| 发明名称 |
Tertiary aralkyl urethanes and isocyanates derived therefrom |
| 摘要 |
Production of tertiary aralkyl isocyanates, such as tetramethyl xylylene diisocyanates, by thermal cracking of corresponding urethanes formed by addition of corresponding olefins and carbamic acid esters at moderate temperatures and in the presence of acid catalyst. |
| 申请公布号 |
US4439616(A) |
申请公布日期 |
1984.03.27 |
| 申请号 |
US19820400799 |
申请日期 |
1982.07.22 |
| 申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
SINGH, BALWANT;CHANG, LAURENCE W.;FORGIONE, PETER S. |
| 分类号 |
C07C263/04;B05D7/26;C07C67/00;C07C239/00;C07C241/00;C07C265/00;C07C265/08;C07C265/14;C07C269/02;C07C269/06;C07C271/06;C07C271/10;C08G18/76;(IPC1-7):C07C125/07;C07C125/06 |
主分类号 |
C07C263/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
