摘要:
[Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties.[Construction] A catalyst for olefin polymerization comprising (A) a transition metal compound represented by the following general formula (1); and (B) at least one compound selected from the group consisting of (B-1) organometallic compound, (B-2) organoaluminum oxy compound and (B-3) compounds capable of reacting with the transition metal compound (A) to form an ion pair: (M is a transition metal atom selected from Groups 4 to 6 of the periodic table; the two of R1 to R4, which are adjacent to each other, are combined to form a ring with the carbon atoms to which the two are bonded; groups of not forming a ring, R5 to R8, and X are each an atom or a group selected from a hydrogen atom, a halogen atom, a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing group, and a nitrogen-containing group; Q is —O—, —S—, —NRa—, or —PRb— (Ra and Rb are each a hydrogen atom or a hydrocarbon group); Y is a neutral ligand having an electron-donating group; m is a number satisfying the valence of M; and n is an integer of 0 to 3.).
摘要翻译:[任务]提供具有优异的烯烃聚合性能并能够生产具有优异性能的聚烯烃的烯烃聚合催化剂。 [构造]烯烃聚合用催化剂,其包含(A)由以下通式(1)表示的过渡金属化合物; 和(B)选自(B-1)有机金属化合物,(B-2)有机铝氧化合物和能够与过渡金属化合物(A)反应形成的(B-3)化合物的至少一种化合物,以形成 离子对:(M是选自元素周期表第4至6族的过渡金属原子;相互相邻的R 1至R 4中的两个被结合形成具有碳原子的环, 键合;不形成环的基团,R 5〜R 8和X各自为选自氢原子,卤素原子,烃基,卤代烃基,含氧基和 含氮基团; Q是-O - , - S - , - NR a - 或-PR b-(R a和R b各自是氢原子或烃基); Y是具有给电子基团的中性配体; m为满足M的化合价的数; n为0〜3的整数。
摘要:
[Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties. [Construction] A catalyst for olefin polymerization comprising (A) a transition metal compound represented by the following general formula (1); and (B) at least one compound selected from the group consisting of (B-1) organometallic compound, (B-2) organoaluminum oxy compound and (B-3) compounds capable of reacting with the transition metal compound (A) to form an ion pair: (M is a transition metal atom selected from Groups 4 to 6 of the periodic table; the two of R1 to R4, which are adjacent to each other, are combined to form a ring with the carbon atoms to which the two are bonded; groups of not forming a ring, R5 to R8, and X are each an atom or a group selected from a hydrogen atom, a halogen atom, a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing group, and a nitrogen-containing group; Q is —O—, —S—, —NRa—, or —PRb— (Ra and Rb are each a hydrogen atom or a hydrocarbon group); Y is a neutral ligand having an electron-donating group; m is a number satisfying the valence of M; and n is an integer of 0 to 3.).
摘要:
An α-olefin/non-conjugated cyclic polyene copolymer (A) includes structural units (I) derived from an α-olefin and structural units (H) derived from a vinyl group-containing cyclic olefin. The copolymer has a molecular weight distribution (Mw/Mn) of not more than 2.7 and is amorphous or low crystalline with a crystalline heat of fusion (ΔH) of less than 90 kJ/kg. The copolymer is efficiently produced using a specific transition metal catalyst that has a ligand with a phenoxyimine skeleton. The copolymer of the invention has a narrower molecular weight distribution and a higher content of vinyl groups as compared with existing copolymers. The copolymer can then give crosslinked products having excellent tensile properties. The copolymer is also used as a plasticizer for polymers such as rubbers, and provides excellent processability and superior mechanical strength and rubber elasticity of crosslinked products. By converting the vinyl groups in the copolymer to polar groups, various functional polyolefin materials are obtained.
摘要:
The invention has an object of providing a process for producing an ethylene/α-olefin/non-conjugated polyene copolymer with good polymerization activity and high conversion of non-conjugated polyene. The invention achieves the object by providing a process for producing an ethylene/α-olefin/non-conjugated polyene copolymer that comprises copolymerizing ethylene, an α-olefin and a non-conjugated polyene in a hydrocarbon solvent with use of a transition metal compound catalyst, and removing the unreacted monomers and the hydrocarbon solvent from the copolymer solution without removing the catalyst residue, wherein the copolymerization is carried out at a polymerization temperature of 100° C. or above and a polymerization pressure of 2.7 MPa or above in a manner such that the non-conjugated polyene concentration in the polymerization solution is less than the maximum non-conjugated polyene concentration Cmax (mol/L) indicated below: Cmax=0.050 (mol/L) when the copolymer has an iodine value (IV) of 9.0 g/100 g to less than 17.0 g/100 g; or Cmax=0.104 (mol/L) when the copolymer has an iodine value (IV) of 17.0 g/100 g or above.
摘要:
The invention provides a process using olefin polymerization catalysts exhibiting excellent polymerization activities. The olefin polymerization catalysts of the invention contain a transition metal compound typified by formula (I) and at least one of an organometallic compound, an organoaluminum oxy-compound or a compound which reacts with said transition metal compound to form an ion pair. The process using the inventive catalysts is useful in producing α-olefin/conjugated diene copolymers having specific properties
摘要:
The present invention provides an olefin polymer having a narrow molecular weight distribution and a specific molecular weight, an olefin polymer having a functional group introduced at the terminal, a tapered polymer containing a segment wherein monomer composition continuously changes in the polymer chain, an olefin polymer having different segments which are bonded to each other, and a process for preparing these polymers. The olefin polymers of the invention are polymers of olefins of 2 to 20 carbon atoms and have a number-average molecular weight of not less than 500 and Mw/Mn of not more than 1.5. In the process for preparing an olefin polymer, an olefin of 2 to 20 carbon atoms is polymerized in the presence of an olefin polymerization catalyst comprising a transition metal compound represented by, for example, the following formula (I): LmMXn (I) wherein M is a transition metal atom of Group 3 to Group 11 of the periodic table, m is 1 to 5, n is a number satisfying a valence of M, L is a ligand coordinated to the central metal M and is a ligand containing a heteroatom having no direct bond to the central metal, and X is a halogen atom, a hydrocarbon group or the like.
摘要:
The invention provides olefin polymerization catalyst exhibiting excellent polymerization activities, a process for olefin polymerization using the catalyst, a novel transition metal compound useful for the catalyst, and an &agr;-olefin/conjugated diene copolymer having specific properties. The olefin polymerization catalyst of the invention comprises (A) a transition metal compound of formula (I) or (II), and (B) an organometallic compound, an oranoaluminum oxy-compound or an ionizing ionic compound. The novel transition metal compound of the invention is a compound of formula (I) wherein M is a transition meal atom of Group 3 or 4 of the periodic table; m is an integer of 1 to 3; R1 is a hydrocarbon group, etc.; R2 to R5 are each H, a halogen, a hydrocarbon group, etc.; R6 is a halogen, a hydrocarbon group, etc.; n is a number satisfying a valence of M; and X is a halogen, a hydrocarbon group, etc.
摘要翻译:本发明提供了表现出优异聚合活性的烯烃聚合催化剂,使用该催化剂的烯烃聚合方法,用于催化剂的新型过渡金属化合物和具有特定性能的α-烯烃/共轭二烯共聚物。 本发明的烯烃聚合催化剂包含(A)式(I)或(II)的过渡金属化合物和(B)有机金属化合物,或者是含有氧化铝的氧化合物或离子化离子化合物。 本发明的新型过渡金属化合物是式(I)的化合物,其中M是周期表第3或4族的过渡膳食原子; m为1〜3的整数。 R 1是烃基等; R 2〜R 5各自为H,卤素,烃基等; R 6是卤素,烃基等; n是满足M价的数; X为卤素,烃基等
摘要:
Olefin polymer with narrow molecular weight distribution and specific molecular weight, olefin polymer having functional group introduced at terminal, tapered polymer containing segment wherein monomer composition continuously changes in the polymer chain, olefin polymer having different segments bonded to each other, and process for preparing these polymers. The olefin polymers are polymers of C2-20 carbon atom olefins and have a number-average molecular weight of ≧500 and Mw/Mn of ≦1.5. In syntheses, an olefin of 2-20 carbon atoms is polymerized in the presence of a catalyst comprising a transition metal compound represented by the formula LmMXn wherein M is a transition metal atom of Group 3-11, m is 1-5, n is a number satisfying a valence of M, L is a ligand—coordinated to the central metal M—which contains a heteroatom having no direct bond to the central metal, and X is e.g. halogen or a hydrocarbon.
摘要:
The present invention provides an olefin polymer having a narrow molecular weight distribution and a specific molecular weight, an olefin polymer having a functional group introduced at the terminal, a tapered polymer containing a segment wherein monomer composition continuously changes in the polymer chain, an olefin polymer having different segments which are bonded to each other, and a process for preparing these polymers. The olefin polymers of the invention are polymers of olefins of 2 to 20 carbon atoms and have a number-average molecular weight of not less than 500 and Mw/Mn of not more than 1.5. In the process for preparing an olefin polymer, an olefin of 2 to 20 carbon atoms is polymerized in the presence of an olefin polymerization catalyst comprising a transition metal compound represented by, for example, the following formula (I): LmMXn (I) wherein M is a transition metal atom of Group 3 to Group 11 of the periodic table, m is 1 to 5, n is a number satisfying a valence of M, L is a ligand coordinated to the central metal M and is a ligand containing a heteroatom having no direct bond to the central metal, and X is a halogen atom, a hydrocarbon group or the like.
摘要:
The invention provides a process using olefin polymerization catalysts exhibiting excellent polymerization activities. The olefin polymerization catalysts of the invention contain a transition metal compound of and at least one of an organometallic compound, an organoaluminum oxy-compound or a compound which reacts with said transition metal compound to form an ion pair. The process using the inventive catalysts is useful in producing α-olefin/conjugated diene copolymers having specific properties.