Abstract:
A process for preparing 1-butene polymers, comprising polymerizing 1-butene or copolymerizing 1-butene with ethylene, propylene or an alpha-olefin of formula CHT 2 =CHT wherein T is a C 3 -C 10 alkyl group, in the presence of a catalyst system obtainable by contacting: A) a metallocene compound belonging to formula (I): wherein M is zirconium titanium or hafnium; X, equal to or different from each other, is a hydrogen atom, a halogen atom, a a hydrocarbon radical, optionally containing heteroatoms; R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 and R 13 are hydrogen atoms, or C 1 -C 4O hydrocarbon radicals optionally containing heteroatoms; R 1 , R 2 and R 3 , are linear or branched, C 1 -C 2o -alkyl radicals, optionally containing heteroatoms; B) a Jumoxane or a compound capable of forming an alkyl metallocene cation; and optionally C) organo aluminum compound.
Abstract translation:一种制备1-丁烯聚合物的方法,包括将1-丁烯或1-丁烯与乙烯,丙烯或式CHT 2 CH = CHT的α-烯烃聚合,其中T是C 3 在可以通过下述方法获得的催化剂体系存在下进行:A)属于式(I)的茂金属化合物:其中M是锆钛或铪; X,彼此相同或不同,是氢原子,卤素原子,烃基,任选地含有杂原子; R 4,R 5,R 6,R 7,R 8, R 9,R 10,R 11,R 12和R 13是 氢原子或任选含有杂原子的C 1 -C 40烃基; R 1,R 2和R 3是直链或支链的C 1 -C 2 O 任选地含有杂原子的烷基; B)可以形成烷基茂金属阳离子的Jumoxane或化合物; 和任选的C)有机铝化合物。
Abstract:
A process for obtaining atactic 1-butene polymer optionally containing at least one comonomer selected from ethylene, propylene or an alpha-olefin of formula CH2=CHR, wherein R is a linear or branched C3-C 20 alkyl group, comprising the step of polymerizing 1-butene and optionally ethylene, propylene or said alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) at least one metallocene compound of formula (I) in its meso or meso-like form wherein M is an atom of a transition metal; p is an integer from 0 to 3; X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group; L is a divalent C 1 -C 40 hydrocarbon radical optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; R' and R 2 , are C 1 -C 40 hydrocarbon radicals; T, equal to or different from each other, is a moiety of formula (IIa) or (Ilb) wherein R 3 is a C I -C 40 hydrocarbon radical; R 4 and R 6 , are hydrogen atoms or C 1 -C 40 hydrocarbon radicals; R 5 is a C I -C 40 hydrocarbon radical; R 7 and R 8 , equal to or different from each other, are hydrogen atoms or C 1 -C 40 hydrocarbon radicals; and b) an alumoxane or a compound capable of forming an alkyl metallocene cation.
Abstract:
A process for obtaining silicon-bridged metallocene compounds comprising the following steps: a) reacting, at a temperature of between 10° C and 70° C, the starting ligand with about 2 molar equivalents of an alkylating agent; b) after the reaction has been completed, adding at least 2 molar equivalents of an alkylating agent that can be also different from the first one; and c) reacting, at a temperature of between 10° C and 70° C, the product obtained from step b) with at least 1 molar equivalent of a compound of formula ML' s , wherein M is a transition metal; s is an integer corresponding to the oxidation state of the metal; and L' is an halogen atom selected from chlorine, bromine and iodine.
Abstract:
A 1-butene/propylene copolymer composition having a content of propylene derived units from 4 to 10% by weight, wherein at least 50% of the polymer is present in the thermodynamically stable, trigonal form I after 100 hours at room temperature, said composition comprising: a) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: i) isotactic pentads (mmmm) measured by 13 C-NMR, higher than 80%; ii) melting point (Tm(II)) higher than 70°C; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4.
Abstract:
A propylene-based terpolymer comprising: a) from 10.0% by mol to 79.0% by mol of propylene derived units; b) from 89.5% by mol to 20.5% by mol of 1 -butene derived units; and c) from 0.5% by mol to 15% by mol of derived units of alpha olefin of formula CH 2 =CHZ wherein Z is a C 4 -C 20 alkyl radical.
Abstract:
A 1-butene/propylene copolymer composition having a content of propylene derived units from 1 to 4% by weight, wherein at least 50% of the crystalline polymer is present in the thermodynamically stable, trigonal Form I (detected by DSC analysis) after 100 hours of the first melting at room temperature comprising: b) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: isotactic pentads (mmmm) measured by 13 C-NMR, higher than 80%; i) ii) melting point (Tm(II)) higher than 70°C; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4.
Abstract:
A solution polymerization process for obtaining isotactic, crystalline or crystallisable 1- butene/propylene polymers comprising contacting under polymerization conditions at a temperature ranging from 500C to 900C 1 -butene and propylene in the presence of a catalyst system obtainable by contacting: a) at least one metallocene compound; b) an alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the polymerization medium consists of a mixture of 1-butene and propylene wherein the content of propylene in the liquid phase ranges from 1% to 60% by weight.
Abstract:
An organometallic compound obtainable by contacting: a compound having the following formula (I), wherein: R a is a hydrocarbon radical; R b , R ° and R d , are hydrogen atoms, halogen atoms, or hydrocarbon radicals; with a Lewis acid of formula (II) MtR 1 3 (II) wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R l are selected from the group consisting of halogen atoms, halogenated C 6- C 20 aryl and halogenated C 7 -C 20 alkylaryl groups.
Abstract translation:通过使具有下式(I)的化合物接触而获得的有机金属化合物,其中:R a是烃基; R b,R o和R d分别是氢原子,卤素原子或烃基; 与式(II)的路易斯酸MtR 1(II)其中Mt是属于元素周期表第13族的金属; R 1选自卤素原子,卤代C 6 -C 20芳基和卤代C 7 -C 20烷基芳基。
Abstract:
A metallocene compound of formula (I): wherein M is zirconium, titanium and hafnium; X is a hydrogen atom, a halogen atom or a hydrocarbon radical; R 1 is a linear C 1 -C 20 -alkyl radical; R 2 is a hydrogen atom or hydrocarbon R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 , are hydrogen atoms or hydrocarbon radicals, A is a sulphur (S) atom or an oxygen (O) atom; Q is a radical of formula (II), (III) or (IV) being bonded to the indenyl at the position indicated by the symbol *; (II), (III), (IV) wherein T 1 is a sulphur atom, an oxygen (O) atom or a NR; R 9 , R 10 and R 11 are hydrogen atoms or hydrocarbon radicals; T 2 , T 3 , T 4 , T 5 , and T 6 are carbon atoms (C) or nitrogen atoms (N); m 1 , m 2 , m 3 , m 4 and m 5 are 0 or 1; R 12 , R 13 , R 14 , R 15 and R 16 are hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R 12 , R 13 , R 14 , R 15 and R 16 is different from hydrogen atoms, and that no more than two of T 2 , T 3 , T 4 , T 5 and T 6 are nitrogen atoms.
Abstract translation:式(I)的茂金属化合物:其中M是锆,钛和铪; X是氢原子,卤原子或烃基; R 1是直链C 1 -C 20烷基; R 2是氢原子或烃R 3,R 4,R 5,R 6,R 7和R 8是氢原子或烃基,A是 硫(S)原子或氧(O)原子; Q是式(II),(III)或(IV)的基团在符号*表示的位置键合到茚基上; (II),(III),(IV)其中T 1是硫原子,氧(O)原子或NR; R 9,R 10和R 11是氢原子或烃基; T 2,T 3,T 4,T 5和T 6是碳原子(C)或氮原子(N); m 1,m 2,m 3,m 4和m 5分别为0或1; R 12,R 13,R 14,R 15和R 16是氢原子或烃基,条件是R 12,R 13, R 15和R 16不同于氢原子,T 2,T 3,T 4,T 5和T 6中不超过两个是 氮原子。
Abstract:
A salt of formula (I): [HKR 1 3 ] + [T 1 T 2 ] - wherein K is a nitrogen or phosphorous atom; R 1 is hydrocarbon radical; T 1 is a Lewis acid and T 2 is a substituted pyrrolyl radical. These salts can be used as cocatalyst in a process for the polymerization of alpha-olefins in conjunction with a transition metal organometallic compound.
Abstract translation:式(I)的盐:[HKR 1] 3 + [T 1 T 2]其中K是氮或磷原子; R 1是烃基; T 1是路易斯酸,T 2是取代的吡咯基。 这些盐可以在与过渡金属有机金属化合物结合的α-烯烃的聚合方法中用作助催化剂。