摘要:
A process for producing a modified polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in a hydrocarbon solvent, in the presence of an alkali metal catalyst or a specified alkali metal compound, to form an alkali metal end-carrying active polymer, and (2) reacting the alkali metal end-carrying active polymer with a specified isocyanurate compound or a combination thereof with a specified coupling agent in a hydrocarbon solvent.
摘要:
Conjugated diene polymer is provided that comprises a constitutional unit based on a conjugated diene and a constitutional unit based on a compound represented by Formula (1) below: R1Si(—R2-A)mR33-m (1) wherein m represents an integer of 1 to 3; R1 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond; R2 represents a hydrocarbylene group, and, when there are plural R2s, R2s each may be the same or different; A represents a substituted amino group, and, when there are plural A's, A's each may be the same or different; R3 represents a hydrocarbyl group, a substituted hydrocarbyl group or a substituted amino group, and, when there are plural R3s, R3s each may be the same or different.
摘要:
The present invention provides a process for producing a conjugated diene-based polymer, comprising polymerizing a monomer component containing a conjugated diene compound and a silicon-containing vinyl compound using a polymerization initiator represented by the following formula (1) wherein, R11 represents a hydrocarbylene group having 6 to 100 carbon atoms, R12 and R13 represent a hydrocarbyl group optionally having a substituent, or a trihydrocarbylsilyl group, or R12 and R13 are bonded to represent a hydrocarbylene group optionally having, as a hetero atom, at least one kind atom selected from the atomic group consisting of a silicon atom, a nitrogen atom and an oxygen atom.
摘要:
Disclosed are a conjugated diene-based polymer from which a polymer composition excellent in fuel cost-saving properties and elongation at break can be obtained, a polymer composition containing the conjugated diene-based polymer and a reinforcing agent, and a process for producing the conjugated diene-based polymer. A conjugated diene-based polymer obtained by reacting one end of a polymer having a monomer unit based on a conjugated diene, a monomer unit based on a compound represented by the following formula (1), and a monomer unit based on a compound represented by the following formula (2) with an alkoxysilane compound. V1-S1 (1) wherein V1 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and S1 represents a substituted silyl group. V2-A2 (2) wherein V2 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond, and A2 represents a substituted amino group, or a nitrogen-containing heterocyclic group.
摘要:
Disclosed are a conjugated diene-based polymer from which a polymer composition excellent in fuel cost-saving properties and elongation at break can be obtained, a polymer composition containing the conjugated diene-based polymer and a reinforcing agent, and a process for producing the conjugated diene-based polymer. There is provided a conjugated diene-based polymer having a conjugated diene unit, a monomer unit based on a compound represented by the following formula (1) and a monomer unit based on a compound represented by the following formula (2). wherein R11 represents a hydrogen atom or a hydrocarbyl group, m is 0 or 1, R12 represents a hydrocarbylene group, and X1, X2 and X3 each independently represent a substituted amino group, or a hydrocarbyl group optionally having a substituent, provided that at least one of X1, X2 and X3 is a substituted amino group. wherein R21 represents a hydrogen atom or a hydrocarbyl group, n is 0 or 1, R22 represents a hydrocarbylene group, and A represents a substituted amino group, or a nitrogen-containing heterocyclic group.
摘要翻译:公开了一种共轭二烯类聚合物,其中可以获得具有优异的燃料成本节约性能和断裂伸长率的聚合物组合物,含有共轭二烯系聚合物和增强剂的聚合物组合物,以及制备共轭二烯系聚合物的方法 二烯基聚合物。 提供具有共轭二烯单元的共轭二烯系聚合物,基于下述式(1)所示的化合物的单体单元和基于下述式(2)表示的化合物的单体单元。 其中R11表示氢原子或烃基,m为0或1,R12表示亚烃基,X1,X2和X3各自独立地表示取代的氨基或任选具有取代基的烃基,条件是至少 X 1,X 2和X 3中的一个是取代的氨基。 其中R21表示氢原子或烃基,n为0或1,R22表示亚烃基,A表示取代氨基或含氮杂环基。
摘要:
There is provided a process for producing a modified diene polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in a hydrocarbon solvent, in the presence of an alkali metal catalyst, to form an alkali metal end-carrying active polymer, and (2) reacting the alkali metal end-carrying active polymer with a silane compound defined by a specific formula.
摘要:
A method for producing a conjugated diene polymer is provided that includes a step A of polymerizing a conjugated diene-containing monomer in a hydrocarbon solvent in the presence of an alkali metal catalyst, thus giving a polymer having a catalyst-derived alkali metal at one terminus of a polymer chain comprising a conjugated diene-based monomer unit, and a step B of reacting the polymer obtained in step A with a compound represented by the formula below. (In the formula, M denotes an oxygen atom or a sulfur atom, R1, R2, and R3 independently denote an alkyl group having 1 to 4 carbon atoms, m denotes an integer of 1 to 5, and n denotes an integer of 0 to 5.)
摘要:
A thermoplastic elastomer composition comprising 5 to 95 wt % of the following (A) and 5 to 95 wt % of the following (B), wherein the flowability index I according to a test for flow properties with a capillary rheometer is 1.35 or more: (A) an ethylene-&agr;-olefin copolymer having a tensile stress M100 measured according to JIS-K-6251 of 2.5 MPa or less, (B) a polyolefin-based resin having a tensile stress M100 measured according to JIS-K-6251 of 2.5 MPa or more.
摘要:
A propylene-.alpha.-olefin random copolymer composition for use in a laminated and oriented film. The composition includes: (A) from 75 to 95% by weight of a crystalline propylene random copolymer obtained by gas-phase polymerization of propylene and an .alpha.-olefin wherein the amount of components of the copolymer which are soluble in xylene at 20.degree. C. is less than 15% by weight, the propylene content is from 73 to 97% by weight, the .alpha.-olefin content is from 3 to 27% by weight, and (B) from 5 to 25% by weight of a propylene random copolymer of propylene and .alpha.-olefin, wherein the propylene content is from 50 to 60% by weight, and the .alpha.-olefin content is from 35 to 65 % by weight, wherein the amounts of components in the propylene-.alpha.-olefin random copolymer composition which are soluble in xylene at 20.degree. C. is less than 30% by weight.
摘要:
A method for purifying an ethylene-.alpha.-olefin olefin having at least 3 carbon atoms, or ethylene with an .alpha.-olefin having at least 3 carbon atoms and a nonconjugated diene compound, in a hydrocarbon solvent in the presence of a catalyst comprising a vanadium compound, an organoaluminum compound, and a halogenated ester compound, the method including a step of mixing and stirring the polymerization reaction mixture obtained by the polymerization reaction in an aqueous alkaline solution in such an amount as to give an aqueous phase having a pH of not lower than 10.0 after mixing and stirring, is disclosed. A method for purifying an ethylene-.alpha.-olefin copolymer is also disclosed, including a step of an oxidation treatment of the polymerization reaction mixture in an aqueous alkaline solution in such an amount as to give an aqueous phase having a pH of not lower than 10.0 after the oxidation treatment.