Title:
METHOD FOR INHIBITING POLYMERIZATION OF STYRENE
Document Type and Number:
Japanese Patent JP3960508
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method in which an excellent polymerization inhibiting effect is realized at a low concentration of a inhibitor even at a high temperature, the effect is sustained for a lone period and stable operation of can be performed in a production and purifying process of styrenes.
SOLUTION: This method comprises the use of (A) piperidine-1-oxyls with (B) phenols having 2 or 3 hydroxyl groups in one benzene ring in combination in the presence of oxygen as a characteristic.
Inventors:
Nakajima Sadao
Koji Taketsuji
Koji Taketsuji
Application Number:
JP2000207786A
Publication Date:
August 15, 2007
Filing Date:
July 10, 2000
Export Citation:
Assignee:
Hakuto Co., Ltd.
International Classes:
C07C7/20; C07C15/46; C08F2/40; (IPC1-7): C07C7/20; C07C15/46; C08F2/40
Domestic Patent References:
| JP10504317A |
Foreign References:
| WO2000014039A1 |
Attorney, Agent or Firm:
Masahiro Tanaka