| 发明名称 |
Aliphatic polyureas from polyoxyalkylene polyamines, aliphatic diisocyanates and sym-dialkylethylenediamines |
| 摘要 |
Disclosed is a method for preparing aliphatic polyureas in varying reaction times which comprises reacting polyoxyalkylene polyamines, an aliphatic diisocyanate and a sym-dialkylethylenediamine.
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| 申请公布号 |
US5140090(A) |
申请公布日期 |
1992.08.18 |
| 申请号 |
US19910712817 |
申请日期 |
1991.06.10 |
| 申请人 |
TEXACO CHEMICAL COMPANY |
发明人 |
CHAMPION, DONALD H.;SPERANZA, GEORGE P. |
| 分类号 |
C08G18/32;C08G18/10;C08G18/50;C08G18/65;C08G18/66;C08G18/72;C08G18/73;C08G18/76 |
主分类号 |
C08G18/32 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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