Title:
CATALYST FOR PROPYLENE COPOLYMERIZATION AND PRODUCTION OF PROPYLENE COPOLYMER
Document Type and Number:
Japanese Patent JP3779016
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a high-mol.-wt. propylene copolymer without being accompanied by fouling, by polymerizing propylene at a high temp. in the presence of a catalyst comprising a cocatalyst component obtd. by the contact of an ionic compd. with a fine particulate carrier, a metallocane compd., an organoaluminum compd., and an organometallic compd.
SOLUTION: The 'high temp.' means 60-85°C. The ionic compd. is represented by formula I: [M1(R1)a(R2)b(R3)c(R4-L)d]-[D]+ (wherein M1 is B or Al; R1 to R3 are each a 1-20C hydrocarbon group, etc., R4 is a 1-20C heteroatom-contg. hydrocarbon group; L is silyl, etc.; D is a monovalent cation; (a) to (c) are each 0-3; and (d) is 1-4). The fine particulate carrier is, e.g. silica. The metallocene compd. is represented by formula II (wherein R5 to R10 are each H, a halogen, an alkoxy, etc.; M2 to M4 are each C, Si, Ge, or Sn; M5 is Ti, Zr, Hf, or V; (p), (q), and (r) and each 0-2; Q is a specific hydrocarbon group; and X is a halogen H, etc.). The organometallic compd. is, e.g. an organolithium.
Inventors:
Satoshi Ishigaki
Nikkuma Shinji
Shintaro Inazawa
Nikkuma Shinji
Shintaro Inazawa
Application Number:
JP1856397A
Publication Date:
May 24, 2006
Filing Date:
January 31, 1997
Export Citation:
Assignee:
Japan Polyolefins Co., Ltd.
International Classes:
C08F4/642; C08F4/6592; C08F10/06; C08F210/06; (IPC1-7): C08F4/642; C08F10/06
Foreign References:
| WO1996041808A1 |
Attorney, Agent or Firm:
Kunihisa Landlord
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