| 发明名称 |
Method for inhibiting the polymerization of vinyl aromatics |
| 摘要 |
PCT No. PCT/IB94/00240 Sec. 371 Date Jan. 23, 1996 Sec. 102(e) Date Jan. 23, 1996 PCT Filed Jul. 18, 1994 PCT Pub. No. WO95/03263 PCT Pub. Date Feb. 2, 1995A method for inhibiting the polymerization of vinyl aromatics such as styrene with a mixture of 3,5-di-tert-butyl-4-hydroxy-N,N-dimethylbenzyl amine and carboxylic acids or anhydrides thereof, in the presence of air or oxygen. The weight ratio of said 3,5-Di-tert-butylhydroxy-N,N-dimethylbenzyl amine, carboxylic acid (or carboxylic acid anhydride) and the air is 1:1 to 0.05:0.05 to 15, respectively.
|
| 申请公布号 |
US5744672(A) |
申请公布日期 |
1998.04.28 |
| 申请号 |
US19960586781 |
申请日期 |
1996.01.23 |
| 申请人 |
KOURBATOV, VLADIMIR ANATOLIEVICH;BOREYKO, NATALJYA PAVLOVNA;ZOUEV, VALERII PAVLOVICH;LIAKUMOVICH, ALEXANDR GRIGORIEVICH |
发明人 |
KOURBATOV, VLADIMIR ANATOLIEVICH;BOREYKO, NATALJYA PAVLOVNA;ZOUEV, VALERII PAVLOVICH;LIAKUMOVICH, ALEXANDR GRIGORIEVICH |
| 分类号 |
C07D213/16;C07B63/04;C07C7/20;C07C15/44;C07C15/46;(IPC1-7):C07C5/333 |
主分类号 |
C07D213/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
