Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SOLID POLYMETHYLALUMINOXANE COMPOSITION AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/055652
Kind Code:
A1
Abstract:
Disclosed are: a solid polymethylaluminoxane composition which does not utilize silica or the like, has the form of relatively fine particles, has more uniform particle sizes, and exhibits a high polymerization activity when used in the preparation of an olefin polymer; a process for producing the solid polymethylaluminoxane composition; a polymerization catalyst; and a process for producing an olefin polymer.  Specifically disclosed are: a solid polymethylaluminoxane composition which has an aluminum content of 36 to 41 mass% and contains a methyl group derived from a trimethylaluminum moiety at a molar fraction of 12 mol% or less; a process for producing the solid polymethylaluminoxane composition, which comprises the step of heating an aromatic hydrocarbon solution containing polymethylaluminoxane and trimethylaluminum to cause the precipitation of the solid polymethylaluminoxane composition; a polymerization catalyst for an olefin, which comprises the solid polymethylaluminoxane composition and a transition metal compound as catalyst components; and a process for producing an olefin polymer by using the polymerization catalyst.

Inventors:
KAJI EIICHI (JP)
Application Number:
PCT/JP2009/006019
Publication Date:
May 20, 2010
Filing Date:
November 11, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSOH FINECHEM CORP (JP)
KAJI EIICHI (JP)
YOSHIOKA ETSUO (JP)
International Classes:
C08F4/6592; C08F10/00; C08G79/10
Domestic Patent References:
WO1997023288A11997-07-03
Foreign References:
JP2005263749A2005-09-29
JPS63198691A1988-08-17
JPH02308802A1990-12-21
JP2001502714A2001-02-27
JP2008289211A2008-11-27
JPS5819309A1983-02-04
JPS6035005A1985-02-22
JPS62234009A1987-10-14
JPS63234009A1988-09-29
JPS6466214A1989-03-13
JPH01207355A1989-08-21
JPS60260602A1985-12-23
JPS6389506A1988-04-20
JPS63178108A1988-07-22
JPH01315407A1989-12-20
JPH0222308A1990-01-25
JP2000095810A2000-04-04
JPH08319309A1996-12-03
JPH07300486A1995-11-14
JPH0770144A1995-03-14
JPH0742301A1995-02-10
JP2000505785A2000-05-16
JPH0742301B21995-05-10
Other References:
See also references of EP 2360191A4
Attorney, Agent or Firm:
SIKs & Co (JP)
Patent business corporation patent firm Sykes (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: METHOD FOR PRODUCING METAL LAMINATED SUBSTRATE FOR OXIDE SUPERCONDUCTING WIRE, AND OXIDE SUPERCONDUC...

Next Patent: SEPARATOR FOR SEALED LEAD ACID BATTERY AND SEALED LEAD ACID BATTERY