发明名称 PROCESS FOR PRODUCING POLYAMIDE THAT IS STABLE DURING PROCESSING
摘要 Process for producing polyamides that are stable during processing, by treating the polyamide during the solid-phase postcondensation process with a gas which comprises carrier gas (inert gas), water, and acid, or an anhydride or lactone or a mixture of these or, respectively, comprises ammonia, or amine, or a mixture of these, at a temperature from 130 to 200° C. and at a pressure of from 0.01 to 10 bar.
申请公布号 US2012065339(A1) 申请公布日期 2012.03.15
申请号 US201113226568 申请日期 2011.09.07
申请人 GRUETZNER ROLF-EGBERT;RAMAMOORTHY SHANKARA NARAYANAN KEELAPANDAL;EL-TOUFAILI FAISSAL-ALI;GERSTLAUER ACHIM;STAMMER ACHIM;BASF SE 发明人 GRUETZNER ROLF-EGBERT;RAMAMOORTHY SHANKARA NARAYANAN KEELAPANDAL;EL-TOUFAILI FAISSAL-ALI;GERSTLAUER ACHIM;STAMMER ACHIM
分类号 C08G69/48 主分类号 C08G69/48
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