发明名称 |
METHOD OF PRODUCING A POLYAMIDE |
摘要 |
A method produces a polyamide having an extractable fraction of oligomer of from 2 to 10 percent. The method includes introducing a monomer into a reactor and polymerizing the monomer to form a first intermediate having an extractable fraction of oligomer of greater than 10 percent, wherein the oligomer is a compound of 2 to 20 units of the monomer. The method includes transferring the first intermediate from the reactor into an extractor and introducing water into the extractor to form a second intermediate having an extractable fraction of oligomer that is less than the extractable fraction of the first intermediate, wherein the water is introduced at a temperature of less than 100° C. and wherein the water includes 0.1 to 3.0 weight percent of a plasticizer. Moreover, the method includes transferring the second intermediate into a dryer and applying air at a temperature of less than 125° C. |
申请公布号 |
EP3131945(A1) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20150717398 |
申请日期 |
2015.04.09 |
申请人 |
BASF SE |
发明人 |
GRANT, William E.;SWANNER, Glenn B.;NOON, Eric S.;ORTIZ, Cesar G.;FLACK, Joseph T.;GRUETZNER, Rolf-Egbert |
分类号 |
C08G69/16 |
主分类号 |
C08G69/16 |
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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