Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
アタクチック1-ブテンポリマー類の製造方法
Document Type and Number:
Japanese Patent JP4897670
Kind Code:
B2
Abstract:
A process for obtaining atactic 1-butene polymer optionally containing at least one comonomer selected from ethylene, propylene or an alpha-olefin of formula CH2═CHRo, wherein Ro is a linear or branched C3-C20 alkyl group, comprising the step of polymerizing 1-butene and optionally ethylene, propylene or said alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) at least one metallocene compound of formula (I) in its 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 optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; R1 and R2, are C1-C40 hydrocarbon radicals; T, equal to or different from each other, is a moiety of formula (IIa) or (IIb): wherein R3 is a C1-C40 hydrocarbon radical; R4 and R6, are hydrogen atoms or C1-C40 hydrocarbon radicals; R5 is a C1-C40 hydrocarbon radical; R7 and R8, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals; and b) an alumoxane or a compound capable of forming an alkyl metallocene cation.

More Like This:
JP2018145425CYCLIC OLEFIN RESIN COMPOSITION, METHOD FOR PRODUCING THE SAME, AND MOLDING
JP7273846Metal complexes containing amidine and thiophene-fused cyclopentadienyl ligands
JP4196510Modified particles, a carrier made of the same, a catalyst component for olefin polymerization made of the modified particles, a catalyst for olefin polymerization made of the same, and a method for producing an olefin polymer.
Inventors:
Lesconi, Luigi
Guide stitch, Simona
Application Number:
JP2007511958A
Publication Date:
March 14, 2012
Filing Date:
April 25, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Basel, Polyolefin, Game Beher
International Classes:
C08F4/6592; C08F10/08; C08F4/659; C08F110/08; C08F210/08
Domestic Patent References:
JP2003517010A2003-05-20
JP2003096135A2003-04-03
JPH11269227A1999-10-05
JP2000191854A2000-07-11
JP2004530029A2004-09-30
JPH06157662A1994-06-07
Foreign References:
EP0930320A11999-07-21
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takako Koiso



 
Previous Patent: JPS4897669

Next Patent: JPS4897671