发明名称 |
Reducing content of caprolactam and oligomers of copolyamide based on epsilon-caprolactam, comprises first washing of copolyamide with aqueous solution comprising epsilon-caprolactam and second washing of copolyamide with aqueous solution |
摘要 |
<p>Reducing content of caprolactam and oligomers of a copolyamide based on epsilon -caprolactam, whose melting temperature is 80-150[deg] C, comprises: a first washing of copolyamide with an aqueous solution comprising epsilon -caprolactam (20-60 wt.%) for 4-12 hours at 50-75[deg] C; and a second washing of copolyamide with an aqueous solution for 4-8 hours at 40-85[deg] C.</p> |
申请公布号 |
FR2930251(A1) |
申请公布日期 |
2009.10.23 |
申请号 |
FR20080055506 |
申请日期 |
2008.08.11 |
申请人 |
ARKEMA FRANCE SOCIETE ANONYME |
发明人 |
PINEAU QUENTIN;LOTTIAU MARIE FRANCOISE |
分类号 |
C08G69/46;C08G69/14;C08G69/36 |
主分类号 |
C08G69/46 |
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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