Title:
イソブチレン系重合体の製造方法
Document Type and Number:
Japanese Patent JP4748060
Kind Code:
B2
Abstract:
Disclosed is a method for stably and efficiently removing a catalyst from an isobutylene polymer by improving the separatability of an organic phase and an aqueous phase during the operation wherein a catalyst is washed out from a reaction solution containing an isobutylene polymer by means of water. Specifically disclosed is a method for producing an isobutylene polymer which is characterized in that the water containing 0.00005 - 0.005 weight % of a nonionic polymer surfactant having a hydroxyl group is used when a reaction solution after polymerization which contains an isobutylene polymer is cleaned with water after deactivating the catalyst by treating the reaction solution with water and removing the aqueous phase.
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Inventors:
Terazawa
Application Number:
JP2006514698A
Publication Date:
August 17, 2011
Filing Date:
June 07, 2005
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
C08F6/12; C08F6/02; C08F6/08; C08F10/10; C08F297/00
Domestic Patent References:
| JP2002356509A | 2002-12-13 | |||
| JP2004123886A | 2004-04-22 | |||
| JP2001131222A | 2001-05-15 | |||
| JPH09255716A | 1997-09-30 | |||
| JPH07196724A | 1995-08-01 | |||
| JP2004506759A | 2004-03-04 |
Foreign References:
| WO2005105860A1 | 2005-11-10 |
Attorney, Agent or Firm:
Takao Yanagino