摘要:
An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers.
摘要:
An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers.A copolymer of the invention is obtained by copolymerizing at least ethylene and a conjugated diene. In the copolymer, structural units derived from the conjugated diene represent 1 to 90 mol %. Structural units resulting from 1,2-addition of the conjugated diene and having a side-chain double bond represent 0 to 90 mol %, structural units resulting from 1,4-addition of the conjugated diene represent 0 to 3 mol %, structural units resulting from 1,3-addition of the conjugated diene represent 0 to 3 mol %, and the total of structural units resulting from 1,2-addition of the conjugated diene and having a 1,2-cyclopropane skeleton and structural units resulting from 1,2-addition of the conjugated diene and having a 1,2-cyclopentane skeleton represent 4 to 100 mol %.
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:
Ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity are provided, in which requirements (A) to (E): (A) The intrinsic viscosity [η] measured in decalin at 135° C. is in the range of 0.1 to 50 dl/g, (B) at least 95 wt % or more of particles pass through a mesh screen with an opening of 37 μm, (C) the median diameter (d50) measured by laser diffraction scattering is 3 μm≦d50≦25 μm, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less. Non-agglomerated spherical magnesium-containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles are also provided.
摘要:
Ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity are provided, in which requirements (A) to (E): (A) The intrinsic viscosity [η] measured in decalin at 135° C. is in the range of 0.1 to 50 dl/g, (B) at least 95 wt % or more of particles pass through a mesh screen with an opening of 37 μm, (C) the median diameter (d50) measured by laser diffraction scattering is 3 μm≦d50≦25 μm, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less. Non-agglomerated spherical magnesium-containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles are also provided.
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:
To provide capsular fine particles comprising an olefinic polymer which have a uniform particle size distribution and a uniform particle size, and which are spherical and free from the coagulation between particles. Capsular fine particles comprising the olefinic polymer, of which the ratio (L/M) of the outer diameter (L) to the inner diameter (M) is 1.1 to 6.0, and the average diameter is 0.6 to 40 μm.
摘要:
Ethylene-based resin, which exhibits a satisfactorily high melt tension and can provide a molded object excellent in mechanical strength, the ethylene-based resin characterized in simultaneously satisfying the requirements [1] to [5] described below: [1] melt flow rate (MFR) under a loading of 2.16 kg at 190° C. is in the range of 0.1 to 100 g/10 minutes; [2] density (d) is in the range of 875 to 970 kg/m3; [3] ratio [MT/η*(g/P)] of melt tension [MT(g)] at 190° C. to shearing viscosity [η*(P)] at 200° C. at an angular velocity of 1.0 rad/sec. is in the range of 1.50×10−4 to 9.00×10−4; [4] sum [(A+B)(/1000C)] of the number of methyl branches [A(/1000C)] and the number of ethyl branches [B(/1000C)] per 1000 carbon atoms measured by 13C-NMR is 1.8 or less; and [5] zero shear viscosity [η0(P)] at 200° C. and weight-average molecular weight (Mw) measured by GPC-viscosity detector method (GPC-VISCO) satisfy the following relational expression (Eq-1): 0.01×10−13×Mw3.4≦η0≦4.5×10−13×Mw3.4 (Eq-1).
摘要:
To provide capsular fine particles comprising an olefinic polymer which have a uniform particle size distribution and a uniform particle size, and which are spherical and free from the coagulation between particles. Capsular fine particles comprising the olefinic polymer, of which the ratio (L/M) of the outer diameter (L) to the inner diameter (M) is 1.1 to 6.0, and the average diameter is 0.6 to 40 μm.
摘要:
An ethylene-based polymer which is a copolymer obtained from ethylene and a C3 to C10α-olefin and satisfies the following requirements (i), (ii), (iii) and (iv) simultaneously provides a blow-molded product and an extrusion-molded product excellent in moldability, mechanical strength and outward appearance. (i) melt flow rate [MFR2 (g/10 min)] under a loading of 2.16 kg at 190° C. is in the range of 0.01 to 10, (ii) melt tension [MT (g)] and the above melt flow rate [MFR2 (g/10 min)] satisfy the following relationship: MT≧3.2×MFR2−0.55, (iii) an activation energy [Ea] of fluidization is less than 30 (KJ/mol), and (iv) swell ratio is 1.36 or more. The ethylene-based polymer of the invention is preferably produced by copolymerizing ethylene with a C3 to C10 α-olefin, in the presence of a solid catalyst carrying, on (C) a solid carrier, a mixed transition metal compound consisting of (A1) a group 4 transition metal compound containing a specific salicyl aldimine ligand and (A2) a group 4 transition metal compound containing a specific cyclopentadienyl ligand and (B) at least one compound selected from (b-1) an organometallic compound, (b-2) an organoaluminum oxy compound, and (b-3) a compound reacting with the transition metal compound to form an ion pair.