Title:
PRODUCTION OF POLYISOOLEFIN BY POLYMERIZATION IN THE PRESENCE OF NEW INITIATOR SYSTEM
Document Type and Number:
Japanese Patent JPH0931117
Kind Code:
A
Abstract:
To produce a high-molecular weight polyisoolefin by polymerizing isoolefin with optionally a specified monomer component in the presence of a specified initiator system.
Isoolefin of the formula: CH2=CR1R2 (wherein R1 is methyl; and R2 is a 1-10C alkyl or a 3-10C cycloalkyl) is copolymerized with optionally a 4-10C conjugated or nonconjugated diene and/or a cationically polymerizable 4-20C mono- or poly-unsaturated compound at a temperature of -100 to 200°C under a pressure of 0.1-100 bar in a solution, a susupension or a vapor phase in the presence of an initiator system comprising acyclic and/or cyclic aluminoxane compounds of formulas II and III (wherein Rx, Ry, Rz and Rw are each a 1-12C alkyl; and (m) is an integer of 5-30).
Inventors:
GERUHARUTO RANGUSHIYUTAIN
DEIITAA FURAITAAKU
MIHIYAERU RANTSUENDERUFUAA
KARIN BAISU
DEIITAA FURAITAAKU
MIHIYAERU RANTSUENDERUFUAA
KARIN BAISU
Application Number:
JP19519396A
Publication Date:
February 04, 1997
Filing Date:
July 08, 1996
Export Citation:
Assignee:
BAYER AG
International Classes:
C08F4/12; C08F2/12; C08F4/00; C08F4/06; C08F10/00; C08F10/10; C08F110/10; (IPC1-7): C08F4/12; C08F10/10
Attorney, Agent or Firm:
Heiyoshi Odashima