| 发明名称 |
Process for modifying aliphatic polyamides with polyurea |
| 摘要 |
The end groups of an aliphatic polyamide may be changed by reacting a polyurea with a molten aliphatic polyamide at temperatures of about 260 DEG C or more. Carboxyl end groups are controllably converted to amine end groups. This is especially useful for controlling the dyeability of fibers spun from such aliphatic polyamides. |
| 申请公布号 |
AU7434196(A) |
申请公布日期 |
1997.05.22 |
| 申请号 |
AU19960074341 |
申请日期 |
1996.10.16 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MARK F. TEASLEY |
| 分类号 |
B29C47/00;B29K77/00;C08G69/48;C08G81/00;C08L77/00;C08L77/02;C08L77/06;C08L87/00;D01F6/90 |
主分类号 |
B29C47/00 |
| 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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