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    • 5. 发明申请
    • POLYOLEFIN PRODUCTION
    • 聚烯烃生产
    • WO2004046207A2
    • 2004-06-03
    • PCT/EP0313077
    • 2003-11-19
    • ATOFINA RES SARAZAVI ABBAS
    • RAZAVI ABBAS
    • C07F17/00C08F4/642C08F4/659C08F10/00C08F110/02C08F110/06C08F210/16
    • C07F17/00C08F4/65912C08F4/65916C08F10/00C08F110/02C08F110/06C08F210/16C08F4/65927C08F210/14
    • Provided is a catalyst component for producing a polyolefin, which catalyst component comprises a metallocene catalyst having a structure according to a formula (I): wherein Cp and Cp are each independently a cyclopentadienyl derivative which may be substituted or unsubstituted and are selected from cyclopentadienyl groups, indenyl groups and fluorenyl groups, provided that at least one of the cyclopentadienyl derivatives comprises an N atom or a P atom in it cyclopentadienyl ring; R" is a structural bridge to impart stereorigidity between Cp and Cp ; and when only one of Cp and Cp comprises a P atom in its cyclopentadienyl ring, R" is attached to that phosphorous atom, or is attached to a carbon atom in the cylopentadienyl ring distal to that phosphorous atom; and when one of Cp or Cp comprises an indenyl group and the other of Cp and Cp comprises an indolyl group, R" is attached either directly to the N atom of the indolyl group or to a carbon atom that is vicinal to the N atom; M is a metal from Group IIIB, IVB, VB or VIB; Q is a hydrocarbyl group having from 1-20 carbon atoms, or a halogen; and p is the valence of M minus 2.
    • 提供了一种用于制备聚烯烃的催化剂组分,该催化剂组分包括具有式(I)结构的茂金属催化剂:其中Cp 1和Cp 2各自独立地为可被取代或未取代的环戊二烯基衍生物 并且选自环戊二烯基,茚基和芴基,条件是至少一种环戊二烯基衍生物在其中包含N原子或P原子,环戊二烯基环; R“是赋予Cp 1和Cp 2之间立体刚性的结构桥;当Cp 1和Cp 2中仅有一个在其环戊二烯基环中包含P原子时,R”连接到该磷 或者连接在该磷原子远端的环戊二烯基环中的碳原子上; 当Cp 1或Cp 2中的一个包含茚基并且Cp 1和Cp 2中的另一个包含吲哚基时,R“直接连接到吲哚基的N原子或 到与N原子相邻的碳原子; M是IIIB,IVB,VB或VIB族的金属; Q是具有1-20个碳原子的烃基或卤素; p是M的化合价 减2。
    • 8. 发明专利
    • POLYOLEFIN PRODUCTION
    • CA2371835A1
    • 2000-08-24
    • CA2371835
    • 2000-02-18
    • ATOFINA RES SA
    • RAZAVI ABBAS
    • C08F4/6592C07F17/00C08F4/642C08F4/645C08F4/659C08F4/68C08F10/00C08F110/06C08F4/64
    • Use of a metallocene catalyst component for the preparation of a polyolefin which comprises an isotactic or polyolefin syndiotactic/isotactic block polyolefin having a monomer length of up to C10, which component has the general formula: R"(CpR1R2R3)(Cp'R1'R2')MQ2 wherein Cp is a cyclopentadienyl ring substituted with at least one substituent; Cp' is a substituted fluoren yl ring; R" is a structural bridge imparting stereorigidity to the component; R 1 is optionally a substituent on the cyclopentadienyl ring which is distal to the bridge, which distal substituent comprises a bulky group of the formula XR*3 in which X is chosen from Group IVA, and each R* is the same or differe nt and chosen from hydrogen or hydrocarbyl of from 1 to 20 carbon atoms, R2 is optionally a substituent on the cyclopentadienyl ring which is proximal to t he bridge and positioned non-vicinal to the distal substituent and is of the formula YR#3 in which Y is chosen from group IVA, and each R# is the same or different and chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, R3 is optionally a substituent on the cyclopentadienyl ring which is proximal t o the bridge and is a hydrogen atom or is of the formula ZR$3, in w hich Z is chosen from group IVA, and each R$ is the same of different an d chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, R1' and R2' are each independently substituent groups on the fluorenyl ring, one of which is a group of the formula AR'''3, in which A is chosen from Group IVA, and each R''' is independently hydrogen or a hydrocarbyl having 1 to 20 carbon atoms and the other is hydrogen or a second group of the formula AR'''3; M is a Group IVB transition metal or vanadium; and each Q is hydrocarbyl having 1 t o 20 carbon atoms or is a halogen.
    • 9. 发明专利
    • NO333351B1
    • 2013-05-13
    • NO20031432
    • 2003-03-28
    • ATOFINA RES SA
    • MARECHAL PHILIPPE
    • C08F10/02B01J19/18C08F2/00C08F2/14C08F297/08
    • A process for producing bimodal polyethylene resins in two reactors in series, the process comprising producing a first polyethylene resin fraction in a first slurry loop reactor in a diluent in the presence of a catalyst and producing a second polyethylene resin fraction in a second slurry loop reactor, serially connected to the first reactor, in the diluent in the presence of the catalyst, the first polyethylene resin fraction being passed from the first reactor to the second reactor together with the catalyst, one of the first and second reactors producing a resin fraction of higher molecular than the resin fraction produced by the other of the first and second reactors, characterised in that the first reactor is fed with a feed of ethylene and diluent having an ethylene content of at least 70 wt% based on the weight of the diluent and in that in the first reactor the slurry of polyethylene in the diluent has a solids content of at least 30 wt% based on the weight of the diluent.