专利名称：Use of heterogeneous catalysts in methods
for the production of polyamides
发明人：Ralf Mohrschladt,Volker Hildebrandt申请号：US09889158申请日：20010711公开号：US06590064B1公开日：20030708
专利附图：
摘要：Described is the use of metal oxides as heterogeneous catalysts in a process forproducing polyamides by polymerization of lactams and optionally further polyamide-forming monomers wherein the metal oxides are used in a form which permits mechanical
removal from the reaction mixture and are removed from the reaction mixture during orafter the polymerization, to reduce the extractables content of the polyamide obtained.
申请人：BASF AKTIENGESELLSCHAFT
代理机构：Keil & Weinkauf
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