发明名称 |
N,N'-disubstituted N-(2-hydroxyalkyl)-ureas |
摘要 |
Non-crystallizing N,N'-disubstituted N-(2-hydroxyalkyl)-ureas are used as hydrolysis protection agents in plastics containing ester groups. These disubstituted hydroxy-alkylureas impart excellent protection from hydrolysis to plastics containing ester groups and can be added directly to the plastics to be stabilized without the addition of special solvents.
|
申请公布号 |
US6177494(B1) |
申请公布日期 |
2001.01.23 |
申请号 |
US19990366527 |
申请日期 |
1999.08.02 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
KOPP RICHARD;BARNES JAMES-MICHAEL;RUPRECHT HANS-DIETER;WUSSOW HANS-GEORG |
分类号 |
C07D251/34;C08K5/21;C08K5/3492;C08L101/00;(IPC1-7):C08J3/00;C08L75/00;C08G18/81;C07D273/04 |
主分类号 |
C07D251/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|