applications. For instance, high vinyl polybutadiene is utilized in tire tread rubber compositions because it provides both good traction and rolling resistance. The present inv...
|
|
JP2847521B2 |
|
|
JP2843679B2 |
PCT No. PCT/AU94/00433 Sec. 371 Date Jan. 26, 1996 Sec. 102(e) Date Jan. 26, 1996 PCT Filed Jul. 29, 1994 PCT Pub. No. WO95/04026 PCT Pub. Date Feb. 9, 1995Compounds of general formula (I) (I) characterised in that R1 and R2 are independ...
|
|
JPH10330418A |
To obtain the subject polymer with controlled particle size by emulsion or suspension polymerization of 1,3-butadiene monomer in an aqueous medium in the presence of a catalytic component and a minute amount of oxygen to effect reducing ...
|
|
JP2836155B2 |
|
|
JPH10306117A |
To simply and easily obtain a syndiotactic 1,2-polybutadiene having at least two different melting points by polymerizing 1,3-butadiene in an aqueous medium in the presence of a catalyst composition obtained through the reaction of a spe...
|
