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    • 2. 发明申请
    • Multistep process for preparing heterophasic propylene copolymers
    • 制备多相丙烯共聚物的多步法
    • US20070060727A1
    • 2007-03-15
    • US10571389
    • 2004-08-06
    • Anteo PelliconiMaria Silvia TontiLuigi Resconi
    • Anteo PelliconiMaria Silvia TontiLuigi Resconi
    • C08F4/44
    • C08F10/00C08F4/65912C08F210/06C08F297/08C08F297/083C08L23/0815C08L23/14C08L2207/02C08L2308/00C08F4/65916C08F4/65927C08F2/001C08L2666/06C08F210/16C08F210/08C08F2500/18C08F2500/26
    • A multistage process comprising the step of polymerizing propylene in the presence the presence of a catalysts system, comprising one or more metallocene compound of formula (I): 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 bridging R1 and R2, are C1-C20-alkyl radicals; T, equal to or different from each other, is a moiety of formula (IIb) or (IIa): wherein R3, R4, R5, R6, R7, R3′, R4′, R5′, R6′ and R7′, are hydrogen atoms or hydrocarbon groups; with the proviso that at least one among R3, R4, R5, R6, R7 is different from hydrogen; R11 is a hydrogen atom or a hydrocarbon group; R8, R9 and R10, are hydrogen atoms or hydrocarbon groups; and further comprising the step of contacting, under polymerization conditions, in a gas phase, ethylene and one or more comonomers. Where the amount of the polymer obtained in the first step ranges from 5% by weight and 90% by weight, of the polymer obtained in the whole process.
    • 一种多级方法,包括在存在催化剂体系的情况下聚合丙烯的步骤,所述催化剂体系包含一种或多种式(I)的茂金属化合物:其中M是过渡金属的原子; p为0〜3的整数,X相同或不同,为氢原子,卤素原子或烃基; L是二价桥连R 1和R 2是C 1 -C 20 - 烷基; T为相同或不同的式(IIb)或(IIa)的部分:其中R 3,R 4,R 5, R SUP,R 6,R 7,R 3,S 4,R 4, 5',R 6'和R 7'是氢原子或烃基; 条件是R 3,R 4,R 5,R 6,R 6和R 6中至少有一个, SUP> 7 不同于氢; R 11是氢原子或烃基; R 9,R 9和R 10是氢原子或烃基; 并且还包括在聚合条件下在气相中接触乙烯和一种或多种共聚单体的步骤。 在第一步骤中获得的聚合物的量为5重量%和90重量%的整个方法中获得的聚合物的量。
    • 6. 发明授权
    • Olefin polymerization process
    • 烯烃聚合工艺
    • US07122606B2
    • 2006-10-17
    • US10563497
    • 2004-06-29
    • Maria Silvia TontiMarkus OberhoffVolker FraaijeBernd Bachmann
    • Maria Silvia TontiMarkus OberhoffVolker FraaijeBernd Bachmann
    • C08F2/38
    • C08F110/06C08F4/65912C08F4/65916Y10S526/904Y10S526/905C08F4/65927C08F2/06
    • A process for polymerizing one or more alpha-olefins of formula CH2═CHT wherein T is a hydrogen atom or a C1–C20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70° C.; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.
    • 用于聚合一种或多种式CH 2 -CHT的α-烯烃的方法,其中T是氢原子或C 1 -C 20 - 烷基,其包括以下步骤:a)在环流反应器中以连续方式使一种或多种所述α-烯烃与茂金属基催化剂体系接触,其中:(i)反应在液体介质中进行; (ii)金属茂系催化剂体系的平均停留时间不超过30分钟; (iii)环路温度为25°至70°C; 以获得每克催化剂体系60至500g的聚合度; b)将在步骤a)中获得的预聚合的茂金属基催化剂体系连续进料到聚合反应器中C)使所述α-烯烃在所述 预聚金属茂系催化剂体系。
    • 9. 发明授权
    • Process for producing fractionable 1-butene polymers
    • 生产可分级的1-丁烯聚合物的方法
    • US07776978B2
    • 2010-08-17
    • US11632612
    • 2005-06-10
    • Maria Silvia TontiLuigi Resconi
    • Maria Silvia TontiLuigi Resconi
    • C08F4/622C08F4/625C08F4/6392C08F4/642C08F4/6592B01J31/12B01J31/22
    • C08F10/00C08F4/65912C08F4/65927C08F110/08Y10S526/943C08F4/65904C08F2500/03C08F2500/17C08F2500/20C08F2/001
    • A process for producing a 1-butene polymer comprising the step of polymerizing 1-butene in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (Ia) in the 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 C1-C40 hydrocarbon radical R1 and R2, equal to or different from each other, are C1-C40 hydrocarbon radicals; T, equal to or different from each other, is a moiety of formula (IIa), (IIb) or (IIc): wherein R3 and R5 are a C1-C40 hydrocarbon radical; R4 and R6, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals and R7 and R8, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals b) at least a metallocene compound of formula (Ib) in the racemic (rac) or racemic-like form c) an alumoxane or a compound capable of forming an alkyl metallocene cation.
    • 一种制备1-丁烯聚合物的方法,包括在催化剂体系存在下聚合1-丁烯的步骤,所述催化剂体系可通过以下步骤获得:b)至少一种中内消旋或内消旋形式的式(Ia)金属茂化合物:其中 M为过渡金属的原子,p为0〜3的整数,X相同或不同,为氢原子,卤素原子或烃基。 L是二价C1-C40烃基R1和R2彼此相同或不同的是C1-C40烃基; T为相同或不同的式(IIa),(IIb)或(IIc)的部分:其中R3和R5为C1-C40烃基; R 4和R 6彼此相同或不同,为氢原子或C 1 -C 40烃基,R 7和R 8彼此相同或不同,为氢原子或C 1 -C 40烃基b)至少金属茂化合物 式(Ib)的外消旋(rac)或外消旋形式的c)铝氧烷或能够形成烷基金属茂阳离子的化合物。