Preparation and use of heterogeneous catalyst components for olefins polymerization
申请人:Llinas Hidalgo Gerardo
公开号:US20050065018A1
公开(公告)日:2005-03-24
Heterogeneous catalytic component obtainable by reacting a porous inorganic support with a metallocene compound characterized in that the metallocene compound is defined by the following general formulas:
wherein:
L, equal to or different from each other, is selected from the group comprising: cyclopentadienyl, indenyl, tetrahydroindenyl, fluorenyl, octahydrofluorenyl or benzoindenyl; each R is independently selected from hydrogen, C
1
-C
20
alkyl, C
3
-C
20
cycloalkyl, C
6
-C
20
aryl, C
3
-C
20
alkenyl, C
7
-C
20
arylalkyl, C
7
-C
20
alkylaryl, C
8
-
20
arylalkenyl, linear or branched, optionally substituted by 1 to 10 halogen atoms, or a group SiR
II
3
; each R
I
equal to or different from each other is a divalent aliphatic or aromatic hydrocarbon group containing from 1 to 20 carbon atoms, optionally containing from 1 to 5 heteroatoms of groups 14 to 16 of the periodic table of the elements and boron; each Q is independently selected from B, C, Si, Ge, Sn; M is a metal of group 3, 4 or 10 of the Periodic Table, Lanthanide or Actinide; each X is independently selected from: hydrogen, chlorine, bromine, OR
II
, NR
II
2
, C
1
-C
20
alkyl or C
6
-C
20
aryl; each R
II
is independently selected from C
1
-C
20
alkyl , C
3
-C
20
cycloalkyl, C
6
-C
20
aryl, C
3
-C
20
alkenyl C
7
-C
20
arylalkyl, C
7
-C
20
arylalkenyl or alkylaryl, linear or branched; R
II
is methyl, ethyl isopropyl; L′ is N or O; when L is cyclopentadienyl k is equal to 5, when L is indenyl k is equal to 7, when L is fluorenyl or benzoindenyl k is equal to 9, when L is tetrahydroindenyl k is equal to 11 and when L is octahydrofluorenyl, k is equal to 17; z is equal to 0, 1 or 2; x is equal to 1, 2 or 3; y is equal to 1, 2 or 3; x+y+z is equal to the valence of M; m is an integer which can assume the values 1, 2, 3 or 4; a and b are integers whose value ranges from 0 to k-1; f is an integer whose value ranges from 1 to k; g is 0 or 1; c and e are equal to 0 or 1; a+b+c is at least 1; a+g+c is at least 1; d is equal to 0, 1 or 2; when Q is B, then c+d=1; when Q is C, Si, Ge or Sn, then c+d=2; when L′ is N, then g+e=1; when L′ is O, then g=0 and e=0.
通过将多孔无机支撑物与
金属茂化合物反应而得到的异质催化组分,其特征在于所述
金属茂化合物由以下一般公式定义:
其中:
L,相等或不同,选自包括
环戊二烯基、
茚基、四氢
茚基、
芴基、八氢
芴基或苯并
茚基的群体;
每个R独立地选自氢、C1-C20烷基、C3-C20环烷基、C6-C20芳基、C3-C20烯基、C7-C20芳基烷基、C7-C20烷基芳基、C8-20芳基烯基、线性或支链,可选地被1到10个卤素原子取代,或者是SiRII3基团;
每个RI相等或不同,是一个含有1到20个碳原子的二价脂肪族或芳香族碳氢基团,可选地含有周期表14到16组和
硼的1到5个杂原子;
每个Q独立地选自B、C、Si、Ge、Sn;
M是周期表3、4或10组的
金属、
镧系元素或
锕系元素;
每个X独立地选自:氢、
氯、
溴、ORII、NRII2、C1-C20烷基或C6-C20芳基;
每个RII独立地选自C1-C20烷基、C3-C20环烷基、C6-C20芳基、C3-C20烯基、C7-C20芳基烷基、C7-C20芳基烯基或烷基芳基,线性或支链;
RII是甲基、乙基或异丙基;
L'是N或O;当L为
环戊二烯基时,k等于5,当L为
茚基时,k等于7,当L为
芴基或苯并
茚基时,k等于9,当L为四氢
茚基时,k等于11,当L为八氢
芴基时,k等于17;
z等于0、1或2;
x等于1、2或3;
y等于1、2或3;
x+y+z等于M的价;
m是可以取值为1、2、3或4的整数;
a和b是值在0到k-1之间的整数;
f是值在1到k之间的整数;
g等于0或1;
c和e等于0或1;
a+b+c至少为1;
a+g+c至少为1;
d等于0、1或2;当Q为B时,c+d=1;当Q为C、Si、Ge或Sn时,c+d=2;当L'为N时,g+e=1;当L'为O时,g=0且e=0。